My X300a's do not go into standby mode when not in use. Thus, the green light stays on and the speakers stay fairly warm. Is there a fix? Thanks.
1249922
Robert, the green light is intendedtoROBERT, the green light in Kef x300A is intended to indicate that it is dully connected to the right speaker as it should. There is nothing wrong with your speakers.
1249923
You need to go into the bios of your PC and enable ErP(S5) and disable USB charging.
1271648
I have two of these speakers. The first one I bought stays on all the time. The second one turns itself off after awhile. No idea why.
1824848
Mine turns off after approx 20 mins of no input, no matter whether running on battery or plugged in, and no matter whether on Bluetooth or wired input. It must then be turned back on with the power switch. There is no way to defeat this, and I verified with JBL/Harmon Customer Support that this "Standby mode" is normal behavior. This is NOT mentioned in the skimpy user manual provided, and is completely UNsatisfactory for my desired use. It's getting returned, unfortunately.
1547190
My refurbished unit (not brand new) goes into standby mode periodically if the volume is set to 0db or higher. It may play for about 30 seconds then powers down (standby mode). YPAO detects all speakers. I am convinced that I have properly connected all speakers without any "shorts". I sent the unit back for replacement. Yes I am disappointed, also.
379300
I have the same thing here. It's normal for most powered speakers with an external power brick to have some audible sound when the transformer cuts to standby.
5794
If by "standby mode" you mean do they go into a state of "sleep" if they have not received a signal for a certain amount of time, that is true. They will shut down if they don't receive a signal for a period of time.
199995
I just leave mine ON all the time. I don't think it has a 'standby' mode per se - at least I don't think it does - but doesn't seem to matter.
1286889
Have you updated to windows 8.1? If so, I'm having a similar problem where the brightness controls don't work coming out of standby. Solutions are not enticing: refresh the system if you can. Has it always done this? What are the conditions that lead to it? Not that I have answers, but more specifics could help your search.
758737
I ran a wire from my led switch to the amp that way the amp is only on when my lights are; The lights are a good reminder to shut it off. I'm not sure if the was a light or not on the amp but i know it still pulled power when speakers were "off"
924282
I've had that problem myself but it seems sporadic. It can be frustrating . It almost seems it has a warm up period. After I play music for a while , it seems to stop doing this. I'm not the only one saying this . Some of the people who gave reviews on Amazon have this same problem . So it seems not to be a defect. If it is , there are quite a few defective speakers out there.
88020
When you turn it off it stays in standby mode. The only buttons on console are- ch ^ ch. down and power.
1780356
Yep! Once it reaches the temp you set it for it goes into a standby mode, it doesn't run constantly.
905645
My apologies for the long time to respond to this, this is the first time I get asked a question through Amazon. Anyways the power supply worked great for me but the problem could be from the power source or the speakers. So try to test your speaker with the same power supply at another location in your house or a friends house maybe with a portable mp3 player. Also if someone else has the same speakers borrow the power adapter or swap your friend's speakers from the monitor just to test it.
1147025
There is an on off switch. If you leave it "on" it is connected to the network and you can connect to it any time without delay. You can power it down, in which case you will have to go through a power up cycle the next time you use the speaker. You have to turn the speaker on and off at the physical unit (or within its IR remote range if you use that). The speaker does not have a standby mode, but I do not see any issue with leaving it on all the time.
770894
You could try looking inside the speakers (specifically the one with the volume knob -- that was where my problem was) and see if the capacitors are the problem. See my previous review of these speakers for more info (http://www.amazon.com/review/R33FG0Y92298KH/ref=cm_cr_rdp_perm)If you had these plugged directly into a wall socket at time of power outage (and power restart) then maybe more stuff is fried. Note... in my case the buzzing sound was not caused by a power outage or from heat, but just from crappy capacitors in the speaker. They have been working like new for almost a year now after the fix. Good luck! You could try looking inside the speakers (specifically the one with the volume knob -- that was where my problem was) and see if the capacitors are the problem. See my previous review of these speakers for more info (http://www.amazon.com/review/R33FG0Y92298KH/ref=cm_cr_rdp_perm)If you had these plugged directly into a wall socket at time of power outage (and power restart) then maybe more stuff is fried. Note... in my case the buzzing sound was not caused by a power outage or from heat, but just from crappy capacitors in the speaker. They have been working... » Read More You could try looking inside the speakers (specifically the one with the volume knob -- that was where my problem was) and see if the capacitors are the problem. See my previous review of these speakers for more info (http://www.amazon.com/review/R33FG0Y92298KH/ref=cm_cr_rdp_perm)If you had these plugged directly into a wall socket at time of power outage (and power restart) then maybe more stuff is fried. Note... in my case the buzzing sound was not caused by a power outage or from heat, but just from crappy capacitors in the speaker. They have been working like new for almost a year now after the fix. Good luck! « Show Less
1738954
This exact same thing happened to me, and using them with my computer they do power down after a short while with no sound activity. There is then a delay once a signal is sent. Can you please tell me what ever came of this or what Amazon said when you contacted them?
1844769
The remote (http://audioengineusa.com/Store/Accessories/A5-plus-remote) controls volume, and can mute the speakers and put them to sleep. I assume that the latter mode means the amp is put in standby, rather than simply silencing the output.