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Avid HIFI Acutus Reference Mono Turntable

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ACUTUS REFERENCE MONO

Instantly recognizable, the luxurious chrome finish and muscular appearance make the Acutus more than a timeless icon, it is a striking piece of audiophile art.

Setting you on a compulsive journey of musical rediscovery, so startling is the naturalness and intimacy of the sound, it truly enters your space and deep into your soul, leaving you reaching for the next record.

"Beautifully made, compact, easy to set up and maintain, the only reason not to want it is the high-end cost. Aaah..the price of luxury."  

 

ULTIMATE EXPERIENCE

Offered in three levels with the Reference Mono being the pinnacle of performance, it is an unashamed indulgence that offers a no-cost compromise at vinyl reproduction.

Setting a standard of musical reproduction others aspire to achieve is the ultimate engineering masterpiece for those wishing for the ultimate listening experience.

 

KEY FEATURES

  • Twin Mono Power Supply
  • Unique Sapphire Bearing  
  • Vibration Tuned Sub chassis
  • Frequency Adjustable Suspension

BEYOND IMAGINATION

When seeking perfection, power is everything and the Mono is in a class of its own. The sonic gains are not a subtle subjective difference but an immediately obvious improvement in all aspects that goes way beyond any expectation of what you thought possible from a vinyl record.

  
-John Bamford 

Setting the Reference Mono apart from the other Acutus versions is the gigantic power supply. Most regard a turntable power supply as just that, a turntable power supply with little more thought, but just the size of the Mono PSU lets you know otherwise.

With a DSP-controlled Pre-Amp that regulates and fine tunes speed and Twin Mono Power Amplifiers independently driving each motor coil, the leap in sonic performance is nothing less than staggering. The difference is not a subtle subjective difference but an immediately obvious improvement in all aspects that surpasses expectations.

Lower noise floor, an extension of both bass and treble responses, and a significant dynamic improvement surpassing the Acutus Reference model. But even more startling is the naturalness and intimacy of the performance as it truly enters your space and deep into your soul.

The Acutus Reference Mono SP is an unashamed indulgence that offers a no-cost compromise on vinyl reproduction.

Our hand-assembled high torque AC synchronous motor spins the platter up to speed within seconds. Ten times more powerful than conventional turntable motors, this provides the ultimate control and stability. With twin round section drive belts the suspension is free to move without inducing speed variations common with flat belt designs.

Our unique two-stage clamp performs dual functions, critical to the ultimate sonic performance you hear. The first operation grounds the record to the main bearing, allowing vibration caused by the stylus to pass into the sub-chassis.

Reducing the noise floor of the record vastly improves the sound you hear and there is less damage or wear to records due to mistracking.

The second operation reflex clamps the vinyl flat to the platter surface, eliminating warps and air pockets underneath. The platter mat itself is a unique resin that reflects most vibration, keeping it in the record so it passes more quickly through the bearing into the sub-chassis.

The 10Kg Chrome plated aluminum platter is the focal point of the Acutus.

Secured with sixteen fixings, the 10mm aluminum disc which has had the resin mat cast and machined offers the perfect record interface. The mat reflects the most vibration except for very high frequencies, which after entering the platter body are rapidly constrained and damped by the nickel and chrome layers.

The Acutus bearing spindle is the longest of all our turntables and is press fitted into the sub-chassis. Being fixed, it is an inverted design so that the contact point is at the top and naturally has a low center of gravity. At the top of the precision ground and tapered spindle a tungsten carbide ball mates with a unique design sapphire jewel, keeping the bearing point in a fixed position with zero lateral movements. Doing this eliminates rumble noise on all other turntables, and the self-lubricating sleeve means no metal-to-metal contact during operation, making our bearing totally silent and maintenance-free for life.

It is critical for sound quality that the tonearm and bearing are rigidly coupled, any relative movement between them and information is lost forever. Our unique one-piece multi-fold aluminum casting provides maximum strength where required but allows for movement in non-critical areas, accepting the fact that nothing is totally rigid.

To eliminate the vibration from the record passed through the bearing, the casting is coated with a damping media of specific thickness so that both high and low frequencies dissipate with linearity and time frame, giving a neutral sound.

Our adjustable suspension system allows each supporting spring to be tuned to the same frequency regardless of the load. This means that single or twin tonearm weights of up to 3Kg can be accommodated, the suspension will be balanced and a perfect piston bounce achieved. With an isolation frequency of 2.5Hz, the pickup cartridge will not mistrack, locked into position and all external vibration blocked.

Specifications

DRIVE:

TWIN BELT DRIVE

SPEEDS:

33.3 & 45.0RPM

PLATTER MASS:

ALUMINIUM 10KG

BEARING:

INVERTED STAINLESS STEEL

THRUST POINT:

TUNGSTEN CARBIDE/SAPPHIRE

SUSPENSION:

3 POINT SPRING Vertical 2.5Hz, Lateral 4.5Hz

TONEARM FITTING:

SME TEMPLATE

ADAPTERS AVAILABLE:

YES: SINGLE OR TWIN TONEARMS

MOTOR:

HAND BUILT 24V 140mNm AC Synchronous

POWER SUPPLY:

DSP VARI-SPEED CONTROL UNIT

VOLTAGE INPUT:

100-240VAC 50/60Hz 20 Watts Max.

DIMENSIONS:

Turntable (overall) 460 x 400 x 210mm (WxDxH)
Turntable (footprint) 410 x 360mm (WxD)
P.S.U. 500 x 450 x 240mm (WxDxH)

NET WEIGHT:

19.0Kg (42lb) turntable only
52.0Kg (115lb) psu only


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