We mean

The Korf Audio TA-SF9 Series II tonearm is designed for listeners who value mechanical precision over sonic gimmicks. It follows an uncompromising technical approach, where the bearing design, material selection, and geometry are consistently optimized for low friction, controlled resonances, and clean energy dissipation. Sonically, the TA-SF9 is calm, structured, and free of any emphasis. It's not a tonearm that tries to impress – but one that works unobtrusively and effectively.

Product presentation

The TA-SF9 Series II is a 9-inch tonearm with medium effective mass, designed for a wide range of modern moving-coil and moving-magnet cartridges. At the heart of its construction is the horizontal Flexure pivot bearing , which operates entirely without conventional plain or ball bearings. Instead, horizontal movement is achieved via an elastic metal structure that exhibits virtually no breakaway torque and mechanical friction.

A precise hybrid ceramic bearing handles the vertical movement. This combination allows for extremely sensitive stylus movements, even with small modulations, without introducing mechanical noise or bearing artifacts into the system.

The tonearm tube is made of stainless steel and is rigidly bonded to an aluminum oxide ceramic headshell. This rigid, homogeneous unit eliminates transitions that could store or reflect energy. Internal wiring uses high-quality OCC stranded wire, which runs continuously from the headshell to the 5-pin connector.

The Series II version brings revised adjustment options for azimuth and VTA, an optimized base, and higher reproducibility in the setting.

Special features / Features

Flexure pivot horizontal bearing
The horizontal bearing operates entirely without friction surfaces. There is no breakaway torque, no bearing noise, and no wear. Especially during quiet passages and with warped records, tracking remains stable and controlled.

Hybrid ceramic vertical bearings
The vertical movement is achieved via high-precision ceramic bearings with very low friction and high long-term stability. This ensures that the needle guidance remains precise even with dynamically demanding materials.

Ceramic headshell
The integrated headshell made of alumina-ceramic combines high rigidity with very low inherent resonance. The firm connection to the tonearm tube prevents micro-movements and ensures clean impulse transmission.

Magnetic anti-skating
The antiskating mechanism works without contact, using magnetic force. This eliminates additional friction points or mechanical noise that could affect tracking performance.

High system compatibility
With an effective mass of around 19 g, the TA-SF9 is suitable for many modern MC systems as well as for selected MM cartridges.

Technology & Materials

The tonearm is designed as a complete mechanical system. Stainless steel arm tube, ceramic headshell, precision bearings, and stable base work together seamlessly. The material mix is ​​deliberately chosen to dissipate resonances in a controlled manner, rather than dampening them.

Internal wiring uses oxygen-free copper in a Litz configuration. Transitions and connectors are minimized. The base clamps the tonearm securely in the turntable chassis to prevent energy loss through micro-movements.

All mechanical components are precisely manufactured, without decorative elements or superfluous controls.

Sustainability & Manufacturing

Korf Audio manufactures in small batches, focusing on durability and serviceability. The TA-SF9 is entirely mechanically constructed, without exotic or short-lived components. Bearings, wiring, and adjustment elements are designed for long-term use. The design follows functional principles and avoids fleeting trends.

Technical specifications

Tonearm length (effective) 229 mm
Pivot-to-spindle distance 214 mm
Offset angle 22 degrees
Effective mass approx. 19 g
Headshell material alumina ceramic
Arm tube material: stainless steel
Horizontal bearing flexure pivot
Vertical storage hybrid ceramic
Magnetic anti-skating
Internal cabling OCC-Litz
5-pin DIN connector
Maximum system weight without additional weight approx. 15 g
Maximum system weight with additional weight approx. 25 g

Test reports / Press reviews

In German specialist reviews, the TA-SF9 is described as exceptionally well-engineered. The frictionless bearing design and the calm, controlled sound reproduction are particularly praised. The sonic characteristics are described as neutral, precise, and structured, with stable soundstage imaging and clean bass control.

It is repeatedly emphasized that the tonearm adds no coloration of its own, but rather makes differences between cartridges clearly audible. The simple, reproducible setup of the Series II is cited as a significant improvement over previous versions.

Background / History / Development

Korf Audio originated from the approach of technically rethinking classic tonearm concepts. Instead of varying proven bearing designs, they developed the Flexure pivot bearing, a solution that fundamentally eliminates mechanical friction. The TA-SF9 is one of the best-known results of this development philosophy and has been refined through several iterations. The Series II represents an evolutionary development, not a complete redesign.

Basic knowledge

Flexure bearings
A flexure bearing utilizes the elastic deformation of a metal instead of rotating bearing surfaces. This results in virtually no friction and no wear.

Effective mass
The effective mass of a tonearm determines which cartridges are mechanically the best fit. Medium-high values ​​allow for greater flexibility in cartridge selection.

Antiskating
Antiskating counteracts the inward pulling force when playing a record. Magnetic systems operate without contact and friction.