DIY sub with existing amp or buy OEM?

Bamadude
Bamadude Posts: 245
edited November 2008 in DIY, Mods & Tweaks
Hey guys, I'm looking to replace my sub with something much beefier. I've been thinking about a used SVS PB12-Plus/2 but I found the drivers from that sub (dual 12.2's) and am entertaining the idea of a DIY. Right now the only way to justify the effort is if I could use my existing amplification and save the money of buying a dedicated amp. So, would it make any sense to power the two 12.2's with two unused channels on my Sunfire Cinema Grand (200@8ohms/400@4ohms)? Would that work? Hurt my amp? Not be enough juice? Or in your opinion not even be in the same ballpark as the real SVS box with the 900 Bash? Any thoughts appreciated. Thanks!
AVR: Pioneer VSX-84TXSi (RIP - lightening) / Amp: Sunfire Cinema Grand / Klipsh R-10B Sounbar, LC65fx / Sub: Elemental Designs LT/1300 / TV: Panasonic TH-50PH9UK /SIZE]
Post edited by Bamadude on
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Comments

  • ShinAce
    ShinAce Posts: 1,194
    edited November 2008
    That's a lot of juice that you have on hand. Definitely enough to get you more than started.

    If the amp is happy with 4 ohm loads, do that.
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  • nadams
    nadams Posts: 5,877
    edited November 2008
    How are you planning on crossing over those two channels to eliminate high frequencies to the sub? I don't know much about Sunfire gear, so maybe it has an option to drive subs?
    Ludicrous gibs!
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  • Bamadude
    Bamadude Posts: 245
    edited November 2008
    I plan to use the sub out signal from my AVR (see sig) to the Sunfire. Not sure how to split the signal though, or if it can/should be done that way.
    AVR: Pioneer VSX-84TXSi (RIP - lightening) / Amp: Sunfire Cinema Grand / Klipsh R-10B Sounbar, LC65fx / Sub: Elemental Designs LT/1300 / TV: Panasonic TH-50PH9UK /SIZE]
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  • ShinAce
    ShinAce Posts: 1,194
    edited November 2008
    Yeah, split it normally(y-cable).

    Even if you didn't have a sub-out, partsexpress sells RCA crossovers for line level signals. At 5$ a pop, you would be laughing considering the price of a sub amp.
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  • Bamadude
    Bamadude Posts: 245
    edited November 2008
    So pushing two LSi15's an LSiC and these two drivers wouldn't be over doing it with my amp? I like to listen LOUD :)
    AVR: Pioneer VSX-84TXSi (RIP - lightening) / Amp: Sunfire Cinema Grand / Klipsh R-10B Sounbar, LC65fx / Sub: Elemental Designs LT/1300 / TV: Panasonic TH-50PH9UK /SIZE]
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  • ShinAce
    ShinAce Posts: 1,194
    edited November 2008
    Make sure it keeps cool(cabinet open and so forth) and if it ever shuts down, ease up on bass boost and volume.
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