Mcintosh 2301 tube amplifier, how much power used from the wall?


Curious if anyone has measured actual watts coming from the outlet to power the the 2301 mono amplifier?

Basically I'm interested to know what the power use is for purposes of calculating how much heat this amplifier gives off, ie btu.

It uses 8 kt88 tubes, which indicate a spec of around 40 W per tube, hoping this is right. Not sure how much these watts are used when amplifier is at moderate volume. The remaining six tubes on the amplifier power are smaller and have minimal power use

emergingsoul

@carlsbad2

Thanks for a great reply. Have you ever done biamping with tubes on the top drivers and ss for bass drivers? big challenge is finding a crossover device, and then hearing that if you use amplifiers from the same manufacturer, tube and ss, you can do it without this device. I don’t think this is really done very much but many people do it, it’s tough to find these people

 

I haven't done biamping and don't generallly think it is a good idea.  I have no problem with trying it but most try it and move back.

Your amp has plenty of power for just about any speaker.

The "rule of thumb" that you need an external crossover is not correct.  The internal crossovers will so the same job with 2 amps that they do with one. All you need is the ability to adjust levels to balance the 2 amps.  this can be done with a passive pre or just a volume control device on whichever amp needs to be turned down.