Sugden Masterclass ANV-50 Integrated Amplifier
Sugden Audio celebrates 50 years with the Masterclass ANV-50, a high-end integrated amp boasting a pure Class A sound, refined by an innovative two-stage system for flawless audio fidelity even with demanding speakers. DC-coupled circuitry and a lightning-fast, stable 1 MHz power supply ensure uncompromising signal purity, while robust construction promises a century of sonic bliss for the discerning audiophile.
Category Integrated Amplifier
Country UK
Manufacturer Sugden
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Free Delivery within Mainland UK.
60-Day Money-back Guarantee
Returns Policy
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Inputs:
Five line level operated by relaysOutputs
One pre-out (variable), one tape out
One pair of stereo multi-way binding postsVolume Control
Remote control (RC5 handset included)Specifications:
Line Input Sensitivity
110mV @ zero attenuation for full outputPower Output
50 Watts into 8 Ohms both channels working100 Watts into 4 Ohms both channels working
Frequency Response
+/-1dB 12Hz-45kHzBandwidth
8Hz-86kHzSignal to Noise
>85dBGross Weight (packed)
11kgsDimensions
143 x 430 x 370mm (hwd)
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 enthusiasts and music lovers.
The ANV-50 has a pure class A amplifier at its heart, which is coupled to an advanced ‘ideal’ final output stage. This unique two-stage amplification system guarantees our 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. Maintaining the signal authenticity also increases the load stability and forces the output impedance to zero. This special output stage with Sugden Error Correction has extremely low open loop output impedance and a high damping factor at quite high frequencies. It also benefits from overall current feedback.
The power amplifier and pre-amplifier are fully DC coupled so there are no capacitors in the signal path to interfere with or deteriorate the sound quality. One of the key features of Sugden Class A amplifiers is the power supply. Because they have a high standing current and power reserves, the output is always ready to act instantly to any signal. This is unlike a conventional Class AB amplifier that waits to receive power through a transformer and a bridge rectifier. The ANV-50 takes this one step further by using a 1 MHz switching power supply which acts instantly to deliver the power as the Pure Class A amplifier section is always on.
The power supplies are high current, fast and incredibly stable. With an MTBF (Mean Time Before Failure) of 100 years, they are designed for longevity and reliability.
