This is our single-ended power amplifier using the ECL86 small power tube as the output section. Power supply use both choke and high grade capacitors as filtering . This amplifier can drive speakers with an efficiency above 88db/W, or it can be used as the second amp to drive the tweeter section of a bi-wireable speaker system.
For this low price you can hardly find anything in the market which sounds better than this amplifier.
This amplifier also equipped a switchable "HPF" high pass filter crossover network, when set to HPF position, any freq below 500Hz will be cut off in -6db/oct slope, which can greatly enhance the maximum undistorted output loudness when use in a bi-wireable speaker system. With this switch, the max. loudness level can be the same as a 50Wrms power amplifier.