2. amps-preamps
  3. 191984-194577

Audible Illusions Modulus 3A troubles

Just purchased a used Audible Illusions Modulus 3A preamp for my system but only getting very very faint sound when turned all the way up.  Plus the very very faint sound is very fuzzy as well. 

I popped off the top & re-seated the 4 tubes but that was no help.

My 2 amps are both rated at 50k ohms input sensitivity, so this is the right preamp for them at around 1.2k ohms output sensitivity, running a biamp configuration.  AI documentations confirms this.

I've tried each amp on its own, using both output RCAs on the preamp, to no avail.

How to tell what is wrong...looking into the return policy, but at least the shipment was insured.

Any ideas?

Thanks-Kevin

kevinshunt

Showing 4 responses by hgeifman

hgeifman
2,306 posts
 

+1, I also would return it. The unit is not working.

A common problem is with the tubes; they may need to be replaced with a new, high-quality set. Additionally, excessive noise or distortion might indicate a malfunction within the preamp itself. Further investigation into the preamp’s internal components may be necessary. I Suggest you return the unit. ASAP!

 

hgeifman
2,306 posts
 

 

+1, “Contacted them last Friday, hoping to hear back Monday, they are a reputable reseller out of CO”.

It is possible something broke during shipping. In any case, based on your post, the Audible Illusions Modulus 3A unit needs to be returned for a checkup.

hgeifman
2,306 posts
 

@kevinshunt, as per your post above, have you contacted the seller? What did they say? Please keep us posted.

hgeifman
2,306 posts
 

@kevinshunt, you should ask for a full credit refund on your Audible Illusions Modulus 3A preamp.  The preamp was preowned, and you have no clue else might go wrong. Sometimes you repair one thing and something else breaks.  Others on this Forum may have a different opinion but THIS is my opinion. 

I have heard that common issues with the Audible Illusions Modulus 3A preamp include problems with the tubes, which may need replacing with high-quality ones to prevent excessive noise or distortion.  

 

More to discover