Help K&K Meridian mic won't work with Bose L1c

rmsstrider · #1 10-15-2017, 08:01 AM

I am perplexed. My Meridian condenser mic works fine with my Roland Ac-33, but I tried it both direct to my Bose L1 compact and also through my Rcf mixer to the Bose and I get no signal. Any ideas?

philjs · #2 10-15-2017, 08:51 AM

Quote:

Originally Posted by rmsstrider

I am perplexed. My Meridian condenser mic works fine with my Roland Ac-33, but I tried it both direct to my Bose L1 compact and also through my Rcf mixer to the Bose and I get no signal. Any ideas?

The Meridian needs 5v DC to power the microphone so you need a K&K preamp between the mic and a mixer (which typically provide 12, 24 or 48v phantom power) or the Bose compact, which I believe, offers no phantom power at all. Does the AC-33 provide power to the mic?

Phil

rmsstrider · #3 10-15-2017, 09:45 AM

Quote:

Originally Posted by philjs

The Meridian needs 5v DC to power the microphone so you need a K&K preamp between the mic and a mixer (which typically provide 12, 24 or 48v phantom power) or the Bose compact, which I believe, offers no phantom power at all. Does the AC-33 provide power to the mic?

Phil

I am using the K&K silver bullet 9v preamp. Only works on the Roland.

philjs · #4 10-15-2017, 06:49 PM

Quote:

Originally Posted by rmsstrider

I am using the K&K silver bullet 9v preamp. Only works on the Roland.

Which version of the silver bullet preamp do you have (I've seen them with either 1/4" or XLR outs)?

Phil

fitness1 · #5 10-15-2017, 06:55 PM

Quote:

Originally Posted by rmsstrider

I am using the K&K silver bullet 9v preamp. Only works on the Roland.

a 9v preamp doesn't necessarily provide phantom - my guess is your Roland probably has 15v phantom and the Bose does not.

Just checked the manual on the AC33 - does not provide phantom.

K&K site says the SB preamp supplies 5v and that's what the Meridian requires....

Hmm.....

rmsstrider · #6 10-16-2017, 05:22 AM

Quote:

Originally Posted by philjs

Which version of the silver bullet preamp do you have (I've seen them with either 1/4" or XLR outs)?

Phil

1/4". This is very perplexing. I see no reason for it not to work. I tried switching cables, and still nothing. I plugged into my Roland and perfect signal, unplug that cable and plug in direct to the Bose and nothing!

fitness1 · #7 10-16-2017, 07:28 AM

Quote:

Originally Posted by rmsstrider

1/4". This is very perplexing. I see no reason for it not to work. I tried switching cables, and still nothing. I plugged into my Roland and perfect signal, unplug that cable and plug in direct to the Bose and nothing!

the next step in troubleshooting would be to check that input on the Bose (use another source)

rmsstrider · #8 10-16-2017, 09:16 AM

I think i have found the problem. I called k&K to ask why this is happening. I was told that the preamp needs a mono cable . I had been using a stereo cable. They explained to me that some amps will make the third ring a ground, which is probably happening on the Roland and that is why the stereo cable is working for that amp. The Bose probably does not do that, so if i switch to a mono cable i should be all set. Will try tonight.