Merz OTL 20 Stereo Output transformer-less amplifier
Limited edition amplifier offering massive output and clean clear sound only possible with the OTL designs.
Output: 75 watts @ 4 ohms both channels driven
100 watts @ 8 ohms both channels driven
Frequency Response: 10 Hz – 50 KHz
Input sensitivity: 1.75 VAC for full output
Input Impedance: 500K ohm
Power requirements: 110-125 VAC @ 60 Hz
Output tubes: 20 6AS7/6080 all tubes less than 100 hours use
Well-designed and configured amplifier with power coated aluminum chassis subdivided into two sections-power supply and amplifier sections. Multiple speaker and amp protection circuits. Easy bias adjustments.
Several improvements to the components have been made. This includes better capacitors in the gain stages, Fred diode bridges, and high purity input signal wire. Original barrier strip speaker connections have been replaced with the outstanding sounding Superior binding posts. Includes owner’s manual with schematics, and original packaging.
I am downsizing and will consider trades like a quality integrated amp or solid-state power amp.
Photos available on request
