Denon, Yamaha or Marantz Receiver

[markw]

I think what you're referring to is that the units under test had to be run at, or "preconditioned", for 1/3 (or 1/2, dunno) their ratd power for one hour before actual testing began. This gave somewhat of an assurance that they would not "blow up" instantaneously when called upon to deliver their rated power, ala PMPO Type ratings.

[stratman672001]

I just looked it up
I stand humbly corrected
(c) The amplifier shall be
preconditioned by simultaneously operating
all channels at one-eighth of
rated power output for one hour using
a sinusoidal wave at a frequency of
1,000 Hz; provided, however, that for amplifiers
utilized as a component in a
self-powered subwoofer system, the sinusoidal
wave used as a preconditioning
signal may be any frequency
within the amplifier’s intended operating
bandwidth that will allow the
amplifier to be driven to one-eighth of
rated power for one hour

(e) Rated power shall be obtainable
at all frequencies within the rated
power band without exceeding the
rated maximum percentage of total
harmonic distortion after input signals
at said frequencies have been continuously
applied at full rated power for
not less than five (5) minutes at the
amplifier’s auxiliary input, or if not
provided, at the phono input

[nick4433]

OKAY! So I am still undecided over which cae should I finally buy! I will then have some audio related questios, maybe!