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Quad 50E

Mono Block Power Amplifier

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Quad 50E


The Quad 50E is a single channel amplifier designed for Broadcast, Recording and other applications in the audio industry.

The amplifier is virtually proof against misuse and no harm can be caused by such factors as gross overload, continuous operating on hot circuits, heavy reactive loading, inadequate ventilation etc.

If misuse is such as to cause excessive heating, the maximum power will reduce as necessary, restoring automatically when more normal conditions prevail.

The standard of quality is of the highest order and with any complex input, distortion falling within the useful part of the audio range will not exceed a small fraction of one percent.

Overloading with any load will not significantly affect long time constants, ensuring immediate recovery and minimum distortion resulting from such overload.


Power output: 50W into 8Ω (mono)

Frequency response: 30Hz to 20kHz

Total harmonic distortion: 1%

Input sensitivity: 0.5V

Signal to noise ratio: 80dB

Speaker load impedance: 5.5Ω (minimum)

Dimensions: 120 x 159 x 324mm

Weight: 10.9kg



re: 50E

Dear members. Would any body be able to let me know what the primary winding specifications are for the Quad 50e output transformer. I need a rewind or new transformer. Quad can no longer help. I will be very grateful for any help given and thank you in advance.
Regards Western 91.

This website is not affiliated with or sponsored by Quad. To purchase 50E spares or accessories, please contact the company via their website or visit an authorised retailer.