Trade-ins are welcome towards any purchase. We will accept trades worth up to 25% off the advertised price OR sale price of an item.

These two features are included on all amplifiers rated 30 watts and up. They were optional not long ago.

Variable feedback: Makes it possible to get the most performance out of your speakers by precisely adjusting the feedback circuit to your speaker's needs. An exact match dramatically improves system performance.

Tunable Biasing: Find the operational sweet spot of your output tubes quickly and easily without the use of a volt meter. Our approach makes traditional DC biasing obsolete because it is so easy to use.

Both features are as easy to use as a volume control and allow our amplifiers to perfectly integrate into an existing system.

Questions are always welcome!