"Is the amplifier switched off?, I don't hear any noise or hum"
OTL tube amplifiers with unique design made in Sweden.
"A tube amplifier that redefines what is possible in a push-pull design."
See review by Dick Olsher in Enjoy the Music
Due to our unique driver stage we have been able to reduce distortion by more than 10 times achieving <0.01% at 1W and <0.1% at 10W in our 25W design, (PA12).
By using active noise cancellation we reach a noise level better than 100dBA below max power.
Our OTL design allows for low idle power and high output power using only few tubes thereby improving reliability. We have not had one tube failure in any customer amplifier in more than 7 years of production, our prototype has been in use since 2004 without power tube replacement.
Our preamplifiers are equipped with a high performance stepped attenuator for volume control that offers excellent channel balance, much better than what is possible using potentiometers, see here for a technical description.
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