The Acoustic Guitar Forum

The Acoustic Guitar Forum (https://www.acousticguitarforum.com/forums/index.php)
-   Acoustic Amplification (https://www.acousticguitarforum.com/forums/forumdisplay.php?f=16)
-   -   Help! (https://www.acousticguitarforum.com/forums/showthread.php?t=211837)

pastorchuck 03-25-2011 05:29 PM

Help With Lr Baggs Anthem System Connect To Lr Baggs A-ref Amplifier - Problems
 
I have a "new to me" Larrivee LCJ10-K (all Koa) built in 1998. It came with an older Fishman natural passive pick up. I just had an LR Baggs Anthem installed (the full Anthem, not the SL).

I am using an LR Baggs Acoustic Reference Amplifier that I just recently purchased.

After I got the Larrivee back from my guitar tech, with the Anthem system installed, I tried it out with the LR Baggs amplifier - and had some problems. When I plugged the guitar into the amp, I got a low hum - like a "bass rolloff". I tried my other guitars in the amp, using the same cable (Monster Acoustic cable) and there is NO HUM. The odd thing is that if I touched the endpin of the guitar - the hum would stop. Also, if I touched the metal handle of the amp, the hum would stop.

i called LR Baggs and they thought there was a problem with the Anthem system - so they sent me a complete new system. So, back to the tech who uninstalled the old Anthem system and reinstalled the new Anthem system - and THE PROBLEM has not changed!

It is hard to describe in words what I am talking about - but when all the other guitars are plugged in - there is no noise, no hum. When I plug in the Larrivee with Anthem system, there is this low hum- and it is frustrating - especially when both the Anthem and the Acoustic Reference Amplifier are pretty expensive and there should not be this kind of issue.

Anyone out there have any suggestions, any ideas? Since this is the second Anthem system, I don't think that is the issue. The amp is brand new as well.
I am frustrated.

http://www.lrbaggs.com/anthem/

http://lrbaggs.com/amp/

jseth 03-25-2011 08:24 PM

sounds like some sort of ground loop problem to me, although I haven't used either item. It's probably coming from the amp's input jack. Have you tried the guitar (w/the Anthem) through another amp/PA system? That may be the next step - if it doesn't do that low freq hum, then you know it's something with the amplifier/Anthem combo, somehow...

Always a drag to have problems, ESPECIALLY with new stuff. Hope you can get it figured out and fixed...

I just remembered something that might be relevant. When I first got my Taylor T-5, I kept getting a lot of hum/buzz from just the bridge pick-up, not so noticeable with the 'board PU... this, through the amplifiers that work silently with all my other electrics. Turned out, all I had to do was flip the ground switch and the T-5 was quiet as a mouse! So, try flipping your ground switch and see what happens!

Good luck! Report back, please...

pastorchuck 03-26-2011 01:25 PM

Thanks Seth!

Mah ' Crub 03-26-2011 07:02 PM

I agree ...it is, or sounds like a ground problem. Have a similar problem with my pick up on my fiddle...humed til I touched it....still having that problem actually, thats why I want to make some electric violins.
You could run a ground wire to yourself, but it's a pain when it really should not be doing that. Try turning your plug over... sometimes that works.

Mah ' Crub


All times are GMT -6. The time now is 05:41 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Copyright ©2000 - 2022, The Acoustic Guitar Forum

vB Ad Management by =RedTyger=