2. amps-preamps
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Bi-amp at 140 watt each, or single 200 watt?

Okay, so I got the Mirage OMD-28s (6 ohm), and they are fantastic. Except that they really need more power. I am currently bi-amping them through my Marantz SR7001, and it just isn't enough power at 110 watts for each amp. It was ample for the OMD-15...but not these big boys.

I was thinking about getting the new AV Separates from Marantz, which would allow me to run 140 watts from separate, discrete, amps. But seeing as that is only 30 watts more than what I have now...I'm not sure if that is the best route.

So...here are my questions. If I'm bi-ampng 140 watts, does that equal a 280 watt single amp? Which is better...two 140 watt amps in a bi-amp configuration, or single 200 watts?

Thanks in advance for any help or input. :-)
Mot
manoterror

Showing 2 responses by manoterror

manoterror OP
216 posts
 
Tobias,

Thanks for the response. I had no idea that it would take that much power for an increase in volume of 3db. As far as the sound quality goes...it's quite lovely...just not at the output volume I am used to when running the smaller towers. I'm sure it is because of the additional power needed to drive these big boys.

I'm not getting any distortion on peaks or protection mode, as I don't turn the volume up to the max of 18...I only go to 0. But when I want to really crank some Tool or Coheed &Cambria, I think I need more headroom.

I absolutely want more clarity, detail, etc. That is why I was thinking of stepping up to the AV Separates with balanced connections. I'm always open to suggestions. I even thought about 7 Outlaw 2200 mono-blocks, giving me 300 watts at 6 ohm...or 600 bi-amped for the fronts. :-)

Mot
manoterror OP
216 posts
 
Okay, so that is what I was wondering. So, if I get this right...2 amps at 140 is still just 140. So in reality, I would be better off with a single 200 watt amp.

The speaker manual says they are designed for bi or tri-wiring, and they recommend it for improved sound. I will have to research the peak power, current and voltage for the amps I'm looking at. It also looks like I have more research to do.

REALLY appreciate all the input! Super helpful for a newbie audiophile.
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