Acoustic Solid WTB 230 9" Carbon Arm Tube Tonearm at Vinyl Sound Toronto Canada

The WTB 230 is a 9-inch tonearm from Acoustic Solid (Germany), available at Vinyl Sound in Toronto, Canada. Featuring a carbon fiber arm tube for a high stiffness-to-mass ratio and low resonance transmission, the WTB 230 is designed as a precision upgrade or replacement tonearm for Acoustic Solid turntables and compatible third-party plinths. With an effective length of 233.75 mm, an offset angle of 23.5 degrees, and compatibility with cartridges weighing between 5 and 20 grams, the WTB 230 covers a wide range of moving magnet and moving coil cartridge installations. Total tonearm weight is 390 grams with a mounting distance of 216 mm.

Carbon Fiber Arm Tube

The WTB 230's arm tube is constructed from carbon fiber, a material chosen for its combination of high rigidity and low mass — properties that directly affect the tonearm's ability to track the groove without adding coloration or resonance of its own. A stiff, low-mass arm tube minimizes flexing under the dynamic loads generated by stylus-groove contact, preserving the geometric relationship between cartridge and record surface across the full arc of the tonearm's travel. Carbon fiber also has inherent damping properties that reduce the transmission of structural resonance from the bearing housing to the cartridge body, contributing to a lower noise floor and cleaner channel separation at the cartridge output.

Geometry and Cartridge Compatibility

The WTB 230 is aligned to a 233.75 mm effective length with a 17.75 mm overhang and 23.5 degree offset angle, providing a well-optimized tracking geometry across the record surface for a 9-inch arm. The 216 mm mounting distance is standard for direct fitting to Acoustic Solid turntable plinths equipped with WTB-series tonearm mounting bases, and the 5 to 20 gram cartridge weight range accommodates the majority of moving magnet cartridges from manufacturers such as Ortofon, Nagaoka, and Audio-Technica, as well as a wide selection of moving coil cartridges at both low and medium compliance. At 390 grams total weight, the WTB 230 provides sufficient mass for stable bearing performance without overloading the turntable plinth mounting point.

Key Features

• Carbon Fiber Arm Tube: High stiffness-to-mass ratio and inherent damping properties reduce resonance transmission from bearing to cartridge, contributing to a lower noise floor and improved channel separation.
• 9-Inch Effective Length: 233.75 mm effective length with 17.75 mm overhang provides optimized tracking geometry across the record surface for standard 9-inch tonearm geometry.
• Wide Cartridge Compatibility: 5 to 20 gram pickup weight range accommodates a broad selection of moving magnet and moving coil cartridges from the full range of major manufacturers.
• Standard Acoustic Solid Mounting Distance: 216 mm mounting distance for direct compatibility with Acoustic Solid turntable plinths fitted with WTB-series tonearm bases.
• 23.5 Degree Offset Angle: Optimized offset geometry for minimal tracking error across the playback arc of a standard 9-inch tonearm installation.
• 390 Gram Total Weight: Sufficient mass for stable bearing performance without overloading the tonearm mounting point on compatible Acoustic Solid plinths.

Technical Specifications

Frequently Asked Questions

What is the Acoustic Solid WTB 230?

The Acoustic Solid WTB 230 is a 9-inch carbon fiber arm tube tonearm from Acoustic Solid of Germany, with an effective length of 233.75 mm, a 23.5 degree offset angle, and compatibility with cartridges weighing between 5 and 20 grams. It is designed for use on Acoustic Solid turntables with WTB-series tonearm mounting bases and compatible third-party plinths with a 216 mm mounting distance.

How does the Acoustic Solid WTB 230 compare to the WTB 213 and WTB 370?

The WTB 230 shares the carbon fiber arm tube construction philosophy of the WTB series but is specifically specified as a 9-inch geometry arm at 233.75 mm effective length. The WTB 213 is a 9-inch arm and the WTB 370 is a 12-inch arm — the longer effective length of the 370 reduces tracking error across the record surface at the cost of a larger plinth mounting distance requirement. The WTB 230's carbon tube and 5 to 20 gram cartridge weight range position it as a versatile mid-range option within the WTB family, suited to a wide variety of cartridge types and compliance levels.

What cartridges are compatible with the Acoustic Solid WTB 230?

The WTB 230 accepts cartridges weighing between 5 and 20 grams, covering the majority of moving magnet cartridges from Ortofon, Nagaoka, Audio-Technica, and Sumiko, as well as a broad range of moving coil cartridges at low to medium compliance. For optimal tonearm-cartridge resonance matching, the effective mass of the WTB 230 should be considered alongside the cartridge compliance — Vinyl Sound Toronto can advise on specific cartridge pairings for the WTB 230.

Is the Acoustic Solid WTB 230 compatible with turntables other than Acoustic Solid?

The WTB 230 can be fitted to any turntable plinth with a standard 216 mm tonearm mounting distance and a mounting hole compatible with the WTB-series headshell and bearing housing geometry. Many third-party plinths and armboards from manufacturers such as Clearaudio, Pro-Ject, and Thorens can be drilled or adapted for WTB-series tonearms. Vinyl Sound Toronto can advise on compatibility for specific turntable and plinth combinations.

Does the Acoustic Solid WTB 230 come with a cartridge?

No. The WTB 230 is supplied as a tonearm only, without a cartridge. This allows the buyer to select a cartridge suited to their phono stage, system character, and budget. Vinyl Sound Toronto can assist with cartridge selection and alignment for the WTB 230.

Where can I buy the Acoustic Solid WTB 230 in Toronto or Canada?

The Acoustic Solid WTB 230 is available in Toronto, Canada at Vinyl Sound, an authorized Acoustic Solid dealer. Vinyl Sound's team can assist with tonearm installation, cartridge selection, alignment, and phono stage matching to complete the analog front end.