Sugden Audio Products IA-4

Sugden Masterclass Integrated Class A Amplifier - Serviced + IA-4 Upgrade + Remote

One owner, excellent condition and full working order

Comes with original packaging, manual, mains lead and unused (still in sealed pouch) remote.

Fully serviced by Sugden in June 2017 (including upgraded, higher rated, bridge rectifiers)  and upgraded to current IA-4 specification.

Sugden Masterclass -Rescuing Music from Technology

The Sugden Masterclass IA-4 integrated amplifier is the largest and most powerful amplifier built by the Yorkshire firm Sugden Audio.

The Masterclass takes advantage of the initial Sugden class A output configuration. The Sugden Masterclass IA-4 amplifier incorporates a Pure Class A solid state output stage, along with enormous power from a custom-built transformer and a low impedance supply. The Sugden Masterclass IA-4 amplifier can project and fill an enormous holographic sound stage with ‘simply more music’.

The Sugden Masterclass IA-4 amplifier integrates a state of the art preamplifier and the classic Sugden Class A output stage, resulting in an extraordinary performance. The Sugden Masterclass IA-4 amplifier uses a system of pre-amp and power amp driven by individual power supplies which enables the ultimate in musical performance.

The Sugden Masterclass IA-4 amplifier also includes an MM phono stage of extremely high quality.

Sugden Masterclass IA-4 Amplifier Specification:

    Power Output - 33 watts at 8 ohms
    3 Line Inputs
    1 Balanced In
    1 Moving Magnet Phono In
    Variable Line out
    Fixed Line out
    Tape Monitor
    Input Sensitivity - 125mV for maximum output
    Phono Input Sensitivity - 2mV Moving Magnet
    Frequency - 14Hz to 200kHz
    Bandwidth - 6Hz to 300kHz
    Signal to Noise - >84dB