recordinghacks

Superlux CMH8D

Multi-Pattern Tube Condenser Microphone

The Superlux CMH8D is a dual-pattern large-diaphragm tube condenser.

As part of the CMH8 series, it uses a one-inch, 3 micron true condenser capsule and identical exterior metalwork. The circuitry uses a hard-wired (not socketed) Nuvistor-type tube, with a transformer-coupled output.

A two-position polar pattern switch provides Cardioid or Omnidirectional patterns. Two other switches independently enable a high-pass filter (200Hz) or -10dB attenuation pad.

Sound On Sound - 2001
I tested the CMH8D valve mic alongside my Rode NTK […] The CMH8D sounds as warm and exciting as you’d hope a valve model would, with a slightly throaty and very much ‘in-your-face’ character. My Rode is smoother and less ‘pumped’ sounding, with a slightly more sophisticated quality, to these ears, but I really did like the Superlux for its more aggressive edge.

The CMH8D includes its dedicated power supply (Superlux p/n PS1), HM8 adapter, YA2 threaded adapter, S65 windscreen, HM7C shock mount, and the necessary cables.

The Superlux CMH8D is also known as: CM-H8D.

Specifications

Pickup Patterns	Pads & Filters
Omnidirectional (25 mV/Pa; 30 - 20,000 Hz) CHART Cardioid (40 mV/Pa; 30 - 20,000 Hz)	Pad: -10 dB (Via Switch) Filter: HPF @ 200 Hz (Via Switch)

Capsule Dimensions	Impedance	SPL/Noise
Diaphragm diameter: 25.4mm Diaphragm gauge: 3 microns	200 Ohms (Low)	Max SPL: 146 dB Self-noise: 18.0 dB(A)

Weight	Length	Max Diameter	Interface(s)
560g (19.75oz)	200mm (7.87'')	54mm (2.13'')	3-pin XLR male (1)

Power Specifications
Includes tube power supply

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