- Turntable System
LFT1M2
- A flagship model heavy turntable. The weight of the granite base, the brass platter, and the air floating create the ultimate rotation.
- Super heavyweight and high rigidity
- Non-servo motor drive
- Air floating linear arm
Features
- Super heavyweight and high rigidity
- In the playback of records, which record sound vibrations in microns, unnecessary vibrations are suppressed as much as possible. Low-frequency vibrations are suppressed by weight, and high-frequency vibrations are suppressed by air. The chassis, including the granite base and brass platter, has a total weight of over 100 kg, and both the base and platter have an air floating structure with high-precision machining of 5μm to suppress the transmission of unnecessary vibrations.
detail
Base
It uses 40 kg of granite that has been stabilized over 5 million years. The granite's weight and vibration-damping characteristics suppress unnecessary vibrations from the floor surface. The granite is processed to JIS 0 grade with a flatness of 5μ, equivalent to a stone surface plate, which is the standard for manufacturing mother machines (machine tools), and a levitated plate rotates on it while maintaining a distance of several tens of μ.
Platter
To obtain stable rotation, a brass platter 344 mm in diameter and weighing 28 kg rotates with a high moment of inertia. The weight of the platter is supported by air pressure, and only a few hundred grams of lateral force is applied to the bearings, resulting in a structure free from unnecessary vibration and long-term reliability.
Stabilizer
The part where the platter touches the record disc is tapered, and the record disc is held in place from above by a heavy stainless steel stabilizer. The platter and the record are closely adhered to each other to suppress unnecessary vibration when the needle tip traces the record.
- Non-servo motor drive
- Accurate sound pickup requires constant, unwavering platter rotation. In the method of obtaining that rotation by servo control, the speed control cycle becomes a source of noise in the audio band. Therefore, open-loop control is employed, in which no servo control is applied. The 28 kg brass platter is rotated only by a high moment of inertia. Although there is a drawback that it takes a long time to start up, it has realized a high level of quietness without generating noise.
detail
XFD System
CS Port's unique drive system, which forms a direct digital voltage generator based on a frequency-accurate crystal oscillator to provide a fluctuation-free, high-precision voltage. This allows the coreless motor to rotate at a constant speed without speed control, rotating the 28 kg brass platter with only a high moment of inertia.
Thread drive
A thread drive made of aramid fiber, which is stronger than steel, transfers the force of the motor to the platter. While this has the disadvantage of taking a long time to start up, it does not easily transmit motor vibration and has little elongation, so it drives the platter reliably.
- Air floating linear arm
- Air floating system absorbs unnecessary vibration, just like the platter. It moves smoothly and accurately traces by the force of air. In addition, the linear tracking method realizes an ideal pickup that eliminates tracking errors between the outer and inner circumference in the same trajectory as record cutting.
detail
Air Float Structure
Mechanical vibrations traced by the needle tip are reflected back through the stylus, cartridge body, shell, and arm at the mechanical contact points and returned to the needle tip, adding even something other than the original audio signal. The LFT1M2's air-floating structure damps unnecessary vibrations from the needle tip and external sources, and transmits only the vibrations emitted by the needle to the generator coil.
Linear Tracking
Record grooves are irregular in spacing between large and small audio signals, and the circumferential speed also differs between the outer and inner circumference. The LFT1M2 adopts linear tracking, the same as the cutting race used in the record production process. The smooth movement of sound grooves by the air floating structure enables stable tracing even with the linear tracking method.
- Highly Quiet Air Supply
- The air supply is equipped with a highly reliable pump used in medical equipment to powerfully supply the volume required by the platter and linear arm. A double-sealed sound leakage and vibration prevention system keeps the system quiet enough to be installed in a listening room. Driven by 12 VDC supplied from the motor drive unit, the motor type pump used in medical equipment, etc., ensures stable operation over a long period of time.
Specification
Model LFT1M2
Material
Base | Granite
Platter | Brass
Motor drive | Granite and Aluminum
Tonearm unit | Granite and Aluminum
Air supply | MDF
Dimensions
Base | 358W×100H×358D mm
Platter | φ344×43H mm
Motor drive | 130W×126H×358D mm
Tonearm unit | 130W×100H×358D mm
Air supply | 140W×130H×330D mm
Weight
Base | 40 kg
Platter | 28 kg
Motor drive | 8 kg
Tonearm unit | 12 kg
Air supply | 3 kg
Motor Control
Quartz oscillator, No-Feedback XFD system
Drive System Thread drive (Aramid)
Motor DC coreless low-noise motor
Turntable Speeds 33⅓, 45rpm
Rotation Precision ±0.3%
Wow 0.2% or less
Flutter 0.04% or less
Tracking Method Air float linear tracking
Arm Lift Manual
Azimuth, Length, Leveling Screw Adjustment
Applicable Cartridge Weight
20-40 g (Including headshell)
Applicable Stylus Pressure 1.5-5 g
Type Static balance
Output Terminal DIN 5P
Power Supply
AC100/120/200/240 V, 50/60 Hz
DC12 V (Air supply)
Power Consumption 40 W
Accessories AC cord, DC cord, Air tube φ6, φ4, Drive thread, Phono cable (balance or unbalance), Headshell, 3 types of arm balancers, Level, Setting gauge, Lubricating oil, Platter handle, Hexagonal wrench
Sold Separately Player Board LPB1
Warranty Period 5 years
○ Since the motor is not servo controlled, it takes time to reach a constant speed.
○ Due to the use of granite, the pattern and color tone of the stone may vary depending on the production lot.
○ Dimensions do not include legs, knobs, or terminals.
○ The descriptions are current as of January 2025.
○ The appearance and specifications are subject to change without notice.
