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Sub DIY vs mass produced?

Is there anything that makes a mass produced sub better then something I could make myself? I want to add a pair of subs to my ht room & I would like to go with pair of 12's. I have a extra adcom gfa-5500 that I was going to use to power the speakers & possibly buy another gfa-5500. I was planning on using Image Dynamics IDQ12's for the speakers in a 4cu ft box tuned to about 20hz (that's what someone suggested I do).

IS there a reason a store bought mass produced sub would work better like a velodyne, JL or whatever?????

thanks
128x128viggen900

Showing 2 responses by tpsonic

tpsonic
1,092 posts
 
What crossover? Most HT?LFE subs come in about 100-120Hz.Will you be able to adjust their output to match the system,or will you be able to adjust via a processor/DVD with variable level?
I have had excellent results using the Dayton Reference drivers (HF,haven't played woth the HO versions).
tpsonic
1,092 posts
 
If you're goung to use the LFE output on the receiver,check out the D-sub kit.15" with 240W plate/amp at around $300 ea (www.parts-express.com).
They offer the 12" Reference series with 500W PL/amp,which insorporates the parametric EQ (Mo money).
Been happy with the 240W units powering 12+15" woofers.They offer crossover,level and variable phase.
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