United Kingdom. EWA designs for cables and amplifiers, by Colin Wonfor.

All text and images copyright 2019 ABCaudio & Elsdon and Wonfor Audio

  • The Claymore


    EWA Claymore integrated amplifier, by Colin Wonfor.


    Vinyl input: MM & MC, Line input x 3, Pre-out, SECA headphone output.


    As with all EWA product, you have 30 days after delivery to use your product. You may return it (shipping is buyer's responsibility) for a full refund within this period.

    • Specification

      Built to UK voltage as standard. Can be set to operate elsewhere at manufacture.



      Inputs set for 70W output.

      Moving Coil

      Standard loading 100Ω - 470Ω with a loading capacitance 1000pF

      Input sensitivity is typically 360µV

      Frequency Response 5Hz – 100kHz ± 0.5dB

      Moving Magnet

      Standard loading 47kΩ with a loading capacitance 100pF

      Input sensitivity is typically 7.2mV

      Frequency Response 20Hz – 20kHz ± 0.5dB

      Aux Input

       Standard input for a line level device.

      Input sensitivity 700mV typical.

      Frequency Response 10Hz – 100kHz ± 3dB



       Output level 1.6V for full power into 1kΩ – 100kΩ load

      Frequency Response 10Hz – 100kHz ± 3dB 


      Headphone Out

       6V into 64Ω headphones 0.5W max

      Power Output
       70W/ch into 8Ω and 120W/ch into 4Ω.

      Power Requirements


      20W maximum on no load.


      180W peak on 8Ω


      The Power Supplies

      A mixture of shunt for low noise and series regulator are used.

      The series regulator is only used to power the relays.

      The main pre and phono stages use a series/shunt regulator design.

      The power amps use large value bulk capacitors of 10,000µF/50V in
      conjunction with a 300VA transformer.