bi-amping question

pmckeealaska
pmckeealaska Posts: 808
edited March 2005 in Electronics
I have read much about bi-wiring on here and the consensus seems to be that there isnt really much to be gained by doing this. What about bi-amping? Would you expect to hear a noticable difference in sound? I assume distortion might decrease. Any thoughts?
Music and Movie Rig

Samsung 40" HDTV 1080p
LSi25 Front Speakers
LSiC Center Channel
LSiFX Surrounds
Rotel RB 1080 2-Channel Amp
NAD T763 Reciever
Denon DVD 2900 Universal Player
Audiosource 10 Band Digital Equalizer
Audioquest CV-8 speaker cables
Audioquest Sub-X subwoofer cables
Audioquest King Cobra Interconnects
Monster AVS 2000 Voltage Stabilizer
Playstation 3 120GB Slim
Post edited by pmckeealaska on
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Comments

  • PolkThug
    PolkThug Posts: 7,532
    edited March 2005
    Bi-amping helps you get more power to the speakers which is usually a good thing.
    Never Forget
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited March 2005
    I don't think the bi-wire consensus is "no benefit"... some hear some, some don't. Same with wire, IC's, etc.

    As for increased distortion... no... With more power available in bi-amping the amps are working at at lower percentage of their rated output vs. a single amp at a given SPL. And lower percentage means lower distortion...

    Now is the distortion audible in either case? Not likely... at least not until you are pushing the limits of the single amp.

    Will you hear a difference? Depends on what your current system is...

    So whatcha got?
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • pmckeealaska
    pmckeealaska Posts: 808
    edited March 2005
    Right now my system consists of a pair of LSi25 speakers with a NAD T763 being used as a pre-amp for 2 channel music use and a Rotel RB 1080 2 channel amp, with Monster cables throughout.
    Music and Movie Rig

    Samsung 40" HDTV 1080p
    LSi25 Front Speakers
    LSiC Center Channel
    LSiFX Surrounds
    Rotel RB 1080 2-Channel Amp
    NAD T763 Reciever
    Denon DVD 2900 Universal Player
    Audiosource 10 Band Digital Equalizer
    Audioquest CV-8 speaker cables
    Audioquest Sub-X subwoofer cables
    Audioquest King Cobra Interconnects
    Monster AVS 2000 Voltage Stabilizer
    Playstation 3 120GB Slim
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited March 2005
    I'd think it'd be a toss up...

    While the LSi's are very demanding, the Rotel is a high current lil' bugger... I would not lay out a big wad of cash for a 2nd amp, but if you can demo one from your dealer, I'd play with it.
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • unc2701
    unc2701 Posts: 3,587
    edited March 2005
    You can't biamp the LSi25's... or rather, you can't Tri-amp them.

    The top two binding posts go to the tweeter and the two drivers; the bottom two are a speaker level input to the subwoofer. The woofer has it's own amp, so you're already bi-amped. In oder to triamp them, you'd have to take apart the speakers... you best bet would be to use the line level in for the subwoofer and get ahold of the crossover/ binding posts from a set of LSi 9's. And void the hell out of your warranty. yes, I've been kicking this around. No, I don't think I'm going to do it.
    Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
    Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565
    Jordan JX92s : MF X-T100 : Xray v8
    Backburner:Krell KAV-300i
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited March 2005
    That's right... been a while since we had a discussion about "bi-amping" a powered tower... I forgot.

    ... but I was right about the impact being minimal... :p
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • unc2701
    unc2701 Posts: 3,587
    edited March 2005
    Yeah, if I were the one designing the LSI 25's I would have set them up the same as the LSI 9's with the speaker level sub input reading off the same binding posts as the mid's...

    Of course, it's hard enough tweaking them to blend with a seperate sub, the added pain of getting a good biamp mix on the top half would be a nightmare... But you would be able to get true biwire to the top half...

    Anyone know how the LSi 15's are set up? I'm curious.
    Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
    Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565
    Jordan JX92s : MF X-T100 : Xray v8
    Backburner:Krell KAV-300i
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited March 2005
    From my obviously faulty memory, the 15's are the same as the 9's and 7's... ported, not powered so bi-wire and bi-amp-able...
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • unc2701
    unc2701 Posts: 3,587
    edited March 2005
    Actually, I was wondering if the woofer on the LSi 15 had it's own posts or went with the mid's when you biwire/biamp...
    Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
    Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565
    Jordan JX92s : MF X-T100 : Xray v8
    Backburner:Krell KAV-300i
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited March 2005
    Got you...

    The woofer is on its own... the MW's and tweets are together.
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
    · Share on FacebookShare on Twitter