The Sugden ANV-50 is the kind of integrated amplifier that reminds you why pure Class A still matters — not as a marketing badge, but as a listening experience you feel in the room. Fifty watts of Sugden's signature Class A topology, running through fully DC-coupled stages with zero capacitors in the signal path, delivers a naturalness that solid-state rarely achieves: textures in acoustic instruments feel three-dimensional, and dynamic swings arrive without hesitation, backed by that ultra-fast 1 MHz switching supply. The Sugden Error Correction output stage keeps control over difficult loads without sacrificing the warmth and ease that define this amplifier's character — it drives confidently yet never sounds clinical. Five relay-switched inputs keep the signal path clean, and the RC5 remote handles everything without ceremony.
- Condition
- NEW
- Factory Specs
Line Inputs Five line level, operated by relays
Outputs One pre-out (variable), one tape out
Speaker Outputs One pair of stereo multi-way binding posts
Volume Control Remote control (RC5 handset included)
Line Input Sensitivity 110mV @ zero attenuation for full output
Power Output 50 Watts into 8 Ohms both channels working
Power Output 100 Watts into 4 Ohms both channels working
Frequency Response +/-1dB 12Hz–45kHz
Bandwidth 8Hz–86kHz
Signal to Noise >85dB
Gross Weight (packed) 11 kg (24.3 lbs)
Dimensions 143 x 430 x 370 mm / 5.6 x 16.9 x 14.6 in (H x W x D)
- Liner Notes
The Masterclass ANV-50 is a new integrated amplifier released to celebrate Sugden Audio's fiftieth anniversary. It is a unique design with many innovative features and specially developed audio circuits.
In 1967 Sugden released the world's first solid state pure class A amplifier, the A21. The ANV-50 promises to revisit this golden age of British audio engineering, with a design focused on the demands and preferences of today's audio enthusiast and music lover.
The ANV-50 has at its heart a pure class A amplifier coupled to an advanced 'ideal' final output stage. This unique two-stage amplification system guarantees Sugden's signature pure class A sound, with the ability to drive the vast majority of loudspeaker systems. The sophisticated final output stage features a comparator and correction circuit so that errors which could occur in the power output section due to varying loads and distortion are corrected to match the output of the high impedance input amplifier. This special output stage with Sugden Error Correction has extremely low open-loop output impedance with a resultant high damping factor at quite high frequencies, and also benefits from overall Current-Feedback.
The power supplies are high current, fast and incredibly stable, with a MTBF of 100 years. Five line-level inputs are relay-switched, and the internal pre-amplifier uses a minimum number of high-quality components in a line-drive design, providing a very open and natural sound. When no input signal is present, power consumption drops to only 20 Watts. With 50 Watts into 8 Ohms that doubles into lower impedances, loudspeaker matching is rarely a concern.
- Stock No.
- 15481105154269
The Sugden ANV-50 is the kind of integrated amplifier that reminds you why pure Class A still matters — not as a marketing badge, but as a listening experience you feel in the room. Fifty watts of Sugden's signature Class A topology, running through fully DC-coupled stages with zero capacitors in the signal path, delivers a naturalness that solid-state rarely achieves: textures in acoustic instruments feel three-dimensional, and dynamic swings arrive without hesitation, backed by that ultra-fast 1 MHz switching supply. The Sugden Error Correction output stage keeps control over difficult loads without sacrificing the warmth and ease that define this amplifier's character — it drives confidently yet never sounds clinical. Five relay-switched inputs keep the signal path clean, and the RC5 remote handles everything without ceremony.
Condition
NEW
Factory Specs
Line Inputs Five line level, operated by relays
Outputs One pre-out (variable), one tape out
Speaker Outputs One pair of stereo multi-way binding posts
Volume Control Remote control (RC5 handset included)
Line Input Sensitivity 110mV @ zero attenuation for full output
Power Output 50 Watts into 8 Ohms both channels working
Power Output 100 Watts into 4 Ohms both channels working
Frequency Response +/-1dB 12Hz–45kHz
Bandwidth 8Hz–86kHz
Signal to Noise >85dB
Gross Weight (packed) 11 kg (24.3 lbs)
Dimensions 143 x 430 x 370 mm / 5.6 x 16.9 x 14.6 in (H x W x D)
Liner Notes
The Masterclass ANV-50 is a new integrated amplifier released to celebrate Sugden Audio's fiftieth anniversary. It is a unique design with many innovative features and specially developed audio circuits.
In 1967 Sugden released the world's first solid state pure class A amplifier, the A21. The ANV-50 promises to revisit this golden age of British audio engineering, with a design focused on the demands and preferences of today's audio enthusiast and music lover.
The ANV-50 has at its heart a pure class A amplifier coupled to an advanced 'ideal' final output stage. This unique two-stage amplification system guarantees Sugden's signature pure class A sound, with the ability to drive the vast majority of loudspeaker systems. The sophisticated final output stage features a comparator and correction circuit so that errors which could occur in the power output section due to varying loads and distortion are corrected to match the output of the high impedance input amplifier. This special output stage with Sugden Error Correction has extremely low open-loop output impedance with a resultant high damping factor at quite high frequencies, and also benefits from overall Current-Feedback.
The power supplies are high current, fast and incredibly stable, with a MTBF of 100 years. Five line-level inputs are relay-switched, and the internal pre-amplifier uses a minimum number of high-quality components in a line-drive design, providing a very open and natural sound. When no input signal is present, power consumption drops to only 20 Watts. With 50 Watts into 8 Ohms that doubles into lower impedances, loudspeaker matching is rarely a concern.
Stock No.
15481105154269
