Bi-amping a speaker ?

olilugo
olilugo Posts: 405
edited September 2007 in Electronics
Hi all, I have a question abut bi-amping speakers.

I have read in some manuals, that I can use channel 6 and 7 if not in use to bi-amp the main speakers.

What that means to me is that I will take speaker cable from the receiver's rear channels (6, and 7) to the dual connectors in the back on the main speakers.

If this was to be done using an amp I guess I will interconnect the rear channels from the receiver to the 6, 7 channels on the amplifier and from the speaker terminal in the amp to the main speakers.

I hope that I have above info right?.

Finally the question: I have also read that there is no need to amplify the 4, 5, 6, and 7’s (surround and rear surround) channels since they actually contain small amount of sound compared to the main and center channels, which I agree since I have a 5.1 setup.
If this is right, wouldn’t it be that if you use the 6, and 7 channels out of the receiver, then the results would be rear surround signal going to your mains which in my mind would be: 1 the wrong information going to the wrong speaker, 2 very small amount of sound, (again rear surround signal) going to your mains which will actually make the sound not as good as just simple not using the bi-amp capability.

What am I missing where am I going wrong with my logic…
Current HT setup
Mains: B&W 804s
Center: Polk CSi5
Surround: Polk FXi3
Sub: Velodyne DLS-3750R
Receiver: Pioneer SC-07
Amplifier: Sunfire TGA5200
TV: Sony KDS60A2020
DBP: Sony DBP-S350
CDP: Pioneer DV-48AV
Interconnect cables: SignalCable analog II
speaker cables: SignalCable Ultra Speaker Cables Bi-wire
Post edited by olilugo on

Comments

  • hearingimpared
    hearingimpared Posts: 21,136
    edited August 2007
    I think you will find what you need to know here.

    Plus the drawing below shows how it is done with an NAD T-773.
  • olilugo
    olilugo Posts: 405
    edited September 2007
    Hi all, hearingimpared thanks for the link.

    I have done a bit more research into this and this is what I found.
    The pioneer elite vsx94txh the latest version of the elite series. The manual says that you can use the surround back connectors for Bi-amping. The way it is acomplished is that you will set it up and then you go into the settings and set it to Bi-amp. The older versions the only settings available were on, off, auto, but this just meant for the receiver to detect the surround back speakers.
    The new setting seam to say the processor will send main signal info to the surround back connections if set to bi-amping which is what I though need it to happen.

    I hope this is helpful.
    Current HT setup
    Mains: B&W 804s
    Center: Polk CSi5
    Surround: Polk FXi3
    Sub: Velodyne DLS-3750R
    Receiver: Pioneer SC-07
    Amplifier: Sunfire TGA5200
    TV: Sony KDS60A2020
    DBP: Sony DBP-S350
    CDP: Pioneer DV-48AV
    Interconnect cables: SignalCable analog II
    speaker cables: SignalCable Ultra Speaker Cables Bi-wire
  • cyberhazard
    cyberhazard Posts: 67
    edited September 2007
    My AVR sets up the same way with unused rear channels. Works well and helps to feed my hungry 9's.
    The Escape Pod Equipment
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  • rtart
    rtart Posts: 835
    edited September 2007
    Never found biamping to help much unless using a tube amp for the mids and tweets and a solid state amp for the woofers. The logic is that the tube amp will provid better highs than a solid state amp.
    My 7.4.4 DIY 4k Home Theater:
    Polk LSiM 707 L-C-R, LSiM702 side surrounds, LSiM 705 rears
    Polk LSiM 702s x 4 on the Ceiling Atmos speakers
    2 x SVS PB12/Plus 2's
    Denon X3700H
    Emotiva XPA11 Gen 3
    XBox One X 4k & BD and streaming
    Panasonic UB-420 4k player
    HD-A35 HD DVD
    Oppo BD-103D for hirez audio
    Technics SL-D2 TT, Grado Gold Cartridge
    JVC DLA-RS2000/NX7 projector
    Silver Ticket 120" acoustically transparent screen
    Berkline 090 electric recliners with Aura Bass Shakers
  • hearingimpared
    hearingimpared Posts: 21,136
    edited September 2007
    rtart wrote: »
    Never found biamping to help much unless using a tube amp for the mids and tweets and a solid state amp for the woofers. The logic is that the tube amp will provid better highs than a solid state amp.

    I was considering this when I was looking for an amp to power my tweeter arrays. The reason I didn't go with it was because I was advised that tube amps and sand amps have different speeds and they would sound out of sync with each other.

    Do you actually have experience with bi-amping with a tube amp on the highs and a sand amp on the lows?

    PS: when I bi-amp'd my 1.2 TLs with two sand amps, this made all the difference in the world sonically for the better.
  • rtart
    rtart Posts: 835
    edited September 2007
    I biamped a tube amp and a sand amp many years ago. Did it with a Nikko Alpha 230 and a Dynaco (I think) tube amp on my DCM Timewindows. Can't really remember that it made a huge difference, but there's a good chance that I've killed those brain cells over the years, too. Looked cool, though.
    My 7.4.4 DIY 4k Home Theater:
    Polk LSiM 707 L-C-R, LSiM702 side surrounds, LSiM 705 rears
    Polk LSiM 702s x 4 on the Ceiling Atmos speakers
    2 x SVS PB12/Plus 2's
    Denon X3700H
    Emotiva XPA11 Gen 3
    XBox One X 4k & BD and streaming
    Panasonic UB-420 4k player
    HD-A35 HD DVD
    Oppo BD-103D for hirez audio
    Technics SL-D2 TT, Grado Gold Cartridge
    JVC DLA-RS2000/NX7 projector
    Silver Ticket 120" acoustically transparent screen
    Berkline 090 electric recliners with Aura Bass Shakers