#97589 - 01/14/18 10:27 AM
Does the 976 support bi-amplification?
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Deputy Gunslinger
Registered: 11/27/17
Posts: 4
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I'd love to pair it with a 7 channel amp for a 5.2 setup.
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#97591 - 01/14/18 01:47 PM
Re: Does the 976 support bi-amplification?
[Re: shokubry]
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Desperado
Registered: 04/08/08
Posts: 2676
Loc: Columbus,North Carolina
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This seems more like an amp question. Any un-used channels on the 976 cannot be re-assigned to the L/R channels for instance. The 976 can output a channel signal which would then have to be split between two amp channels and fed to the bi-amp connections on your speakers. Since you would be bypassing the internal crossover of the speaker it would need some sort of external active crossover if for nothing else to prevent destroying the tweeters.
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Music system Model 990/7500/Magnepan 1.6 QRs/Technics SL1200 MK2/Aperion S-12 Subwoofer/OWA3/Sony NS75H DVD APC H15 Power Conditioner
TV System Large Advent Loudspeakers/ Polk center/Monoprice surrounds/Panasonic Viera 42 inch/Onkyo HT-RC260/Sony BDP S590/Directv
Home Theater System Onkyo PR-SC886/Outlaw 7125 Klipsch RF-82 L/R,RC-62 center, RB-35 SR/SL, BENQ HT1075, Outlaw LFM1-EX/OPPO BDP-83/Directv Harmony ONE Blue Jeans and Monoprice interconnects APC H15 Power Conditioner
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#97593 - 01/14/18 04:52 PM
Re: Does the 976 support bi-amplification?
[Re: shokubry]
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Desperado
Registered: 04/08/08
Posts: 2676
Loc: Columbus,North Carolina
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I would doubt the AV7703 has crossovers installed because the specifics of each speaker and its impedance values are so varied. When manufacturers build speakers they take into account all the parameters of the individual speakers in the box and make a crossover that takes advantage of the strengths and avoids the weaknesses. Bi-amping your speakers puts all of that engineering in your wheelhouse for better or worse.
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Music system Model 990/7500/Magnepan 1.6 QRs/Technics SL1200 MK2/Aperion S-12 Subwoofer/OWA3/Sony NS75H DVD APC H15 Power Conditioner
TV System Large Advent Loudspeakers/ Polk center/Monoprice surrounds/Panasonic Viera 42 inch/Onkyo HT-RC260/Sony BDP S590/Directv
Home Theater System Onkyo PR-SC886/Outlaw 7125 Klipsch RF-82 L/R,RC-62 center, RB-35 SR/SL, BENQ HT1075, Outlaw LFM1-EX/OPPO BDP-83/Directv Harmony ONE Blue Jeans and Monoprice interconnects APC H15 Power Conditioner
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#97595 - 01/15/18 12:59 PM
Re: Does the 976 support bi-amplification?
[Re: XenonMan]
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Gunslinger
Registered: 05/27/07
Posts: 126
Loc: Austin, Texas
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Actually any speaker that is setup for bi-amping, i.e. they have 4 terminals, will still use the internal crossover. The high end side will still have it own hi pass filter to remove the low frequency and vice versa for the low side. Although the 976 manual is not specific on this most processors with Balanced outputs also drive their unbalanced outputs simultaneously. Therefore I would use the balanced out put to drive the amp channel that would be attached to the low end and use the unbalanced to drive the amp channel attached to to the high end of the speaker. This should get you the Bi-amping you desire.
Now, on an entirely separate note, just because you can do something doesn't mean you should. If you have a good enough amp you usually won't see any improvements when you Bi-amp. Now if your amp is under powered you might see some improvements, but that's typically not the case. I think where XenonMan was going has more do to with using active crossovers. In this case all the filters are applied prior to the amp. However, in order for this to be truly effective you would need to bypass the crossovers that are internal to your speaker. Furthermore, you will need a great deal of understanding about creating crossover circuitry, which involves knowledge of the transducers, the cabinet, the cabinet design and so on. Even in the DYI community, most people still use passive crossovers post amplification.
But hey give the Bi-amping a try. It's only a few extra cables and some time. Maybe it will be a noticeable improvement for you. Let us know what you think.
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Emotiva XMC-1, Outlaw 7500, Sonus Faber Olympica III Fronts, SF Liuto Center, SF Surrounds, LFM-1 EX, Oppo BDP-103D, Apple TV (Gen. 4), Mitsubishi 65" Diamond DLP, Outlaw Cables, PS Audio Power Quintet, Duet and power cords.
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#97596 - 01/15/18 02:01 PM
Re: Does the 976 support bi-amplification?
[Re: shokubry]
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Desperado
Registered: 04/08/08
Posts: 2676
Loc: Columbus,North Carolina
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MDRconsult, thanks for the clarification. The crossover scheme makes much more sense as you explained. The Outlaw amps built by ATI all have a switch to select which input (XLR or RCA) to be used. As long as the selector is in the correct position it should be a cinch to connect it as stated above. Maybe Outlaw Ben can tell us if the XLRs are always on. I suspect they are.
_________________________
Music system Model 990/7500/Magnepan 1.6 QRs/Technics SL1200 MK2/Aperion S-12 Subwoofer/OWA3/Sony NS75H DVD APC H15 Power Conditioner
TV System Large Advent Loudspeakers/ Polk center/Monoprice surrounds/Panasonic Viera 42 inch/Onkyo HT-RC260/Sony BDP S590/Directv
Home Theater System Onkyo PR-SC886/Outlaw 7125 Klipsch RF-82 L/R,RC-62 center, RB-35 SR/SL, BENQ HT1075, Outlaw LFM1-EX/OPPO BDP-83/Directv Harmony ONE Blue Jeans and Monoprice interconnects APC H15 Power Conditioner
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#97618 - 01/18/18 06:33 PM
Re: Does the 976 support bi-amplification?
[Re: shokubry]
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Gunslinger
Registered: 01/16/11
Posts: 85
Loc: United States
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" Although the 976 manual is not specific on this most processors with Balanced outputs also drive their unbalanced outputs simultaneously. " Did anyone get a clarification on this? Im using the coaxial outputs for the 7 channels, but the XLRs for the subs, which works but doesnt exactly prove one way or the other. If they are both hot, I could provide signal for an entire second room !!
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Double drywalled, "Green Glue" treated Theater GIK acoustic treatment Epson 8700UB Projecting on a 135" Seymour XD Audio transparent screen Outlaw 976 Processor Outlaw 755 amp for Center and all four surrounds Adcom GFA 555II for Main L & R channels Behringer EP4000 for two homemade subs Outlaw Ultra X13 for REAL Sub Bass ! OPPO BDP103, Marantz CD63SE, Denon DP300F 2 Adcom ACE515s for AC current treatment Newport Theater Director for AC distribution. Speakers are all built by myself utilizing Dynaudio Drivers Second room: Yamaha receiver, Musical fidelity X10D tubes, Carver C9 holographic pro.
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#97619 - 01/18/18 07:14 PM
Re: Does the 976 support bi-amplification?
[Re: shokubry]
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Gunslinger
Registered: 01/16/11
Posts: 85
Loc: United States
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Well, i answered my own question. It must be a one-or-the-other deal. I ran cables from the balanced R&L to another amp and got nothing ! Anyone else try this ?
Edited by kiwiaudio (01/18/18 07:15 PM)
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Double drywalled, "Green Glue" treated Theater GIK acoustic treatment Epson 8700UB Projecting on a 135" Seymour XD Audio transparent screen Outlaw 976 Processor Outlaw 755 amp for Center and all four surrounds Adcom GFA 555II for Main L & R channels Behringer EP4000 for two homemade subs Outlaw Ultra X13 for REAL Sub Bass ! OPPO BDP103, Marantz CD63SE, Denon DP300F 2 Adcom ACE515s for AC current treatment Newport Theater Director for AC distribution. Speakers are all built by myself utilizing Dynaudio Drivers Second room: Yamaha receiver, Musical fidelity X10D tubes, Carver C9 holographic pro.
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#97665 - 01/23/18 07:38 PM
Re: Does the 976 support bi-amplification?
[Re: XenonMan]
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Gunslinger
Registered: 09/07/15
Posts: 129
Loc: Georgia, US of A!
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Since you would be bypassing the internal* crossover* of the speaker it would need some sort of external active crossover* if for nothing else to prevent destroying the tweeters. Depends upon the speaker. Most of the Polks sold over the last 10 years came w/4 BP allowing bi-wiring or passive bi-amping, therefore, in some cases may*, not be required*.
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#97666 - 01/23/18 07:41 PM
Re: Does the 976 support bi-amplification?
[Re: kiwiaudio]
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Gunslinger
Registered: 09/07/15
Posts: 129
Loc: Georgia, US of A!
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" Although the 976 manual is not specific on this most processors with Balanced outputs also drive their unbalanced outputs simultaneously. " the 976 drives both.
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