- Goodtone Amplification - GoodTone.com
Everything you need to shape your tone, nothing you donít need. A classic tube design with the flexibility to control those things which have a meaningful effect on tone. With the flip of a switch you can change the power output tubes from cathode bias for a lower powered harmonically rich tone like an early Tweed amplifier to fixed bias for a cleaner higher power output like a blackface amplifier. Also, there is a control for the amount of frequency contoured feedback, traditionally labeled presence, which adjusts the amount of output signal fed back to the power circuit input. This has the effect of producing a very even low noise signal when maximized and a more open responsive signal when minimized. On the back panel is an adjustment for tube bias with jacks for monitoring the actual in circuit current allowing for precise adjustment of power tube bias and also for adjusting for many popular output tubes.