CAD Audio GXL3000

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side-address large-diaphragm dual-diaphragm externally-biased multipattern k67 2sk170 center-terminated condenser

Specifications and Reviews

Mods for the GXL3000

OktavaModMichael Joly’s GXL3000 mod contains a suite of upgrades: new FET, open headbasket, internal wiring, capacitors, and a Peluso PK-47 capsule. A critical transistor is also re-biased.

More CAD microphones

Street: $110 / MSRP: $159 Multi-Pattern Condenser Microphone

Description

The GXL3000 is a multipattern FET condenser, offering switchable pickup patterns: cardioid, omni, figure-of-8.

The capsule is reportedly a Chinese K67 copy — a dual-diaphragm, center-terminated 34mm design (~26mm diaphragms) found in numerous imported microphones. Nearly every Chinese microphone factory has a version of this capsule; most are considered to be decent, and some are excellent.

The amplifier circuit offers a high-pass filter (cutting the LF response by 6dB/octave below 100Hz when engaged) and a -10dB pad.

The FET is another Chinese standard, the 2SK170.

The output circuit is transformer-coupled.

The mic includes an elastic shockmount and a storage pouch.

Sound On Sound
The multi-pattern GXL3000 sounds pretty neutral, which is perhaps what you’d expect after seeing the nominally flat frequency plot with its subtle presence peaks. The omni mode sounds more open and natural than the cardioid and figure-of-eight modes, as is to be expected, but overall the sound is smooth and fairly classy with no obviously hyped characteristics, making this a good choice of mic if you need to use it as an all-rounder with different singers and different instruments.

The CAD Audio GXL3000 is also known as: GXL-3000.

The mic was released in 2005.

Specifications

Pickup Patterns	Pads & Filters
Omnidirectional (13 mV/Pa; 35 - 20,000 Hz) Cardioid (13 mV/Pa; 35 - 20,000 Hz) Bidirectional (13 mV/Pa; 35 - 20,000 Hz)	Pad: -10dB (Via Switch) Filter: HPF: -6dB/octave @ 100Hz (Via Switch)

Capsule Dimensions	Impedance	SPL/Noise
Diaphragm diameter: 26mm Capsule diameter: 34mm	200 Ohms (Low)	Max SPL: 135 dB Self-noise: 20.0 dB(A)

Weight	Length	Max Diameter	Interface(s)
602g (21.23oz)	194mm (7.64'')	45mm (1.77'')	3-pin XLR male (1)

Power Specifications
Requires phantom power Phantom voltage: 48v

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