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PSC – Precision Speed Controller of turntable motor has been created for music lovers who have keen hearing sense and do not accept vinyl record sound height fluctuation. It also gives possibility to reduce motor noise and comfortable electronic 33/45rpm speed change. With combination with our innovative InteliClamp® PSC offers real speed measurement and presentation to the user online. This patented solution is the first-ever such kind of product on the market!


– Elimination of wow caused by mains power supply frequency 50 Hz fluctuations. According to EU standards maximum frequency deviation can reach up to +2/-3Hz. It is equivalent to -60/+40Hz deviation of 1 kHz sound which human ear is sensitive the most. Audiophile ear can distinguish 2-3Hz frequency deviation (~0,1Hz of mains frequency deviation). PSC built in quartz stabilized 230V generator has frequency deviation less than 0.001Hz and is absolutely inaudible for human ear. Online measurements of European grid network are available with 30s latency on web page swissgrid.ch
– 50Hz hum elimination by turntable motor vibration reduction. Vibrations are reduced thanks to
            Mains power supply THD lowering down to <2% when according to EU standards they can reach up to 8% in our houses.
            Silent Mode feature that drops motor power supply voltage to 70% of nominal level after defined delay from start.
– Platter speed error correction. Such error is typical effect of belt ageing, belt type change, bearing oil viscosity dependence of temperature.
– Electronic 33/45 speed change by one button press
– Real platter speed measurement with 0,01rpm accuracy (InteliClamp® required)
– Real platter speed stabilization. In this mode PSC makes automatic continuous turntable motor speed correction to achieve accurate and stable platter speed (InteliClamp® required)
– Smooth 45rpm motor start. Motor is started with 33rpm speed and after few seconds speeded up to 45rpm. It simplifies heavy platters start-up and extends motor and belt lifetime.

PSC & InteliClamp® are patented solution.



Nominal speed: 33.33, 45.00 rpm
Output 230V (5W max), <2% THD (Note 1)
Output frequency stability < +/-0.00005%
Output frequency error < 0.0005%
Speed measurement resolution +/- 0.01 rpm
Pitch control +/-2rpm with 0.01rpm resolution
Automatic speed regulation accuracy 33.33, 45.00rpm +/-0.01 rpm
Dimensions (width/length/height) 21cm/35cm/11cm
PSC weight 3.1kg
InteliClamp® dimensions (diameter/height) 78mm/52mm
InteliClamp® weight 570g
Power consumption < 40VA (Note 1)
InteliClamp® battery lifetime approx. 4 months (one record listened per day)
Note 1: Parameters can vary for different PSC versions

“The greatest improvement can be obtained by purchasing the PSC speed controller. It is a device that should stand in every system, not only in the Muarah company system. Replacing the arm with a more expensive one changes the sound so much, going in the direction of warmth and density, that I would look for a more powerful, more open cartridge. Let it be Ortofon, Lyra, Shelter etc. The system in the most expensive version retains all the basic features of the turntable base, but adds incredible charm and charm, along with low, dense bass. Bravo! RED Fingerprint.”

Wojtek Pacuła

APS – Audio Power Switch makes possible to connect two pairs of loudspeakers to one stereo amplifier or in opposite way : two amplifiers to one pair of stereo speakers. It can be also used in mixed installation where home cinema amplituner and stereo amplifier sources one pair of stereo speakers. Thanks to high quality silver plated switches, audiophile grade internal wiring and rigid terminal binding posts it is inaudible for music signals.


Maximum switched power: 500W per channel
Dimensions (width/length/height) 13cm/19cm/10cm
Weight 1.5kg