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#115261 - 11/07/05 06:48 PM Re: ok i'm confused....another M60Ti question
RickF Offline
axiomite

Registered: 02/26/05
Posts: 5210
Loc: Vero Beach, Florida
Actually that's an H/K 635 but I suppose it could happen to the best of them.

I was trying to point out that *I* could see where reading the information supplied on the back of this particular amp would confuse an idiot like me ... and I'm not trying to say that Jinx is an idiot like me or anything, I don't think.

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#115262 - 11/07/05 08:27 PM Re: ok i'm confused....another M60Ti question
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13636
Loc: Iowa
The good Lord knows I am when it comes to AV... I just know what sounds good to my ears.

AXIOM baaaaaaby


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#115263 - 11/07/05 09:17 PM Re: ok i'm confused....another M60Ti question
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10644
Although the wording on the back of the back of the B-3000 is a bit cryptic(e.g. what's "rated" mean), it apparently refers to power input, not output, as others have pointed out.

More generally, as has been discussed here before, if a wattage figure is shown on the back of the unit(not required)it will indicate an average power consumption figure unless "maximum", "full power" etc. is used. The UL testing requirement for safety reasons specifies all channels being driven at 1/8th of rated power for 1/2 hour without overheating and is ordinarily also used for specifying average power consumption, since 1/8th is considered about average. For example, a typical spec for a 7x100 watt receiver might be consumption of 450 watts(inciting claims of fraud from the uninformed). The UL test procedure would require running the unit at 12 1/2 watts per channel, about 87 1/2 watts total output. Although class AB amps operate at about 50% efficiency at full power, efficiency is far less at lower power levels and might be roughly 20% at 1/8th power. Therefore the 450 watts of consumption might allow around 90 watts of output during the UL testing procedure. The power consumption figure on the back would have relevance to the electric bill, but the rated FTC power output is the figure to look to for determining power capacity.
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