Alembic Guitars Club

Alembic products => Owning an Alembic => Troubleshooting => Topic started by: HipUncle on November 06, 2023, 01:24:44 PM

Title: newish Brown Bass developed loud hiss
Post by: HipUncle on November 06, 2023, 01:24:44 PM
My BB, that I bought new in Feb 2020, recently developed a loud hiss. Turning down the filter has no effect, but turning down the volume does. The battery is good. Not sure if there's anything else I can do. The bass should still be under warranty.

How do I initiate a warranty claim? Also, I'm (relatively) local in San Francisco, can drop the bass off in person.

-George
Title: Re: newish Brown Bass developed loud hiss
Post by: pauldo on November 06, 2023, 01:44:30 PM
George,
Try exercising the pots.   Rotate the volume knob fully back and forth at least 50 times and see if that helps.
They are self cleaning and exercising them can often cure undesirable noise. 

Wouldn’t hurt to do that with all the knobs if the bass hasn’t been played in awhile or if it has been in ‘dirty’ environments.

Let us know how that works.
Title: Re: newish Brown Bass developed loud hiss
Post by: HipUncle on November 06, 2023, 02:41:21 PM
I tried the pot-rotating approach, to no effect.
Title: Re: newish Brown Bass developed loud hiss
Post by: lbpesq on November 06, 2023, 03:23:50 PM
Just to check the easy stuff first, have you tried the bass with a different amp?  A different cable?

Bill, tgo
Title: Re: newish Brown Bass developed loud hiss
Post by: HipUncle on November 06, 2023, 03:35:41 PM
I'm going direct into an audio interface, not an amp. And yes, I tried a different cable, same result. Also, I have another Alembic bass which is dead silent regardless of cable. So it's definitely the Brown Bass at issue here.
Title: Re: newish Brown Bass developed loud hiss
Post by: lbpesq on November 06, 2023, 05:00:07 PM
Have tried the bass into a different input?  Anything other than your audio interface?  I had an Alembic guitar that just wouldn’t get along with my Mesa amp.   The guitar was fine into anything else, and the Mesa was fine with any other guitar.

Bill, tgo
Title: Re: newish Brown Bass developed loud hiss
Post by: mica on November 06, 2023, 06:50:32 PM
We can be called at 707-523-2611 or you can email me to schedule a time to check out your bass.
Title: Re: newish Brown Bass developed loud hiss
Post by: HipUncle on November 07, 2023, 11:30:44 AM
Thanks Mica, made an appointment for Friday.