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Audible Illusions Modulus 3A problems

I own an Audible Illusions Modulus 3A and it has the stepped attenuators. the right channel has started making very loud popping noises when changing settings. Once it is in a set static position it sounds fine. I used to be able to spray it with a cleaner and it would operate silently for a month or so but now it pops no matter what! I'm reluctant to send it back because I've heard horror stories about getting them back in ones own life time from the factory. Any suggestions ? Is this common? Any fixes? Is the factory the ONLY choice?
jothompson
jothompson OP
27 posts
 
I am sure it is the stepped attenuator. I have switched tons of amps into the system just to have fun
and the preamp, right channel, is consistently the culprit. It is a very loud and destructive sounding pop! The cleaning worked temporarily as mentioned by others.

I do love this preamp and after five years I retain the
original tubes. I've bought others brands to play with but the microphonics were horrible and am going to have to bite
the bullet and spend $100+ at AI or Kevin Deals to retube this.

I am hesitant to do all of this because I pre-paid for the preamp factory direct via my employeement and it took AI a year to deliver and at times I wasn't sure if it would ever show up.
preampnow
1 posts
 
I had exactly the same problem..changed out the tubes and the noise drastically was reduced...only problem is this Pre eats up tubes fairly quickly!
lyramax
3 posts
 

I just ran across this post and am curious if anyone else has come up with other solutions to the problem of stepped attenuators causing popping noises when turned.

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