We retail the full range of amplifiers from Roksan, Unison Research, Sugden and Pro-Ject. We have handpicked a selection of our current favourites.
For more information on any of the amplifiers that we stock, please contact us.
Unison Research / Simply Italy
The Simply Italy was inspired by the iconic Simply Two integrated amplifier from Unison Research, and produced to celebrate the 150th anniversary of Italian unification. It's been designed to be faithful to the Unison Research tradition, by making it an integrated amplifier design that sounds great and pays attention to important audio engineering principles that reduce performance-affecting interference.
Because of the overwhelming success of the design, the Simply Italy shares many of the design features of the Simply Two. Both are ultra-linear, single-ended Class A designs that produce 12W per channel, and both use EL34 valves in the output stage and ECC82 valves in the pre-amp and driver stages to achieve Unison Research's trademark imaging, clarity and musical precision. But the Simply Italy offers a wide range of new features that were designed and developed more recently.
First, the output impedance has been adjusted from 8Ω to 6Ω, making the amplifier compatible with a greater variety of loudspeakers. Also, since a true dual-mono configuration would be impractical in such a compact amplifier, Unison Research designed a new “Quasi-Dual-Mono” power supply. In this configuration, the power transformer and first filter stage of the power supply are doubled, separating all pre-amp stages to allow for lower cross-talk and low distortion.
Thanks to Unison Research's ability to design specialised transformers in house, the Simply Italy is able to have an output stage consisting of one EL34 in a single-ended ultra-linear configuration. This mode of operation for the output transformers allows the pentode EL34s to operate almost as if they were triodes. Furthermore, an additional toggle switch allows for an adjustment of negative feedback in the circuit. This means the sound character of the amplifier can be adjusted to suit specific types of music or listening environments.
The Simply Italy is supplied with an infra-red remote handset which allows for convenient control over input switching and the premium motorised volume pot from ALPS. The back panel is finished with four large gold-plated terminal connectors that allow any type of loudspeaker cable to be connected easily, alongside clearly marked RCA inputs for multiple audio sources.
Roksan / K3 Amplifier
Roksan's K3 Integrated Amplifier is a beautiful thing to behold. With its elegant new design, phenomenal sound characteristics and aptX® Bluetooth streaming capability, this new amplifier is truly orientated toward today’s discerning audiophile.
The K3 boasts power and bass drive in abundance, along with superb sound staging and engaging detail. You can stream music via any Bluetooth enabled device and the aptX® coding allows streaming of high resolution audio files from a compatible source. To add to its versatility there is also a built-in Moving Magnet phono stage and five line level inputs for connecting all your required sources.
Under the chassis the K3 Integrated Amplifier boasts some of the finest components and audio design principles available for the price. The newly designed audio path is completely symmetrical for a clear stereo performance, while the enhanced power supply section ensures this new amp is both efficient and ready to deliver what you need while listening.
Usability is effortlessly simple with the supplied system remote, and the device can also be fully controlled from the front panel.
The Sinfonia is a dual-mono design, which effectively eliminates the possibility of cross-channel electrical interference. Each amplification stage inside the Sinfonia is pure Class A and operates exclusively with valves. The amplifier is able to deliver a very capable 27-30W (max.) output power, per channel.
Thanks to Unison Research's extensive knowledge of output transformer production, the Sinfonia has been designed with a power stage that is made up of two KT88 valves per-channel in single-ended parallel ultra-linear configuration, in which the KT88 (beam power tetrodes) operate, with good approximation, like an ideal triode. This configuration provides very good results in terms of sound quality, however the natural drawbacks of valves (namely the non-uniform decline in performance over time due to drift) need to be addressed. So, after much testing, Unison Research developed an an original circuit design which, through the control of the KT88 bias, ensures a real-time compensation of the parameters affected by drift. This solution guarantees the best sound quality even after many years, and also contributes to a slight reduction in the time it normally takes for the tubes to warm up after switching on and reach the optimal temperature.
The pre-amplification and the power stage drive are based on the double triodes ECC83 and ECC82. These valves guarantee excellent linearity and offer a nearly complete absence of odd-order harmonic distortion components. Both the stages are made up of triodes in parallel and are biased by automatic bias circuits. In this way the output impedance of the two circuits can be slightly reduced, which in turn improves the linearity of the stages. The signal-to-noise ratio and the total harmonic distortion improve significantly in this design as well. The direct current on the preamplifier valve filaments is supplied by an interesting circuit configuration: it works by directing the power stage valves cathode current through a parallel regulator which operates like a zener diode to the filament’s terminal.
With audio amplifiers, the anodic voltage should ideally be supplied by a battery, but this is obviously not possible for a number of practical reasons. So, to compensate, the Sinfonia employs a special anodic power supply circuit that features an output capacitance that is much higher than usual, emulating the performance of a battery supply.
Unison Research / Sinfonia
Don't let the diminutive size fool you, the MaiA DS offers everything you could ever need for your sound system. Following on from where the MaiA left off the DS version has even more input and output options and even more features. This audiophile amplifier has been designed to fit into any system no matter what your listening sources are. The MaiA DS delivers a no compromise audiophile grade play back with an outstanding tube like sound whether from your speakers or through your headphones plugged straight into the amps headphone input.
The MaiA DS has 3 analogue inputs, a MM/MC phono input for your turntable, 3 Digital inputs (2 Optical/1Coaxial), a USB input and Aptx Bluetooth! Not only does the MaiA DS accommodate all of those input it also has headphone output, a fixed output for recording or a second zone amp, and variable output for a subwoofer.
The digital sources on the MaiA DS have got you fully covered far into the future. With the USB option you can connect up your computer/laptop and play back your music collection directly through the MaiA not matter what your chosen format is, even including DSD (DSD64, DSD128; DSD256). Digitally the MaiA also have you covered with its optical and coaxial inputs, perfect for any digital source from games consoles, CD players, set top boxes or even the likes of the Pro-Ject Essential II Digital turntable!
Full control of the MaiA DS can be done either through the included remote control or through the free Box Control App with no Wi-Fi needed to operate the MaiA DS. You can download the Box Design App from the App Store (Apple) or Play Store (Android).*
Pro-Ject / MaiA DS
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