Pioneer Elite SC-57

disneyjoe7

I like Pioneer Elite receivers, I own one an older one not a SC model.

Could someone tell me how this could truth? How can it give 140w x 9 which is 1260w, when it consumption 370w? I know the specs for a receiver isn't really truth, but seems like a really lie.

From there specs page.

Class D3
Channels 9.1
Power Output: Watts per Channel 140 x 9 (1kHz)
Estimated Power Consumption 370 Watts

heiney9

1kHz test tone is one reason. I bet it's a burst and not continuous.

Don't know about you, I don't listen to a constant single frequency test tone burst.

And yes, it is very shady and misleading.

H9

disneyjoe7

A burst and how is this really watt output.

heiney9

disneyjoe7 wrote: »

A burst and how is this really watt output.

You'd have to ask them and/or the FTC. There is no standard accepted way, that's why all the contraversy all the time about wattage ratings and why one shouldn't pay a lot of attention to them.

H9

cnh

What Brock is saying sounds credible. This is something I've also wondered about when comparing AVRs, in particular!

Here are some examples of what I own.

The Onkyo TX-SR 805 draws 9.5 amps (9.5 x 120 = 1140 watts) and this amp is rated pretty much near its 130 watt per channel (at least in 5.1 surround--it also weighs close to 51 lbs--most of that weight is in a super-sized EL transformer in the front)

My Denon AVR 2807 draws 6 amps (6 x 120 =720 watts) is rated 110 watts/channel and is probably somewhere under that in 7.1 (maybe 85 watts?) The unit weighs about 31 lbs. most of the weight in the transformer (again).

I used to own a Panasonic D amp. power draw 135 watts draw rated 100 watts x 6 into 6 ohms (there is one of the tricks--higher ratings into 1 khz at 6 ohms). But like the Pioneer, these digital amps are very "efficient", and outside testing of this receiver had it equaling or bettering Onkyo and Yamaha AVRs in the 75-85 watt/channel range that drew close to three times the watts in power?

The ratings of all three of those amp sections were done exactly "alike"! So now I'm confused. But I know from my experience of having used the Panasonic (years ago) that it did sound like it was, in fact capable of delivering a reasonable amount of HT power?

What we're talking about is how this thing can put out considerably more than it can pull in. Because under NO measure is this amp putting out less than 30 watts/channel peak!

I'm with you. But the Pioneer also has those ICE amps which are almost 90 percent efficient whereas the A/B amps above are, at best 50 percent?).

cnh

PrazVT

Perhaps the measurements from this review will help...

www.hometheater.com/content/pioneer-elite-sc-57-av-receiver-ht-labs-measures

disneyjoe7

Some of the best rating from a receiver I ever seen. :cool:

mantis

The SC models do a great job of retaining their rated watt spec. They are very powerful and can drive most speakers well. I have yet to have any issues filling large theater rooms with sound and power dynamic's.

jgscott

Great ratings