We can modify your vintage amplifier to suit your
You might wish for different connectors (e.g. RCA in
place of DIN sockets)
or improve the electrical safety.
Maybe you love the look of your
amplifier but want to take the sound to greater heights.
requirement, contact us on 044 01905 821737 and we will advise.
The Sugden A21 mod discussed below is unfortunately, no longer available but is
an excellent example of what can be done.
Premium amplifier modifications
By popular request we can carry out major modifications to your amplifier.
In this Sugden A21 example it raises this lovely vintage amplifier
to much greater heights with a
vastly improved sonic performance.
Putting it on par with today's greats. Many Sugden fans love
the wooden case and black and silver front panel but want that extra ounce of
musical clarity and separation. After this mod, you
have it all!
See the features below:
New ripple free PSU Assembly,
New Power Output and Rear Heatsink
Inside view of a
Inside view of original
Rear view of the modified A21
Front view of the
* The word 'mainly' is used to signify the grey areas in the
A/B classification. A class B amplifier needs a small amount of bias to remove
cross over distortion, so at very low signal
levels the amplifier works in class
A. Class A amplifiers work in class A for signal currents up to the set
class A current typically up to an amp or so, and then reverts to class B on
larger current peaks.
** According to the ROHS and LV directives the original
4mm loudspeaker sockets and 4mm banana plugs must not be used for loudspeaker
connections on new equipment, due
to exposed metal contacts and risk of electric
This is a major unique hand built modification through and through. Prices
start at £600.00. Phone 044(0)1905 821737 for specific pricing and lead times.