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Mods for the LD-74

  • Microphone PartsMicrophone Parts
    The Tascam LD-74 can be upgraded to a world-class microphone by replacing the stock circuit boards with the MP-V57 PCB kit manufactured by As a DIY project, this approach lets you build a $500 microphone for less than half price. Select from any of 5 large-diaphragm capsules; pick a sonic color that complements your mic locker.

Tascam LD-74

Pricing & Availability

  • MSRP: n/a
  • Discontinued


LD-74 Documentation

CardioidTascam LD-74

Cardioid Condenser Microphone

The LD-74 is a small-diaphragm condenser microphone manufactured for Tascam by MXL. It is a rebadged MCA SP-1, in a silver body.

Tascam LD-74 circuitThe LD-64/SP1 is part of MXL’s series of transformerless mimcrophones built with a version of the Schoeps CMC-5 circuit. This line of microphones includes the V57, 2006, MCA SP1, MXL V63M, Tascam LD-74, MXL 550, and probably more.

Although most of these were sold as “large-diaphragm” microphones, the SP-1 and LD-74 used MXL’s small-diaphragm capsule, mounted on its edge within a large brass baffle ring.

All, at least originally, used the same pair of “V57” circuit boards (although in 2013 most of these models were changed to a single surface-mount board).

Permalink: Tascam LD-74


Pickup Patterns Pads & Filters
Cardioid (10 mV/Pa; 30 - 20,000 Hz)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 17.1mm
Capsule diameter: 19.9mm
Diaphragm gauge: 6 microns
200 Ohms (Low) Max SPL: 134 dB
Self-noise: 18.0 dB(A)
Weight Length Max Diameter Interface(s)
n/a n/a n/a
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 48 ± 4v

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