Revelation III -
Motor controller

The motor and its control system are central elements in achieving perfect vinyl playback. The choice of motor and the method of control have a significant impact on sound quality. As standard solutions did not meet our high expectations, we developed our own motor control system based on specialized sensor technology and advanced software.

The result of this development is an unparalleled listening experience. Allow yourself to be surprised and experience music in an entirely new dimension.

Sensor

Our industrial-grade, high-precision sensor employs an asymmetric three-point measurement system to achieve outstanding accuracy. A low-noise power supply ensures precise and stable measurement conditions at all times.

Speed is detected directly at the platter itself, guaranteeing constant rotational stability across the entire playback surface of the record. This allows the variable braking forces generated by the cartridge during playback to be precisely compensated, ensuring smooth, stable, and interference-free reproduction.

Controller

Our control units are equipped with two processors: one dedicated to all control calculations, and a second responsible for reading the highly accurate timing reference. We employ PID control algorithms which, in combination with our app, can be individually adapted to each customer’s motor controller.

Our high-precision 16-bit digital-to-analog converter is powered by an exceptionally sophisticated, low-noise power supply, allowing full utilization of all 65,536 control steps and ensuring the highest possible accuracy in motor regulation.

Mechanical architecture

As with all components of the Revelation III Series, the Revelation III phono preamplifier stands out for its robust steel enclosure, which is subdivided into multiple separate chambers.

This construction effectively isolates sensitive sections from one another, in particular shielding the amplification circuitry from the disruptive influence of AC voltages and transformers.

Precisely defined mounting points for the circuit boards are used to deliberately minimize the effects of resonances and vibrations.

This thoughtfully engineered mechanical structure protects the sensitive circuitry from unwanted interference, ensuring uncolored signal transmission and excellent sonic fidelity.

Motor

The motor used in our turntables is a coreless DC motor from the renowned Swiss manufacturer Maxon. It is equipped with precious-metal brushes and sintered bearings, ensuring exceptionally quiet operation.

Thanks to its ironless design, the motor operates entirely free of cogging torque, allowing for an exceptionally smooth and stable platter rotation.

Before installation, each motor undergoes a dedicated run-in process and is carefully selected. Only the highest-performing motors are integrated into our turntables, ensuring maximum sonic performance and uncompromising sound quality.

Controleed via app

Our motor controllers can be configured via Bluetooth using our dedicated app. A standout feature is the ability to directly adjust the control parameters of the three independent PID controllers within the app, allowing the sonic character of the turntable to be fine-tuned according to personal preference.

Three pre-programmed motor mappings are available:

Dynamic: for a lively, open, and highly detailed presentation.
Harmonic: for a relaxed and expansive soundstage.
Pure: with minimal control intervention, activated only when speed deviation exceeds 0.5 percent.