Wiring amp for mains only

Cuchulain
Cuchulain Posts: 66
edited January 2013 in Basic Hookup/Wiring Questions
If I use the pre out from my rx-v671 into an amp and from there to my mains, how does the avr know which siganls to send through the pre out for the surround sound? I'm thinking the mains get the full signal anyway. Or is the pre out assignable? I didn't see anything in the manual saying so. Would I wire some other way? Thanks in advance!--Brian
AVR: Integra DTR-50.4
TV: LG 50PS70
DVD/CD/BR: OPPO BDP 93
MAINS: Polk RTiA7
CENTER: Polk CSiA6
Heights: Polk VS 625RT (in wall)
SURROUNDS: Polk TC60i (in ceiling)
REARS: Polk R1
SUB: Polk PSW 125
Post edited by Cuchulain on
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  • txcoastal1
    txcoastal1 Posts: 13,306
    edited January 2013
    http://usa.yamaha.com/products/audio-visual/av-receivers-amps/rx/rx-v671_black_u/

    The only preout I see in the specs is for a subwoofer
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
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  • tonyb
    tonyb Posts: 32,981
    edited January 2013
    In most cases, you need a full bank of 5.1 or 7.1 preouts, not just a subwoofer. Normally, if using just a 2 channel amp, you connect the front left and right preouts to the amps left and right inputs then connect speakers to the amp. No additional settings is required in the receiver. Unfortunately, it appears you don't have the preouts needed to do this.
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  • Cuchulain
    Cuchulain Posts: 66
    edited January 2013
    What about the "line out" beside the zone 2 out?
    AVR: Integra DTR-50.4
    TV: LG 50PS70
    DVD/CD/BR: OPPO BDP 93
    MAINS: Polk RTiA7
    CENTER: Polk CSiA6
    Heights: Polk VS 625RT (in wall)
    SURROUNDS: Polk TC60i (in ceiling)
    REARS: Polk R1
    SUB: Polk PSW 125
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  • ZLTFUL
    ZLTFUL Posts: 5,653
    edited January 2013
    "Line Out" and "Pre Out" are 2 completely different things.

    Line Out is typically a fixed voltage signal that is not volume controlable via the AVR.

    Pre Out is volume variable via the AVR.
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  • Cuchulain
    Cuchulain Posts: 66
    edited January 2013
    This amp I'm looking at: OSD AMP300. has "speaker in". Could this be used in the same way? Meaning does the amp take just the signal and amplify it and I would be relegated to using the volume on the amp for the mains?
    AVR: Integra DTR-50.4
    TV: LG 50PS70
    DVD/CD/BR: OPPO BDP 93
    MAINS: Polk RTiA7
    CENTER: Polk CSiA6
    Heights: Polk VS 625RT (in wall)
    SURROUNDS: Polk TC60i (in ceiling)
    REARS: Polk R1
    SUB: Polk PSW 125
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  • tonyb
    tonyb Posts: 32,981
    edited January 2013
    Cuchulain wrote: »
    This amp I'm looking at: OSD AMP300. has "speaker in". Could this be used in the same way? Meaning does the amp take just the signal and amplify it and I would be relegated to using the volume on the amp for the mains?

    Technically you could do it that way, but it will only work for 2 channel sources. In other words, playing a 5.1 movie may not work using the line out as it's 2 different circuits. To use an amp, like we said, you need preouts, unless you just want to go 2 channel only for music and movies in that configuration.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
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  • Cuchulain
    Cuchulain Posts: 66
    edited January 2013
    Thanks for setting me straight, guys.
    AVR: Integra DTR-50.4
    TV: LG 50PS70
    DVD/CD/BR: OPPO BDP 93
    MAINS: Polk RTiA7
    CENTER: Polk CSiA6
    Heights: Polk VS 625RT (in wall)
    SURROUNDS: Polk TC60i (in ceiling)
    REARS: Polk R1
    SUB: Polk PSW 125
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