AT-MONO3/SP
The AT-MONO3/SP is a high-output (1.2 mV) moving coil cartridge designed specifically for use with 78 RPM mono shellac records.* Due to the horizontal configuration of its PCOCC (Pure Copper by Ohno Continuous Casting) voice coils, the AT-MONO3/SP cartridge only generates electrical signal with horizontal movement, yet it also has appropriate compliance in the vertical direction to keep groove wear to a minimum. The voice coils are wired in series, resulting in one mono signal that is transmitted to the cartridge’s white-blue terminals and red-green terminals in order to feed both inputs of a stereo phono preamp.
Features
- Dual moving coil cartridge designed specifically for use with 78 RPM shellac records*
- Aluminum cantilever with 2.5 mil conical stylus
- Strong, rigid body construction of die-cast aluminum alloy and synthetic resin
- PCOCC (Pure Copper by Ohno Continuous Casting) coil enables pure signal transfer
- Compatible with stereo playback systems
* This cartridge with 2.5 mil conical stylus is not compatible with microgroove 33-1/3 and 45 RPM vinyl records. It is designed to play 78 RPM SP (standard play) shellac records.
Please Note: AT-MONO3/SP’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.
Specifications
| Cartridge & Stylus | |
|---|---|
| Frequency Response | 20-15,000 Hz |
| Vertical Tracking Angle | 23° |
| Vertical Tracking Force | 3.0-7.0 g (5.0 g standard) |
| Stylus Construction | Nude Square Shank |
| Recommended Load Impedance | 400-47,000 ohms* |
| Coil Impedance | 40 ohms (1 kHz) |
| DC Resistance | 40 ohms |
| Coil Inductance | 190 µH (1 kHz) |
| Output Voltage | 1.2 mV (at 1 kHz, 12 cm/sec) |
| Stylus Shape | 2.5 mil conical |
| Cantilever | Aluminum pipe |
| Static Compliance | 10 x 10-6 cm/dyne |
| Dynamic Compliance | 3.5 x 10-6 cm/dyne (100 Hz) |
| Mounting | Half-inch |
| Dimensions | 16.0 mm (0.63″) H × 16.6 mm (0.65″) W × 26.5 mm (1.04″) D |
| Accessories Included | Non-magnetic screwdriver; 2 washers; 2 nuts; cartridge installation screws (13 mm × 2, 20 mm × 2); plastic protector; brush; PCOCC lead wire set |
| Body Material | Aluminium/Synthetic Resin |
| Mounting Feature | Half-inch mount |
| Stylus Size | Bonded round shank |
| Type | Horizontal Mono Moving Coil |
| Weight | 6.8 g (0.24 oz) |
| Notes | Note: Stylus assembly is not field-replaceable. * When connected to the MC input of a transformer-less phono pre-amp, choose a lower gain position due to the high output voltage (1.2 mV). |
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