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Mods for the V63M

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CardioidMXL V63M

Cardioid Condenser Microphone

The V63M is a transformerless large-diaphragm condenser with a fixed cardioid pickup pattern. Part of MXL’s “900 Series,” it is OEM’d by MXL for Guitar Center and its various retail outlets, including Musician’s Friend, Music 123, and Woodwind & Brasswind.

The capsule has an outside diameter of 32mm, with a 6-micron diaphragm. The Mylar on the rear of the capsule is clear, as is often the case on Cardioid-only condensers.

V63MThe impedance circuitry is transformerless. This specific circuit design is commonly referred to as the “Schoeps circuit,” named for the German manufacturer that pioneered it. The same circuit — in fact, identical circuit boards — can be found in numerous other MXL mics, including the MCA SP-1, MXL V57, MXL V250, and MXL 2006.

The V63M and SP-1 differ in two ways: the SP-1 uses a small-diaphragm capsule, and uses a lighter weight (thinner) body sleeve. The V63M and 2006 differ only in the shape of the body and headbasket; internally, they share the same circuit and capsule.

The V63M’s self-noise is rated at 20dBA, making this the noisiest of MXL’s large-diapragm FET microphones (along with the multipattern MXL 4000, another 900-series mic).

The performance of this microphone can be substantially improved through a variety of aftermarket modifications. See the sidebar for commercial mod kids and upgrade options.

The V63M ships with a ring mount (MXL p/n MT-001). Some retailers bundle it with an elastic shockmount; the mic is compatible with the MXL-57, USM-001, and USM-002 shockmounts.

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Frequency Response - CardioidClick Graph to Compare!
V63M Cardioid Frequency Response Chart
Pickup Patterns Pads & Filters
Cardioid (15 mV/Pa; 30 - 20,000 Hz)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 25mm
Capsule diameter: 32mm
Diaphragm gauge: 6 microns
200 Ohms (Low) Max SPL: 130 dB
Self-noise: 20.0 dB(A)
Weight Length Max Diameter Interface(s)
470g (16.58oz) 190mm (7.48'') 55mm (2.17'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 48 ± 4v

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