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Stereo Subs - Do they need to be identical?

I'm thinking of getting a couple of subwoofers to mate with my MBL 121 monitors. Generally, I've seen setups where people use two subs of the same brand and size. I'm wondering whether it can make sense to use two different sizes. For example - a Venoyne DD12 and a DD15. I'm likely going to go with Velodyne DD series or JL Audio.

In particular, I note that the big Velodyne 1812 uses an 18 inch and 12 inch woofer, with suppsed benefits in terms of speed (12 inch) and extension and depth (18 inch).
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Showing 1 response by rauliruegas

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rauliruegas
12,781 posts
 
Dear Outlier and friends: IMHO it is better to have to identical subs it does not matters which is the crossover frequency.

There are IMHO many subjects on the subs integration and maybe many things to know about, here are some links that can be interesting to read:

http://www.soundstage.com/maxdb/maxdb061999.htm
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&27&4#27
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&31&4#31
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&75&4#75
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&84&4#84
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&158&4#158
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&183&4#183
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1117893153&openflup&196&4#196

There are to much to " explore " on the subs subject ( a complex one ) and there are a lot of misunderstood about, IMHO I think that till today the last word on subs is/are not writing yet.

Regards and enjoy the music.
Raul.
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