quick question about my kenwood kr-7050

Greetings ak'ers.


when I had the cover off I noticed this big boy has 4 output transistors in it. 2 are green and 2 are black.

does this mean it can drive 80 wpc into all 4 channels, or does it get halved when both sets of speakers are on?

I dont have the numbers handy, this is sort of a last minute "hmm, I wonder" kind of thing.


oh, one last thing while im thinking about it..

I kinda understand what the dc coupled button does..

but what does the FM 25 µs button do (near the fm muting button)

Thanks in advance

Output power is divided between the speakers you connect according to their impedance. If the unit is 80WPC, that's how much you have to go around. If the A and B speaker select puts the speakers in parallel when both are selected, the combination impedance is probably low enough to squeeze a few more watts out of the unit, but this puts a strain on the receiver (how much of a strain depends on the speakers).

The 25µS switch was for Dolby FM decoding. Not an issue nowadays.

ok, well if it puts it at 4ohm's of output power that would be fine.. it does 160 @ 4 and its 4 ohm stable so that will be just fine;/