My curiosity about receiver

[powxpa]

I have RXA810 receiver and use it as pre/pro. I connect it to xpa 2 and 5 throught preout.

Does any one know whether my receiver consume as much power as if I connect speakers straight from receiver (without using XPAs). In another word, I am wasting electricity because I use receiver as a pre/pro.

Help???

[wcparks]

How much electricity your reciever uses will depend on the load that it gets. You will have less load as a pre so less electricity being use by the reciever.

[Dark Ranger]

Aug 6, 2012 0:45:46 GMT -5 powxpa said:

I have RXA810 receiver and use it as pre/pro. I connect it to xpa 2 and 5 throught preout.

Does any one know whether my receiver consume as much power as if I connect speakers straight from receiver (without using XPAs). In another word, I am wasting electricity because I use receiver as a pre/pro.

Help???

Hi powxpa,

I looked up the specs for your particular Aventage model. Power consumption is around 400 watts nominal. However, you're not using the internal amplification so the AVR power requirements will be much lower. The AVR will draw only what it needs to operate. When idle, power draw will be very low. When you crank the music, it will demand more power from the circuit.

Another thing I looked for in the manual was to check if the internal amps could be switched off. I cannot think of many AVRs with this option and this particular Yamaha did not have it either (no surprise). Switching off the internal amps would definitely save on power consumption. Since that is not possible, the amps are basically idling and consuming a small amount of power in that idle state. No way around that, unfortunately. The good news is that your AVR will use less power in pre/pro mode than if you were also powering your speaker with the built-in amps. Then again, any gains made here are cancelled by the XPA amps.

If you have a Kill-A-Watt meter or something similar, you could check your approximate power consumption from the AVR. Honestly though, you've got two XPA amps running, so I'd be more concerned about power draw from those puppies rather than the AVR.

[powxpa]

Thanks.

Dark Ranger, u listed ur next purchase will be xpa 200 and xmc 1. what do u think the differences b/t xpa 200 and xpa 2 would be?

[garbulky]

The xpa-2 will have lots and lots of power. The xpa-200 is a setup up over the UPA-200 if that helps.

[powxpa]

Do u known when xpa 200 will come out? maybe 200 watts per channel?

[Dark Ranger]

The XPA-200 is announced and we're waiting for additional details on this product. Since it's a direct replacement for the UPA-2, I would hope its performance is at least as good as its predecessor.

As garbulky mentioned, the primary difference between the XPA-2 and the announced XPA-200 should be power handling capabilities and reserve current. In addition, the XPA-2 offers better control and dynamic headroom over most of Emotiva's other amps. Unless you're wanting to downsize (quite a few reasons exist for doing so), that XPA-2 amp of yours is worth hanging on to in my opinion.

In my case, I don't need the capabilities and features of the XPA-2 in my listening room, but wanted the next step up from a UPA-200. I think the XPA-200 will fill it nicely.

[fschris]

This is something that I have also wondered. I use my Yammy as a pre/pro as well. People say it will not consume a lot of power although it sure puts out a lot of heat for not doing much.

I have been reading about the Pioneer SC series and it has an option to turn off the internal amplification to save power and put off less heat. Has anyone tried this or should I ask in a new topic?

[garbulky]

fschris. I believe this is the answer your looking for. Your reciever may not necessarily consume very much power at idle.

Aug 6, 2012 1:13:19 GMT -5 wcparks said:

How much electricity your reciever uses will depend on the load that it gets. You will have less load as a pre so less electricity being use by the reciever.