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Old 04-22-2023, 12:10 AM
phunge phunge is offline
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Join Date: Jan 2013
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Quote:
Originally Posted by Juspassin'bye View Post
It seems that Boulder 2150s mono is 1000 watts peak power from their product spec page...a bit misleading, would have been far better the actual rms rating..

Parasounds JC1+ 1300 watts rms at 2 0hms and stable with impedance dips below
1 ohm
Please! The JC1+ is a fine amp, don't get me wrong -- but nowhere in the same league as the boulder 2150.

Have a look JA's measurements

JC1+ delivers:
450W into 8 ohms
850W into 4 ohms
1200W into 2 ohms
https://www.stereophile.com/content/...measurements-0

2150 delivers:
960W into 8 ohms
1450 into 4 ohms
House circuit breaker tripped before he could measure the rated 4000W into 2 ohms
https://www.stereophile.com/content/...r-measurements

To get the full power out of the boulder, you need 22amps at 220v input or 45amps at 110v as it consumes 5000w from the wall.

And the 2150 is pure class A. The JC1+ noise measured at 1kHz at 53W into 8 ohms, 0.0049% THD+N. The 2150, pushed way harder, measured an order of magnitude less noise 1kHz at 400W into 4 ohms, 0.00036% THD+N

I'm not really a measurement guy, but sometimes they are useful for context.
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