Guitar amp power attenuator
Posted: Sat Apr 30, 2022 11:48 pm
Over in this thread we talked about attenuators: viewtopic.php?f=14&t=571
I finally got around to making one a few weeks ago. It uses non-inductive high power resistors. There are actually two separate attenuators in the housing - one for 8 Ohms, and one for 16 Ohms. They can be cascaded to give four levels of attenuation.
Initial tests are good. No discernable loss of tone.
On the "HIGH" setting it drops a 60W amp to 10W.
On the "LOW" setting it drops a 60W amp to 2W.
Can be used with amps up to 100W.
Total parts cost about USD$150. Time to make ... about 8 hours
(the rectangular cut-outs for the switches were a bastard)
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I finally got around to making one a few weeks ago. It uses non-inductive high power resistors. There are actually two separate attenuators in the housing - one for 8 Ohms, and one for 16 Ohms. They can be cascaded to give four levels of attenuation.
Initial tests are good. No discernable loss of tone.
On the "HIGH" setting it drops a 60W amp to 10W.
On the "LOW" setting it drops a 60W amp to 2W.
Can be used with amps up to 100W.
Total parts cost about USD$150. Time to make ... about 8 hours
(the rectangular cut-outs for the switches were a bastard).
- 20220430_170157.jpg (243.98 KiB) Viewed 4486 times
- 20220430_173056.jpg (198.83 KiB) Viewed 4486 times
Great work!