How to bi-amp pair of Polk Si9's

Audio5oh
Audio5oh Posts: 28
edited August 2009 in Speakers
I should probably know the answer to this, but I rather be safe than sorry. Currently, I have my LSi9's connected to an Outlaw 7125, 7 channel amp, rated at 190wpc @ 4ohms. I'm using an Sony STR-DG1000 receiver as a preamp. I have NO issues with sound (set up for 5.1 surround sound), however, I would like to try the amplification capability using the Front and Back Surround speaker connections to give the Front LSi9's more power. How would I go about doing this?
AVR: Sony STR-DG1000
Mains: LSi9's
Center: LSiC
Rear Surrounds: LC60i's
Sub: PSW505
Amp: Outlaw 7125
TV: Samsung 46" LN46A650
Post edited by Audio5oh on
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Comments

  • VSchneider
    VSchneider Posts: 443
    edited August 2009
    Y-split the signal from Sony to the Outlaw, feeding one pre-out channel to two amp channels (Left Front to Left Front and Left Surround Back, for example). Remove the brass straps connecting top and bottom terminals and feed output from 2 amp channels to separate terminals on each speaker; red to red, black to black.

    This is similar as passive bi-amping using Surround Back. Whether there's any benefit is hard to tell since it still the same amp and the same power supply.
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  • thuffman03
    thuffman03 Posts: 1,325
    edited August 2009
    VSchneider is correct on how to do that. Not sure if you will hear a difference but it would be nice to try. Report back to let us know what your impressions are.
    Sunfire TGP, Sunfire Cinema Grand, Sunfire 300~2 (2), Sunfire True Sub (2),Carver ALS Platinum, Carver AL III, TFM-55, C-19, C-9, TX-8, SDA-490t, SDA-390t
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  • Audio5oh
    Audio5oh Posts: 28
    edited August 2009
    Nah, I couldn't really tell if there was a difference. It was very little. I'll probably just put it back the way it was. As I said before, i have to issues with my set up. The sound coming out of these speakers is outstanding!
    AVR: Sony STR-DG1000
    Mains: LSi9's
    Center: LSiC
    Rear Surrounds: LC60i's
    Sub: PSW505
    Amp: Outlaw 7125
    TV: Samsung 46" LN46A650
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  • devani
    devani Posts: 1,497
    edited August 2009
    i see upgrade in the future~~
    Video: LG 55LN5100/Samsung LNT4065F
    Receiver: HK AVR445
    Source: OPPO BDP-93
    HT: POLK SPEAKERS RTi6, FXi3, CSi5, VTF-3 MK2
    2Ch system: MC2105, AR-XA, AR-2A, AR9, BX-300, OPPO BDP-83
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