Official Monoprice THX Subwoofers - Page 53 - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 654Likes
Reply
 
Thread Tools
post #1561 of 1750 Old 03-05-2020, 10:16 PM
Senior Member
 
jamesyates's Avatar
 
Join Date: Oct 2013
Posts: 232
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 180 Post(s)
Liked: 45
Protection Mode

On black Friday I bought 4x M10-S to replace two Elac S-12 subs. I like the subs and they produce tight clear bass compared to the 2x ElacS but they lack a punch. Each M10-S is placed in the four corners of the room (then Harman research way) in a rear and front pair connected and piggybacked via xlr. When I set them up using Audyssey on my Marantz Av7702mk2 using the thx volume setting they were way to loud. Manually had to turn the volume on each sub to -15 to get a 75db level from each pair. Audyssey set my trim levels to -3 for sub pair 1 and -5 for sub pair 2. The room is an attic space with vaulted ceilings about 16x18. (See picture)


Tonight I had some time to test there output (I have too small kids and the hobby has suffered). After playing the Napalm Scene in Apocalypse Now At a volume of -5 3 of 4 subs turned off and a red flashing light came on. Has anyone else had this happen? For a 16x18 room with low vaulted ceiling two subwoofer should be enough to easily meet thx standards. Starting to think I should of bought the 12inh. Any advice?
Attached Thumbnails
Click image for larger version

Name:	E72DA9B4-501B-4465-823B-606BAF569FD9.jpg
Views:	111
Size:	95.8 KB
ID:	2694156  
jamesyates is offline  
Sponsored Links
Advertisement
 
post #1562 of 1750 Old 03-06-2020, 07:45 AM
Senior Member
 
MegaFlop's Avatar
 
Join Date: Aug 2002
Location: Pasco, WA
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 53 Post(s)
Liked: 109
Quote:
Originally Posted by jamesyates View Post
Tonight I had some time to test there output (I have too small kids and the hobby has suffered). After playing the Napalm Scene in Apocalypse Now At a volume of -5 3 of 4 subs turned off and a red flashing light came on. Has anyone else had this happen? For a 16x18 room with low vaulted ceiling two subwoofer should be enough to easily meet thx standards. Starting to think I should of bought the 12inh. Any advice?

I haven't had that exact issue. I have a pair of M10s (vented) in a room about half the volume of yours. They are plenty of bass in my space. I will say unfortunately you should have got the vented M10s. There is basically no advantage to sealed (I have ran mine with ports closed and the bass quality is excellent either way). You give up a ton of output at 20hz with the sealed model.


One potential issue is what kind of power is in your attic? Are all the subs on the same circuit? 4 500 watt subs on one circuit is a lot and sealed will use more power then vented. Also I would try to balance the subs so they all run the same gain. I feel mine seem to respond best when set at +6db on the sub and then adjusted from there at the receiver. I have run my pair hard and have never tripped the protection.


Maybe your room EQ in the receiver is running a lot of bass boost? Try running the subs without EQ and see what happens. You should need minimal EQ with 4 subs in that room.
MegaFlop is offline  
post #1563 of 1750 Old 03-06-2020, 07:55 AM
AVS Forum Addicted Member
 
Dan Hitchman's Avatar
 
Join Date: Jul 2000
Location: Northern Colorado
Posts: 15,133
Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 4999 Post(s)
Liked: 3020
Quote:
Originally Posted by jamesyates View Post
On black Friday I bought 4x M10-S to replace two Elac S-12 subs. I like the subs and they produce tight clear bass compared to the 2x ElacS but they lack a punch. Each M10-S is placed in the four corners of the room (then Harman research way) in a rear and front pair connected and piggybacked via xlr. When I set them up using Audyssey on my Marantz Av7702mk2 using the thx volume setting they were way to loud. Manually had to turn the volume on each sub to -15 to get a 75db level from each pair. Audyssey set my trim levels to -3 for sub pair 1 and -5 for sub pair 2. The room is an attic space with vaulted ceilings about 16x18. (See picture)


Tonight I had some time to test there output (I have too small kids and the hobby has suffered). After playing the Napalm Scene in Apocalypse Now At a volume of -5 3 of 4 subs turned off and a red flashing light came on. Has anyone else had this happen? For a 16x18 room with low vaulted ceiling two subwoofer should be enough to easily meet thx standards. Starting to think I should of bought the 12inh. Any advice?

Also, besides what has been said already, make sure your sub output is LFE and not MAIN + LFE. You get double bass that way.


I will second the suggestion of checking your power circuits. You need some serious dedicated lines if you're running a lot of subs that suck up the power. If there is room in the panel, I would have two dedicated 20 amp breakers and have two subs on each dedicated line. You have to run 12 gauge electrical wire like Romex (normally yellow colored) for 20 amp circuits.

Listen up, studios! Dolby Atmos Lite™ print-outs must stop!!

Last edited by Dan Hitchman; 03-06-2020 at 07:59 AM.
Dan Hitchman is online now  
Sponsored Links
Advertisement
 
post #1564 of 1750 Old 03-06-2020, 10:22 AM
Senior Member
 
jamesyates's Avatar
 
Join Date: Oct 2013
Posts: 232
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 180 Post(s)
Liked: 45
Quote:
Originally Posted by Dan Hitchman View Post
Also, besides what has been said already, make sure your sub output is LFE and not MAIN + LFE. You get double bass that way.


I will second the suggestion of checking your power circuits. You need some serious dedicated lines if you're running a lot of subs that suck up the power. If there is room in the panel, I would have two dedicated 20 amp breakers and have two subs on each dedicated line. You have to run 12 gauge electrical wire like Romex (normally yellow colored) for 20 amp circuits.
Everything in the room (amps,projector subs etc.) is on one Dedicated 15amps circuit. Yes that is not great, but wouldn’t a power issue cause the Breaker to trip? I do plan two 20 amp circuits in the near future. I do have a voltage meter that is plugged into one of the outlets and with everything off it reads 122. Everything on 119 to 120.

I have tried adjusting the gain but when I turn them up a one notch the gain in the AV7702mk2 is around or is at -12. -12 is a far as - gain goes.

The subs are set for LFE only at 120.

I will try no EQ this weekend and also try running the subs only to make sure they have more power available. I will let you know what happens.

Thanks everyone for your input.
jamesyates is offline  
post #1565 of 1750 Old 03-06-2020, 10:31 AM
Senior Member
 
MegaFlop's Avatar
 
Join Date: Aug 2002
Location: Pasco, WA
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 53 Post(s)
Liked: 109
Quote:
Originally Posted by jamesyates View Post
Everything in the room (amps,projector subs etc.) is on one Dedicated 15amps circuit. Yes that is not great, but wouldn’t a power issue cause the Breaker to trip? I do plan two 20 amp circuits in the near future. I do have a voltage meter that is plugged into one of the outlets and with everything off it reads 122. Everything on 119 to 120.

Thanks everyone for your input.

Yeah this is most likely your problem. The instantaneous power draw from the subs might be causing the line voltage to sag enough to trigger the subs protection circuits. This could happen without the breaker tripping (takes more of a constant high load to trip the breaker). Try running your setup with just one or two subs and see if they still go into protection mode.


Watch your voltage meter during a bass heavy scene and see what it reads. It might be worth checking with Monoprice to see what can trigger the protection circuit. Those subs have DSP limiters and seem very protected from being over driven. Like I said I have never hit the protection on mine and I have driven them hard.


Also yeah if the receiver is maxing out at -12 for the sub level you definitely need to back the gain on the subs off. You might be running them too hot. I would shoot for a -6db reading on the receiver for a flat calibration.

Last edited by MegaFlop; 03-06-2020 at 10:35 AM.
MegaFlop is offline  
post #1566 of 1750 Old 03-07-2020, 08:44 AM
AVS Forum Special Member
 
Laserfan's Avatar
 
Join Date: Apr 2000
Location: USA
Posts: 4,159
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
Liked: 192
Quote:
Originally Posted by MegaFlop View Post
Yeah this is most likely your problem. The instantaneous power draw from the subs might be causing the line voltage to sag enough to trigger the subs protection circuits. This could happen without the breaker tripping (takes more of a constant high load to trip the breaker). Try running your setup with just one or two subs and see if they still go into protection mode.
MegaFlop has it right I think. Voltage sags then current rises and while yes one might think the breaker should pop, they are just not that sensitive as is (likely) the built-in protection.

I got two THX 12s and have not yet deployed them, fretting over power availability. I think I will have to run another circuit...
rwestley likes this.
Laserfan is online now  
post #1567 of 1750 Old 03-08-2020, 01:00 PM
Senior Member
 
jamesyates's Avatar
 
Join Date: Oct 2013
Posts: 232
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 180 Post(s)
Liked: 45
Quote:
Originally Posted by MegaFlop View Post
Yeah this is most likely your problem. The instantaneous power draw from the subs might be causing the line voltage to sag enough to trigger the subs protection circuits. This could happen without the breaker tripping (takes more of a constant high load to trip the breaker). Try running your setup with just one or two subs and see if they still go into protection mode.


Watch your voltage meter during a bass heavy scene and see what it reads. It might be worth checking with Monoprice to see what can trigger the protection circuit. Those subs have DSP limiters and seem very protected from being over driven. Like I said I have never hit the protection on mine and I have driven them hard.


Also yeah if the receiver is maxing out at -12 for the sub level you definitely need to back the gain on the subs off. You might be running them too hot. I would shoot for a -6db reading on the receiver for a flat calibration.
Tried everything again this weekend and I was not able to purposely make the 4x subwoofers to go into protection mode. I monitored the voltage and during the napalm scene in Apocalypse Now it went down to 113v. The power usually runs around 119-121v.

As for the subs tripping on a weekday. There may of just been a little less power available. I do not remember running a washing machine etc. in the house, but that is also possible.

For a 20 amp line does all the wiring behind the walls need to be re-installed?

I have four subwoofers in each corner of the room plugged in to the outlets nearest to each corner. All my audio/video and room lights are on one line.
jamesyates is offline  
post #1568 of 1750 Old 03-08-2020, 01:10 PM
AVS Forum Addicted Member
 
Dan Hitchman's Avatar
 
Join Date: Jul 2000
Location: Northern Colorado
Posts: 15,133
Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 4999 Post(s)
Liked: 3020
Quote:
Originally Posted by jamesyates View Post
Tried everything again this weekend and I was not able to purposely make the 4x subwoofers to go into protection mode. I monitored the voltage and during the napalm scene in Apocalypse Now it went down to 113v. The power usually runs around 119-121v.

As for the subs tripping on a weekday. There may of just been a little less power available. I do not remember running a washing machine etc. in the house, but that is also possible.

For a 20 amp line does all the wiring behind the walls need to be re-installed?

I have four subwoofers in each corner of the room plugged in to the outlets nearest to each corner. All my audio/video and room lights are on one line.
20 amp breakers/circuits must be wired with 12 gauge electrical cable (Romex or equivalent brand). If most of your circuits are 15, you have 14 gauge wire in the walls. So you must run new wire between the new 20 amp breaker to a 20 amp outlet. If you aren’t maxed out at the main panel, I would put two subs on each 20 amp line for extra headroom just in case. Four on one 20 may still cause issues depending on the peak and inrush draw of the subs.

Listen up, studios! Dolby Atmos Lite™ print-outs must stop!!
Dan Hitchman is online now  
post #1569 of 1750 Old 03-10-2020, 05:59 AM
AVS Forum Special Member
 
drh3b's Avatar
 
Join Date: Feb 2017
Location: Saint Louis, MO
Posts: 4,501
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 2431 Post(s)
Liked: 5363

My Stuff.
Spoiler!
drh3b is offline  
post #1570 of 1750 Old 03-10-2020, 08:57 AM
Senior Member
 
diablo900t's Avatar
 
Join Date: Oct 2005
Location: Florida
Posts: 228
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 115 Post(s)
Liked: 72
New to this thread, but seeing a pretty good deal on the M15-S right now. I can't find much (beyond one review here on AVSforum) regarding the sealed version vs. the ported. I'm currently running dual SVS PB-2000s, and trying to determine if the Monolith M15-S would be a significant upgrade. Thoughts?
diablo900t is online now  
post #1571 of 1750 Old 03-10-2020, 12:43 PM
Member
 
djjaeger's Avatar
 
Join Date: Sep 2006
Posts: 110
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 49 Post(s)
Liked: 23
Quote:
Originally Posted by diablo900t View Post
New to this thread, but seeing a pretty good deal on the M15-S right now. I can't find much (beyond one review here on AVSforum) regarding the sealed version vs. the ported. I'm currently running dual SVS PB-2000s, and trying to determine if the Monolith M15-S would be a significant upgrade. Thoughts?
Also curious to hear opinions. I'm on dual SVS SB-2000s (still in my 45d trial period), and they don't do enough to fill my large space. Honestly I was going to go Dual ported Rythmik FVX15's but with the Monoprice M15-S below $800, that seems like an insane deal thats hard to pass up!

System: LG OLED65C8PUA, Onkyo TX-RZ830, Monoprice Monolith 7x200
Speakers: 7.2 config: Polk 2xLSIM707, LSIM706c, 2xLSIM702f/x, 2xLSIM703, 2xMonoprice M15-S
Devices: Nvidia Shield TV 2019, Microsoft Xbox One X, LG UBK90 UHD, Win7 MediaCenter HTPC, HD Homerun Prime Network Tuner
djjaeger is offline  
post #1572 of 1750 Old 03-10-2020, 12:59 PM
Senior Member
 
MegaFlop's Avatar
 
Join Date: Aug 2002
Location: Pasco, WA
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 53 Post(s)
Liked: 109
Quote:
Originally Posted by diablo900t View Post
New to this thread, but seeing a pretty good deal on the M15-S right now. I can't find much (beyond one review here on AVSforum) regarding the sealed version vs. the ported. I'm currently running dual SVS PB-2000s, and trying to determine if the Monolith M15-S would be a significant upgrade. Thoughts?

https://www.audioholics.com/subwoofe...svs-sb-pb-2000
https://www.audioholics.com/subwoofe...s-and-analysis


PB-2000 / SB-2000 CEA 2010 Results (2 meter RMS) / Monolith 15 sealed

20Hz 103.8 / 92.1 dB / 104.7

25Hz 107.6 / 97.1 dB / 109.2

31.5Hz 109.6 / 102.8 dB / 112.2

40Hz 110.1 / 108.3 dB / 114.1

50Hz 110.5 / 108.9 dB / 114.6

63Hz 111.5 / 109.2 dB / 114.5


It looks to me like a Monolith 15s is a small improvement over a PB-2000 and a huge improvement over a SB-2000.

Better in the mid-bass than either and comparable (slightly better) in the deep bass to the PB-2000.
diablo900t likes this.
MegaFlop is offline  
post #1573 of 1750 Old 03-10-2020, 01:03 PM
Member
 
djjaeger's Avatar
 
Join Date: Sep 2006
Posts: 110
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 49 Post(s)
Liked: 23
Quote:
Originally Posted by MegaFlop View Post
https://www.audioholics.com/subwoofe...svs-sb-pb-2000
https://www.audioholics.com/subwoofe...s-and-analysis


PB-2000 / SB-2000 CEA 2010 Results (2 meter RMS) / Monolith 15 sealed

20Hz 103.8 / 92.1 dB / 104.7

25Hz 107.6 / 97.1 dB / 109.2

31.5Hz 109.6 / 102.8 dB / 112.2

40Hz 110.1 / 108.3 dB / 114.1

50Hz 110.5 / 108.9 dB / 114.6

63Hz 111.5 / 109.2 dB / 114.5


It looks to me like a Monolith 15s is a small improvement over a PB-2000 and a huge improvement over a SB-2000.

Better in the mid-bass than either and comparable (slightly better) in the deep bass to the PB-2000.

Thanks Megaflop for the quick response, but isn't that 2nd link (for the monoprice 15) actually the ported Monoprice 15, and not the sealed M15-S? I don't believe audioholics has done a full review of the sealed line yet, just a preview article on it without the CEA-2010 measurements.

System: LG OLED65C8PUA, Onkyo TX-RZ830, Monoprice Monolith 7x200
Speakers: 7.2 config: Polk 2xLSIM707, LSIM706c, 2xLSIM702f/x, 2xLSIM703, 2xMonoprice M15-S
Devices: Nvidia Shield TV 2019, Microsoft Xbox One X, LG UBK90 UHD, Win7 MediaCenter HTPC, HD Homerun Prime Network Tuner
djjaeger is offline  
post #1574 of 1750 Old 03-10-2020, 01:10 PM
Senior Member
 
MegaFlop's Avatar
 
Join Date: Aug 2002
Location: Pasco, WA
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 53 Post(s)
Liked: 109
Quote:
Originally Posted by djjaeger View Post
Thanks Megaflop for the quick response, but isn't that 2nd link (for the monoprice 15) actually the ported Monoprice 15, and not the sealed M15-S? I don't believe audioholics has done a full review of the sealed line yet, just a preview article on it without the CEA-2010 measurements.

It is, but they performed measurements with three configurations of the Monolith 15. 3 vents open, two vents open, and all vents closed (sealed). I would expect the M15s to behave similarly to the Monolith 15 with all the vents plugged, those were the output numbers I listed. You are right that a actual M15s hasn't been tested yet. It could have a small variation particularly in the deep bass where the Monolith 15 has a larger cabinet then a 15s.
MegaFlop is offline  
post #1575 of 1750 Old 03-10-2020, 01:16 PM
Member
 
djjaeger's Avatar
 
Join Date: Sep 2006
Posts: 110
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 49 Post(s)
Liked: 23
Quote:
Originally Posted by MegaFlop View Post
It is, but they performed measurements with three configurations of the Monolith 15. 3 vents open, two vents open, and all vents closed (sealed). I would expect the M15s to behave similarly to the Monolith 15 with all the vents plugged, those were the output numbers I listed. You are right that a actual M15s hasn't been tested yet. It could have a small variation particularly in the deep bass where the Monolith 15 has a larger cabinet then a 15s.
Ahh ok sorry missed that they had all 3 columns there. Thanks again, very helpful. In for 2 M15-S for <$1600. Ridiculous bass for a ridiculous price!! :-) The SVS's are going back =P

System: LG OLED65C8PUA, Onkyo TX-RZ830, Monoprice Monolith 7x200
Speakers: 7.2 config: Polk 2xLSIM707, LSIM706c, 2xLSIM702f/x, 2xLSIM703, 2xMonoprice M15-S
Devices: Nvidia Shield TV 2019, Microsoft Xbox One X, LG UBK90 UHD, Win7 MediaCenter HTPC, HD Homerun Prime Network Tuner
djjaeger is offline  
post #1576 of 1750 Old 03-10-2020, 01:20 PM
Senior Member
 
MegaFlop's Avatar
 
Join Date: Aug 2002
Location: Pasco, WA
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 53 Post(s)
Liked: 109
Quote:
Originally Posted by djjaeger View Post
Ahh ok sorry missed that they had all 3 columns there. Thanks again, very helpful. In for 2 M15-S for <$1600. Ridiculous bass for a ridiculous price!! :-) The SVS's are going back =P

Yeah you should be happy. It looks like two M15s should be roughly equivalent to 4 SB-2000s
MegaFlop is offline  
post #1577 of 1750 Old 03-11-2020, 12:41 PM
Member
 
darthwhit's Avatar
 
Join Date: Feb 2004
Posts: 97
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Liked: 14
I know that typically the ported would be more frequently recommended but with the current sale what would be better.

M12-S THX for $488.58
10" THX ported for $499.99
10" THX ported open box $429.99

Or look at something cheaper like Bic Acoustech PL-200 II $299
Or should I look at something else like a Rythmic LV12F $599
Or save for something bigger.

4284 cubic foot space. 36'x14'x8.5' Larger space but the home theater is just in one half. The include pictures are older but hopefully show the space at least.

Currently running a Polk Audio HTS SUB 12 and will continue to run it. I have everything to build a LilMike F20 but I've had the wood and driver for over five years and haven't built it yet. Two kids under the age of four have limited what I accomplish.

I appreciate any advice.
Attached Thumbnails
Click image for larger version

Name:	IMG_20181024_063304.jpg
Views:	77
Size:	1.27 MB
ID:	2696470   Click image for larger version

Name:	IMG_20181024_063207.jpg
Views:	53
Size:	1.27 MB
ID:	2696472   Click image for larger version

Name:	IMG_20181119_061608.jpg
Views:	55
Size:	1.02 MB
ID:	2696474  
darthwhit is offline  
post #1578 of 1750 Old 03-11-2020, 02:09 PM
Senior Member
 
MegaFlop's Avatar
 
Join Date: Aug 2002
Location: Pasco, WA
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 53 Post(s)
Liked: 109
Quote:
Originally Posted by darthwhit View Post
I know that typically the ported would be more frequently recommended but with the current sale what would be better.

M12-S THX for $488.58
10" THX ported for $499.99
10" THX ported open box $429.99

Or look at something cheaper like Bic Acoustech PL-200 II $299
Or should I look at something else like a Rythmic LV12F $599
Or save for something bigger.

4284 cubic foot space. 36'x14'x8.5' Larger space but the home theater is just in one half. The include pictures are older but hopefully show the space at least.

Currently running a Polk Audio HTS SUB 12 and will continue to run it. I have everything to build a LilMike F20 but I've had the wood and driver for over five years and haven't built it yet. Two kids under the age of four have limited what I accomplish.

I appreciate any advice.

I assume the basement is on a slab floor? You have a lot of space to fill up for your budget. I would give up on the ultra deep ~20hz bass and get something with more output in the 30-80hz range.



Possibly the Klipsch R115-SW for $699 on Amazon (probably can find it cheaper). A higher tuned 15" sub should be able to get the job done. Otherwise I would go with two of the M12s. I think the M10 is a great sub but it isn't what I would pick for your space.
MegaFlop is offline  
post #1579 of 1750 Old 03-12-2020, 09:50 AM
Member
 
darthwhit's Avatar
 
Join Date: Feb 2004
Posts: 97
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Liked: 14
The sale just ended so I will pass on the monolith for now or wait for another sale. Looking at what 15" options exist including the sealed monolith that's on sale for $1000. I was ready to by the 12" sealed to until the price went back up.

And yes it is a slab basement floor. Will be keeping my eye out for craigslist, offerup, and facebook marketplace.
darthwhit is offline  
post #1580 of 1750 Old 03-21-2020, 12:01 PM
Advanced Member
 
bad1550's Avatar
 
Join Date: May 2003
Posts: 606
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Liked: 51
I have the Denon 4300x receiver. Not sure which setting under Audio to select for the subwoofer. See picture. I'm running dual subs 15" Powered Subwoofers
Attachments
Attached Thumbnails
Click image for larger version

Name:	IMG_20200321_122825_1584817258870.jpg
Views:	63
Size:	1.12 MB
ID:	2700316  
bad1550 is offline  
post #1581 of 1750 Old 03-21-2020, 02:14 PM
Advanced Member
 
Spewdom's Avatar
 
Join Date: May 2009
Posts: 651
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 374 Post(s)
Liked: 307
Quote:
Originally Posted by bad1550 View Post
I have the Denon 4300x receiver. Not sure which setting under Audio to select for the subwoofer. See picture. I'm running dual subs 15" Powered Subwoofers
Attachments
+8dB is running the subs very hot. I would leave Subwoofer Level Adjust off for most uses. I have Sub Level Adjust on my Denon 4400 at +3dB when listening to metal so the kick drums hit a little harder and I turn it back off after. You want your subs in the negative range. Go into the Speakers>Manual Setup>Levels>Test Tone to see where your sub trims are at (hopefully that is the same order on the 4300). Mine are -5dB. Also need to know what Audyssey placed the sub trim at after calibration. Mine was around -9dB before I increased it to -5.

I would also turn Dynamic EQ off and on to see which you prefer.

Last edited by Spewdom; 03-21-2020 at 02:18 PM.
Spewdom is offline  
post #1582 of 1750 Old 03-21-2020, 02:53 PM
Advanced Member
 
bad1550's Avatar
 
Join Date: May 2003
Posts: 606
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Liked: 51
Quote:
Originally Posted by Spewdom View Post
Quote:
Originally Posted by bad1550 View Post
I have the Denon 4300x receiver. Not sure which setting under Audio to select for the subwoofer. See picture. I'm running dual subs 15" Powered Subwoofers
Attachments
+8dB is running the subs very hot. I would leave Subwoofer Level Adjust off for most uses. I have Sub Level Adjust on my Denon 4400 at +3dB when listening to metal so the kick drums hit a little harder and I turn it back off after. You want your subs in the negative range. Go into the Speakers>Manual Setup>Levels>Test Tone to see where your sub trims are at (hopefully that is the same order on the 4300). Mine are -5dB. Also need to know what Audyssey placed the sub trim at after calibration. Mine was around -9dB before I increased it to -5.

I would also turn Dynamic EQ off and on to see which you prefer.
Thank you for this helpful information
bad1550 is offline  
post #1583 of 1750 Old 03-22-2020, 05:59 AM
Senior Member
 
Swoosh830's Avatar
 
Join Date: Dec 2009
Posts: 258
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 174 Post(s)
Liked: 39
Quote:
Originally Posted by Spewdom View Post
+8dB is running the subs very hot. I would leave Subwoofer Level Adjust off for most uses. I have Sub Level Adjust on my Denon 4400 at +3dB when listening to metal so the kick drums hit a little harder and I turn it back off after. You want your subs in the negative range. Go into the Speakers>Manual Setup>Levels>Test Tone to see where your sub trims are at (hopefully that is the same order on the 4300). Mine are -5dB. Also need to know what Audyssey placed the sub trim at after calibration. Mine was around -9dB before I increased it to -5.

I would also turn Dynamic EQ off and on to see which you prefer.
Assuming you increased your sub trim by 4dB, do you also use DEQ? If so, do you adjust the RLO at all?

I have my two subs gain matched and then increased both by 2dB for a resulting trim of -5.5dB. I still have DEQ on (RLO of 0 for movies, 10 for TV), but with that, I don't know how much more the subs are being boosted by DEQ at a given volume.
Swoosh830 is online now  
post #1584 of 1750 Old 03-22-2020, 07:25 AM
Advanced Member
 
Spewdom's Avatar
 
Join Date: May 2009
Posts: 651
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 374 Post(s)
Liked: 307
Quote:
Originally Posted by Swoosh830 View Post
Quote:
Originally Posted by Spewdom View Post
+8dB is running the subs very hot. I would leave Subwoofer Level Adjust off for most uses. I have Sub Level Adjust on my Denon 4400 at +3dB when listening to metal so the kick drums hit a little harder and I turn it back off after. You want your subs in the negative range. Go into the Speakers>Manual Setup>Levels>Test Tone to see where your sub trims are at (hopefully that is the same order on the 4300). Mine are -5dB. Also need to know what Audyssey placed the sub trim at after calibration. Mine was around -9dB before I increased it to -5.

I would also turn Dynamic EQ off and on to see which you prefer.
Assuming you increased your sub trim by 4dB, do you also use DEQ? If so, do you adjust the RLO at all?

I have my two subs gain matched and then increased both by 2dB for a resulting trim of -5.5dB. I still have DEQ on (RLO of 0 for movies, 10 for TV), but with that, I don't know how much more the subs are being boosted by DEQ at a given volume.
I usually leave DEQ on with RLO at the default 0dB. I watch a lot of content and play games around -20dB MV so I like DEQ on for more bass impact. I currently find myself watching movies around -14dB MV and would normally turn DEQ off for what seemed to be cleaner bass, but watching a couple new movies last night (Jumanji: The Next Level and Spies in Disguise) I left DEQ on and it sounded great and the bass was clean. I'll probably just leave DEQ on at all times. Movie scenes with really hot bass sections do sound better overall with DEQ off when turning the volume up. So if you play movies at loud volumes, I'd probably turn DEQ off. Unless you like the sound.

I also set Audyssey MultEQ XT32 to Reference and set Cinema EQ to on in the Surround Parameter to soften the treble range.
Swoosh830 likes this.
Spewdom is offline  
post #1585 of 1750 Old 03-22-2020, 07:44 AM
Newbie
 
Join Date: Sep 2018
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked: 1
Quote:
Originally Posted by darthwhit View Post
The sale just ended so I will pass on the monolith for now or wait for another sale. Looking at what 15" options exist including the sealed monolith that's on sale for $1000. I was ready to by the 12" sealed to until the price went back up.

And yes it is a slab basement floor. Will be keeping my eye out for craigslist, offerup, and facebook marketplace.
I am surprised Facebook Marketplace has so many good listings.
mdm169911 is offline  
post #1586 of 1750 Old 03-22-2020, 09:06 AM
Member
 
darthwhit's Avatar
 
Join Date: Feb 2004
Posts: 97
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Liked: 14
Quote:
Originally Posted by mdm169911 View Post
I am surprised Facebook Marketplace has so many good listings.
Depends on where you are. I don't have many good ones here. Not presently at least. I'd like to pull the trigger on the VTF-15H MK2. It's only $50 more but then another $75 extra to ship it. Would really like to keep this under $1000.
darthwhit is offline  
post #1587 of 1750 Old 03-24-2020, 10:46 PM
Member
 
Join Date: May 2017
Posts: 192
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 149 Post(s)
Liked: 13
ordered a monolith thx 15- sealer version. I didn’t know that a sealed version existed and I thought the sale was for the ported version. So I have been comparing spl vs freq graphs from the ported and sealed version as well as for the pb 4000. I saw a youtube video that favorably compared the monolith 15 ported against the pb4000 so at that point decided to order because of the sale.

I don’t see a whole lot of difference in the graphs seems like the sealed version is comparable but the testing conditions for the avs forum ( which i assume aren’t as biased as the graphs on monolith website)

are under different test conditions so i don’t really have reliable comparative numbers.

any thoughts? Should I return and wait for the ported version to go on sale. The sub comes in tomorrow but I won’t be able to compare with the ported version anyhow
klipsch123 is offline  
post #1588 of 1750 Old 03-25-2020, 05:47 AM
Advanced Member
 
Spewdom's Avatar
 
Join Date: May 2009
Posts: 651
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 374 Post(s)
Liked: 307
Quote:
Originally Posted by klipsch123 View Post
ordered a monolith thx 15- sealer version. I didn’t know that a sealed version existed and I thought the sale was for the ported version. So I have been comparing spl vs freq graphs from the ported and sealed version as well as for the pb 4000. I saw a youtube video that favorably compared the monolith 15 ported against the pb4000 so at that point decided to order because of the sale.

I don’t see a whole lot of difference in the graphs seems like the sealed version is comparable but the testing conditions for the avs forum ( which i assume aren’t as biased as the graphs on monolith website)

are under different test conditions so i don’t really have reliable comparative numbers.

any thoughts? Should I return and wait for the ported version to go on sale. The sub comes in tomorrow but I won’t be able to compare with the ported version anyhow
The sealed and ported versions of the Monolith 15 are basically identical when sealing all 3 ports on the ported sub. When running the ported sub with all 3 ports open or only 2 open, it beats the sealed sub by a noticeable margin down low.
Spewdom is offline  
post #1589 of 1750 Old 03-25-2020, 12:06 PM
Member
 
Join Date: Dec 2017
Location: Shenandoah Valley VA
Posts: 72
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 50 Post(s)
Liked: 28
I've been trying to read back through this thread for the simple fact of aggregating reliability and customer service results with Monoprice. It's kinda funny what derails a thread (rubbery isolation feet for instance......). Are there actual Monolith (specifically 15" ported) users, thread moderators, and/or reviewers who have their thumb on the pulse with Monoprice that can speak to these two areas?

I've read dramatically detailed horror stories of amp failures, broken grills, etc requiring the entire sub to be returned but those seem to be very few versus the number items sold. I know Rythmik, HSU, etc are known for their customer service, and reliability for that matter, but these Monolith units measure remarkably well and are an attractive option.

Any thoughts would be appreciated.

Thanks.

Arcam AVR850 - Bluesound Node - Apple TV 4K - Polk Audio LSIM707 - LSiM706c - LSiM703 - 700-LS ceiling Atmos speakers x4 - Subs TBD - Sony UBP-X700 - TV TBD
tparm is offline  
post #1590 of 1750 Old 03-25-2020, 12:36 PM
AVS Forum Special Member
 
Laserfan's Avatar
 
Join Date: Apr 2000
Location: USA
Posts: 4,159
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
Liked: 192
Quote:
Originally Posted by tparm View Post
I've been trying to read back through this thread for the simple fact of aggregating reliability and customer service results with Monoprice. It's kinda funny what derails a thread (rubbery isolation feet for instance......). Are there actual Monolith (specifically 15" ported) users, thread moderators, and/or reviewers who have their thumb on the pulse with Monoprice that can speak to these two areas?

I've read dramatically detailed horror stories of amp failures, broken grills, etc requiring the entire sub to be returned but those seem to be very few versus the number items sold. I know Rythmik, HSU, etc are known for their customer service, and reliability for that matter, but these Monolith units measure remarkably well and are an attractive option.

Any thoughts would be appreciated.

Thanks.
My thought is that CS is no reason not to buy a Monoprice sub. FedEx tried to deliver one of two THX 12 subs with a damaged carton, and broken grille inside, but I rejected it on the spot and they took it back to Monoprice. Monoprice re-shipped another sub and so while that took a couple/three weeks I can't say I have any beef with how they handled it.

Not to mention that the subs themselves are freaking awesome for what I paid for them!
tparm likes this.
Laserfan is online now  
Sponsored Links
Advertisement
 
Reply Subwoofers, Bass, and Transducers

Tags
bestsubs , better than psa , monolith 12" thx ultra 500w sub , monolith 15" thx ultra 1000w sub , psa sucks

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off