Sugden | Jack-fi

Sugden A21SE Stage Two

madi — Wed, 13 Mar 2013 16:25:28 +0000

There are two dedicated phono amplifiers in the Sugden range and both are borne from our passion for vinyl. The Stage Two offers exceptional value for money with facilities to cater for both MM and MC cartridges. The design is a two box system separating the power supply from the amplifier. The phono amplifier has fixed loading for MM and 100 and 470 Ohm selection for MC.

Our design criteria was to produce a product that was as neutral as possible, retaining a faithful and enjoyable analogue sound.

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Sugden Masterclass HA4 Headphone Pre-amplifier

madi — Tue, 13 Mar 2018 19:46:31 +0000

The HA-4 is not only a state of the art class A headphone amplifier, it can also be used as a compact high-end pre-amplifier. The design is similar to our top of the range Sapphire DAP-800 and will drive any dynamic headphone. Featuring Sugden VCV circuit and coupled to a pure class A zero feedback mosfet output stage. The HA-4 is unconditionally load stable with a discrete constant voltage series power supply. A high input impedance ensures absolute minimal loss of signal with perfect current gain

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Sugden Masterclass PA4 Phono Amplifier

madi — Tue, 13 Mar 2018 18:26:49 +0000

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.

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Sugden A21 AL Signature Line Amplifier

madi — Sat, 10 Mar 2018 09:59:10 +0000

Descriere Produs:
The Sugden pure class A design provides affordable high-end performance from a beautifully engineered single box integrated amplifier. Compact in size with a simple but stylish design, the A21 is possibly the only amplifier you will ever need. With many of the original A21’s still in daily use after fifty years, it could also last a life time. Providing a large soundstage and depth to all types of music, the A21 is an amplifier you can listen to for hours without fatigue. The single ended circuit provides impressive dynamics and incredible bass.

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Sugden A21 AI Signature Integrated Amplifier

madi — Sat, 10 Feb 2018 21:36:10 +0000

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Sugden Masterclass FPA-4 Power Amplifier

madi — Tue, 13 Mar 2018 17:50:10 +0000

Descriere Produs:

Masterclass FPA-4 Power Amplifier

The FPA-4 power amplifier is the latest member of the Sugden Masterclass Family. This output stage is of the classic Sugden pure class A single ended design which has given musical satisfaction to thousands of discerning music lovers over many years. The amplifier benefits from a comparator and correction circuit so that errors which would occur in the power stage, due to varying loads and distortion, are corrected to match the output of the high impedance input amplifier. Whilst it is maintaining the signal authenticity it is also increasing the load stability and forces the output impedance to zero. The Amplifier with Sugden Error Correction has extremely low open loop output impedance with a resultant high damping factor at quite high frequencies.

Coupling of the output of the Amplifier to its chosen speakers is via a ‘soft connection’ protection board. It is a static contact switching board using extremely low ‘on resistance’ power mosfets. These devices are timed on and off to enable soundless connection to the speakers however sensitive. The FPA-4 is an exciting new design that performs well above its modest price point.

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Sugden LS 21

madi — Wed, 13 Mar 2013 15:59:58 +0000

Description – Two-way floor standing with integrated plinth.
Cabinet Design – Tune tapered quarter wave.
Cabinet Construction – Hand-made glued and pressed locking mitre joints.
Sensitivity – 90dB 1 watt one metre.
Nominal Impedance – 8 ohms.
Frequency Range – 25 -20000Hz.
Power Handling – 160 watts.
Crossover Point – 2000Hz.
HF Drive Unit – 28mm Ferro fluid cooled.
LF Drive Unit – 160mm Hybrid Magnet vented motor, cast basket 54mm voice coil.
Terminals – Single wired large style gold plated multi way binding posts.
Internal Wiring – Dual diameter OFC copper for HF and LF units.
Dimensions – 100cm x 22.5cm x 24.5cm including hand made spikes (HWD).
Boxed Weight – 25 kgs each.
Standard Finishes – Cherry, Walnut & Maple. The veneers are crown cut, book matched and applied in the Sugden factory.
Warranty – Five years parts and labour.

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Sugden Masterclass LA-4 Preamplificator

madi — Tue, 13 Mar 2018 18:02:54 +0000

Descriere Produs:

A high quality active pre-amplifier featuring a host of inputs and outputs. The LA-4 makes a perfect combo with either the Masterclass or Sapphire power amplifiers. High-end touches include gold plated circuit boards, relay switching of all inputs and output and a sophisticated class A output stage. The LA-4 is a high gain amplifier that provides an iron fist of control over any power amplifier. The electronic circuitry has been developed to offer the best possible sonic performance without compromise including the use of specially selected transistors and capacitors to provide the best signal preservation. 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.

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Sugden Masterclass PDT-4F

madi — Tue, 13 Mar 2018 15:39:46 +0000

The PDT-4F is designed to compliment both the Masterclass and Sapphire series of amplifiers. Utilising a high speed transport mechanism and on board memory, the PDT-4F is a technically advanced CD player. To reduce jitter and control errors during play back there is a dedicated transceiver circuit, this re-formats data prior to the digital to analogue converter.

A unique conversion method is employed without oversampling or filtering in the digital domain, instead we chose an analogue filter resulting in very wide bandwidth capability.

The architecture may be similar to the Fusion 21 but the PDT-4F uses twin DAC’s and precision instrumentation amplifiers in the analogue frontend which eliminate the need for input impedance matching. This forms the basis of a very high quality balanced output which is not available on the Fusion 21. The twin DAC configuration reduces noise, improves dynamic range and increases current output.

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Sugden Masterclass IA-4

madi — Wed, 13 Mar 2013 14:31:00 +0000

The Sugden Masterclass IA-4 Pure Class ‘A’ Integrated Amplifier is 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.

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-amplifier and power amplifier 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 a Moving magnet phono stage of extremely high quality.

Individually hand-made in England.

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