Power hungry speakers

[aarond]

I don't know about the power supply on the 1400 but on the 2400 its a 500w power supply so yahmaha math is 120x7=500?

[zumbo]

ross, let me get this straight. You are saying, if the H/K avr-525 and the Yamaha rx-v1400 can be had for the same amount of money, you recommend the H/K? *audioholics.com/iB_html/non-cgi/emoticons/rock.gif" border="0" valign="absmiddle" alt='???'>

[zumbo]

aarond, WTF? audioholics.com/iB_html/non-cgi/emoticons/rock.gif" border="0" valign="absmiddle" alt='???'>

[annunaki]

Why not? The job of an amplifier is to simply amplify the signal degrading it as little as possible and give you exactly the amount of power it is rated for if not more. To me, the H/K does this job better. You get the exact amount of power it is rated for if not more. With the Yamaha, in surround mode, you get less than rated power.

[zumbo]

I responded to the wrong person. OOPS! Oh well, point taken.

[annunaki]

Just because a power supply is a given wattage, does not mean that you get that much out of it. The amplifier is not 100% efficent. The last time I looked most home class A/B amplifiers were in the 45%-55% efficent. So in that case a 500 watt supply would yield 275 watts output at 55% efficency. Or 137.5 watts x 2 or 39.29 watts x 7. Guess what? Based upon the last couple reviews I have seen on Yamaha receivers, this lines up pretty well. I do not know if this equation is totally correct, but it does fit.

[zumbo]

So, that makes this a BIG FAT LIE!


Digital Home Theater Receiver
RX-V1400
High Performance Home Theater Receiver that Satisfies All the Requirements
for Power and Control of a Sophisticated Home Theater System.

Maximaum Power : 165W x 7 (1,155W Total)

Minimum RMS Output Power (8 ohms, 20-20,000 Hz 0,04% THD, FTC): 110W x 7(Total 770W )

Damping factor (8 ohms, 20-20,000 Hz): 140(speaker A)

Frequency Response: 10-100,000 Hz +0, -3dB

Total Harmonic Distortion (20-20,000 Hz, CD): 0.04%

Signal-to-Noise Ratio (CD, 250 mV): 100 dB

Stanby Power Consumption: Less than 0.5W


I doubt it!

[aarond]

zumbo
did you read right above standby power consumption  the total power consumption for your 1400 is 500watts

[zumbo]

Yep. What does that have to do with this?

[zumbo]

That is the draw from the wall outlet to provide power for the receiver! That is not output!