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Quote:
Originally Posted by Ckindt /t/1521813/outlaw-7125-bridgeable#post_24461432
Hi.
I haven't found any definitive answers.
Is the 7125 bridgeable? I'd like to use two channels to power one speaker.
Quote:
Originally Posted by FMW /t/1521813/outlaw-7125-bridgeable#post_24462679
Why? Are you aware that bridging causes the amp to see 1/2 the impedance of the speaker? What is the voltage swing and how much do you need?
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I acquired a set of RTIA9s to replace my monitor 60s (front left and right) and I was considering existing options to provide the 9s with more headroom.
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Between my onkyo 929 and the outlaw I have plenty of channels to spare in my 11.1 setup so I can sacrifice 4 channels on the outlaw for two 9s[/quote}
If you don't need the amps, don't use them. I'm not aware of any AVR that provides for bridging. Bridging is something pro audio people use. It doesn't have much application in home audio.
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I read a thread on the outlaw site that passively bi-amping is a possibility by splitting the rca input to the amp across two channels and connecting the two equal amp outputs to the speaker posts. In this case more available current should equal more headroom.?
Not really. It would simply split up the drivers and send full power to each rather than sending what each can dissipate. It accomplishes nothing. Proper biamplification is done by putting the crossover at line level in front of the amplifer, not in the speaker cabinets.
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I'm not certain I'll necessarily need the headroom, but you never know. I don't want to miss out on the 9s potential without buying another amp.
90% movies at -10db typical max volume
I'm pretty sure you won't. Based on what you are saying I would doubt that you dissipate any more than 20 or 25 watts per channel on peaks. Any AVR that I know of will handle that without difficulty. Amplifier power, strangely, is one of the least important aspects of home audio.
I need at least two channels of the 7125, but use them all. The 929 only has 9 amps and requires 2 external amps for the 11 channel output via pre-outs.Quote:
Originally Posted by FMW /t/1521813/outlaw-7125-bridgeable#post_24463058
If you don't need the amps, don't use them..
hmm..Quote:
Originally Posted by fatbottom /t/1521813/outlaw-7125-bridgeable#post_24465073
If your speakers are bi-ampable, you could use Y cable unless that causes a problem with shorting inputs or something like that. I used a two channel poweramp to bi-amp my center.
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They talk about leaving the jumper bars on the speakers and running two amp channels with the same signal split from the receiver. Wouldn't this allow for more available current?
i don't understand your recommendation on the wiring.Quote:
Originally Posted by fatbottom /t/1521813/outlaw-7125-bridgeable#post_24465207
If you use a av amp, then pre-outs are filtered are they not (set them to small 80hz for example) I don't know if you can use one of these- contact Outlaw
http://topzoneonline.com/rca-y-cable-1-rca-plug-to-2-rca-plugs-3-inch.html
My poweramps a have in/out type connection
http://att.jdbbs.com/forum/day_070304/20070304_d2c0580ec2ca40ec3afaFCiDjkqG1lZp.jpg
Take short cable from load left, to input right. Input left is the RCA cable from the pre-amp
ummmm. No? BANG
are you sending full range signals to all posts and letting the speakers' internal crossovers and filters determine what frequencies make it to the drivers or are you conditioning the signal to the amp first?Quote:
Originally Posted by fatbottom /t/1521813/outlaw-7125-bridgeable#post_24465349
CORRECT way.
http://forum.audio.com.pl/index.php?act=attach&type=post&id=1773
Yeah, i'm at that conclusion, but am just trying to sort out this bi-amping thing. Why so common if so useless?Quote:
Originally Posted by kikkenit2 /t/1521813/outlaw-7125-bridgeable#post_24465670
And going from 125 watts per channel to 200 isn't
going to change the performance of your speakers anyway.
It is called marketing. Once one brand offered it and sales boomed, everybody else copied it so they wouldn't be left behind. Same thing with speakers. We see people all the time want speaker brand a instead of speaker brand b just because of dual binding posts with metal jumpers. A $5 part made some people rich. Polk even puts them on their cheap bookshelf speakers. Just don't let your jumpers come loose.Quote:
Originally Posted by Ckindt /t/1521813/outlaw-7125-bridgeable#post_24465717
Yeah, i'm at that conclusion, but am just trying to sort out this bi-amping thing. Why so common if so useless?
Quote:
Originally Posted by Ckindt /t/1521813/outlaw-7125-bridgeable#post_24465717
Yeah, i'm at that conclusion, but am just trying to sort out this bi-amping thing. Why so common if so useless?
Thanks everyone for being patient with my ignorance.