Dual Sub - Identical or not

Vince73

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Mar 18, 2018
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Hi guys, if I want to go with dual subs, do they have to be identical : same model and size? Could I get results in going dual with two diffent model and size subs? Thanks!!
 
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ConradNash

Member
Joined
Jun 9, 2018
Messages
26
My AV System  
Preamp, Processor or Receiver
Classe CT-SSP
Main Amp
Classe CT2300
Additional Amp
Classe CT5300
Universal / Blu-ray / CD Player
PS4
Front Speakers
B&W N802
Center Channel Speaker
B&W NHTM1
Surround Speakers
B&W 601
Surround Back Speakers
B&W 601
Subwoofers
PSA S3000i x2, PSA S3600, Velodyne DD15
Video Display Device
JVC HD750 - Calibrated
Screen
100 inch
Remote Control
Harmony Elite
They don't have to be, but you'll have an easier time integrating if they are.

If you can't go identical, or don't want to, then the next best thing is subs that are tonally the same, so different models from the same manufacturer or using the same driver.
If you can't do that (or don't want to), then stick with the same type of subs (sealed OR ported), don't mix types. You can integrated different types of sub, but it's much harder to do well.

I've mixed four subs in my room. Two of one model from one manufacturer, a different model from the same manufacturer (PSA), and a sealed sub from a different manufacturer (Velodyne). They integrate well and fairly easily.
 

PGS4038

New Member
Joined
May 22, 2019
Messages
7
My AV System  
Preamp, Processor or Receiver
Bryston BP16 with MM and DAC
Main Amp
Bryston 4BSST
Universal / Blu-ray / CD Player
CD Cambridge Audio as transport
Front Speakers
Harbeth M30
Subwoofers
2 of B&W ASW750
Other Speakers or Equipment
Bryston 10B crossover, Behringer DEQ2496
Other Equipment
Thorens TD160 ii/ AT95E /
I'm running two B&W ASW 750 subs but I've changed the amplifier in one of them recently for a Hypex FA 501 to replace the faulty ASW800.
20191118_152708.jpgSounds as good as ever!
 

Vince73

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Thread Starter
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Mar 18, 2018
Messages
7
Thank you ConradNash! Is there a thread somewhere explaining how to integrate them? Should I use REW and is there a « procedure » to do that?
 

ConradNash

Member
Joined
Jun 9, 2018
Messages
26
My AV System  
Preamp, Processor or Receiver
Classe CT-SSP
Main Amp
Classe CT2300
Additional Amp
Classe CT5300
Universal / Blu-ray / CD Player
PS4
Front Speakers
B&W N802
Center Channel Speaker
B&W NHTM1
Surround Speakers
B&W 601
Surround Back Speakers
B&W 601
Subwoofers
PSA S3000i x2, PSA S3600, Velodyne DD15
Video Display Device
JVC HD750 - Calibrated
Screen
100 inch
Remote Control
Harmony Elite
There are plenty, have a look at mine here: https://www.avnirvana.com/threads/another-multi-sub-setup.6304/
Probably a good idea to start a thread listing your current equipment (AVR, any outboard equipment like a minidsp or an antimode) and attaching some measurements (each sub alone, with a timing reference).

I'll happily try and help, but there are much brighter people than me here.
 

Vince73

New Member
Thread Starter
Joined
Mar 18, 2018
Messages
7
OK I've read your thread and some others... Lot of stuff to digest here! I'm a bit new into that. I've beeing using REW a couple times to measure my room but I'm no specialist into what to do to improve and correct etc. I've tried a couple times to go into manual settings of my AVR to play with Freq, Gain and Q but I've been unsucceful yet. I will need some help! But prior to ask for your help and start a new thread, please tell me what would YOU need as information so you won't have to ask many times! Here what I think could be usefull : AVR, speakers type, room size, accoustic treatment, REW measurements (but WHICH? : FL and FR speakers seperatly, both, with or without subs, all together???). Anything else?

And BTW : I bought 2 new subs! I did go with 2 Klipsh R-120SW. I know it's not Nirvana ;-) but for the budget, I've seen a huge diffence!!!

Thanks in advance! Looking forward to test things after your recommandations!
 
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