MiniDSP - Page 101 - AVS | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!


Forum Jump: 
 60Likes
 
Thread Tools
Old 04-20-2015, 05:38 AM
AVS Addicted Member
 
Stereodude's Avatar
 
Join Date: Jan 2002
Location: Detroit Metro Area
Posts: 10,991
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1192 Post(s)
Liked: 829
Quote:
Originally Posted by GizzeGutten View Post
Even the 2nd and 4th order HPF overshoots using the 96kHz plugin.
I agree, it's not a good solution for the 96kHz unit(s).

Quote:
I've done more research and @notnyt which is a user on these forums has raised the instability with PEQ filters in the lower frequencies using 4x10HD and 96kHz with miniDSP before. I noticed I got more bass when I used the filter, measured and these were my results.

According to that thread miniDSP doesn't want to solve it because they have more pressing issues (and it has now been several years). Also, their patch for the PEQ filters seems to be the Sub_EQ filter option:
My favorite thing from that thread is when the miniDSP folks said the unit couldn't pass 2Hz. It was impossible! Have they measured their own hardware?
Stereodude is online now  
Sponsored Links
Advertisement
 
Old 04-20-2015, 04:49 PM
Advanced Member
 
asarose247's Avatar
 
Join Date: Mar 2010
Location: DIY enabled in SoCal / OC
Posts: 950
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 206 Post(s)
Liked: 98
technical for a guy out of the loop, to be polite
would the minidsp be able to
handle lpf and HPF for the rotary sub discussed in this section
I suspect wrt my minimal comprehension that that might be a mini 2 x 4,
that way I could still work in the 2 Lhorns and MAX, total 4 subs
pure speculation/planning for the road ahead . .


thanks and please, KISS

DIY FAN Denon X5200 , Emotiva UPA7, for 7.3.4 ATMOS/DSU SHARP 80" LED/LCD
FL/FR: DIYSG Fusion 15's , Center: DIYSG 88 Special , SL/SR: RC3II , SRL/SRR: F-3Towers, TF & TR: SLX
2 30" BF THTLP'S , SUBMAXIMUS, 2 x Inuke6000DSP & 2 driverless LHORN cabs
http://www.avsforum.com/forum/401-di...rs-subwoofers/
www.avsforum.com/forum/155-diy-speakers-subs/1485120-submaximus-large-front-loaded-horn
asarose247 is offline  
Old 04-20-2015, 04:58 PM
AVS Special Member
 
Pain Infliction's Avatar
 
Join Date: Jun 2010
Location: Houston Texas
Posts: 3,684
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 651 Post(s)
Liked: 320
Quote:
Originally Posted by asarose247 View Post
technical for a guy out of the loop, to be polite
would the minidsp be able to
handle lpf and HPF for the rotary sub discussed in this section
I suspect wrt my minimal comprehension that that might be a mini 2 x 4,
that way I could still work in the 2 Lhorns and MAX, total 4 subs
pure speculation/planning for the road ahead . .


thanks and please, KISS
When it comes to rotary subs, I am by no means an expert, but would a HPF even be necessary?

Applying a LPF is definitely something the minidsp can handle. HPF too at 10hz roughly. Rotary subs play down to 1hz so I am not sure what can be done about this.
Pain Infliction is online now  
Old 04-20-2015, 05:18 PM
Advanced Member
 
asarose247's Avatar
 
Join Date: Mar 2010
Location: DIY enabled in SoCal / OC
Posts: 950
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 206 Post(s)
Liked: 98
yes, its obvious I wasn't thinking , HPF indeed


now wrt getting a signal for the rotary subbut i'll go back to that thread
however
i'm thinking bass synthesizer for those 3-5 to 15-18 hz tones specifically for the rotary
sounds like a visit to sweetwater is at hand . .


thanks

DIY FAN Denon X5200 , Emotiva UPA7, for 7.3.4 ATMOS/DSU SHARP 80" LED/LCD
FL/FR: DIYSG Fusion 15's , Center: DIYSG 88 Special , SL/SR: RC3II , SRL/SRR: F-3Towers, TF & TR: SLX
2 30" BF THTLP'S , SUBMAXIMUS, 2 x Inuke6000DSP & 2 driverless LHORN cabs
http://www.avsforum.com/forum/401-di...rs-subwoofers/
www.avsforum.com/forum/155-diy-speakers-subs/1485120-submaximus-large-front-loaded-horn
asarose247 is offline  
Old 04-21-2015, 10:32 AM
Member
 
Join Date: Feb 2015
Location: SA, TX
Posts: 52
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Liked: 2
I am a complete noob and was going to buy a 2Vrms unbalanced MiniDSP 2x4 (I really don't want to deal with Phoenix connectors) to go between my Denon 4520CI and a samson sx3200 that will power 2 custom subs. Is that the right product for me? I need a HPF @ 10, so other easier plug-and-play options don't seem viable. Any and all guidance is welcome.

Thanks,

John
jwebtx is online now  
Old 04-21-2015, 10:57 AM
Advanced Member
 
andyc56's Avatar
 
Join Date: Feb 2013
Location: Austin metro area
Posts: 705
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Liked: 220
Quote:
Originally Posted by jwebtx View Post
I am a complete noob and was going to buy a 2Vrms unbalanced MiniDSP 2x4 (I really don't want to deal with Phoenix connectors) to go between my Denon 4520CI and a samson sx3200 that will power 2 custom subs. Is that the right product for me? I need a HPF @ 10, so other easier plug-and-play options don't seem viable. Any and all guidance is welcome.
The Samson sx3200 has an input sensitivity of 1.24 Volts RMS. This means it takes 1.24 Volts RMS at its input to drive the output to full power. But the unbalanced miniDSP 2x4 only puts out 0.9 Volts RMS maximum, regardless of whether its input sensitivity jumper is set to 2.0 Volts RMS or 0.9 Volts RMS. So the miniDSP 2x4 unbalanced is incompatible with the Samson.
andyc56 is offline  
Old 04-21-2015, 11:05 AM
Member
 
Join Date: Feb 2015
Location: SA, TX
Posts: 52
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Liked: 2
Quote:
Originally Posted by andyc56 View Post
The Samson sx3200 has an input sensitivity of 1.24 Volts RMS. This means it takes 1.24 Volts RMS at its input to drive the output to full power. But the unbalanced miniDSP 2x4 only puts out 0.9 Volts RMS maximum, regardless of whether its input sensitivity jumper is set to 2.0 Volts RMS or 0.9 Volts RMS. So the miniDSP 2x4 unbalanced is incompatible with the Samson.
Wow, I am glad I asked. I guess the balanced is still an option? How difficult is the wiring job? I was really hoping to avoid it and can't imagine why they use them over more common plugs.
jwebtx is online now  
Old 04-21-2015, 11:10 AM
Advanced Member
 
andyc56's Avatar
 
Join Date: Feb 2013
Location: Austin metro area
Posts: 705
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Liked: 220
Quote:
Originally Posted by jwebtx View Post
Wow, I am glad I asked. I guess the balanced is still an option? How difficult is the wiring job? I was really hoping to avoid it and can't imagine why they use them over more common plugs.
I have heard it's not difficult at all, but haven't tried it. I was thinking of buying one a while back and did a bunch of research on them, but ended up not buying one.
andyc56 is offline  
Old 04-21-2015, 11:43 AM
Member
 
Join Date: Feb 2015
Location: SA, TX
Posts: 52
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Liked: 2
Quote:
Originally Posted by andyc56 View Post
I have heard it's not difficult at all, but haven't tried it. I was thinking of buying one a while back and did a bunch of research on them, but ended up not buying one.
Another product you would recommend over the balanced 2x4 that can HPF @ 10?
jwebtx is online now  
Old 04-21-2015, 11:58 AM
The Truth Hz
 
beastaudio's Avatar
 
Join Date: Dec 2010
Location: Western NC
Posts: 9,025
Mentioned: 84 Post(s)
Tagged: 0 Thread(s)
Quoted: 1535 Post(s)
Liked: 1273
Quote:
Originally Posted by jwebtx View Post
Another product you would recommend over the balanced 2x4 that can HPF @ 10?
The open DRC-AN uses XLR inputs and outputs. If you only need 2x2 I/O, then it should work just fine for you

(European models do not accept banana plugs.)

 

"If you done it, it ain't bragging." ~ Walt Whitman

 

AE TD12x SEOS12 Build

Beast's DIY Master Measurement Thread

DIY Emminence Coaxial Surround Thread

beastaudio is online now  
Old 04-21-2015, 12:36 PM
Member
 
Join Date: Feb 2015
Location: SA, TX
Posts: 52
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Liked: 2
Quote:
Originally Posted by beastaudio View Post
The open DRC-AN uses XLR inputs and outputs. If you only need 2x2 I/O, then it should work just fine for you
Thank you. $220 more, but I think that is the route i'm going to take.
jwebtx is online now  
Old 04-21-2015, 04:27 PM
AVS Special Member
 
Pain Infliction's Avatar
 
Join Date: Jun 2010
Location: Houston Texas
Posts: 3,684
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 651 Post(s)
Liked: 320
Quote:
Originally Posted by jwebtx View Post
Wow, I am glad I asked. I guess the balanced is still an option? How difficult is the wiring job? I was really hoping to avoid it and can't imagine why they use them over more common plugs.
Wiring is easy or you can buy pheonix to xlr cables pre made if you want. B&H Photo sells them and I am sure other places do too.

Quote:
Originally Posted by andyc56 View Post
I have heard it's not difficult at all, but haven't tried it. I was thinking of buying one a while back and did a bunch of research on them, but ended up not buying one.
Correct. It's easy enough.


Quote:
Originally Posted by beastaudio View Post
The open DRC-AN uses XLR inputs and outputs. If you only need 2x2 I/O, then it should work just fine for you
Or you can go this way. I like this option too, and if you don't mind spending the extra money, go for it. You can set higher delays than the balanced version and it can handle more input voltage as well.
Pain Infliction is online now  
Old 04-21-2015, 08:17 PM
AVS Special Member
 
DS-21's Avatar
 
Join Date: Jun 2005
Posts: 3,910
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 482 Post(s)
Liked: 306
Quote:
Originally Posted by jwebtx View Post
Wow, I am glad I asked. I guess the balanced is still an option? How difficult is the wiring job? I was really hoping to avoid it and can't imagine why they use them over more common plugs.
http://seriousaudioblog.blogspot.com...s-for-2x4.html

They use them because they're smaller. (I like them better, actually, because you can use them with bare wire cut to size instead of needing to add a connector.)

--
"In many cases there aren’t two sides unless one side is 'reality' and the other is 'nonsense.'" - Phil Plait
Serious Audio Blog 
DS-21 is offline  
Old 04-21-2015, 09:21 PM
AVS Special Member
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 9,581
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 2468 Post(s)
Liked: 1245
Quote:
Originally Posted by DS-21 View Post
http://seriousaudioblog.blogspot.com...s-for-2x4.html

They use them because they're smaller. (I like them better, actually, because you can use them with bare wire cut to size instead of needing to add a connector.)
That link doesn't seem to work.

As for the difficulty of the wiring, I recently connected the DDRC-88A and a balanced 2x4 using the Phoenix connectors. I purchased XLR cables, cut them in half, and learned how to use heat shrink. It really isn't that hard. I recommend the bare wire approach rather than the XLR-to-Phoenix converters because with the converters you end up with a bundle of bulky and heavy XLR connectors on the back of your equipment. The bare wires are nice and clean.
AustinJerry is online now  
Old 04-21-2015, 09:28 PM
AVS Special Member
 
DS-21's Avatar
 
Join Date: Jun 2005
Posts: 3,910
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 482 Post(s)
Liked: 306
Quote:
Originally Posted by AustinJerry View Post
That link doesn't seem to work.
Worked for me both on my Mac and my iPhone.

Does it work for you set up like this?

--
"In many cases there aren’t two sides unless one side is 'reality' and the other is 'nonsense.'" - Phil Plait
Serious Audio Blog 
DS-21 is offline  
Old 04-21-2015, 09:33 PM
Advanced Member
 
andyc56's Avatar
 
Join Date: Feb 2013
Location: Austin metro area
Posts: 705
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Liked: 220
Quote:
Originally Posted by DS-21 View Post
Worked for me both on my Mac and my iPhone.

Does it work for you set up like this?
Working fine here, as did the link from the original post.
andyc56 is offline  
Old 04-21-2015, 09:34 PM
AVS Special Member
 
AustinJerry's Avatar
 
Join Date: Jan 2003
Location: Austin, Texas
Posts: 9,581
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 2468 Post(s)
Liked: 1245
Quote:
Originally Posted by DS-21 View Post
Worked for me both on my Mac and my iPhone.

Does it work for you set up like this?
After trying it again, the first link worked. Interesting read. I am lucky because my pre-pro, power amp and subs all have balanced connections. All I needed to do was develop my Phoenix connector skills, which turned out to be kind of fun.
AustinJerry is online now  
Old 04-22-2015, 07:10 AM
AVS Special Member
 
DS-21's Avatar
 
Join Date: Jun 2005
Posts: 3,910
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 482 Post(s)
Liked: 306
Quote:
Originally Posted by AustinJerry View Post
After trying it again, the first link worked. Interesting read. I am lucky because my pre-pro, power amp and subs all have balanced connections. All I needed to do was develop my Phoenix connector skills, which turned out to be kind of fun.
Definitely basic stuff for someone who's played with Phoenix connectors already, but I wrote that (wow, almost three years ago now; need to update it with better pics) because there was a lot of confusion about something that's really not an issue for anyone who can handle a screwdriver without drawing blood (at least 75% of the time)!

--
"In many cases there aren’t two sides unless one side is 'reality' and the other is 'nonsense.'" - Phil Plait
Serious Audio Blog 
DS-21 is offline  
Old 04-22-2015, 08:20 AM
Member
 
Join Date: Feb 2015
Location: SA, TX
Posts: 52
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Liked: 2
Quote:
Originally Posted by DS-21 View Post
http://seriousaudioblog.blogspot.com...s-for-2x4.html

They use them because they're smaller. (I like them better, actually, because you can use them with bare wire cut to size instead of needing to add a connector.)
After further consideration, I think a balanced 2x4 with pre-made B&H cables might be best for me (and cheapest too). I'll digest the link some more before deciding, but I really love the ease of plug-and-play. I know i'm going to need significant time to actually learn how to use REW and the miniDSP.
jwebtx is online now  
Old Today, 10:43 AM
AVS Club Gold
 
AV Science Sales 5's Avatar
 
Join Date: Sep 2011
Location: A beautiful view of a lake
Posts: 9,906
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 1501 Post(s)
Liked: 803
AV Science is now a MIniDSP dealer and will be stocking many of their items.

Mike Garrett, AV Science Sales Call Me: 585-671-2968
Email Me: Mike@AVScience.com
Brands we sell: http://avscience.com/brands/ 
Call for B-stock projectors
Sony, JVC, Stewart, Seymour, SE, SI, Falcon, DNP & more.
RBH, Martin Logan, Triad, Atlantic Tech., MK Sound, SVS & Def Tech, Denon, Pioneer, Marantz & Yamaha .
AV Science Sales 5 is online now  
Old Today, 11:03 AM
Member
 
dryeye's Avatar
 
Join Date: Nov 2007
Posts: 170
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 25
Great news Mike. Would the DDRC-88A be one of those items?
dryeye is online now  
Sponsored Links
Advertisement
 
 
Thread Tools


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