Converts an AB to Class A and reduces power.
It converts an 8-pin socket allowing use of EL-84 power tubes. This converts class A/B amplifiers to Class A and reduces power. For a 100W amp, output will be lowered to about 40W. A typical 50W amp will be reduced to about 20-25W. Duet includes 2 adapters and 2 EL84 tubes.
These are used in pairs or quads, not individually. These are NOT for use in Class A amplifiers. For Class A amplifiers, use the 928, not the 928-PR.
They will reduce the load on your power transformer, and allow your amp to reach distortion with a nice AC-30 or EL-84 sound and feel at lower levels.
Dimensions - tube tip to amp chassis requires 4-1/4".
Country of origin: Slovakia
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Groove Tubes Substi-Tube 928-PR to EL84 Adapter and Tube Sets Features:
Groove Tubes Substi-Tube 928-PR to EL84 Adapter and Tube Sets Specifications:
Groove Tubes Substi-Tube 928-PR to EL84 Adapter and Tube Sets
90 day warranty on power tubes, includes replacement of whole set if one tube goes bad.
180 day warranty for preamp tubes.
3 year warranty on SubstiTubes and Solid State Rectifier.
Check with M-Audio for warranty on GT microphones.
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