Sugden Masterclass LA-4 Class 'A' Line Pre-Amplifier
The Masterclass LA-4 was developed to complement the Sugden Masterclass Power Amplifiers and at its heart has dual mono, dc-coupled, Class A, current feed back gain stages. The gain stages are each powered by current shunt differential power supplies which enable the fastest transients and most powerful crescendos with true musical empathy.
The LA-4 has provision for stereo pairs of balanced inputs, four single ended RCA (phono) inputs, a By-Pass input, Input and output recording facility, two main pre-amp outputs and a balanced output.
Internally you will find gold plated circuit boards, high grade components and silver soldering.
The Masterclass LA-4 was developed to complement the Sugden Masterclass Power Amplifiers and at its heart has dual mono, dc-coupled, Class A, current feed back gain stages. The gain stages are each powered by current shunt differential power supplies which enable the fastest transients and most powerful crescendos with true musical empathy.
The LA-4 has provision for stereo pairs of balanced inputs, four single ended RCA (phono) inputs, a By-Pass input, Input and output recording facility, two main pre-amp outputs and a balanced output.
Internally you will find gold plated circuit boards, high grade components and silver soldering.
The Sugden Masterclass LA-4 Class 'A' Line Pre-Amplifier has authority, finesse and the capability to develop a sound stage with imaging, dimensional realism, and time/space elements in perfect harmony.
Sugden Masterclass SPA-4 Class 'A' Stereo Power Amplifier
The Masterclass SPA-4 has been developed to present a holographic three dimensional soundstage where the listener can almost walk in and touch the musicians.
The Masterclass SPA-4 has been developed to present a holographic three dimensional soundstage where the listener can almost walk in and touch the musicians.
The Sugden Stereo Power amplifier has facilities for asymmetric (phono/RCA) or balanced inputs, the latter utilising a virtual transformer (discreet) balanced input circuit. The power amplifiers are symmetrical, current feedback, dc-coupled, gain stages with servo controlled dc off-set and multi emitter output devices.
Sugden Masterclass MPA-4 Class 'A' Symmetrical Balanced Mono Power Amplifiers (two power amplifiers)
The Masterclass MPA-4 has been developed to present a holographic three dimensional soundstage where the listener can almost walk in and touch the musicians.
In the balanced mono amplifiers the two power output stages of the stereo power amplifier are connected in balanced mode giving a mono amplifier. The mono amplifiers give single channel power twice that of the stereo amps. Among some of the gains of the balanced configuration is a much lower noise floor, even greater dynamics and a rock solid musical sound stage.
The Masterclass MPA-4 has been developed to present a holographic three dimensional soundstage where the listener can almost walk in and touch the musicians.
In the balanced mono amplifiers the two power output stages of the stereo power amplifier are connected in balanced mode giving a mono amplifier. The mono amplifiers give single channel power twice that of the stereo amps. Among some of the gains of the balanced configuration is a much lower noise floor, even greater dynamics and a rock solid musical sound stage.
Sugden Masterclass PA-4 Class 'A' Phono Amplifier
The full potential of the musical magic contained on vinyl discs can only be realised by the passionate treatment of the low level signals emanating from the disc and stylus. Class 'A' circuitry is renowned for its recovery of and synergy with, low level signals and Sugden is synonymous with Class 'A' circuitry. This combination is fully exploited in the, PA-4, dual mono, two stage, Masterclass PA-4 Class 'A' Phono Amplifier. The two stages are the moving coil pre-amplifier and the moving magnet, RIAA-correction amplifier.
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.
The user interfaces are all externally selected i.e. input selection 1x MM, 2x MC, the latter with external loading facilities. There are two stereo outputs for recording or line amplifier.
The full potential of the musical magic contained on vinyl discs can only be realised by the passionate treatment of the low level signals emanating from the disc and stylus. Class 'A' circuitry is renowned for its recovery of and synergy with, low level signals and Sugden is synonymous with Class 'A' circuitry. This combination is fully exploited in the, PA-4, dual mono, two stage, Masterclass PA-4 Class 'A' Phono Amplifier. The two stages are the moving coil pre-amplifier and the moving magnet, RIAA-correction amplifier.
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.
The user interfaces are all externally selected i.e. input selection 1x MM, 2x MC, the latter with external loading facilities. There are two stereo outputs for recording or line amplifier.
Sugden Masterclass IA-4 Pure Class 'A' Integrated Amplifier
The Masterclass IA-4 has an extraordinary, organic, euphonic, acoustic performance, achieved by the integration of a state of the art preamplifier and the classic Sugden Class 'A' output stage.
The Masterclass IA-4 has an extraordinary, organic, euphonic, acoustic performance, achieved by the integration of a state of the art preamplifier and the classic Sugden Class 'A' output stage.
Sugden Masterclass IA-4 Pure Class 'A' Integrated Amplifier internal view showing gold plated circuit boards, high grade components and silver soldering. Note the massive heatsinks for each channel, which are also made by Sugden.
Sugden Masterclass PDT-4F Precision Digital Transcriptor
The Masterclass PDT-4 player extracts more from a compact disc than can be imagined. The PDT-4F exhibits a high energy open rich sound with powerful bass and no high register edginess. Just musical!
To expand the possibilities of digital playback, the PDT-4F is also capable of acting as a high quality stand-alone digital-to-analogue converter (DAC).
The Masterclass PDT-4 player extracts more from a compact disc than can be imagined. The PDT-4F exhibits a high energy open rich sound with powerful bass and no high register edginess. Just musical!
To expand the possibilities of digital playback, the PDT-4F is also capable of acting as a high quality stand-alone digital-to-analogue converter (DAC).
Sugden Masterclass HA-4 Class 'A' Headphone Amplifier - the reference standard for listening to music with headphones. Designed and hand-made in England.
Sugden Masterclass HA-4 Class 'A' Headphone Amplifier
The Sugden Masterclass HA-4 is a very special Class 'A' amplifier developed to extend the boundaries of "near field listening" to a level of musical performance that is truly amazing.
The Sugden Masterclass HA-4 is a very special Class 'A' amplifier developed to extend the boundaries of "near field listening" to a level of musical performance that is truly amazing.
Sugden Masterclass HA-4 Headphone Amplifier internal view showing gold plated circuit board, high grade components, silver soldered and solid silver wiring to RCA inputs.
E. & O. E.
© 2012-16 Neophonics® All Rights Reserved
E. & O. E.
© 2012-16 Neophonics® All Rights Reserved