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    CB Tonearm
    Designed by Frank Schröder
  • slidebg1
    CB Tonearm
    Designed by Frank Schröder
  • slidebg1
    CB Tonearm
    Designed by Frank Schröder

Frank Schröder created an entirely new, radical technique to decrease friction in captured bearings. The resultant experimentation generated a coefficient of friction lower than anything ever published. This is complemented with a new multilayer carbon fibre wand, establishing a new level in tonearm design.
Constrained layer damping and material transitions are used throughout the design to tune and separate sources from the impeding mechanical movement in the device. The end result is no discernible sonic fingerprint is added to your system by the wand.
The CB tonearm features several unique technologies and solutions
  • Magnetically centered and pre-loaded ceramic hybrid bearings eliminating bearing chatter completely, guaranteeing constant rigid structural coupling and silent ultra-low friction movement
  • Unique system for lateral movement damped by eddy current induction
  • Extremely low bearing stiction/friction through the use of magnetically centered and pre-loaded ceramic hybrid ball bearings
  • 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 the record, so the arm is immune to warp wow effects
  • Wiring harness with extremely low dielectric losses allows usage of any MM cartridges with proper capacitive coupling to the phonostage
  • Symmetrical layout of the conductors preventing RF and EMI entering your preamplifier
  • Multi-layer armwand 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
  • A dual section counterweight is incorporated with an adjustable damping system. This allows tuning of structural vibration absorptions to prevent signal reflection across the armwand
  • Magnetic anti-skating - dynamic compensation for the varying skating forces across the record
  • The CB tonearm is designed to reject vibrations conducted through the mounting plate that originate from other turntable components such as; the motor, plinth, bearing, and airborne feedback.
    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.
    Schröder CB Tonearm Technical Specifications Arm wand TypeWood (Gloss finish)
    Carbon Fiber (Gloss finish)
    Length9-inch Wand
    12-inch Wand
    Effective Length239.3 mm
    282.0 mm
    Pivot To Spindle Distance222.0 mm
    267.48 mm
    Overhang17.3 mm
    14.52 mm
    Effective Mass with supplied cartridge-mounting plate 9-inch armwand14 g
    19 g with optional heavy cartridge mounting plate
    12-inch armwand18 g
    23 g with optional heavy cartridge mounting plate
    Mounting Collar24-25 mm arm stand with single M6
    tapped mounting hole
    Raised bearing technology Ceramic hybrid bearings
    > 2 mg vertically
    > 3.5 mg horizontally
    Type Neutral balance arm, no change in VTF
    when altering VTA or record thickness
    Internal magnetic damping for
    horizontal movement
    Adjustable Parameters √  VTF
    √  VTA
    √  Overhang
    √  Offset angle
    √  Azimuth
    √  Anti-skating
    √  *Frictionless, resonance free magnetic anti-skating up to 2.3 g
    Wiring High purity copper wiring, 1m from arm to RCAs (additional lengths upon request) Dual section counterweight Lower counterweight can optionally be exchanged for a lighter or heavier cylinder in order to increase/decrease the total counterweight mass without altering the overall mass distribution of the arm.
    Adjustment to a fundamental arm cartridge resonance frequency of 8-12Hz yields optimal performance of the system.
    Metal color Black *Higher Vertical Tracking Force can be compensated for by exchanging the anti-skating screw, upon request
    Downloads Thrax Audio Brochure
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    Made To Fit Together Perfectly
    Customer Service Warranty and Registration Technical Support Contact Us Address: 251 Okolovrasten Pat 1766 Sofia, Bulgaria Phone: +359 2 988 9555 Follow us Facebook Instagram YouTube
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