The Sugden Masterclass PA-4 is the kind of phono stage that makes you question why you ever looked elsewhere — a wholly Class A, solid-state design from a company handbuilding electronics in West Yorkshire since 1967. It coaxes every nuance from an LP with unhurried, natural authority: bass lines feel anchored, mids carry actual body, and high-frequency detail arrives without edge. Two MC inputs — both factory-loadable to your specific cartridge — alongside an MM stage give this unit genuine versatility without compromise. The current-shunt power supply is an engineering statement in itself, and the DC-coupled signal path keeps music moving without a hint of veil. Put on something you know well, and prepare to hear it differently.
- Condition
- NEW
- Factory Specs
Phono Two moving coil (MC), one moving magnet (MM)
Line Two line level
Controls MC1 selector, MC2 selector, MM selector, standby, input indicator
Loading MC1 and MC2 (factory set)
Output 360 mV
Input Sensitivity — MM 3.5 mV
Input Sensitivity — MC 0.15 mV
Loading — MM 47 kΩ
Loading — MC 470 Ω and 100 Ω
Frequency Response +/–0.3 dB, 10 Hz–30 kHz
Signal to Noise >70 dB
Dimensions (H × W × D) 4.3" × 16.9" × 13.0" (110 × 430 × 330 mm)
Weight (gross, packed) 13.2 lbs (6 kg)
Warranty 5-year guarantee against defective workmanship; third-party components: 1-year parts & labor, 2nd year parts only; non-transferable
- Documentation
- Sugden Masterclass PA-4 Owner's Manual
- Liner Notes
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.
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.
- Stock No.
- 15481100501213
The Sugden Masterclass PA-4 is the kind of phono stage that makes you question why you ever looked elsewhere — a wholly Class A, solid-state design from a company handbuilding electronics in West Yorkshire since 1967. It coaxes every nuance from an LP with unhurried, natural authority: bass lines feel anchored, mids carry actual body, and high-frequency detail arrives without edge. Two MC inputs — both factory-loadable to your specific cartridge — alongside an MM stage give this unit genuine versatility without compromise. The current-shunt power supply is an engineering statement in itself, and the DC-coupled signal path keeps music moving without a hint of veil. Put on something you know well, and prepare to hear it differently.
Condition
NEW
Factory Specs
Phono Two moving coil (MC), one moving magnet (MM)
Line Two line level
Controls MC1 selector, MC2 selector, MM selector, standby, input indicator
Loading MC1 and MC2 (factory set)
Output 360 mV
Input Sensitivity — MM 3.5 mV
Input Sensitivity — MC 0.15 mV
Loading — MM 47 kΩ
Loading — MC 470 Ω and 100 Ω
Frequency Response +/–0.3 dB, 10 Hz–30 kHz
Signal to Noise >70 dB
Dimensions (H × W × D) 4.3" × 16.9" × 13.0" (110 × 430 × 330 mm)
Weight (gross, packed) 13.2 lbs (6 kg)
Warranty 5-year guarantee against defective workmanship; third-party components: 1-year parts & labor, 2nd year parts only; non-transferable
Documentation
Sugden Masterclass PA-4 Owner's Manual
Liner Notes
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.
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.
Stock No.
15481100501213
