does anyone know how many watts per channel my pioneer stereo model SX-780 puts out?
how many watts per channel does my stereo have?
- Thread starter 1980'slover
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As quoted from http://www.silverpioneer.netfirms.com/
SX-780
The SX-780 was the last of the 700 series receivers Pioneer built. It was built from 1978 through 1980. It was rated at 45 watts per channel. List price in 1978 was $325.00 and it was manufactured in Japan. You can see from this photo just how handsome this receiver was and why it is still popular today with collectors of Pioneer receivers from the Silver Era. The late 1970s were indeed very good years for Pioneer receivers. Examples like this one can be purchased for between $60.00 and $100.00 through internet auctions. The are as pleasurable to look at as they are listening to.
Scott
SX-780
The SX-780 was the last of the 700 series receivers Pioneer built. It was built from 1978 through 1980. It was rated at 45 watts per channel. List price in 1978 was $325.00 and it was manufactured in Japan. You can see from this photo just how handsome this receiver was and why it is still popular today with collectors of Pioneer receivers from the Silver Era. The late 1970s were indeed very good years for Pioneer receivers. Examples like this one can be purchased for between $60.00 and $100.00 through internet auctions. The are as pleasurable to look at as they are listening to.
Scott
Cool_Manchu
Time to play B-sides...
Allegedly...but we all know that those are 1970s watts...and those watts are very underrated, unlike today's "receivers"
Yep, Old School watts on that puppy...
whoaru99
Epic Member
Bahhhh....
I'll grant you that some AV / HT receivers have taken liberty with ratings. But, 2-ch receivers of today must still comply to the FTC power rating methodology. Which, BTW, was developed to control the bogus ratings back in the "power war" days.
ShaneC
Super Member
not sure if this is relevant or not, but I just looked at my A-80 manual:
Continuous Power Outpu at 1kHz (both channels driven)
THD 0.003% 8 Ohms, 150wpc
THD 1% 8 Ohms, 220wpc (Din) (what's that mean?)
Music Power Output at 1 kHz (both channels driven)
THD 1 % 8 Ohms 313 wpc
and goes on and on and on through the distortions, etc.
jimbofish
for TRULY GREAT MUSIC
Back then, some brands would rate their equipment at what ever specs would give the best result, so their stuff would look better than the other guy's. Out of a given number of ratings, some might be rated at 4 ohms, some at 8, some at just a single frequency or a limited range, some at RMS watts some music power, some at high distortion levels. On top of that, a given maker might rate distortion at 1 watt, power at 1khz, and frequency response without regard to either of those. For the most part, the figures were truthful, but they could be manipulated to give the impression that their performance was better than it really was. The result was that as a consumer, it was difficult to compare specs between makes because they weren't based on a standard measurement.
What the new rule did was require each manufacturer to include the specs measured across a given frequency range into a standard load with both channels driven. As I recall there is also a set time period that these specs must be maintained. They were still free to publish their other measurements as long as the standard was included. There was some merit to some of these ratings such as 'music power' which gave some idea of the amount of reserve power that was available for peak transients.
After the 'Power Wars' died down, most makes seemed to be content to just publish the standard ratings. With the advent of BPC, it does appear that they are tending to advertise the non-standard specs more and more. AFAIK they are still required to provide the RMS rating, but it may take some effort to locate buried in fine print.
What the new rule did was require each manufacturer to include the specs measured across a given frequency range into a standard load with both channels driven. As I recall there is also a set time period that these specs must be maintained. They were still free to publish their other measurements as long as the standard was included. There was some merit to some of these ratings such as 'music power' which gave some idea of the amount of reserve power that was available for peak transients.
After the 'Power Wars' died down, most makes seemed to be content to just publish the standard ratings. With the advent of BPC, it does appear that they are tending to advertise the non-standard specs more and more. AFAIK they are still required to provide the RMS rating, but it may take some effort to locate buried in fine print.
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ferninando
Lunatic Member
the watts spec'd by the mfr were what the mfr could guarantee the unit to produce under the IHF power rating regulations. so believe the specs as a minimum, but more is icing on the kake.
