Attenuator for Fender Blues deluxe (with effects loop)

I've got the same knob and "audio level" face plate! Came off a stereo power amp from the mid 70's, can't remember which🤪 always saved it for something better than what I was working on at the time..
 
I have 2 solutions for attenuation for my 2 amps, when I need to keep the volume down:
  1. My trusty old THD UniValve has their own built-in THD attenuator, so I can use that with my standard guitar speaker cab for tube-goodness at low volume. (The Univalve can also use low-wattage power tubes, including a few NOS tube models that are surprisingly cheap.)
  2. My other amp is 15W and doesn't have an attenuator, so for it I built a second speaker cab with lower efficiency speakers - some good-quality audio full-range mid-range 5" speakers (not expensive, from Parts-Express). Guitar speakers typically produce 98-100dB per watt - i.e., very efficient! Audio speakers are generally much less efficient, the speaker I use is something like ~86dB/watt - so I can crank the amp and still not take the paint off the walls. And now I also use my PedalPCB UniBox speaker emulator in the effects loop, so it sounds like a great guitar cab...
 
You could also try building your own Attenuator, thinking about it myself. https://guitar.com/guides/diy-workshop/diy-workshop-build-your-own-attenuator/


 
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