Sugden
Masterclass IA-4 Integrated Amplifier$9999
The largest and most powerful integrated amplifier in the Sugden family which takes advantage of the initial Sugden class A output configuration. The Pure Class A solid state output stage equipped with greater power from a custom-built transformer and low impedance supply can project and fill an enormous holographic sound stage with ‘simply more music’.
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 integrated system of pre-amp and power amp driven by individual power supplies enables the ultimate in musical performance. Just listen – you will find it worth more than a thousand words. Despite the high power installed, Sugden have included an MM phono stage of extremely high quality.
Masterclass SPA-4 & MPA-4 Power Amplifiers$9999 (each!)
The stereo power amplifier SPA-4 and its big brother, mono power amplifier MPA-4, have been developed to present a holographic three dimensional soundstage where the listener can almost walk in and touch the musicians. Tremendous headroom is available in which to develop a wonderfully dynamic portrayal of music in all of its moods – ‘simply more music’.
The stereo power amp 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. In the balanced mono amps the two power output stages of the stereo power amp 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.
Masterclass LA-4 Pre-amplifier$6999
The Sugden Masterclass LA-4 is a line level stereo pre-amplifier with authority, finesse and the capability to develop a sound stage with imaging, dimensional realism, and time/space elements in perfect harmony. The units primary function is ‘Simply More Music’ with a neutrality to allow end users to choose mating components and obtain customised performance.
The 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.
A21SE Amplifier $5999
The A21SE is a further expansion of the musical performance available from the Sugden single ended Class A output circuitry. Designed to provide more power output, greater speaker compatibility and a larger sound stage, it is not an uprated A21 Series 2 but a definitive amplifier in its own right.
The SE contains a pre-amp stage with high input impedance, high voltage gain, low noise, wide bandwidth, low distortion and low impedance to drive the Class A power stages. This pre-amp stage coupled to a fifty percent increase in the low impedance power supply enables a very dynamic sound stage to be developed with pin point imaging and fine tonal balance. An amplifier of unforced spontaneity which will satisfy the most discerning enthusiast with ‘simply more music’.
The A21SE is a line level input integrated amplifier without an integrated phono stage option. Sugdens are pleased to offer optional phono stages.
A21 Series 2 Amplifier $3999
Sugden’s first commercial amplifier was the A21 in the mid-1960s. It is generally recognised as the first commercial, solid state Pure Class A amplifier to be available for audio enthusists. It was a very special amplifier with a single-ended Class A output configuration and current feedback. This design concept did not appear generally in commercial audio amplifiers until over a decade later. Capable of recreating a musical performance well in advance of its peers, it made the name of Sugden synonymous with musical performance. The true potential of the output configuration was realised in the 1980s when it was coupled to modern components, reduced internal filtering and multi emitter solid state output devices.
The result was an amplifier of extended and more controlled bass and treble but still retaining the wonderfully detailed mid range of the original design. The amplifier became the A21a, a reference amplifier on many continents. Further improvements have achieved significant enhancement of performance and the amplifier has been rebranded as the Sugden A21a Series 2.
Mystro Integrated Amplifier $3299
The Sugden Mystro series amplifier is the introductory model to a world of ‘simply more music’.
An integrated amplifier including a phono stage and three line level inputs, with a nominal 50 watts per channel AB output stage, it comprises many innovative audio circuits which are a distillation of Sugden’s current development programme. This is a wondrously musical amplifier with a very special pre-amp stage. The low level listening performance is exceptional and can be compared to amplifiers of much greater expense. Fast and dynamic with tremendous tone burst potential and broad speaker tolerance, the amplifiers performance will amaze and enthral listeners with its musical integrity.
The Mystro has, by design, an excellent ‘green’ pedigree – fully metal cased, housing RoHs compliant components, it requires very low quiescent and operating power.
The Mystro amplifier is a very fast and dynamic amplifier whilst still retaining the hallmark of all Sugden products – fatigue-free listening. A superb portrayor of natural instruments, because of the fatigue-free sound it is also particularly suitable for reproducing popular music. The power output amplifier is an AB design which has been developed over many years to give the best compromise between Class ‘A’ and Class ‘B’ type of operation. The power amplifiers are configured as dual mono output stages with low impedance power supplies to ensure excellent bass timing. The circuitry has been tuned to give an extended high frequency clarity, with purpose and punch, to deal with some of the latest digital recording techniques. Tremendous headroom has also been included in the tone burst capabilities of the 125 watt, multi-emitter, bi-polar output devices.
The Sugden Mystro embodies truly advanced and innovative audio circuitry developed to its ultimate level, value engineered and subjectively mastered, to create a wonderously musical amplifier.
