Cuttin out on active Speaker when using the mic?

[lazersounds]

I have been using x2 Lem T300 active speakers for the last few years with no problems at all, until last night that is :(

Firstly It was very stuffy and warm in the function room I was working in and forehead was visably sweating to give you a idea of the temperature in case this could have been the issue, anyways

Got to around 10pm, Picked up Mic to make a announcment and half way through one speaker just lost volume, it was still playing music but at about 30db if that. I tried switching if off for a minute, then back on but still the same, I turned the volume knob down to 0 (6o'clock) and right round to max and it started up again (phew), no issues for the next half hour or so of just music.

Used the mic again around 10.30 and the same thing happens, did the same with the volume control and it fires up again.

Did'nt use the mic until the end of the evening and all the time was just playing music, the speaker was fine. Just seems to fail half way through a sentence when speaking through the mic!

I run the volume control at 12 on the speakers and the mixer was outputting at -3 peaking at 0 so was not pushing or clipping. The back of the speakers were quite warm but they are warm at every function after a few hours use so did'nt think anything of it.

Would anyone have any ideas what caused this? As i said it was just happening on one speaker, I'm hoping it was just the speaker not liking the heat or is something going wrong inside the amp/speaker?

Thank You

[CRAZY K]

Concentrate on the speaker and maybe the lead to the mixer and mixer/ channel itself.

Swap channels round and do the usual double checks.

If the heat affected it I would expect it to be a problem with music as well?

Try another mike just in case.

At least its not an intermittent fault which do your head in:daft:

Sounds like a job for the Disco Shop.

HTH

[Solitaire Events Ltd]

Are you sure you don't have a talk over switch on your mixer which is on?

[Corabar Entertainment]

Are you sure you don't have a talk over switch on your mixer which is on?Funnily enough, that's exactly what I was thinking when I read the OP, but didn't want to say anything in case I sounded daft! ...but now you've stuck your head above the parapet, I'll join you!

:lol:

[Solitaire Events Ltd]

Funnily enough, that's exactly what I was thinking when I read the OP, but didn't want to say anything in case I sounded daft! ...but now you've stuck your head above the parapet, I'll join you!

:lol:

It's happened to the best of us, trust me...:sj:

[lazersounds]

Are you sure you don't have a talk over switch on your mixer which is on?

Was the first thing I checked believe me, have tried a different xlr lead and a different mic this morning but still does it when just speaking through the mic, again just on the one speaker. :confused:

[CRAZY K]

Was the first thing I checked believe me, have tried a different xlr lead and a different mic this morning but still does it when just speaking through the mic, again just on the one speaker. :confused:

Try a diferent mixer as well.

Have you tried other channels on the existing mixer?

Otherwise sounds like onboard fault on the powered speaker.

[lazersounds]

i'll borrow a different mixer and give it a go and let you know if any different, thanks

[Excalibur]

I thought the talkover switch was a good call, I hadn't considered that myself. The thing that sprang tp my mind was that when using the mic, you often see the vu meters fly up, even though the mic doesn't sound as loud as when we're playing music. Is it possible that some form of protection circuit is cutting in when you use the mic? If that is the case, I'm sorry but I have no idea how to mend it.

[lazersounds]

I thought the talkover switch was a good call, I hadn't considered that myself. The thing that sprang tp my mind was that when using the mic, you often see the vu meters fly up, even though the mic doesn't sound as loud as when we're playing music. Is it possible that some form of protection circuit is cutting in when yopu use the mic? If that is the case, I'm sorry but I have no idea how to mend it.

I did wonder that as well, maybe the mic was booming as such causing a protection circuit to kick in, first time its ever done it, I don't consider myself to have a deep voice, more camp lol :daft::daft:

[SoundONE]

I would hazzard a guess it's a component on the mic preamp circuit when you use the mic a transistor being used in the preamp circuit is simply holding on. Should be an easy fault to find and repair because you can make it happen every time you use the mic. Suspect your going to need an electronics engineer, or local tv repair shop etc to sort that.

[Pe7e]

Have you tried swapping the XLR from one speaker to the other to see if the fault moves to the other speaker or stays with the channel, thus eliminating the speaker (or otherwise)

[lazersounds]

Have you tried swapping the XLR from one speaker to the other to see if the fault moves to the other speaker or stays with the channel, thus eliminating the speaker (or otherwise)

Yes have tried that, still the same speaker, hopefully its a simple fault that can be repaired at the tv repair shop

[hadyn]

I agree with soundone on this one
its the same with a lot of equipment and computers and stuff.
isolate and swap each piece of gear untill you narrow it down to the piece which is causing the problem and then if you cant manage the repair yourself
get some one else to look at it
mind you i had an rcf active speaker go down on me and it cost me 200.00 to get fixed

[JAMdisco]

mind you i had an rcf active speaker go down on me and it cost me 200.00 to get fixed

:zip: :zip: :zip: