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Subwoofer matching

I was all set to pull the trigger on a pair of REL subwoofers.  These would be used with my Avangard Duo’s and Pass Labs XA 60.8 monoblocks.  My main music is Rock, Jazz and Blues.  I have been given advice by a few people now saying the 107 efficiency of the Duo’s will make it very difficult to find a matching paint odd subwoofers.  Feed back I have been given is “... it will take a powerful subwoofer to be able to match the output levels of your speakers“ and “The only REL model that may work for this application will be the 212/SE, which has a very powerful amplifier that will allow it to blend well with your speakers.”  A pair of REL 212/SE is a budget breaker for me.  I am in not position to judge if the advice is correct or not.  Does anyone have experience negating a pair of subwoofers to a highly efficient speaker?
chilli42
millercarbon's avatar
millercarbon
12,531 posts
 
How many is much more important than which ones or how expensive. In other words, regardless of your budget its better to spend it on 4 than 1. Put another way you cannot find one sub that will be as good as 4 that cost 1/4 as much each. Search Swarm or distributed bass array.

System matching with 4 is a non-issue.
shkong78's avatar
shkong78
1,477 posts
 
Recently I had great result by adding two 18 inch Scaena subwoofers to my Lansche 4.1 speaker.

You may want to contact Mark Seaton to get advice on subwoofer to add to your speaker.

https://seatonsound.net/product/f18-subwoofer/

https://www.whatsbestforum.com/threads/what-is-the-most-musical-fast-and-accurate-subwoofer-you-have-heard.21597/page-4
lak's avatar
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lak
4,593 posts
 
I'd suggest placing a phone call to REL and asking their opinion. REL customer service is very good.
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