Cardioid Condenser Microphone
The MXL 3000 is a large-diaphragm condenser with a transformer-coupled output circuit. It is part of MXL’s 900 series, an OEM series of mics for Guitar Center and affiliated companies.
Its capsule is MXL’s standard 32mm K67-style, a large-diaphragm center-terminated capsule with a pronounced high-frequency peak.
The circuit is a 2-stage transistor design with a low-ratio output transformer. It is nearly identical to the MXL 2001 / V67G circuit, with a 2SK170 JFET and 2SA1015 transistor driving the the transformer. However, the MXL 3000 version of the circuit is upgraded in at least two significant ways from the 2001/V67G:
- the capsule is directly coupled to the JFET input, with no coupling capacitor. In contrast, the 2001/V67G use a cheap ceramic coupling capacitor, which is the first thing any modder would upgrade.
- the output capacitor is an oversized MKT metallized polyester film cap, rather than a small tantalum capacitor.
As with the 2001/V67G that we’ve seen, the 3000 uses a polarization voltage of +35VDC. This relatively low voltage level is a result of the mic’s lack of a DC converter/multiplier; the 48V phantom supply feeds the two transistor stages, and what is left (~35V) is what biases the capsule.
The MXL 3000 ships in a variety of packages. Some include a hard mount and flight case. Others forgo both these in favor of a shockmount and metal-mesh pop filter (as found in MXL’s “Vocalist Studio Recording” package, also billed simply as the “MXL 3000 Bundle”).
Permalink: MXL 3000
|Pickup Patterns||Pads & Filters|
(16 mV/Pa; 20 - 20,000 Hz)
| Diaphragm diameter: 25mm
Capsule diameter: 32mm
Diaphragm gauge: 6 microns
|200 Ohms (Low)||Self-noise: 19.0 dB(A)|
|430g (15.17oz)||215mm (8.46'')||50mm (1.97'')||
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