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Herbie's Audio Lab's Guitar Amp Ultrasonic 30 Damping Instrument
Tube Accessories by Herbie's Audio Lab
Our pricing for this product is the "MAP Pricing." This means that the prices shown here are the "minimum advertised prices" permitted by the manufacturer. Because these are already the lowest prices possible, the additional incentives usually available under "Frequent Flyer" program do not apply to this item.
Fits narrow, straight-sided octal tubes and all tubes approximately 1-1/8" to 1-1/4" diameter (28mm to 32mm), including 12J5/GT, 12SL7/GT, 12SN7/GT, 3CM, 5691, 5692, "slim" 5AR4 (G.E.), 5Y3, 5Y3GT, "wide" 5Z4, 6106, 6AH4, 6AU5, 6BL7, 6DN7, 6EA7, 6EM6, 6EM7, 6EW7, straight-sided 6F6G, 6FY7, 6H4GT, "slim" 6L6, 6N8P, 6N9P, 6SF5-GT (glass tube), 6SL7, 6SN7, 6SN7GT-series (6SN7GT, 6SN7GTA, 6SN7GTB, 6SN7WGT, 6SN7WGTA), 6V6, 6X5G/GT/WGT, 6Y6, 7355, C3G, C3M, "narrow" EL34 (E-H, Telefunken, SED "Winged C," Svetlana), GZ30, PL504, VT-231.*
Guitar amplifiers, especially combo amps, are torture chambers to vacuum tube microphonics. Herbie's Guitar Amp UltraSonic Damping Instruments feature extra-soft, extra-beefy isolation pads for extra vibration control. Guitar Amp UltraSonics eliminate tube rattle, tube whistling, and microphonic oscillation that are sometimes too severe for standard UltraSonics to handle.
These are superb damping instruments also for home audio, delivering pinpoint imaging and detail, outstanding transparency and sense of "air," with highly punctual dynamics.