way to disable amp section of 3802? (1 Viewer)

[Yoon Lee]

Since I got Rotel power amp, my 3802 is acting as pre/pro only. But, its amp section is doing the job. Is there a way to disable amp section? I look through the manual, but couldn't find a switch for it.

 

[Selden Ball]

There's no switch because you don't need to turn them off.

As long as you don't connect a speaker to a particular output channel on the receiver, no current can flow through that section of the amplifier circuitry. Power = current x voltage. No current = no power.

I hope this clarifies things a little.

 

[Jan H]

Yoon,

just connect the Denon's preouts (using an interconnect) to the Rotel and the amp section of the receiver will be bypassed. JH

 

[Yoon Lee]

BTW, then, my receiver getting warm does not mean my receiver's power amp section in action?

 

[Jan H]

No, mine gets warm, too. Denons run warm even when the amp section is deactivated. Maybe you have it an enclosed area?

 

[Mike_A]

selden, there's still a bias current on the output transistors, which is what makes the amp get warm with nothing connected. depending on the amplifier class, this may be a significant amount.

as far as i know, there's no way to turn the amp off still. having the amp on shouldn't hurt anything, but it will waste electricity and generate heat.

 

[Kevin. W]

Yoon, what amp did you add to your setup?

Kevin

 

[Yoon Lee]

So Mike, it's gonna use as much electricity as it was driving my speakers?

Kevin, I've got Rotel 1075.

 

[JohnSC]

Good choice. I have an 1075 also. I am very impressed with it.

 

[Mike_A]

Yoon, it won't use as much electricity (notice it doesn't get as hot), but it will use some (quite a bit most likely).