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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
viggen900's avatar
viggen900 OP
63 posts
 
hmmm... I assumed her receiver didn't have one & that the sub itself had the x-over. I beleive her receiver does have rca outputs... but I will need to go look I guess... thanks!

I definantly cannot swing that for a sub... let alone the amp to power it :) The subs I am looking at are under $300 ea, just trying to make sure the box size I was told is correct. I will check out DIYaudio....
shadorne's avatar
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shadorne
7,333 posts
 
I get the picture You want to get your hands on her receiver.

Damn, Shadorne, this one FINE woof woof. 80 lbs. - whoa! $1800, WHOA! Looks like it's worth it, though...

Yes...unfortunately, if you really really want to zig-a-zig-ahh with extremely high quality sound reproduction then, for an equivalent sum of money, it is better to pay for high quality high performance drivers rather than the exotic woodworking and stunning finishes that you typically find on the high end showroom floor....(Viggen is wise to be wary of what is out there if he simply wants sound quality)
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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