Specifications

George S.

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#4
Ask Joe, aka "Gepetto", for specs on a White Oak Audio Designs PL400. He is the owner of that business.
For specs on a stock PL400, download a service manual.
 

J!m

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#9
Hmmm… 16kW into an ohm… we’re gonna need more power on the supply side.

So, if an amp produced 1000 watts into 8 ohm load, and we double as impedance halves, we need a lot of power.

1000w/8ohm is reasonable but being able to properly support it is not. The power supply would have to be quite robust and I think a 220v supply would be mandatory.

Probably not the sort of thing you think about Joe, but how would you handle such a challenge?

Parallel amps for each channel might help (four amps for stereo; balanced line in) but that’s complicated. But, even if two amps, I think four chassis will be needed due to power supply mass and heat sink area needed.

Worlds first amp on wheels with remote control to move it? I imagine we’d be over 300# weight per channel.

Edit- remote water cooling. Radiator with fan and a small circulation pump to pull heat away, into another room so the noise of the fans does not distract.
 

mlucitt

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#10
Jim,
I built a 1000W mono amp rated for 8 Ohms a few years ago, it was a guitar amp so the circuit was not audiophile quality, but it did put out 90 Volts into an 8 Ohm dummy load. The toroid transformer was huge and very heavy, I think it was 35 pounds. The amplifier had a soft start circuit and when running at full power did not trip the 15 Amp breaker. The massive heat sinks would get warm, I had to lower the volume coming from the JBL speaker stack due to the pain threshold, so it never had a chance to get really hot.

I believe a well-engineered power supply could support a 1000W stereo audiophile-quality amplifier capable of 8 Ohm loads, but it will be very heavy. The Phase Linear Dual 500 fits into this category. You could also consider a class D 1000 Watt switching amp that weighs 6 ounces and fits in your hand. They sell them on ebay every day...
 

J!m

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#11
I think if we remain biased in class A for the first 200 watts or so, the switching distortion will not be audible as it switches into class B...
 

MarkWComer

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Victim of the record bug since age five
#12
Hmmm… 16kW into an ohm… we’re gonna need more power on the supply side.

So, if an amp produced 1000 watts into 8 ohm load, and we double as impedance halves, we need a lot of power.

1000w/8ohm is reasonable but being able to properly support it is not. The power supply would have to be quite robust and I think a 220v supply would be mandatory.

Probably not the sort of thing you think about Joe, but how would you handle such a challenge?

Parallel amps for each channel might help (four amps for stereo; balanced line in) but that’s complicated. But, even if two amps, I think four chassis will be needed due to power supply mass and heat sink area needed.

Worlds first amp on wheels with remote control to move it? I imagine we’d be over 300# weight per channel.

Edit- remote water cooling. Radiator with fan and a small circulation pump to pull heat away, into another room so the noise of the fans does not distract.
AAND… With a Yoko Ono record, you could wipe out half of the North Korean army in three minutes!
 
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