Official Rythmik Audio Subwoofer thread - Page 1207 - AVS Forum | Home Theater Discussions And Reviews
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post #36181 of 40617 Old 11-27-2018, 01:48 PM
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Originally Posted by kdaq View Post
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Originally Posted by PlasmaPZ80U View Post
At some point I might try putting something absorbent under the sub to isolate it from the floor. My house has creaky floorboards, especially in the corner the sub is.
I had two experiences recently where isolation under the sub made a very significant difference.


First, I sold my LV12R to a friend, who put it in his concrete basement. He set it on top of a foam mat. I was amazed how clean it sounded -- better to my ear than it sounded in my basement when I set it directly on carpet in a corner.


Second, I have an F18 that was really rattling baseboards quite badly when I set it directly on my carpet. After a few days I pulled the sub out, attached its rubber feet, and put it back in the same corner. The difference was stunning! Without things resonating nearly so badly, the bass is just incredibly clean.
Good to know, thanks

What kind of foam mat would be cheap and effective? Basically, cheap alternative to something like the subdude.

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post #36182 of 40617 Old 11-27-2018, 03:40 PM
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Originally Posted by kdaq View Post
I had two experiences recently where isolation under the sub made a very significant difference.

First, I sold my LV12R to a friend, who put it in his concrete basement. He set it on top of a foam mat. I was amazed how clean it sounded -- better to my ear than it sounded in my basement when I set it directly on carpet in a corner.
But this was in two different houses, so unable to compare in this case.

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Second, I have an F18 that was really rattling baseboards quite badly when I set it directly on my carpet. After a few days I pulled the sub out, attached its rubber feet, and put it back in the same corner. The difference was stunning! Without things resonating nearly so badly, the bass is just incredibly clean.
Glad it achieved your goal. It's funny how some people will chase that effect while others try to eliminate it.

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post #36183 of 40617 Old 11-27-2018, 03:41 PM
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Good to know, thanks

What kind of foam mat would be cheap and effective? Basically, cheap alternative to something like the subdude.
I put my desktop speakers on these: https://smile.amazon.com/gp/product/B00NFZ5G2O/

It's a strong foam.

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post #36184 of 40617 Old 11-27-2018, 04:52 PM
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I've seen this recommended in other threads: https://www.amazon.com/Auralex-Acous...dp/B00DI5AXNI/. Almost got some but decided to try rubber feet first.

Edit: Oops sorry, just noticed you said you want something cheaper than the subdude. My friend was using something like this: https://www.amazon.com/TG-Interlocki...dp/B0050P218E/ simply because it was already handy down in his workshop.

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post #36185 of 40617 Old 11-27-2018, 10:04 PM
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Hello, I have 2 FV18 hooked up to a Denon 4400 receiver with Audyssey for two subs. The subs are equidistant from the MLP on the front wall and placed on their sides.

A while back I seem to remember that the general recommendation was to time-align subs externally (e.g. MiniDSP, but my subs are equidistant anyway) and configure Audyssey to treat them as just one sub.

What is the recommendation from Rythmik these days: would I be better off running the subs as one unit through Audyssey, or having Audyssey EQ both subs individually and letting it combine the responses?

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post #36186 of 40617 Old 11-28-2018, 12:04 AM
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Hello, I have 2 FV18 hooked up to a Denon 4400 receiver with Audyssey for two subs. The subs are equidistant from the MLP on the front wall and placed on their sides.

A while back I seem to remember that the general recommendation was to time-align subs externally (e.g. MiniDSP, but my subs are equidistant anyway) and configure Audyssey to treat them as just one sub.

What is the recommendation from Rythmik these days: would I be better off running the subs as one unit through Audyssey, or having Audyssey EQ both subs individually and letting it combine the responses?
With Audyssey XT32 + Sub EQ, you don't need any additional steps or hardware. Connecting each Rythmik to its own sub out (the AVR has two), Audyssey will do the rest automatically.

Just be sure to give it the best sub placement you can before you begin, and set both phase/delay knobs to zero.
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post #36187 of 40617 Old 11-28-2018, 07:03 AM
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well I think I finally got my system dialed in....only took me like 2 years...


no sound treatments or traps....just big open room.


audysseyxt32 subs unsmoothed in gold, 1/6 smooth for front left/right with subs.
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Power: Marantz sr7008, NAD C 275Bee x 2, Video: Oppo 103, Samsung 75un6300
Speakers: Focal aria 948, Focal cc900, Klipsch synergy KSF 10.5, Magnepan LRS
Subs: Rythmik FV25HP, Rythmik FV15HP
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post #36188 of 40617 Old 11-28-2018, 10:12 AM
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Quote:
Originally Posted by midblue View Post
Hello, I have 2 FV18 hooked up to a Denon 4400 receiver with Audyssey for two subs. The subs are equidistant from the MLP on the front wall and placed on their sides.

A while back I seem to remember that the general recommendation was to time-align subs externally (e.g. MiniDSP, but my subs are equidistant anyway) and configure Audyssey to treat them as just one sub.

What is the recommendation from Rythmik these days: would I be better off running the subs as one unit through Audyssey, or having Audyssey EQ both subs individually and letting it combine the responses?


A recommendation from Mark Seaton was that if you have subs equidistant from MLP then using a Y cable and showing Audyssey one sub can result in lower chances of Audyssey screwing up. In my case I got a better response with showing them as one sub. You can rey both ways and measure suing REW and go with the one that shows a better response and/or sounds better.


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Subwoofers: Dual Rythmik FV18s Rev2 with Paper cone, BOSS Platform mini riser, 2 BK LFE
Speakers: PSA MTM-210 L/C/R - Klipsch 250S Surrounds, PSA MT 110sr Rear Surrounds, 4 x SVS Prime Elevation for Atmos
Video: Epson PowerLite Home Cinema 6500 UB; Room: 2100 cuft sealed on suspended floor
Receiver & Players: Denon X4400H, Oppo UDP-203, Roku Ultra. Apple TV, Minidsp 2X4 HD
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post #36189 of 40617 Old 11-28-2018, 11:42 AM
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2F15 HP and a F15

Hi Enrico, others

I have two Rythmik F15 HPs and one Older F15 subs in a 23*13*9 ft room. I can have the F15HPs towards the mid of side walls but not equidistant from the front wall. The right one is going to be a feet closer to the front wall than the left one. The one F15 is going to be right next to the couch.

I just got a CSL umik1 and MiniDSP 2*4 HD.

I have a marantz 7008 which has two sub preouts and. Sub EQ.

May I know if I have to

1. connect the two f15 HPs to 1 and 2 outs on MiniDSP, with input 1 on MiniDSP connecting to sub out 1 on the receiver

2. sub out 2 on AVR connecting to input 2 on MiniDSP and the rear f15 sub going to out 3 on MiniDSP?

Never did the REW or MiniDSP calibration, so any help is appreciated.

Thanks
Ron
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post #36190 of 40617 Old 11-28-2018, 11:45 AM
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Hi Enrico, others


Never did the REW or MiniDSP calibration, so any help is appreciated.

Thanks
Ron

I recommend you learn rew before tackling the minidsp...for me the minidsp is very complex. so complex I cant even figure it out.

Power: Marantz sr7008, NAD C 275Bee x 2, Video: Oppo 103, Samsung 75un6300
Speakers: Focal aria 948, Focal cc900, Klipsch synergy KSF 10.5, Magnepan LRS
Subs: Rythmik FV25HP, Rythmik FV15HP
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post #36191 of 40617 Old 11-28-2018, 11:52 AM
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I recommend you learn rew before tackling the minidsp...for me the minidsp is very complex. so complex I cant even figure it out.
I was looking into my next opportunity for sound improvements, and REW/Umik-1 and or sub(s) minidsp seemed a good next step... Were you able to get noticeable improvements tweaking with REW only? And then roughly, what do you find difficult abut the minidp for subs? Thanks!

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post #36192 of 40617 Old 11-28-2018, 11:57 AM
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I was looking into my next opportunity for sound improvements, and REW/Umik-1 and or sub(s) minidsp seemed a good next step... Were you able to get noticeable improvements tweaking with REW only? And then roughly, what do you find difficult abut the minidp for subs? Thanks!

rew is very powerful tool...i watched some youtube videos on its abilities by one of the engineers giving lecture on it at axpona.


minidsp I got it registered and installed on my laptop then gave up...I never got past the setup on my laptop...ofc I have ptsd and bunch of other issues so frustration isnt good for me...

Power: Marantz sr7008, NAD C 275Bee x 2, Video: Oppo 103, Samsung 75un6300
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post #36193 of 40617 Old 11-28-2018, 12:04 PM
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rew is very powerful tool...i watched some youtube videos on its abilities by one of the engineers giving lecture on it at axpona.


minidsp I got it registered and installed on my laptop then gave up...I never got past the setup on my laptop...ofc I have ptsd and bunch of other issues so frustration isnt good for me...
Thanks. Regarding the other stuff I understand your troubles as I myself had the USMC lifestyle for about 5 years. Hope the VA is taking care of you.
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post #36194 of 40617 Old 11-28-2018, 12:54 PM
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Originally Posted by rsmt2000 View Post
Hi Enrico, others

I have two Rythmik F15 HPs and one Older F15 subs in a 23*13*9 ft room. I can have the F15HPs towards the mid of side walls but not equidistant from the front wall. The right one is going to be a feet closer to the front wall than the left one. The one F15 is going to be right next to the couch.

I just got a CSL umik1 and MiniDSP 2*4 HD.

I have a marantz 7008 which has two sub preouts and. Sub EQ.

May I know if I have to

1. connect the two f15 HPs to 1 and 2 outs on MiniDSP, with input 1 on MiniDSP connecting to sub out 1 on the receiver

2. sub out 2 on AVR connecting to input 2 on MiniDSP and the rear f15 sub going to out 3 on MiniDSP?

Never did the REW or MiniDSP calibration, so any help is appreciated.

Thanks
Ron
REW and miniDSP have their own learning curves but you should also check out this thread: https://www.avsforum.com/forum/113-s...optimizer.html

Andy has a nifty program to tackle multiple subs and generate the files for you.

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post #36195 of 40617 Old 11-30-2018, 08:54 AM
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I had a very fun night last night with @imureh and @toddct at Ray's house fine tuning the FV18s. It amazes me every time I work with the miniDSP and its ability to fix peaks and nulls. It's a great tool to flat response, even with nasty nulls like the one we had in Ray's room.

Here is the room response after time align the subwoofers with the miniDSP. No Audyssey, no miniDSP:



Here is with miniDSP only after EQ and using 7 x PEQ filters out of 10 PEQ filters available:



Here is after Audyssey 8 points calibration + miniDSP. The whole idea is to present the flatter response you can get with the miniDSP so Auddysey focus only on flatting the response and not on fixing big peaks and nulls:



Here are the three for comparison:



I can't get tired of recommending the miniDSP 2x4 HD. I think it's one of the most powerful tools available for home theater audio and something that any serious home theater aficionado must have.
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Enrico Castagnetti @ Rythmik Audio - Dialing In Rythmik Audio Subwoofers - REW for macOS
Media Room: Sierra Towers w/RAAL, Horizon w/RAAL, Sierra 2s & Lunas | Rythmik F12SE(x2) + FV25HP | Denon X6500H | Panny 820 + ATV 4K | Bluesound Node 2 | Sony 77A9G OLED |
Desktop: Dynaudio BM5 mkIII | Rythmik L22 | Apogee Quartet | 27" iMac| Bedroom: B&W 685 S2 | Rythmik LVX12 | Marantz SR6013 | Sony X700 + ATV 4K | Sony XBR-65Z9D |
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post #36196 of 40617 Old 11-30-2018, 09:15 AM
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I can't get tired of recommending the miniDSP 2x4 HD. I think it's one of the most powerful tools available for home theater audio and something that any serious home theater aficionado must have.

so when you visiting Albuquerque?

Power: Marantz sr7008, NAD C 275Bee x 2, Video: Oppo 103, Samsung 75un6300
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post #36197 of 40617 Old 11-30-2018, 10:21 AM
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Here is after Audyssey 8 points calibration + miniDSP. The whole idea is to present the flatter response you can get with the miniDSP so Auddysey focus only on flatting the response and not on fixing big peaks and nulls:

That is amazing for an in-room measurement.
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post #36198 of 40617 Old 11-30-2018, 10:57 AM
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First off that's awesome work right there Enrico!
Ray, you must be really happy with your setup right now!

But I'm curious if you plan to do a small house curve at the low end? I don't know anything about minidsp but it was mentioned that 7 of 10 filters were used, so would that mean you have 3 left to use for a house curve? Sorry if it's a dumb question but I haven't gone down the minidsp route yet, but I plan to!
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post #36199 of 40617 Old 11-30-2018, 11:00 AM
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First off that's awesome work right there Enrico!

Ray, you must be really happy with your setup right now!



But I'm curious if you plan to do a small house curve at the low end? I don't know anything about minidsp but it was mentioned that 7 of 10 filters were used, so would that mean you have 3 left to use for a house curve? Sorry if it's a dumb question but I haven't gone down the minidsp route yet, but I plan to!


Hey Geo, with my use of BEQ filters I really don’t see a need for it plus I get 115db at 10hz already so I think I am in a good place to begin with.


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Subwoofers: Dual Rythmik FV18s Rev2 with Paper cone, BOSS Platform mini riser, 2 BK LFE
Speakers: PSA MTM-210 L/C/R - Klipsch 250S Surrounds, PSA MT 110sr Rear Surrounds, 4 x SVS Prime Elevation for Atmos
Video: Epson PowerLite Home Cinema 6500 UB; Room: 2100 cuft sealed on suspended floor
Receiver & Players: Denon X4400H, Oppo UDP-203, Roku Ultra. Apple TV, Minidsp 2X4 HD
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post #36200 of 40617 Old 11-30-2018, 11:36 AM
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That is ruler flat from 10-100ish Hz. With movies beq, this must sound crazy good . Amazing work, Enrico. I guess the FV25 is not there yet
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post #36201 of 40617 Old 11-30-2018, 11:38 AM
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That is ruler flat from 10-100ish Hz. With movies beq, this must sound crazy good . Amazing work, Enrico. I guess the FV25 is not there yet


Todd and I are going tomorrow to pick it up.


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Subwoofers: Dual Rythmik FV18s Rev2 with Paper cone, BOSS Platform mini riser, 2 BK LFE
Speakers: PSA MTM-210 L/C/R - Klipsch 250S Surrounds, PSA MT 110sr Rear Surrounds, 4 x SVS Prime Elevation for Atmos
Video: Epson PowerLite Home Cinema 6500 UB; Room: 2100 cuft sealed on suspended floor
Receiver & Players: Denon X4400H, Oppo UDP-203, Roku Ultra. Apple TV, Minidsp 2X4 HD
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post #36202 of 40617 Old 11-30-2018, 11:51 AM
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^^ From Austin?
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post #36203 of 40617 Old 11-30-2018, 12:11 PM
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^^ From Austin?


Yep


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Subwoofers: Dual Rythmik FV18s Rev2 with Paper cone, BOSS Platform mini riser, 2 BK LFE
Speakers: PSA MTM-210 L/C/R - Klipsch 250S Surrounds, PSA MT 110sr Rear Surrounds, 4 x SVS Prime Elevation for Atmos
Video: Epson PowerLite Home Cinema 6500 UB; Room: 2100 cuft sealed on suspended floor
Receiver & Players: Denon X4400H, Oppo UDP-203, Roku Ultra. Apple TV, Minidsp 2X4 HD
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post #36204 of 40617 Old 11-30-2018, 01:16 PM
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Todd and I are going tomorrow to pick it up.


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Im excited for ya...dont see many posting any sort of fv25hp measurements...so looking forward to see your results. my results dont say alot cause the size of open layout

Power: Marantz sr7008, NAD C 275Bee x 2, Video: Oppo 103, Samsung 75un6300
Speakers: Focal aria 948, Focal cc900, Klipsch synergy KSF 10.5, Magnepan LRS
Subs: Rythmik FV25HP, Rythmik FV15HP
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post #36205 of 40617 Old 11-30-2018, 02:03 PM
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Yeah, thanks to @imureh and @enricoclaudio , they just cost me another $200! Bad influences those 2!

All kidding aside, the miniDSP is no joke. It's a no brainer really. I liken it to having the external version of SVS's new app/system sort of. Not only can you flattened the crap out of your room response (if thats what you like) but you can run any sort of curve you want. And, it has a remote so you can raise and lower the volume of the subs without having to open up a bunch of menus. I love having gadgets that enable my laziness!

FV25 vs. 2400ulf showdown coming to a theatre near you! Well......only if you're in Houston.

Todd

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post #36206 of 40617 Old 11-30-2018, 02:35 PM
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Originally Posted by toddct View Post
Yeah, thanks to @imureh and @enricoclaudio , they just cost me another $200! Bad influences those 2!

All kidding aside, the miniDSP is no joke. It's a no brainer really. I liken it to having the external version of SVS's new app/system sort of. Not only can you flattened the crap out of your room response (if thats what you like) but you can run any sort of curve you want. And, it has a remote so you can raise and lower the volume of the subs without having to open up a bunch of menus. I love having gadgets that enable my laziness!

FV25 vs. 2400ulf showdown coming to a theatre near you! Well......only if you're in Houston.

Todd
Just so you know, if you get the miniDSP Wi-DG WiFi Bridge, there is no need for the miniDSP IR remote as the Wi-DG works with the miniDSP Control app for iOS and Android that allows you to control the miniDSP with your smartphone or voice control it with Alexa
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Enrico Castagnetti @ Rythmik Audio - Dialing In Rythmik Audio Subwoofers - REW for macOS
Media Room: Sierra Towers w/RAAL, Horizon w/RAAL, Sierra 2s & Lunas | Rythmik F12SE(x2) + FV25HP | Denon X6500H | Panny 820 + ATV 4K | Bluesound Node 2 | Sony 77A9G OLED |
Desktop: Dynaudio BM5 mkIII | Rythmik L22 | Apogee Quartet | 27" iMac| Bedroom: B&W 685 S2 | Rythmik LVX12 | Marantz SR6013 | Sony X700 + ATV 4K | Sony XBR-65Z9D |
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post #36207 of 40617 Old 11-30-2018, 03:09 PM
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After publishing Ray's measurements, a few AVS Forum members have contacted me over PM asking me about integration of 2 subwoofers with miniDSP 2x4 HD. All my knowledge about REW and miniDSP is thanks to people like @AustinJerry , @mthomas47 and few others. Theres is not too much that can be said or explained that is not covered in Austin Jerry REW and miniDSP 2x4 tutorials and in Mike's Audyssey recommendations . I know for sure that the 136 pages of Getting Started with REW and the 37 pages of Using miniDSP 2x4 guides can be overwhelming for most people but it's necessary to read those at least 3 times to get into them and of course, messing around with your system (backup everything before making any changes) until you get familiar with the terms and steeps necessaries to archive the ideal integration/calibration and results. The only thing I may be able to do is write a steep by steep condensed version (1 or 2 pages) of what we did in Ray's room. But this will assume you already read the two mentioned guides and that some steeps are already done. Now I need to figure out the time to write this

Enrico Castagnetti @ Rythmik Audio - Dialing In Rythmik Audio Subwoofers - REW for macOS
Media Room: Sierra Towers w/RAAL, Horizon w/RAAL, Sierra 2s & Lunas | Rythmik F12SE(x2) + FV25HP | Denon X6500H | Panny 820 + ATV 4K | Bluesound Node 2 | Sony 77A9G OLED |
Desktop: Dynaudio BM5 mkIII | Rythmik L22 | Apogee Quartet | 27" iMac| Bedroom: B&W 685 S2 | Rythmik LVX12 | Marantz SR6013 | Sony X700 + ATV 4K | Sony XBR-65Z9D |
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post #36208 of 40617 Old 11-30-2018, 03:16 PM
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Quote:
Originally Posted by enricoclaudio View Post
The only thing I may be able to do is write a steep by steep condensed version (1 or 2 pages) of what we did in Ray's room. But this will assume you already read the two mentioned guides and that some steeps are already done. Now I need to figure out the time to write this
That would be awesome Enrico, and very much appreciated by everyone!!!!
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post #36209 of 40617 Old 11-30-2018, 03:17 PM
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Quote:
Originally Posted by toddct View Post
Yeah, thanks to @imureh and @enricoclaudio , they just cost me another $200! Bad influences those 2!

All kidding aside, the miniDSP is no joke. It's a no brainer really. I liken it to having the external version of SVS's new app/system sort of. Not only can you flattened the crap out of your room response (if thats what you like) but you can run any sort of curve you want. And, it has a remote so you can raise and lower the volume of the subs without having to open up a bunch of menus. I love having gadgets that enable my laziness!

FV25 vs. 2400ulf showdown coming to a theatre near you! Well......only if you're in Houston.

Todd
Hell Ya!!!
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post #36210 of 40617 Old 11-30-2018, 03:24 PM
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I'm just thinking that would have been great if we had video recorded what we did yesterday in Ray's room. It took about 1 hour and 20 mins the whole calibration. I need to talk with @imureh and @toddct but we may be able to do it again and this time video record it so instead of a written guide we can have a video tutorial

Enrico Castagnetti @ Rythmik Audio - Dialing In Rythmik Audio Subwoofers - REW for macOS
Media Room: Sierra Towers w/RAAL, Horizon w/RAAL, Sierra 2s & Lunas | Rythmik F12SE(x2) + FV25HP | Denon X6500H | Panny 820 + ATV 4K | Bluesound Node 2 | Sony 77A9G OLED |
Desktop: Dynaudio BM5 mkIII | Rythmik L22 | Apogee Quartet | 27" iMac| Bedroom: B&W 685 S2 | Rythmik LVX12 | Marantz SR6013 | Sony X700 + ATV 4K | Sony XBR-65Z9D |
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