Audio Technica AT33xMLD
Overview
The AT33xMLD embodies Audio-Technica’s return to its roots, marking the first major overhaul of the AT33 series in over a decade. This moving coil cartridge is part of a Japanese tradition of meticulous craftsmanship, blending technological innovation with the characteristic sonic warmth that has defined the brand’s reputation since its inception in 1962.
A redesigned chassis to tame resonances
For the first time in the series’ history, Audio-Technica uses pressure-cast zinc for the cartridge base, a material chosen for its exceptional density and rigidity. This innovation fundamentally transforms the cartridge’s vibrational behavior. The composite body combines three distinct materials—zinc, aluminum, and a high-rigidity polymer—arranged to create optimal resonance dispersion, preventing any single frequency from dominating during playback.
The new suspension mechanism uses piano wire, slightly reducing dynamic compliance to deliver a more substantial sound, particularly in the upper-bass and mid-bass frequencies. Integrated M2.6 threaded inserts greatly simplify installation on headshells, reflecting attention to practical details without compromising performance.
Dual moving coils and duralumin cantilever: the technical signature
The conical duralumin cantilever, tapering toward the microlinear diamond tip, is a deliberate choice. This design improves high-frequency control while preserving the distinctive tonal qualities of duralumin. Two independent PCOCC (Pure Copper by Ohno Continuous Casting) copper coils are positioned at the fulcrum of the cantilever, ensuring pure signal transmission for each channel. This technology produces monocrystalline copper with no grain boundaries, eliminating micro-discontinuities that could degrade the signal.
The magnetic assembly pairs a neodymium magnet with a permendur yoke, creating a powerful, focused magnetic field that maximizes the efficiency of electrical signal generation. The connector pins feature heavy gold plating, reducing contact resistance.
A microlinear diamond for superior detail
The solid microlinear diamond (2.2 × 0.12 mil) traces the groove with surgical precision, extracting subtle details often masked by less sophisticated profiles. The AT33xMLD delivers a warm yet detailed sound, making it particularly well-suited for rock and jazz records. This sonic signature results from a careful balance between the cartridge’s mechanical and electrical characteristics.
The dynamic compliance of 6 × 10⁻⁶ cm/dyne at 100 Hz, relatively low for a modern cartridge, contributes to the rich, full-bodied character especially appreciated on recordings from the 1950s to the 1970s.
Broader compatibility and simplified installation
The AT33x series uses a redesigned suspension system with slightly lower dynamic compliance than previous models, making it easier to match with a wider variety of tonearms. A medium effective-mass arm (9–15 grams) will be an excellent fit.
With an output voltage of 0.4 mV and internal impedance of 12 ohms, the AT33xMLD pairs well with most quality MC phono preamplifiers. The recommended load of at least 100 ohms can be adjusted up to 500 ohms according to preference. The tracking force of 2.0 grams (adjustable between 1.8 and 2.2 g) provides room to optimize groove tracking.
Documentation
French
Technical Specifications
Electrical Characteristics
- Output voltage: 0.4 mV (1 kHz, 5 cm/s)
- Coil impedance / DC resistance: 12 Ω (1 kHz)
- Recommended load impedance: ≥ 100 Ω (with MC preamp)
- Coil inductance: 26 µH (1 kHz)
Acoustic Performance
- Frequency response: 20 Hz – 42000 Hz
- Channel separation: 27 dB (1 kHz)
- Channel balance: 1.0 dB (1 kHz)
Mechanical Characteristics
- Recommended tracking force: 1.8 – 2.2 g (2.0 g standard)
- Static / dynamic compliance: 21 × 10⁻⁶ cm/dyne / 6 × 10⁻⁶ cm/dyne (100 Hz)
- Vertical tracking angle (VTA): 19°
Construction
- Type: moving coil (MC) cartridge
- Stylus: nude microlinear (2.2 × 0.12 mil)
- Cantilever: tapered duralumin tube
Dimensions and Weight
- Dimensions (H × W × D): 16.1 × 16.6 × 26.1 mm
- Thread: M2.6 × 2
- Weight: 10.1 g
Supplied Accessories
- Non-magnetic screwdriver
- Cleaning brush
- 2 washers
- Screw set (M2.6): 2 × 8 mm, 2 × 10 mm, 2 × 13 mm
- Protective cap
Frequently Asked Questions
What is the main difference between the AT33xMLD and other models in the new AT33x series?
The AT33xMLD stands out with its conical duralumin tube cantilever paired with a microlinear diamond. This combination offers a distinctive balance of sonic warmth and detail precision. The AT33xMLB models use a boron cantilever (stiffer and lighter), while the AT33xEN employs an elliptical diamond. Each configuration targets a specific sound profile, with the AT33xMLD emphasizing harmonic richness and musicality.
Does this cartridge require a special phono preamplifier?
The AT33xMLD requires a preamplifier compatible with low-output MC cartridges. With its 0.4 mV output and 12-ohm impedance, it works with most quality MC preamps offering at least 60 dB of gain. An adjustable input load between 100 and 500 ohms will allow you to optimize the sound according to your preferences.
Is this cartridge suitable for all music genres?
The AT33xMLD particularly excels with rock and jazz, especially analog recordings from the 1950s to the 1970s. Its warm signature and ability to reproduce the texture of acoustic instruments also make it highly convincing for classical music. Electronic music fans will appreciate its dynamics and solid low-end foundation.
How does it compare to previous models like the AT33EV or AT33PTG?
The AT33xMLD represents a significant evolution thanks to its die-cast zinc base and redesigned suspension system. Compared to the AT33EV (elliptical diamond), it offers better definition and more precise tracking. Against the AT33PTG/II, it benefits from structural improvements that reduce coloration and enhance neutrality while preserving the characteristic musicality of the lineage.
- Eco-contribution included in the sale price.
- GTIN / EAN: 4961310164034
