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In Reply to: Re: bel canto slew rate posted by rp1@surfnetusa.com on June 29, 2003 at 16:08:20:
It's in his literature, he also has .01 distortion specs, with the extremely FAST slew rates, e-mail him and ask him, you will see
Follow Ups:
He is pretty weak on the specs. The distortion is fine, as is that of many other fine amps. But there is no mention of the exact value of the slew rate.
I looked, and the following is all the spec material that appears on his web site:"Our OmegaStar amplifiers sound bigger, tighter, much more dynamic, stunningly smoother, and absolutely transparent. They have a power bandwidth extending to nearly 500 kHz, slew rates of hundreds of volts per microsecond..." (How many hundreds he doesn't say. If it isn't published it don't means squat because you can't hold him to it.)
"Fet Valve 550Ex hybrid vacuum tube amplifier. 250 watts per channel 20 to 20 kHz at less than 0.01% THD. 17" wide, 13" deep, 7" high. Shipping weight 38 pounds. All new AVA designed black chassis with black anodized faceplate and high efficiency black anodized extruded rear mounted heat sinks with 12 high current TO-3 case power MOSFET output devices. For 2 ohm loads and up."
The Omega III I beleive is 500v/uS..the OmegaStar are 800V/uS. AVA is great stuff
The only place on the website that I see the figure of 800v/uS is on the preamp page where it refers to the speed of the buffer. I saw no such reference to the power amps.Buffers are very quick as a rule; it is hard to design a slow one. And if he is using one of the off-the-shelf high-quality op amp buffers that are available there are models that offer 1000v/uS. But neither speed is required for audio and really has nothing to do with the good sound his equipment has. Or I should say it is only a factor and not the most important one.
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