×

Korf Audio TA-AF9 Series II 9” Ceramic Armtube Tonearm

Reference:
2982a
Condition:
New
€3,800.00 (tax incl.)
Options
Available for immediate shipping.

Add to wishlist
Description

Korf Audio TA-AF9

Korf Audio is the only manufacturer in the world that produces headshells entirely made of ceramic. It was therefore natural to extend the use of ceramic to the tonearm tube as well.
At the same weight, an alumina ceramic tube is nearly twice as strong as steel. This means it is six times more robust than a comparable aluminum tube, and four times stronger than titanium.

TA-AF9 is a complete rethink of what a tonearm should be. 
The revolutionary design in a familiar easy to use shape.

- Improved Series II Model

- Affordable super quick worldwide delivery

- Now with 3 year warranty

- Choose between round compact JIS-type mounting base or a sliding SME-type base. Or get both!

What makes the TA-AF series special?
All Korf tonearms are a clean sheet rethink of what a tonearm should be. The TA-AF series takes our priorities to the max: quality of motion, rigidity, low energy storage, signal integrity, stability and longevity.

  • For the motion, we use aerospace-grade, zero stiction flexure bearings in the horizontal axis. For the vertical axis, we use full ceramic silicon nitride bearings. Nothing comes close for lower starting torque, and for the quietness too.
  • Korf Audio is the world's only maker of fully ceramic headshells. So it's only natural that we have extended the use of ceramics to the armtube too.
  • At the same mass, alumina ceramic arm tube is almost twice as strong as steel. This means it's 6x stronger than a similar aluminium tube, or 4x stronger than titanium one
  • We use "camera finished" brass parts for even more rigidity and precision
  • Even the wiring is improved: we use super lightweight (but 100% covering) copper shielding over Cardas Litz wires.


How does this benefit you? You will get everything Korf tonearms are known for: unmatched clarity, holographic imaging, real life dynamics, true tonality, sparkling highs and a really deep bass. Only more so. Expect to be drawn into music like never before. And don't be surprised if you find yourself rediscovering your albums all over again.

Technical Specifications

Pivoting gimbal tonearms with fixed headshell

  • Available models: TA-AF9 / TA-AF10

Dimensions and Geometry

  • Effective length:

    • TA-AF9: 229 mm

    • TA-AF10: 245 mm

  • Pivot-to-spindle distance:

    • TA-AF9: 214 mm

    • TA-AF10: 230 mm

  • Offset angle: 22°

Mechanical Characteristics

  • Effective mass: 21 g

  • Horizontal axis bearing: Flexure pivot

  • Vertical axis bearings: Ceramic rolling bearings

  • Armtube material: Alumina ceramic

  • Headshell material: Alumina ceramic

  • Balance type: Static

Cartridge Compatibility

  • Minimum cartridge mass: 5 g

  • Maximum cartridge mass: 15 g

  • Maximum cartridge mass with included additional counterweight: 25 g

Connections and Wiring

  • Cable connector: 5-pin MDIN, male

  • Internal wiring: 6N OCC Litz

Mounting

  • Mounting types: JIS/Linn (minimum Ø28 mm hole), SME

Weight

  • Mass without cartridge and mounting collar (max): 500 g

Hey, what's the deal with the Series II? What changed?


We are always looking for ways to improve. Through three years of production, we have learned enough to take the performance of our tonearms to the next level. The sonic difference is really audible on full-range systems. Here's what we have done:

  • Stainless steel vertical column, giving a more solid foundation to the whole tonearm
  • Steel vertical shaft for deeper and more defined bass
  • Internal redesign for even more rigidity
  • Simpler, cleaner, more premium look
  • Completely new azimuth adjustment mechanism for smoother setting
  • Warranty extended to 3 years now
  • We used this opportunity to completely rid the tonearm of all structural set screws. Now the only one left is the one holding the arm lift

Features

  • Excellent rigidity and quality of motion
  • Zero-stiction flexure bearing
  • Drop-in replacement for 9" Linn and Jelco tonearms
  • Unique ceramic Korf HS-A02 headshell included
The Korf tonearms are a clean sheet rethink of what a tonearm should be. We focused on our audio priorities: quality of motion, rigidity, low energy storage, signal integrity, stability and longevity.

  • Korf tonearms are the only ones in the world to use aerospace-grade, zero stiction flexure bearings
  • Korf Audio is the world's only maker of fully ceramic headshells
  • Stainless steel arm tube is 3x stronger than aluminium, 2x stronger than titanium

Not included, but needed for operation:

  • 5-pin MDIN cable to connect your tonearm to your amplifier 
  • Pickup cartridge. If you are curious about compliance and effective mass compatibility, please use our calculator.
  • An electronic downforce scale

If you are mounting the tonearm on a wooden plinth, suitable wood screws should be sourced separately.

Flexure Pivot Horizontal Bearing
Monolithic flexure pivots are almost a hundred times more expensive than the usual rolling bearings. For that, you get amazing advantages:

  • Zero starting torque/no stiction 
  • No bearing chatter 
  • Great tracking of warps 
  • Less inner groove distortion
  • Lasts forever — no servicing, no lubrication
  • Not influenced by temperature/humidity/dust/age
  • Easy to replace if broken
What does a flexure bearing sound like? Smooth! Once you experience a tonearm that is free of bearing chatter, you will recognize the chatter's sonic signature in other designs. 
Steel Arm Tube
Based on a large study of arm tube materials, we chose a steel tube with 0.5mm wall thickness.

  • High bending resistance: 3 times higher than aluminium, 2 times higher than titanium of the same mass 
  • Low energy storage 

Why is steel seldom used in today's tonearms? It's not possible to simply replace an aluminium or titanium arm tube with a steel one. A whole new design is called for.
Widely Spaced Vertical Hybrid Ceramic Bearings
We did a study of vertical bearings's influence on sound, and chose hybrid ceramic rolling bearings for the task:

  • Better strength and precision 
  • Less chatter compared to closely spaced bearings 
  • Low starting torque/stiction 
  • Better resolution
  • Sharper dynamics
  • Better sibilance control
  • Less inner groove distortion 
  • Need no servicing or lubrication
Clamping Plinth Mounts 
For tightest plinth attachment possible. They give:

  • Better mounting precision 
  • Ease of adjustment 
  • Better plinth coupling
Magnetic Antiskating 
Magnetic antiskating has zero stiction. 

It would be a real shame to spend so much effort (and money) on our beautiful bearings, and then ruin their performance with a weight on a pulley. Or with a sliding lever.

Our magnetic antiskating is calibrated and uniform—the biasing force remains the same from the outer to the inner grooves.
Custom Headshell Connector 
To fully preserve the mechanical performance of both our unique ceramic headshell and the armtube, we designed our own connector:

  • Steel load-bearing part; aluminium alloy locking collar
  • Press-fitted into an armtube
  • Spring loaded, gold plated contact pins
  • Nylon isolator
Simple and Effective Alignment Gauge
To align your cartridge, with most other tonearms you need a protractor. It is fiddly, imprecise, hard to use, and puts your valuable cartridge or stylus at risk of damage.

TA-SF9R comes with a precise alignment gauge. It's easy to set up your cartridge exactly right in minutes. Even away from your turntable, at a comfortable well lit desk.
What Makes Korf Tonearms Special?
The Korf tonearms are a clean sheet rethink of what a tonearm should be. We focused on our audio priorities: quality of motion, rigidity, low energy storage, signal integrity, stability and longevity.


You will immediately hear the sonic benefit: Korf tonearms offer unmatched clarity, holographic imaging, real life dynamics, true tonality, sparkling highs and a really deep bass.
Read moreShow less
Product Details
2982a
Designer
Reviews
No comments

Leave a review

  • Quality:
Describe this product using simple and short words.
Upload images:
Drop images here or click to upload.
Disqus
You may also like

Settings

Menu

Create a free account to use wishlists.

Sign in