Does this amp automatically power down if there is no audio signal?
375160
It stays on Because its powered by a 12 volt plug. But just does not output any audio. I wouldn't recommend buying this amp. You should try the plye brand of mini amps
1173591
The red light should be on whenever the amplifier is plugged in. The manufacturer should have a way to troubleshoot (instructions, website, customer service) to figure out what's wrong. Saludos
1280669
No. It will power down every time in 90 sec. automatically.It works great for me
365257
No power need to use this device. - BUT I am not sure if it will "pass through" power for a pre-amp. I would guess yes, but am not sure.
1255130
Eric, Sorry it took so long to get back to you. I have this unit on a bike trailer for synchronized to music Xmas lights. I finially got the bike set up yesterday to check it out but couldn't get the unit to work. I installed my old amp to get the music to work. From what I remember last year, the amp starts playing music when power is turned on if the power switch is already turned on. - Mike
1238270
If what you're asking is for a means to power up/down the amp remotely (automatically), yes it does.
1906583
No. This amp cuts off all signal if the power to it does not work.This is an issue for people with computer-based DVRs which they put on UPS devices. The computer and tuner continue to work, but the antenna input is dead.
921725
Yes, it does. It also has an auto-shut-off feature so that if the audio source (say, a TV or DVD) becomes quiet for more than a half hour or so, the receiver will turn itself off. Very handy when I leave the office with Pandora playing and forget to turn off the receiver!
35615
No, it has a manual on/off button in the back. You won't hear it if the Yamaha receiver is off, since there isno input, but the power stays on unless you manually turn it off.
832883
The unit does not need power. It plugs directly into the midi port of a peavy vip vypyr amp. It does not make or cause any noise. Nice device.
1863836
The display powers off after a few minutes but I think the amp stays powered up. You can turn it off manually. The unit performs well. Pulls in many more stations than the original amp in my Winnebago.
2180864
I have two of these and the auto on-off works fine. Obviously there is a threshold signal that has to be met to turn the unit on and off, so if the signal is very weak, it might not turn on when you want it to. I haven't had this problem, but I can see where some might. A suggestion to try if this is a problem: increase the gain for your subwoofer channel in your receiver, and adjust your gain down correspondingly on the back of the sub. Then it will be getting a stronger signal that might help to trigger the auto-on circuit more quickly.
758738
Yes, It has a red light that shows it is turned on, and the power button turns the amp off.
1138810
No is the short answer, if anything it would probably be less power generating the amplifier.
1238272
Not when I got this amp. You have to manual adjust settings on the amp itself
1060164
Yes, indeed it does. Most of the time my volume is high enough so I can actually hear it switch off. I've never had it fail.
57482
It is switched but is on when the unit is on standby: it only goes off when the 790 is totally turned off. So, if you use the remote, a device plugged into it will not be turned off when you turn the amp off remotely.