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Magnepan 20.7 and Subs

I've been reading about supplementing my Magnepan 20.7s with a sub, the general preference being REL.  However in room I'm getting fairly deep bass with the 20.7's, so my sense is that I would put the crossover on the REL pretty low, probably at 30Hz, leaving only sub 30Hz material porting "also" to the sub to augment the natural deep bass of the Magnepans.  I'm just wondering since there's precious little info in the 15hz to 25hz range, do I really need a PAIR of RELs, or could I get by with just one?  And shouldn't that one be capable of going REALLY low, like the G1, or what's the point?  Any advice would be appreciated.  Thanks.
pwhinson

Showing 1 response by johnwern

johnwern
24 posts
 
It's been over a month since I got my 20.7 as a new unit. It had too much bass and treble in the beginning, and I had to use attenuator for treble and adjust the bass with equalizer. It took over a month finally to stabilize the balance, I removed the attenuator and no tone adjustment.  

Magnepan never mentioned about breaking-in period but surely it needs to do so. I thought it was defect in the beginning. But I had to get more powerful amp and it helped for tonal balance.
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