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Audio Technica AT-33xMONO/II

Dual Moving Coil Monaural Cartridge

Condition: New
Warranty: 2 Years
Colour: Cyan
HTFH Cat. No.: EB2331
  • AT33x Series dual moving coil monaural cartridge with conical nude stylus
  • Preserves the warmth and fullness of acoustic instruments, such as those captured on mono jazz recordings from the 1950s and ’60s
  • “True Mono” dual moving coil design only generates electrical signal from horizontal movement for exceptionally clear monaural sound
  • Samarium cobalt magnet and pure iron yoke (shaped for optimal monaural sound reproduction)
  • Conical nude stylus tracks the centre of the record groove for reliable performance and excellent fidelity
£349.00 Each

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Audio Technica
Audio Technica AT-33xMONO/II
Audio Technica AT-33xMONO/II Audio Technica AT-33xMONO/II Audio Technica AT-33xMONO/II

Overview

The latest update to the venerable AT33 Series – the first extensive overhaul in years – brings new warmth and fullness to your favourite music. Incorporating technological and material improvements, including our first use of die-cast zinc at the base of the cartridge to ward off unwanted resonance and improve expressiveness in the mid to low frequencies, the AT33x Series cartridges let you hear the finest details across the audio spectrum. 

The AT33xMONO/II features a “True Mono” dual moving coil design that is unaffected by any vertical noise components picked up from the record groove, instead generating electrical signal only from horizontal movement. This results in exceptionally clear monaural sound with a more substantial low end and reduced surface noise. The dual mono coil design is also ideal for mono playback on a stereo system. 

To further enhance its monaural performance, the cartridge is equipped with a 0.65 mil conical nude stylus, which is perfect for tracking the constant width and depth of mono record grooves. Our newly developed suspension mechanism uses piano wire for even more tracking accuracy, lowering the dynamic compliance slightly for more substantial audio, particularly in the mid-low range.  

The cartridge’s composite body, made of die-cast zinc, aluminium, and high-rigidity polymer, reduces and disperses resonance across the entire body, resulting in balanced, natural sound reproduction that doesn’t favour particular frequencies. PCOCC (Pure Copper by Ohno Continuous Casting) coils ensure pure, smooth signal transmission, while the samarium cobalt magnet and pure iron yoke (shaped for optimal monaural sound reproduction) provide highly efficient power generation and warm, richly textured playback that is particularly suitable for mid-20th-century mono jazz recordings.

Like all AT33x Series cartridges, the body of the AT33xMONO/II includes threaded holes for easy mounting (just two screws required). These threaded holes are especially useful when mounting the cartridge to an integrated tonearm.

Material Difference

The AT33xMONO/II’s rigid duralumin pipe cantilever, which tapers toward the conical stylus tip for improved response, is linked with a firm suspension mechanism, slightly lowering the dynamic compliance. “True Mono” PCOCC coils are positioned at the cantilever’s fulcrum to ensure pure transmission of horizontal mono signals.

Sound Body

Each AT33x Series cartridge body is constructed of three distinct materials – die-cast zinc, aluminium, and high-rigidity polymer – optimally arranged to reduce and disperse resonance across the cartridge body so that no frequency predominates during playback. Threaded holes are incorporated into the body for easy mounting.

Technical Specification

Audio Technica AT-33xMONO/II

AT33x Series dual moving coil monaural cartridge with 0.65 mil conical nude stylus 
Balanced, high-resolution sound reproduction brings out all the details in a piece of music  
“True Mono” dual moving coil design only generates electrical signal from horizontal movement for exceptionally clear monaural sound with a more substantial low end and reduced surface noise 
PCOCC (Pure Copper by Ohno Continuous Casting) coils provide pure, smooth signal transmission 
Neodymium magnet and permendur yoke (shaped for optimal monaural sound reproduction) maximise energy efficiency for high-resolution, responsive playback 
Composite cartridge body (die-cast zinc, aluminium, and high-rigidity polymer) reduces resonance throughout the body for balanced, natural sound reproduction 
Highly rigid and dense die-cast zinc material is used at the base of the cartridge to suppress unwanted vibrations and improve the expressiveness of the mid-to-low frequency range 
Threaded mounting holes make it easier to mount the cartridge to a headshell, especially one integrated into a tonearm 
0.65 mil conical nude stylus tracks the centre of the record groove for reliable performance and excellent fidelity 
High-hardness duralumin pipe cantilever 
Newly developed suspension mechanism and rubber damper design (with lower dynamic compliance than other A-T cartridges) enable the cartridge to be used with a variety of tonearms 
Thick gold plating on the terminal pins reduces contact resistance and enhances sound quality 
Crafted and hand-finished by artisans in Japan

 

Frequency Response
20 to 30,000 Hz

Vertical Tracking Angle
20°

Tracking Force
2.0 to 2.4 g (2.2 g standard)

Recommended Load Impedance
≥ 100 ohms (when head amplifier connected)

Coil Impedance
10 ohms (1 kHz)

DC Resistance
10 ohms

Coil Inductance
27 μH (1 kHz)

Output Voltage
0.42 mV (1 kHz, 5 cm/sec., horizontal signal)

Output Balance
1.0 dB (1 kHz)

Horizontal/Vertical Output Ratio
25 dB (1 kHz)

Stylus Shape
Nude conical

Cantilever
Duralumin pipe

Static Compliance
14 × 10-6 cm/dyne

Dynamic Compliance
6 × 10-6 cm/dyne (100 Hz)

Dimensions
16.1 mm (0.63”) × 16.6 mm (0.65”) × 26.1 mm (1.0”) (H × W × D)

Accessories Included
Non-magnetic screwdriver; Brush; Washer* × 2; Cartridge installation screws* (M2.6) (8.0 mm (0.31”) × 2, 10.0 mm (0.39”) × 2, 13.0 mm (0.51”) × 2); Protector

Threaded Hole
M2.6 × 2

Stylus Curvature Radius
0.65 mil

Type
MC

Weight
10.1 g (0.36 oz)

Notes
* Washers × 2 and screws (8.0 mm (0.31”)) × 2 are used to secure the cartridge in the box at the time of purchase. Be sure to keep and not lose these after removing the cartridge from the box.  

 

Warranty
2 Years
Manufacturer
Audio Technica
Model Number
AT-33xMONO/II
Colour
Cyan
Weight (Each)
10g
Length (cm)
3
Width (cm)
2
Height (cm)
2
Voltage
n/a