Tonearms by Schröder
Frank Schröder’s attention to detail and grasp of the physics involved in ideal tonearm behavior is second to none. Each tonearm is meticulously built like a Swiss Chronograph with rare precision and craftsmanship.
Whether you select the carbon fiber arm wand version, or his limited production wood wand version, the reproduced timber is consonant with music.
A Schröder tonearm sounds like no tonearm at all. Timbre and tonality of instruments takes on a new meaning. Across the entire frequency spectrum, this tonearm opens a door to a new insight into sound quality. If a high degree of fidelity and utmost naturalness is high on your list of sonic priorities, perhaps consider this tonearm as a standard of reference.
Unlike the unique magnetic bearing principle for which Schröder holds worldwide patents, the CB (Captive Bearing) series of arms feature hybrid ceramic bearings of unprecedented low friction (2mg vertical, 3.5mg horizontal). This is the lowest measured friction of any traditional bearing arm. With internal magnetic damping in the horizontal plane, the CB Tonearm has a calibrated center post to allow repeatable adjustment of VTA, adjustable azimuth and different headshell plates to allow adjustment of effective mass to couple with a wide range of cartridges.
One of the major influences in the sound reproduction of vinyl play back is mechanical vibration. After all, tonearms are basically mechanical devices. The CB tonearm is designed with defined physical zones within its infrastructure that focus vibrations away from key areas. It rejects vibrations conducted through the mounting plate that originate from other turntable components such as the motor, plinth, bearing, and airborne vibrations by diverting them away from the critical path.
The premise is to integrate a stiff, balanced mass structural coupling to the chassis. This effectively eliminates external excitation by generating equal forces to all sides of the arm, maintaining the dynamic stability of the system and preventing a deflection of the cantilever.
We offer the Schröder CB tonearm in two variations:
- The “standard” (production) version with carbon fiber composite arm wand.
- A custom, wood arm version manufactured by Frank, with his proprietary wiring, customized to your mass requirements.
This arm was formerly built under license by Artemis Labs in California, and is now manufactured by Thrax (the composite, carbon fiber armwand version). The custom (wood wand) version is manufactured by Frank.
CB stands for Captive Bearing (no more magnet/string beaings).
- Effective length: 239.3mm (custom version can be as long as 305mm).
- Effective mass can be tuned from 12.5 g to 19 g by changing cartridge mounting plates.
- Horizontal damping using a unique system of eddy current induction.
- Frictionless, resonance-free, magnetic anti-skating – compensates for varying skating forces across the record.
- Calibrated center post to allow repeatable adjustment of VTA.
- Azimuth is adjustable at the arm wand.
- Ceramic hybrid bearings are magnetically centered and pre-loaded – eliminating bearing chatter completely, guaranteeing constant rigid structural coupling and silent ultra-low friction movement.
- Extremely low bearing stiction/friction (2mg vertical, 3.5mg horizontal).
- Symmetrical mass distribution around the central bearing axes prevents external excitation to cause any cantilever deflection.
- The geometry and mass balance prevents change in VTF when altering VTA.
- Bearing for vertical movement is on the same plane as record, so the arm is immune to warp wow effects.
- Wiring harness with extremely low dielectric losses allows mounting of any MM cartridges with proper capacitive load at the phonostage.
- Symmetrical layout of the conductors preventing RF and EMI entering your preamplifier.
- Multi-layer arm wand construction using carbon fiber and other composites create extreme torsional and bending stiffness with very high internal damping factors. This prevents any signal reflection back into the cartridge.
- Dual section counterweight with an adjustable damping system. This allows tuning of structural vibration absorptions to prevent signal reflection across the armwand. .