Audio-Technica AT33xMONO/I Phono Cartridge

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 neodymium magnet and permendur yoke (shaped for optimal monaural sound reproduction) create a strong magnetic field that maximises power generation efficiency, resulting in responsive, high-resolution analogue playback. 

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

Please Note: AT33xMONO/I’s stylus assembly is not field-replaceable, but Audio-Technica offers a fee-based Moving Coil Exchange Program to properly service your moving coil cartridge. 

Material Difference

The AT33xMONO/I’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.

Full, Warm Sound

The redesigned AT33x Series cartridges deliver that classic analogue sound, rich in detail across the audio spectrum with lifelike expressiveness in the mid to low frequencies.

Features

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  

Please Note: AT33xMONO/I’s stylus assembly is not field-replaceable, but Audio-Technica offers a fee-based Moving Coil Exchange Program to properly service your moving coil cartridge.