Acoustic Solid - Solid Brake Turntable

Package 1 contains WTB-370 Tonearm Only! No Cartridge! Microcontroller motor control M2 with crystal oscillator

Package 2 contains WTB-213 Tonearm Only! No Cartridge! Microcontroller motor control M2 with crystal oscillator

The Solid Brake is a belt-drive turntable from Acoustic Solid (Germany), available at Vinyl Sound in Toronto, Canada. It is built around one of the most unconventional platter assemblies in analog audio: a brass-coloured stainless steel brake disc from a Triumph Tiger motorcycle, precision-machined to meet the rotational accuracy requirements of a reference-grade turntable and mounted above a 6 kg, 30 mm CNC-machined aluminum platter, then topped with a 10 mm Plexiglas plate weighing 1.4 kg — bringing total platter assembly mass to approximately 9.4 kg. Acoustic Solid's Microcontroller M2 quartz crystal motor control and Berger Lahr synchronous motor maintain speed synchronization at 0.08% as measured with an Ortofon measuring computer. Available in Package 1 with the WTB-370 tonearm or Package 2 with the WTB-213 tonearm — cartridge not included.

The Motorcycle Brake Disc Platter

The Solid Brake's platter assembly begins with a standard 6 kg, 30 mm aluminum platter as its foundation, identical in specification to the Solid 110 Metal. Above it sits a genuine stainless steel brake disc sourced from a Triumph Tiger motorcycle — selected not for its visual impact alone, but because motorcycle brake discs are manufactured to extremely tight tolerances for roundness and balance, making them directly applicable to the demands of precision turntable rotation. The brass-coloured disc is installed beneath a transparent 4 mm Plexiglas support layer, and the entire assembly is topped with a 10 mm Plexiglas plate of 1.4 kg, adding significant mass and a further damping layer at the record interface. The result is a total chassis weight of 21.5 kg without tonearm — the heaviest in Acoustic Solid's Metal series — housed in a high-gloss polished aluminum chassis standing 26 cm tall.

All-Aluminum Chassis and Resonance Decoupling

Beneath the striking platter assembly, the Solid Brake shares the proven engineering of Acoustic Solid's Metal series. The 50 mm base carrier plate and feet are machined from solid aluminum and decoupled via Teflon discs and silicone mixture dampers. The ground stainless steel bearing axle sits in a cast liner and cast bearing bottom, itself damped with Teflon discs and terminated with a polished ceramic ball for smooth, low-friction rotation. Height adjustment is via threaded spikes on felt feet. The Berger Lahr synchronous motor drives the platter through a Nylon-silicone belt, with the Microcontroller M2 providing quartz-locked speed control and real-time fine adjustment at both 33.3 and 45 rpm without stopping playback.

Key Features

• Triumph Tiger Motorcycle Brake Disc Platter: A genuine stainless steel brake disc from a Triumph Tiger motorcycle forms the visual and acoustic centrepiece of the platter assembly, precision-manufactured to the rotational tolerances required for turntable use.
• Multi-Layer Platter Assembly: 6 kg aluminum base platter, 2 kg stainless steel brake disc, 4 mm Plexiglas support layer, and 1.4 kg 10 mm Plexiglas top plate combine for approximately 9.4 kg of total platter mass.
• 21.5 kg Total Chassis Weight: The heaviest turntable in Acoustic Solid's Metal series, delivering exceptional mechanical stability and resistance to external vibration.
• High-Gloss Polished Aluminum Chassis: Full aluminum construction with a high-gloss polished finish, standing 26 cm tall to accommodate the layered platter assembly.
• Microcontroller M2 with Crystal Oscillator: Quartz-referenced motor control achieves 0.08% speed synchronization with one-touch 33.3 and 45 rpm switching and real-time fine adjustment.
• Berger Lahr Synchronous Motor: German-made synchronous motor with Nylon-silicone belt drive isolates motor noise and vibration from the platter bearing.
• Multi-Layer Resonance Decoupling: Teflon disc and silicone damper isolation at the 50 mm base carrier plate, feet, and bearing housing throughout the chassis.
• Polished Ceramic Ball Bearing: Ground stainless steel axle with cast liner, Teflon decoupling, and polished ceramic ball for low-friction, low-noise rotation.
• Two Tonearm Packages: Available with the WTB-370 (Package 1) or WTB-213 (Package 2) tonearm — cartridge not included.

Technical Specifications

Frequently Asked Questions

What is the Acoustic Solid Solid Brake?

The Acoustic Solid Solid Brake is a belt-drive turntable from Acoustic Solid of Germany, built around a genuine stainless steel brake disc from a Triumph Tiger motorcycle mounted above a 6 kg CNC-machined aluminum platter and topped with a 10 mm Plexiglas plate. It weighs 21.5 kg without tonearm, achieves 0.08% speed synchronization via Microcontroller M2 quartz control, and is available in two tonearm configurations with no cartridge included.

Why does the Acoustic Solid Solid Brake use a motorcycle brake disc?

Acoustic Solid selected the Triumph Tiger brake disc because motorcycle brake discs are manufactured to extremely tight tolerances for roundness and rotational balance — requirements that translate directly to the precision demands of a turntable platter. The disc is not a decorative addition: it must meet the same rotational accuracy standards as any other Acoustic Solid platter component. The visual impact is a consequence of the material choice, not the reason for it.

How does the Acoustic Solid Solid Brake compare to the Solid 111 Metal or Solid 311 Metal?

The Solid Brake shares the same Berger Lahr motor, Microcontroller M2 quartz control, bearing assembly, and Teflon-silicone decoupling architecture as the rest of the Acoustic Solid Metal series. It surpasses both the Solid 111 Metal and Solid 311 Metal in total chassis weight at 21.5 kg, and introduces a uniquely layered platter assembly — aluminum base, stainless steel brake disc, Plexiglas support, and Plexiglas top plate — that no other model in the range replicates. The Solid Brake is the statement piece of the Metal series, combining maximum mass with a one-of-a-kind aesthetic.

Does the Acoustic Solid Solid Brake come with a cartridge?

No. Both Package 1 (WTB-370 tonearm) and Package 2 (WTB-213 tonearm) are supplied without a cartridge, allowing the buyer to select a cartridge suited to their phono stage and system. Vinyl Sound Toronto can advise on cartridge pairing for either tonearm configuration.

Where can I buy the Acoustic Solid Solid Brake in Toronto or Canada?

The Acoustic Solid Solid Brake is available in Toronto, Canada at Vinyl Sound, an authorized Acoustic Solid dealer. Vinyl Sound's team can assist with tonearm package selection, cartridge recommendations, phono stage matching, and full setup support.

What phono stage does the Acoustic Solid Solid Brake require?

The Solid Brake requires an external phono stage, as none is built into the turntable. The correct phono stage depends on the cartridge chosen — a moving magnet cartridge requires an MM phono input, while a moving coil cartridge requires an MC stage with appropriate gain and impedance loading. Vinyl Sound can recommend compatible phono stage options to complete the analog front end.