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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.



H.H. Scott '59





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


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2 comments:

  1. UnknownAugust 11, 2020 at 11:40 AM

    Ottimo ho uno che uso forse da +di 35 anni e se ne trovassi uno in ottime condizioni lo acquisterei!!!

    ReplyDelete
  2. UnknownJanuary 9, 2021 at 8:33 PM

    HI DEAR. WHERE CAN I BAY LMF-2 TONEARM?

    ReplyDelete

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