Dumb lo-fi question.


I have an old (1980) Toshiba receiver that I use down at my cabin. Have been pondering a slow....very slow...upgrade path of that lo-fi system and I have a question. The receiver is rated at 25 wpc. It has two sets of left and right speaker outputs. In other words it will drive 4 speakers. Does that mean it will send 25 watts to each of the four speakers or 12.5 watts to each of the four speakers?
n80

Showing 7 responses by n80

I ran across a review of the old Toshiba (SA-2500) that I have. It is a contemporary review and says a lot of good things about this receiver. 

http://www.hifi-classic.net/review/toshiba-sa-2500-322.html
I guess a better way to phrase my question is did these old receivers ever come with two separate amps inside...one for speakers A and one for speakers B. I assume the answer is no.....but it would have been a neat feature.
glupson, good catch. I never noticed that. My only real interest in this was possibly putting a couple of small towers in the middle of the room and my existing Bose 2.2s on the flanks. Totally unnecessary for a room that small but just a thought. Given the limitations of the receiver I have no intention of doing that now.

As a side note...I mentioned this in another thread...a while back several of the pots would cause static and distortion when turned, particularly the volume and I was about to toss it when someone on another web site mentioned a spray for pots and terminals and such. I bought some and opened up the receiver and sprayed the various controls and now everything works perfectly. The only thing that does not function is the tiny light on the channel slider so to change radio stations you have to look very closely or get a flashlight out. The inside is pristine. A miracle since this thing went to college with me in the balmy south in rooms with no A/C for 4 years.
organicsound, you mention bi-wiring one set of speakers by using A+B.

I just put in an offer on a set of low end Polk Audio towers with have double connectors on the back and claim to have a separate crossover for the two woofers (that they call subwoofers) while there is another crossover for the two mids and the tweeter. They are 8 ohm speakers.

On such low end speakers and with my old receiver is there any chance that bi-wiring this way would provide any benefit?

I'm assuming that this would not put any additional strain on the receiver?


To complete this thread, I did get the used Polk Audio Monitor 70s to replace my old Bose 2.2s. Got the Polks for $180, near mint condition.

I’m really amazed how well this old receiver drives these large speakers which sound great for Polk’s lower end line. Of course they sound way better than the Bose. Now I will enjoy listening to music down at the cabin a lot more.

But, I have no plans to run them and the Bose at the same time. However, I probably will keep the Bose down there and put them on the porch when the weather is nice.