Sugden Masterclass PA-4 Phono Amplifier


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Masterclass PA-4 Phono Amplifier

Vinyl is a passion for some people and that includes the designers at Sugden Audio.  It is capable of the very finest musical experience creating a unique presence and atmosphere. The PA-4 is one of the most rewarding phono amplifiers available at real world prices helping you to enjoy your prized record collection for years to come. The PA-4 comes fully loaded with two MC inputs, an MM input and infinite loading options  as it can be factory set to match your cartridge exactly.

Available on back-order

SKU: PA-4 Category: Tags: , , Brand:


The moving coil stage is a Class ‘A’ current feedback circuit and the moving magnet amplifier a Class ‘A’ voltage feedback circuit incorporating the RIAA correction in the negative feedback loop. DC servo circuits enable direct coupling of the musical signal from moving coil input to final output. The power supply, which Sugden considers an integral part of the amplifier circuitry, is a ‘current shunt’ design with a specially designed voltage regulator to prevent rising impedance with higher frequencies. Constructed with components of exceptional quality, hand assembled on long-term stability gold plated circuit boards; the resultant performance is a phono stage of absolute transparency and natural sound.

Inputs Two moving coil, moving magnet
Outputs Two line level
Loading MC1 and MC2
Front Panel Controls MC1, MC2, MM selector, standby, input indicator



Output 360mV
Input Sensitivity Moving magnet 3.5mV

Moving coil 0.15mV


Moving magnet 57K

Moving coil 470 & 100 Ohms

Frequency Response +/-0.3dB 30Hz-30kHz
Signal to Noise  >70dB
Gross Weight  (packed)  6kgs
Dimensions 110 x 430 x 330mm (hwd)