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Robson MB2

Robson MB2

The MB2 Monoblock amplifier is based around the legendary Hypex NCore series of power amplifier module and housed in a high end diamond engraved aluminium case or with bespoke hardwood options. 

Capable of superbly holographic imaging and a vastly layered and wide soundstage. Vocals are vivid and real with a convincing portrayal of musical emotion.

Possibly the most accurate and detailed amplifier in the world with incredible dynamics and control and a perfect match for our range of tube pre-amplifiers.

MB2 features

  • Rhodium plated pole connectors
  • Duelund Coherent Audio internal wiring
  • Choice of balanced or un-balanced input
  • Choice of output power with the same sonic signature

High current and damping factor the MB2 will drive the most difficult of loads with breath taking control and power.

Please enquire about bespoke front panels.

PRICE - 500W -  £1600.00 /PAIR

PRICE - 250W -  £1400.00 /PAIR


Output power 500W 4 ohms 270W 8 ohms NC500

250W 4 ohms 130W 8 ohms NC250

Class of operation Class D
Minimum load 4 ohms
Frequency response and Distortion 10Hz to 50kHz @ 0.0015%
Signal to noise ratio 124dB
Output impedance 2.6 mohms
Peak output current 27 amperes - NC500  

17.5 amperes -NC250

Damping factor >1000
Power consumption 650W / 350W
Input voltage 240V/50Hz
Output connectors Rhodium plated binding posts
Input connectors Un-Balanced RCA or true balanced XLR ( optional )
Input impedance 10Kohms
Size 212W x 272D x 78H (mm)
Weight 2.7Kg

Robson MB2 - Image Gallery



MC1 - Tube Phono Preamplifier

Designed around the legendary 12AX7 vacuum tube in a 3 stage amplification stage using 2 x 12AX7 tubes for gain and the third for a buffered output to achieve lower impedance and better drive capability.

As with all out products the quality of components is always of the highest standard.

Mundorf silver/gold oil capacitors are used in the signal path and Dueland Coherent Audio cables used for all internal wiring along with high quality RCA connectors for purity of signal transmission.

MC1 features :

  • Free lifetime modification to MM or high output MC
  • Built in SUT'S
  • Enhanced and perfected RIAA EQ
  • Mundorf silver/gold oil signal capacitors
  • Duelund oil/cotten internal wiring

This model is primarily a MM Phonostage with built in SUT's for typical MC use, how-ever for MM or high output MC cartridges a free modification is available to convert this to any cartridge and associated impedance and capacitance for perfect compliance.

SE model comes with Miflex copper paper/oil capacitors and Duelund silver internal wiring.

Price - Standard model - £1600.00

Price - SE model - £2000.00


Input MC  RCA ( Adaptable )
Output voltage  1.0Vrms
Noise  -78dB
Output impedance  520 Ohms
Gain  MM - 44dB     MC - 78dB
Frequency response  +/-  0.6dB over RIAA curve
Vacuum tube compliment  12AX7 X 3
Input Impedance 100 ohms
Dimensions 240w x 320d x 115h
Weight 5Kg

MC1 - Image Gallery

Ref Phono 1

Ref Phono 1

Our flagship phono stage pre-amplifier is handcrafted in Scotland with the best audio grade components and based around a dual mono design for the audio circuitry using hand picked 6922 tubes and an extremely low noise power supply based around the excellent 12X4 vacuum tube to produce very low PSRR figures and near zero ripple current.

The result?   A sense of space and texture with breath-taking musicality, three-dimentionality and dynamics.

Based around purity of design and signal path our Ref Phono 1 uses a combination of  audiophile components only seen in esoteric models.

Ref Phono 1 features :

  • Kiwame resistors from Japan in the critical signal path for low noise and amore natural sound.
  • Mundorf paper and oil signal path capacitors or upgradable Dueland Coherent Audio capacitors.
  • Lundahl MC step up transformers (SUT) using amorphous cobalt core and dual coil structure with Cardas high purity wire.
  • Silver internal wiring and CMC RCA connectors
  • Toroidal transformers with B+ regulators for low PSRR figures.
  • High amplification, super accurate RIAA EQ , low output impedance and low distortion.

Handcrafted in beautiful hardwoods and available for demonstration in our showrooms.


PRICE -  Standard model   £3999.00

               SE model   £5999.00


Input MM (RCA) - 47k
MC (RCA) - adjustable input impedance
Frequency response +/- 0.6 dB over RIAA Curve
Gain  MM - 52 dB
MC - 70 dB using Lundahl
amorphous core transformers
Noise -82 dB
Input impedance 47k
Output impedance 450 ohms
Overload 3.3mV in
Power supply B+ regulators PSRR by 60dB
Low noise toroidal transformers
Vacuum Tube Complement 12X4 Rectifier tube and 4 x 6922 tubes
Dimensions 440w x 250d x 170h
Weight 10Kg

Ref Phono 1 - Image Gallery

Chronos Wall Speakers

Chronos Wall Speakers

The Robson Chronos wall speaker designed to bridge the gap between the Stella and Reference picture speaker utilising the same Ribbon tweeter as used in the Burmester B99 reference speaker from Germany.

Combined with a pair of high tech 7” bass units to produce an incredibly deep and extended bass and dazzling clarity in the midband essential for movie sound tracks and speech.

Sonic superiority to create the ultimate in home Theatre surround experience and to reveal the tinniest dynamics of instruments and provide accurate musical rhythm and imaging.

Used in conjunction with our range of subwoofers and the Stella speakers to give total sound immersion in multi channel installations.

Bespoke installation options available for wall hanging, direct onto wall fixing and in wall mounting plates.

Perfectly able to blend into any 2 channel HiFi environment, multi channel home cinema, commercial applications and even pro studio’s requiring extreme sound pressure levels.

Available with a high level of custom options for the true connoisseur of discreet integration to match any existing décor, ideal for that seamless match to wall colour, antique wood panelling or any other wall design.


Technology MDF braced construction
Description 2 way, linear phase, infinite baffle enclosure
Drive Units 2 x 174 mm Mineral filled Polypropylene cone bass/mid range unit
1 x Low mass Isodynamic Ribbon tweeter
Frequency Response 41Hz to 40KHz +/- 2dB on axis
Impedance 4 Ohms nominal, 5 Ohms minimum
Sensitivity 91dB spl at 1 metre on axis. 2.83V input
Crossover 2nd order bass roll-off
2nd order midrange and tweeter
Power Handling 150W peak un-clipped programme
Dimensions Height - 80cm (90cm framed)
Width - 30cm (40cm framed)
Depth - 8.4cm (10cm framed)
Net Weight 10Kg
16 Kg Framed
Finishes Standard finish available in satin black or white paint. Bespoke options available in various hides and frames. Mundorf capacitor and Cryo treated internal wiring upgrades available upon request.

Chronos Wall Speakers - Image Gallery

Stella Wall Speaker

Stella Wall Speaker

Carrying on with the same ethos of no compromise design and audiophile sound quality, our range of picture speakers are the perfect solution for Hi Fi, home cinema, commercial applications and the pro studio market to name but a few.

Even our entry-level range of picture speakers are capable of a full range sound with sufficient bass energy to eliminate the need of a sub woofer in most applications.

Using high tech magnesium alloy bass drivers and a high precision ribbon tweeter ensures purity of sound, an amazing soundstage and qualities to shame most high end HiFi speakers.

At only 74mm thick and available in various sizes, colours and designs to seamlessly blend into any living space, we are confident you will be amazed by the benefits of discreet audio installation that has no compromise in sound quality.

Join the ever-widening circle of clients who desires the perfect sound with zero footprint and book an appointment today with your local custom installer.


Technology MDF braced construction
Description 2 way, linear phase, infinite baffle enclosure
Drive Units 2 x 116 mm Doped Magnesium and Aluminium cone bass/mid range unit
1 x Low mass Ribbon high precision tweeter
Frequency Response 45Hz to 40KHz +/- 2dB on axis
Impedance 8 Ohms nominal
Sensitivity 90dB spl at 1 metre on axis. 2.83V input
Crossover 2nd order bass roll-off
2nd order midrange and tweeter
Power Handling 120W peak un-clipped programme
Dimensions 250W x 450H x 75D (85 with grill)
Net Weight 5Kg
Finishes Standard finish available in matt black. Bespoke options available in RAL colours

Stella Wall Speaker - Image Gallery

Tonitro Subwoofer

Tonitro Subwoofer

The Tonitro does not have it's Latin name for thunder without cause. Being designed around a hugely respected Peerless subwoofer unit and a 300W rms amplifier built to Robson Acoustics exacting specifications, Tonitro gives exceptional performance and delivers superbly controlled low bass.

As with all of Robson Loudspeakers and in house designs, constraints on material costs and choice of drive units imparts minimally which enables our designs to fulfil ultimate performance without huge price tags. The Tonitro utilises a choice of drive unit and high current amplifier that at this price point, other manufacturers could not justify allowing the portrayal of the loudest movie effects and the most delicate of acoustic nuances to be heard.

Advanced computer technology and hours of listening tests has produced a sub woofer that will not only give added dimension to multi channel surround systems but can be designed around your existing décor and furniture.


Technology MDF Matrix braced construction
Description 45 Litre Infinite baffle enclosure
Drive Units 1 x 269mm Peerless XXL subwoofer unit
Frequency Response 20Hz to 240Hz +/- 2dB on axis
Impedance 4 Ohms nominal
Sensitivity Fully adjustable
Crossover 40Hz to 150Hz
Phase adjustment 0 and 180 degrees
Inputs Low level L, R High level
Output Power 300W peak un-clipped programme
Dimensions Height - 50cm
Width - 43cm
Depth - 43cm
Net Weight 28Kg
Finishes Standard finish available in black hide and oak. Bespoke options available in various hides and hardwood.

Tonitro Subwoofer - Image Gallery

Reference Infra Subwoofer

Reference Infra Subwoofer

From the early stages of Research and Development into a no compromise standalone subwoofer, it was apparent how vital this element of a home Theatre set up played in the overall rendition of audio playback.

The essence of a great subwoofer carries the impact of low frequencies where sounds can be felt as well as heard and where sounds such as the human voice, piano and small calibre gun shots contain low frequency registers that are reproduced by the subwoofer.

The laws of physics dictate that to move sufficient air with low distortion and clarity, a large drive unit is essential to ultimate performance.

Designed around a 15" high spec dual voice coil drive unit in a complex secondary ported cabinet coupled with a 500W high current amplifier enables this subwoofer to deliver exceptional low frequency performance even in a large room.

The Robson Reference Infra subwoofer will take your senses to another dimension where your ears play only one role in home Theatre entertainment.


Technology Scandinavian Birth Ply braced construction
Description Secondary ported enclosure
Drive Units 1 x 402mm Inverse dual voice coil subwoofer unit
Frequency Response 12Hz to 240Hz +/- 2dB on axis
Impedance 4 Ohms nominal
Sensitivity Fully adjustable
Crossover 40Hz to 150Hz
Phase adjustment 0 and 180 degrees
Inputs Low level L, R and combined
High level
Output Power 500W peak un-clipped programme
Dimensions Height - 63cm
Width - 52cm
Depth - 52cm
Net Weight 50Kg
Finishes Standard finish available in black hide and oak. Bespoke options available in various hides and hardwood.

Reference Infra Subwoofer - Image Gallery

Voltaire III

Voltaire III

A glimpse pre-view of our latest speaker in the Voltaire range…….

Exceptional in many ways this design has virtually no cross-over and uses drivers specially chosen and adapted to give perfect integration in a 3 way system of incredible dynamics and realism.

Low frequencies are handled by a modified Volt 12” radial bass unit which takes bass control and precision to a new level and which runs completely open with no cross-over components in the signal path or in parallel.

The midrange frequencies are handled by a modified 3” Volt soft dome unit covering the most important mid band frequencies extending up to 4.5kHz crossing over to the legendary Raal ribbon tweeter to give shimmering highs only this tweeter is capable of.

The midrange unit has a single Dueland Coherent Audio cast resistor in series to lower it’s sensitivity and with a single Mundorf parallel capacitor to perfectly integrate with the tweeter.

The Raal tweeter then uses a single series Clarity Cap CMR capacitor which can be upgraded to a Dueland cast silver/oil capacitor on request.

Internal wiring has been specially chosen and using damping control and cryo frozen to give additional purity of signal path combined with WBT pole connectors.

All these components and virtually no cross-over equates to incredible dynamics and the rendition of musical passages only heard of from esoteric and extremely expensive loudspeakers.

PRICE   £10,000.00


Technology Scandinavian birch ply braced construction
Description 3 way, linear phase infinite baffle enclosure
Drive Units 1 x Volt Radial modified 12"
1 x Volt 3" soft dome
1 x Raal ribbon tweeter
Frequency Response 25Hz - 100kHz
Crossover frequency 380Hz & 4.5kHz
Impedance 4 Ohm nominal
Sensitivity 91dB
Power Handling 500W peak un-clipped
Dimensions Height - 1180cm
Width - 240cm
Depth - 450cm
Net Weight 55Kg

Voltaire III - Image Gallery




Robson Acoustics have been in the field of digital music for many years and experimented with various DAC’s and hardware to produce a Roon ready media server of exceptional quality both in terms of sound and construction.

Windows based platform with SSD system drive and 4 Tb of hard drive for the largest of music collections to either rip your entire CD collection or simply listen to Tidal and Roon using tablets or many mobile devices for total content content.

Roon is an incredible way to discover new music and to build up a library specific to your tastes.

Roon ready and the perfect platform for Tidal and Roon with a built in pro studio DAC capable of exquisite sound reproduction.

Optional DAC configuration for either internal or your own choice of external DAC via various digital outputs.

MS1 features :

  • Roon ready platform
  • Balance or unbalance analogue outputs using built in Pro studio DAC
  • SSD system drive
  • Hard drive cage for total vibration control
  • High quality power supply
  • Remote control via iPad or other tablets


MS2 - £2000.00


OS Windows based
Audio player Roon ready Tidal
Audio features Upsampling to PCM 384KHz, Ultra low jitter clock
Digital Output Coaxial
Analogue output True balanced TRS +4dBu and RCA unbalanced -10dBv
Internal DAC - Dynamic range 24-bit/192kHz, 114dB
S/PDIF Co-axial digital output
S/PDIF Optical digital output
USB output USB 2.0 and 3.0 PORT
Standard storage 4Tb hard drive
  250Gb SSD drive
Power requirements 240v input
Dimensions Height 7cm
Width 44.5cm
Depth 33cm
Weight 3Kg


Voltaire IV Reference

Voltaire IV Reference

The Voltaire range of precision loudspeakers has to have a flagship model which had one objective in mind… be one of the best loudspeakers in the world.

We believe we have achieved this with a system that can conjure up a holographic soundstage, imaging to die for, incredible bass precision and dynamics, the purest vocal clarity and huge scale to completely immerse you in the magic of the original recording.

A cabinet of immense structural integrity made from laminated birch ply and mdf with a 50mm thick baffle and internally braced to allow the drive units to act free of cabinet constraints and resonance’s.

Using a pair of critically damped 10” Volt bass/midrange drivers and a precision Ribbon tweeter capable of a very low cross over point and high power handling giving a system of high spl’s and sensitivity to provide an extremely analytical sound across the entire audible frequency spectrum.

WBT signature platinum pole connectors, silver plated UP OCC cable, resonance isolated oak cross over board, MR clarity capacitors and Track Audio Isolation feet seamlessly working to maintain those final nuances of musical textures.

To audition these incredible speakers and to be transported to the live recording venue contact the sales team for a demonstration you will never forget.

PRICE   £12,000


Technology Scandinavian Birch ply and mdf laminated and braced construction. 10mm Steel plinth with Track Audio Isolation feet.
Description 2 way, linear phase, free ported enclosure
Drive Units 2 x 261mm critically doped bass/midrange unit
1 x High precision Ribbon tweeter
Frequency Response 26Hz to 40KHz +/- 2dB on axis
Impedance 4 Ohms nominal
Sensitivity 93dB spl at 1 metre on axis. 2.83V input
Crossover 2nd order bass roll-off
2nd order tweeter
Power Handling 400W peak un-clipped programme
Dimensions Height - 1320cm
Width - 31cm
Depth - 40cm
Net Weight 75Kg
Finishes Standard finishes available in black hide and American black walnut hardwood. Various hardwood and hide options available. WBT Signature platinum pole connectors, MR Clarity capacitors, aircore Inductors and silver plated UP OCC internal wiring as standard.

Voltaire IV Reference - Image Gallery