ADC LMF's Tonearms

 The ADC LMF  Carbon Fibre Low Mass Tonearms

The LMF-1 has an integrated head for lowest mass.

The LMF-2 has a removable head.

 We chose carbon fibre because of its low mass to high tensile strength ratio. Then we were able to further lower the mass by abandoning the traditional tubular shape and engineering the fully tapered profile. Carbon fibre has yet another asset which anyone with a serious love of quality music reproduction will love. The inherent properties of the material are antiresonant.

The combination of a fine cartridge and the LMF low mass tonearm will not interact with typical building resonant frequencies or with typical record warp frequencies. The LMF tonearms are styled in mat-black to blend into the design of any high quality turntable.

 The cueing is viscous damped in both directions for optimum stylus care. Tracking forces are calibrated in 1/10 th gram increments with a precision click-stop dial. Anti-skate adjustments are infinitely variable to 2 grams.

The LMF tonearms each come with three cylindrical counterweights to enable you to achieve zero balance with minimum effective tonearms mass, regardless of the weight of your favorite cartridge even up to 11 grams. 

 The LMF-2 has a removable head.

This allows the audiophile whose tastes require alternative phono cartridges to make premounted changes in seconds, both permit the use of the highest compliance cartridges with lowest tracking forces.

 The pivot system uses stainless steel instrument bearings, which are hand picked and perfectly matched to both the outer and inner races for virtually frictionless movement without the vulnerability to damage found with typical "knife-edge" bearing sytems.

 Specifications

Tonearm Lenght:  237 mm (9,33") Pivot to stylus Tip

Head Offset Angle:  20 °

Stylus Tip Overhang:  15 mm ( ,590")

Tracking Angle Error:  Zero error at 82 mmR (3,2"R)

Anti-Skate Adjustment:  0 to 2 grams

Height Adjustment Range:  35 mm (1⅜") to 80 mm (3⅛") from base to cartridge mounting surface

Rear Clearance Radius:  76 mm (3")

Tonearm Overall Length:  313 mm (12.33") rear to stylus Tip

Cartridge Weight Range [LMF-1 / LMF-2]:  4 - 11 grams / 3 - 11 grams

Zero Balance Weights [LMF-1 / LMF-2]:  7, 15 and 30 gram / 15, 30 and 45 gram

Stylus Force Range:  Calibrated 0 to 1,5 gram in 0,1 steps

Bearings Type:  Instrument type stainless steel ball bearings factory adjusted for maximum stability and low friction angular contact

Effective Arm Mass[LMF-1 / LMF-2]:  5,5 grams / 8 grams

Arm Wiring:  18 pF per channel

Lead Wires (stereo):  220 pF per channel (normal)

leadWires (CD-4):  100 pF per channel (available accessory)

Resonances

Arm and Head Material:  Non-resonant Carbon Fibre molding

Counterweight Assembly:  Elastometric mounting

Arm-Cartridge Resonance:  Nominal 10 Hz with typical high-compliance cartridges

Tonearm Lifter

Cue Control:  lever Control

Damping:  Viscous oil daamped in both Up and Down directions

Height Adjustment:  Factory adjusted; adjustable if required