Audio-Technica VM 670 SP Shellac

This model AudioTechnica VM 670 SP is a mono shellac cartridge, suitable for 78 rpm recordings from a variety of times shellac disk. The weight must not be less than 4.5 g. The size of the needle is 3 mil.

• Aluminum cantilever
• PCOCC copper para-toroidal coils improve efficiency
• The mono body with its left and right channels reduces surface noise
• Low resonance hard polymer housing

AudioTechnica's patented dual magnet design principle is based on vinyl record reproduction.

Instead of a single large magnet, two V-shaped magnets are precisely aligned to accurately scan the right and left channels of the sides of the stereo groove. In this way, a VM system provides exceptional channel separation, extended frequency response, and superior sampling capacity.

System with para-toroidal generator

Para Toroid coils improve the efficiency of the generator and provide outstanding linearity, since only a small part of the magnetic flux can escape due to the continuous symmetrical design of the magnetic circuit (parasitic flux), in addition, the permeability of the magnetic cores is optimized by the stratified core structure.

Medium shielding plate for reduced crosstalk

The central permalloy shielding plate allows efficient separation of the left and right channels and eliminates electrical crosstalk up to 40 dB. This corresponds approximately to the actual crosstalk values of a recording groove.

Technical characteristics

• Principle: MM Mono 78t
• Compatible: 78t / min Shellac discs
• Frequency response: 20 hz-20 kHz
• Channel balancing: 1.5 dB
• Output voltage: 3. mV
• Vertical reading angle: 23 °
• Supporting force: 1.8 / 2.2g
• Recommended support force: 2g
• Diamond: conical
• Tip size: conical 3 mil
• Assembly: full collage
• Cantilever: aluminum
• Dynamic Compliance: 7 x 10-6cm / dyne
• Coils: Para-toroidal, PCOCC conductors
• Mobile magnet: VM Double magnet
• Fixing: 1/2 inch