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In Reply to: RE: Have to take the Lamm M1.1 off my list posted by A.Wayne on December 4, 2014 at 05:54:25:
4 ohm tap and they are mostly a Class B amp so clearly they are not heatsinked to have sustained power at 500 watts. JA states clearly that this test maximizes the stress on amps with Class AB (or B) output stages. Since continuous power is not a big deal with music I don't know why you would put this comment here. What's the point?
At idle we found it only uses about 45 watts per monoblock, so clearly mostly Class B.
The meters are ballistic design so they claim something like 80% accurate on peaks. Not perfect but gives a good relative idea.
"The McIntosh's maximum output power depended on the output tap chosen and the load, but when the tap was matched to the load, the amplifier easily exceeded its specified 500W at our 1% THD definition of clipping. The 8 ohm tap delivered no less than 720W into 8 ohms (28.6dBW), for example (fig.4), with similar deliveries into 4 and 2 ohms from their respective taps (figs.5 and 6). Despite the slight increase in source impedance, the MC501's ability to deliver current into the speaker load did increase with the decreasing output transformer tap. The 8 ohm tap was limited to 225W into 2 ohms (17.5dBW), for example, while the 4 ohm tap delivered 1000W (24dBW), the 2 ohm tap 630W (22dBW). "
Plenty of power on tap for almost any conceivable listening in a domestic situation.
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- RE: Have to take the Lamm M1.1 off my list - morricab 07:06:04 12/04/14 (0)
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