grab wrote:Crackles and glitches should *NOT* be a feature of a compressor or limiter. It'll sound odd (and probably unpleasant) when you hit the limit, but it really shouldn't crackle.
I thought that this was more the sort of thing that would happen when the mixer and the amp is pushed all the way up (or at least almost all the way up) as was the case prior to the landlord changing the limits for the compressor/limiter. Another issue with the sound is the individual channels fading in and out or complete sound loss. Because of this factor i was thinking the house TMIX mixer was probably guilty of contributing a far bit to the problems as well (as individual channels were affected seemingly independant of each other).
grab wrote:I wonder whether something else is screwed up? It's not uncommon for PAs to be set up as mono, so you may have a single dodgy cable somewhere (possibly in the locked box) which is causing a problem. Or more than one. The XLRs running into the locked box are not going to be having an easy life, for sure.
Well the system seems to be working much better for the other musicians that play there (they have their own mixers). If the compressor is not set too high then the TMIX housemixer seems to manage to get through the night without any serious problems too. The cable connections between the TMIX mixer on stage and the hardwired cables to the bar were recently tested and changed. Could you please explain why the cables would be having a hard time - specifically those plugged into the compressor?
Compressors often have jack inputs too. I could well imagine your landlord putting an XLR-to-mono-jack adaptor on the end of the cable, and whether this works or not will entirely depend on what the mixer does with its outputs.
OK, i can see the landlord messing up the cabling, but I'm pretty sure all the mixers i tried output a balanced line level signal through the main XLR outputs. What sort of difference would there be between what the mixers do with their outputs such that the ZED 10 is the odd one out ?
Also, there are two xlr and two jack inputs on stage that go to the bar. Im pretty sure that the jacks are not plugged into anything at the bar (and are left dangling) so I'm also pretty sure that the other end of the XLR is still XLR... but I will check...
I'd go in there sometime other than a gig night, get the landlord to open up the box with the compressor/EQ/amps, and go through your standard fault-finding. If you can get there during the day, that's usually a good time for landlords. Put an MP3 through your mixer, plug it in at each point in the audio chain (working backwards from the amps), and see whether it works.
I will definitely have a closer look, though i am reticent to delve in to deep as the setup behind the bar is complicated, difficult to get to and Im a little scared that I'll change something which will mess up the sound and I won't be able to fix it. There are two amps, a compressor/limiter, an eq and a big digital box to dial in different the inputs via a code -stage, tv, mp3 player, dvd player, computer... - and Im not sure what order they're patched together.
My standard fault finding is pretty much reliant on my common sense crossed with info i got from here or mixer manuals/books... Does anyone have any good probllem solving resoures/checklists to make sure I don't miss something silly? I'll also wait and see where this thread goes a bit before marching down there.
Finally, there is also the factor that i have no speakers or system to test the mixer independantly of this venue and my concern is also for my new mixer which didn't just work when needed - A lot of venues i play in seem to have terrible sound setups (as they all rely on dodgy two-bit cowboy sound people to set them up) and I can't go around fixing everyones sound when i don't know what I'm doing either. Also, the landlord i deal with here no very little, they are scared to change anything and they
At least this whole experience is teaching me a whole lot about sound systems and setting them up!! Thanks for all your input Grab!