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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

Showing 1 response by m-db

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m-db
1,025 posts
 
The sub 225 appears to be a proprietary design that includes a 300Hz crossover.
https://manualzz.com/doc/28390566/duo-fact-sheet---avantgarde-acoustic

I would think your goal would be the capability of a subwoofer that has output and control well above 300Hz and not simply high output. 
Acresverde's experience and advise seems to be the only pertinent information to your goal since this is not just any speaker system.
Suggestion from first hand experience will save you from disappointment. 
Beware and good luck with your search.
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