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[H1] The new Air Force IV is a new benchmark in analog sound.
A new benchmark in analog sound. Driven by TechDAS’ innovative ‘air’ technologies, this turntable realizes our vision of ultimate analog reproduction
The TechDAS Air Force turntables feature unique pneumatic technologies including air bearing that absolutely isolates the rotating platter and the record from any vibration. Additionally, our vacuum LP hold-down system clamps an LP onto the platter. With these “air” technologies, the Air Force turntables achieve an unparalleled sound quality, compared to conventional analog turntables.
MAIN UNIT
Chassis: One-piece chassis precision machined from solid aluminum alloy A5052. Silver anodized satin finish, 21.5kg
Platter: One-piece platter precision machined from solid aluminum alloy A5056, 8.7kg
Motor Unit: Precision machined aluminum alloy A5052. Silver anodized satin finish 4.1kg
Total moment of inertia: 1.017kg/cm2
Drive system: Belt-drive with double-side polished polyester fabric flat belt
Driving motor : External 2-phase 4-pole AC synchronous motor
Motor Power Supply : Digital rotational control system driven by power amplifier
Rotational speed: 33.3rpm, 45 rpm
Wow & Flutter: below 0.03%
Dimensions: 420.5 (W) x 168 (H) x 368 (D) mm
Total weight: 34.4 kg
Minimum dimensions for setting up: 521 (W) x 418 (D) mm
POWER SUPPLY UNIT
Power consumption: 50W
Dimensions: 350(W), 160(H), 270 (D) mm, 9kg
Minimum dimensions for setting up:　350(W) x 330(D) mm
INCLUDED ACCESSORIES
1x Tonearm Base for rear right or front right positions (drilled for specified tonearm)
1x Platter Cover
OPTIONAL ITEMS
Extra Tonearm Base (drilled for specified tonearm)
– For the rear left position, an exclusive tonearm base is required.
– Tonearm bases used on the rear right and front right positions are common with those for Air Force III/ Premium and Air Force V/ Premium
[H1] About TechDAS
TechDAS is the house brand of Stella Inc, the premier distributor of high-end audio in Japan. Stella Inc designs and develops TechDAS products that rediscover the joy of audio and re-activate high-end audio. The brand is working toward the fulfillment of our dream, which is to offer what is truly valuable to users. All products are made in Japan with subtle craftsmanship that elevates the enjoyment of music to an art-form.
“DAS” in TechDAS stands for “Digital Analog Supremacy” reflecting the commitment to the finest audio technology. This philosophy has created TechDAS products such as the Air Force analog turntable line which has gained worldwide reputation for its sound quality, accumulated know-how, and the latest in electronics and precise engineering technology.
“At Stella inc. we imported and distributed many analog audio products, but there was no product that was truly satisfying. Therefore I decided to refine the old Micro Seiki analogue turntables to offer an ideal product. This led us to develop a breakthrough product, the ultimate turntable solution – the TechDAS Air Force One.”

“The top-of-the-line model for the TechDAS Air Force turntable series with new integrated concepts and technologies further refining the sound, user-friendliness and external finish.
The Air Force One Premium analog turntable by TechDAS ushers in exquisite design concept to positively exploit the aerodynamic force equivalent to sound energy rather than springs or buffer materials. It is the ultimate mechanism based on a vibration damping design using “Air Force” and utilizes only high-precision finished parts with enough mass to completely avoid any “colour” to the sound, nothing is added or removed. Through the aerodynamic instrumentality of “Air Force” the real magnitude and essence of ultimate analog playback is now a reality. Adverse effects caused by various obstructive oscillations, which used to be arch-nemesis of analog turntables has been thoroughly wiped out by the Air Force.”
Hideaki Nishikawa
THE DESIGNER

[H1] Integrated concepts & technologies
The top-of-the-line model for TechDAS Air Force Turntable series has new integrated concepts and technologies refining the sound, user-friendliness and external finish. Air Force One Premium consists of three units: main unit (including motor), power supply / pump unit and air condenser / air charger unit.
Two models available:
Air Force One Premium with A7075 Upper Platter
Air Force One Premium with Titanium Upper Platter
Air Force” has three design concepts: Air bearing / Disc suction / Air suspension.
It is important for a turntable to achieve accurate and noise free stable rotation, which requires a platter with significant mass. Without compensation, over time this necessarily heavy-weight platter can cause deterioration in the bearings surfaces and cause friction vibrations or degradation of rotation accuracies.

Since its debut, the Air Force One has gained world-wide acclaim as one of the best analog turntables in the world. While the original Air Force One still remains radiant, TechDAS has pursued ways to bring about even higher standards in recent years: improved user friendliness, refinements in acoustics due to an evolution of technology, refined outer aesthetics by using new finishing techniques, and many more. All improvements have been incorporated in the Air Force One Premium.

Through a calibrated microcomputer adjustment circuit combined with a heavyweight platter, the turntable achieves a very high rotation accuracy beyond the boundaries of conventional belt-driven products and equivalent to that of a direct drive (DD) motor.
Refined main chassis aesthetics
The main chassis of the Premium employs a gloss finish which is achieved by surface polishing a black layer of aluminum. This deep gloss finish adds to the charm of the appearance.
Option of Titanium or Gloss Finished Super Duralumin (A7075) Upper Platter
For the upper platter of Premium, there are two options: Super Duralumin A7075 and Titanium. Please specify which option you prefer when ordering.
Tapered Spindle and Disc Stabilizer
Air Force One Premium features a tapered spindle to absorb any swaying of an off center LP. A disc stabilizer comes with the turntable as a standard accessory that will fit perfectly in with the spindle.

[H1] Advanced Air Suspension System
We use an advanced air suspension system with adjustment through continuous monitoring of air suspension level and air charger unit.
One of the major features of the original Air Force One is full air suspension, which requires occasional air input with the provided manual pump. The Premium features automatic and continuous monitoring of the air suspension level and the color of the indicator will change if air charge is required.
The Premium is also equipped with an exclusive motor pump for air charging. It automatically stops air filling when the appropriate amount of air has been charged, omitting troublesome labor for the user.
Double capacity air condenser allows even smoother air flow and more dynamic sound
The air condenser serves an important function and achieves consistent air bearing for the platter and vacuum hold-down of an LP. While the air condenser for the original Air Force One has a more than adequate version, as a result of pursuing improved sound quality, TechDAS has discovered that increasing the capacity will produce a more dynamic sound.
Therefore, the Premium has a double capacitance air condenser over the original model. This has elevated the sound to new heights in every respect including background blackness and dynamics.
Air Force One Premium set up on the Air Force Mounting Rack exclusively made for TechDAS turntables (optional). Air Condenser / Air Charger Unit on the middle level. Power Supply / Pump Unit on the bottom level.

MAIN BODY
Drive System
Belt Drive, Surface polished polyurethane fiber flat belt
Platter: Main Platter
SUS316L Non-magnetic forged stainless steel. Weight 19 kg
Platter: Upper Platter
Choice of A7075 (4 kg) or Pure TITANIUM (6 kg)
Motor
AC synchronous motor. Rotating speed controlled by DC amplifier.
Chassis
Three different material sandwiched structure
Rotation Speed
33-3/1 rpm / 45 rpm with precise speed adjustment function
Wow & Flutter
below 0.03% (W.R.M.S)
Minimum Dimensions for setting up
680 (W) x 480 (D) mm
Total Weight
73 kg
POWER SUPPLY & PUMP UNIT
Power Supply / Pump Unit
Power consumption: 60W
Dimension and weight : 430(W) x 160(H) x 240(D) mm, 10kg
Air Condenser / Air Charger Unit
Dimension: 430 (W) x 160 (H) x 240 (D) mm, 4kg
ACCESSORIES
Accessories Supplied
Tonearm base x 1 (drilled for specified tonearm)
Platter cover “The Platter Top” x 1
TechDAS Disc Stabilizer x 1
AC cable x 1
Optional Items & Accessories
Extra Tonearm Base (Stainless, Pure Titanium, Aluminum)
Special Damping Table
Air Force Mounting Rack

Building on the success of our hugely popular model – the Air Force III Premium, we can announce the additional variant: Air Force III Premium S.
The S model features our newly designed suspension feet which enhance the flexibility of installation in various environments as well as improving the sound performance by achieving higher vibration isolation.
[H1] Upgraded Air Force III Premium with New Suspension Feet
Weighing over 50 kilograms including the platter, the Air Force III Premium S sits on the new suspension feet that provide a robust platform and an outstanding vibration isolation.
The Air Force III Premium is thus available in two versions, the Air Force III Premium with rigid type feet and Air Force III Premium S. The choice of which model to choose can depend on the installation environment.
The suspension feet are also offered separately as a set of 4 pieces to existing Air Force III Premium owners who desire to upgrade their turntables with these new feet.

[H1] The design concept behind the Air Force III Premium & Air Force III Premium S
The weight and sound of an analog turntable have a strong correlation. In order to make a heavier turntable while keeping the chassis size to the original Air Force III, our team chose gunmetal for the platter of this model. This material is an alloy of copper and tin and was often used for audio equipment in the heyday of analog audio.
The platter for the Air Force III Premium is precision cast and surface polished with a solid structure, unlike most conventional gunmetal platters that have a hollow construction. This results is a heavy platter of 29 kg, more than three times heavier than the aluminum platter used in the original III which weighs in at 9 kg. With this new gunmetal platter, the total weight of the main unit is more than 50 kg.
As a result of the increase in total weight, an extended frequency range is delivered and dynamics are noticeably enhanced. At the same time it has achieved a significantly lower noise floor thanks to the use of our air bearing. Furthermore, as gunmetal is relatively a soft and tensile metal, you will notice that a subtle glow is added to the sound.
The chassis is made of solid aluminum just like the original model. The black anodized and highly polished surface contrasts very nicely with the gold colored gunmetal platter. With a minimal sized CNC machined aluminium chassis the Air Force III Premium affords maximum freedom during setup. The surface is finished in high gauge black anodized with a high gloss polish. Up to 4 tonearms, ranging from short (9”) to long (12”) tonearms can be fitted to the frame.
The Air Force Series embodies the highest standards and subtlety of Japanese craftsmanship in its build and finish. The sophisticated aesthetics represent our commitment to every detail.

[H1] Floating the platter with our air bearing technology
A conventional bearing unit supporting the platter would be subject to huge loads due to the weight and high inertia involved, and even the highest precision bearing could become impaired over time. In the TechDAS Air Force Series we have thus developed a unique air bearing method, where the platter floats and rotates in almost total silence, completely isolated from vibrations transmitted to the record from the floor, via the chassis and center spindle.
Furthermore, the weight of the platter does not place any load on the bearing. This ensures the performance will continue maintenance free for many years, avoiding effects of abrasion or sounds caused by friction. The Air Force III Premium has a precision cast gunmetal platter with precision coating which is also highly polished, and weighs in at 29 kg.
[H1] Vacuum LP hold down
TechDAS Air Force series features a vacuum LP hold down as an ideal solution to issues caused by warped records, as this function flattens a record onto the heavy weight platter surface and dramatically increases the tracing performance and sensitivity of the cartridge, reducing any strain on it and the tonearm. This unique system developed by TechDAS gently holds down an LP by maintaining appropriate pressure. We believe this is most important, as it will not cause any damage to the record unlike other turntables using high vacuum pressure.
[H1] Motor Unit
The Air Force III Premium has two 150W DC power amplifiers to drive its synchronous motor which provide a stable and powerful drive system. This ensures the correct rotation of the massive platter.
In operation and once the selected speed is achieved, the motor torque is then reduced automatically to below 50% to maintain accuracy of rotation. No servo control is used from this point as that may negatively affect the sound quality. However a sensor is constantly monitoring the rotational speed for perfect accuracy of operaton, and this data is fed back to the motor should any speed adjustment be required.
The Motor Unit is housed in a separate chassis with high gloss black anodized finish that matches the main unit.

[H1] The ultimate level of reproduction
TechDAS believe our turntables achieve the ultimate level of reproduction from vinyl. We are committed to pursuing an ideal analog reproduction system, one that equals or exceeds the highest standards and care used when the record was cut in the original production process. In the production of a record, a lathe carves a groove into a lacquer disc, and the disc is held down onto the platter using a vacuum.
The Air Force series re-enacts this same status in record playback to precisely extract and reproduce all information embedded in the groove, and achieving this without adding anything or sacrificing detail. A remarkably black background and low noise levels are made possible by using “air force”, and combined with our innovative rotation mechanism featuring exceptional vibration absorption, you can experience a new dimension of analog sound.

MAIN UNIT & MOTOR
Chassis
Precision machined aluminum alloy (A5056) Black anodized and high gloss polished
Weight
21 kg
Platter
Gunmetal
Surface protection coating
Platter Weight
29 kg
Total moment of inertia
3,506 kg・cm2
Drive System
Belt-drive, polished and nonflexible polyurethane fiber belt
Motor
AC synchronous motor
Rotation speed controlled by DC amplifiers
Rotation speed
33.3 rpm / 45 rpm
Wow & Flutter
below 0.03 %
Dimensions
473 (W) x 170 (H) x 363 (D) mm
Minimum Dimensions for setting up
564 (W) x 413 (D) mm
Total Weight
55 kg
PUMP / POWER SUPPLY/ AIR CONDENSER UNIT
Power consumption
50 W
Dimensions
430 (W) x 175 (H) x 370 (D) mm
Weight
14 kg
Minimum depth for setting up
430 (D) mm
ACCESSORIES
ACCESSORIES SUPPLIED
Tonearm base x 1 (drilled for specified tonearm).
Platter Cover x 1.
Cables, Air hoses, Platter setup tools, Users manuals.
OPTIONAL ITEMS & ACCESSORIES
Extra tonearm base.
Disc Stabilizer.

Our most affordable model that preserves the “Air Force” technologies
The Air Force V has been developed to deliver another dimension of analog sound to more analog enthusiasts at a more affordable price. This model has a similar sized compact chassis as the Air Force III, and by designing an elaborate drive system successfully reduces any motor vibrations.
Thus we have achieved an integration of the motor in the plinth. The result is an even more compact turntable without a separate motor unit that can be fitted with up to four tonearms.

[H1] Integrated concepts & technologies
The Air Force V consists of two units: the Main Unit (including built in motor) and the Pump / Power Supply / Air Condenser Unit.The Air Force turntables feature unique and refined “air” technologies which include our air bearing that allows the player to flow on a very thin layer of air.
This mechanically isolates the rotating platter and the record from any vibration. Additionally our vacuum hold-down system clamps an LP onto the platter itself.

With these technologies the Air Force turntables have distinguished themselves from conventional turntables in terms of sound and performance.
While most turntables on the market deliver a similar sound from that of the old analog age, in our opinion, analog sound should not remain static, much the same as we have witnessed decades of advancements in the digital audio sector.

[H1] Advancements in analogue sound
We at TechDAS believe that the analog sound we produce has gone beyond previous levels of signal to noise ratios and is more inline with the signal to noise ratios achieved in modern digital audio. And TechDAS “Air Force” technologies bring about the ultimate state-of-the-art analog sound.

MAIN UNIT & MOTOR
Chassis
Aluminum (A5052) / Super duralmin (A7075) assembly Satin silver anodized finish
Weight
11 kg
Platter (main and sub platters):
Precision machined aluminum (A5056).
Black anodized and high gloss polished.
Platter Weight
6.7 kg
Total moment of inertia
734 kg・cm2
Drive System
Sub-platter belt drive
Motor
AC synchronous motor built in the main chassis
Rotation speed
33.3 rpm / 45 rpm
Wow & Flutter
below 0.03 %
Dimensions
312 (W) x 168 (H) x 368 (D) mm
Minimum Dimensions for setting up
413 (W) x 418 (D) mm
Total Weight
18 kg
PUMP / POWER SUPPLY/ AIR CONDENSER UNIT
Power consumption
50 W
Dimensions
350 (W) x 160 (H) x 270 (D) mm
Weight
9 kg
Minimum depth for setting up
330 (D) mm
ACCESSORIES
ACCESSORIES SUPPLIED
Tonearm base x 1 (drilled for specified tonearm).
An extra cost may be required according to the tonearm.
Platter Cover x 1.
Cables, Air hoses, Platter setup tools, Users manuals.
OPTIONAL ITEMS & ACCESSORIES
Extra tonearm base.
Disc Stabilizer.