Originally posted by KC:
I have reviewed the gain staging notes from Bose. I did forget to mention that I am using preset 0, as everything is going to Yamaha 01V, then to PAS. So, I am unable to select the PAS preset for my EV457 mic.
Try the EV457 mic direct into Channel 1 or 2 with the appropriate preset. If you like the sound better, just leave it running separate from the mixer.
- Or -
you can still use the mixer but route the mic to one of the 4 busses and then route that buss to Channel 1 or 2.
I am on the verge of feedback just in basement and dial it down to avoid.
Unless you have a really big basement, you are probably more prone to feedback in that environment than you will be at a gig. The walls (and the reflections) are a lot closer than they will be at a gig.
But at gig I know I'll need more gain on the mic channel. I am having a difficult time zeroing in on the culprit freq with the 01V channel EQ, though I think the 01V is pretty versatile in that respect ( narrowing the Q, then sweeping to find problem freq. But at that point, the freq exterminator ought to be able to exact a thinner band to nail the problem. though I'd rather not add more to the chain...haven't tried it yet though.
That's a lot of work for a problem that may go away when you get out to a gig.
question2: I noticed the Bose documentation recommends un-hooking the B1's if you choose to use external bass amp. does this mean trouble if you continue to run the B1 bass mods AND an external amp and spkr for bass?
It could well be there but, I don't remember reading that in the documentation. There is mention that removing the B1 changes the frequency response with the L1. If you have something connected to the Bass Line Out, the EQ for the L1 should be the same as when you are using a B1.
I don't think there is any reason to disconnect the B1s if you are going to be using the Bass Line Out.