Distortion: Both tested less than 0.1% THD at 8 Watts. Maximum power: 18 Watts (into 8 Ohms) KT66. Noise and hum level: -75dB (2 mV).
These results would not be possible unless all components are working exactly as they should. One photo shows the amplifier at the point of clipping this is to show the symmetry of the output valves. Its no exaggeration that these legendary amplifiers helped to define the meaning of "domestic hi fi" from the early 1950s.Manufactured without any change up the late 1960s. In good working order these amplifiers are capable of excellent performance with modern sources such as CD, vinyl, streaming etc with virtually any pre-amplifier. In most situations they will work with a "Passive" pre-amp.
With an output of 18 Watts they can provide a high sound level with speakers of 90dB or more in a medium sized room. They are an ideal upgrade for someone looking for a warmer more musical sound, less synthetic than many solid state amplifiers. The supplied valve set will be a new set of matched SG KT66s, JJ EF86d and SG GZ34 (5AR4). These amplifiers have been restored without any circuit changes exactly as originally manufactured. However there are a couple of topics worthy of discussion.We can do this modification if required. The standard setting is 1.6V for full output. We can adjust this for a lower figure if required. Although designed for the KT66 a small modification will allow the use of either without any disadvantage. The more efficient EL34 allows an output of 26 Watts. The slight increase in in heater current is offset by not powering a pre-amp or tuner. The bottom plate has four metal studs which form the feet, This may not be ideal for your furniture. We can supply rubber feet at no extra charge. The paintwork of this pair is described as "good" for their age but they will inevitably have age related marks, see photo's.
Six months guarantee including valves is provided on a "return to base" basis. You are welcome to ask any questions. They may be auditioned at our premeses at LE2 in Leicester. They will be well packed with the valves removed.Should you have a pair of these amplifiers we are able to service and test most vintage valve amplifiers. This item is in the category "Sound & Vision\Vintage Sound & Vision\Amplifiers & Tube Amps". The seller is "iconaudio" and is located in this country: GB. This item can be shipped to United Kingdom.