Can one use a "normal" amp on the sub output

thor098
thor098 Posts: 38
edited December 2010 in Subwoofer Hookup & Bass Management
I'm starting to build a home theater system. I bought a Denon 3311ci and I have an older Adcom 545 amp left over from building my two channel system. Can I use it to power two passive subs from the LFE sub ports. Will it recognize the LFE signal? Will it hurt anything?
2 CH
Parasound 2100 preamp
Polk Lsi15s
powered by a
Parasound HCA 1500a
2 Passive JBL 10" Subs
powered by a second
Parasound HCA 1500a

HT
Denon 3311-CI
Polk Lsi15 Fronts
Polk LsiC Center
Polk Lsi7 Surrounds
2 Passive Polk 10" Subs
powered by ADCOM 545
Post edited by thor098 on
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Comments

  • treitz3
    treitz3 Posts: 19,922
    edited December 2010
    Yes, no.
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
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  • ohskigod
    ohskigod Posts: 6,505
    edited December 2010
    I've done that.........as long as the amp works and your sub is passive......your good to go if you hook it up right. do NOT hook both channels to one sub (or driver voice coil) very bad for the amp.

    if you see only one input, one channel of the amp goes to it (or bridge amp if the sub is 8 ohms perhaps)

    they do make Dual Voice coil subs so you can hook 2 channels to it.

    it's fun to experiment, but my experience led to plate amps made for sub service being the best route, but again, trying can't hurt
    Living Room 2 Channel -
    Wiim Ultra. Jolida CD player. Fiio k11 R2R DAC, XTZ as300 Edge amp. Focal Cobalt 826 towers,

    Upstairs 2 Channel Rig -
    Classe Audio 5 Preamp, DIY1200as2 Icepower Amp x 2, Wiim pro streamer and Topping E70 Velvet DAC, California Audio Labs DX1 CD player, Polk LSi15's with MM840 woofer upgrade.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Schitt Saga 2 preamp, Topping a90 headphone amp, Mac Mini, Audiophonics Hypex NC252m amp, Polk r200's
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