AKG Acoustics C 426B specifications Description, Specifications

C 426B

Description

The AKG Model C 426 B is the direct descendent of AKG's original C 24 and the more recent C 422 stereo microphone models. New technology has improved the dynamic range, self noise, sensitivity, linearity, frequency response between channels and crosstalk. The C 426 B contains two 25 mm gold sputtered dual capsule sets arranged in a coincident pair. The entire microphone head assembly can be rotated 45° relative to the shaft, allowing a quick changeover from M-S to X-Y modes of stereo recording. Additionally, the upper capsule assembly can be rotated 270° relative to the lower one, providing utmost flexibility in stereo pickup angle. The polar patterns for both microphone sections are separately controlled at the S 426 remote powering unit. The change in polar pattern is made noiselessly and may be made during recording. The body of the microphone contains a switchable -10 dB pre-attenuation pad and a bass cut of 12 dB per octave below 75 Hz. Two narrow angle LEDs are aligned with the primary axis of both capsule sections and enable the operating engineer to verify the precise orientation of each capsule. The microphone is attached to the S 426 control unit via a multi-pin, 66 ft.

(20 meter) cable. The signal outputs on the S 426 are XLR-M, and the unit operates on phantom power over the nominal range of 9 to 52 volts.

Specifications

Transducer Principle:	Condenser, externally polarized
Frequency Range:	20–20,000 Hz
Polar Pattern:	Cardioid, omnidirectional,
	figure-eight and six intermediate positions
Sensitivity at 1,000 Hz:	^
	11 mV/Pa = -39 dBV

Stereo Condenser Microphone

Features

Equivalent Noise Level: 14 dB-A

Sound Pressure Level for 0.5% THD: 132 dB (142 dB at -10 dB)

S/N Ratio (A-weighted):	80 dB
Electr. Impedance:	< 200 ohms
Load Impedance:	> 1,000 ohms
Power Requirement:	9-52 volts nominal
	Phantom powering
Connector on S 426:	Two 3-pin XLR type
Bass roll-off:	12 dB/octave below 75 Hz
Pad:	-10 dB
Finish:	Non-reflective black

•One of the world's most celebrated stereo condenser microphones

•Large 25 millimeter gold sputtered diaphragm format optimized for studio applications

•Two sets of dual diaphragms for multiple polar patterns arrayed at various angles

Size:	Dia 1.65/1.3 in. (42/33 mm)
	Length 9.25 in. (235 mm)
Net/Shipping Weight:	1.04 lbs. (0.47 kg)/11.2 lbs. (5.1 kg)
Included Accessories:	H 15/33 Suspension mount/stand adapter,
	W 426 Foam windscreen,
	MK 42/20 66 ft. (20 meter) cable,
	S 426 Remote control unit,
	Carrying case
Optional Accessories:	B 18 Battery power supply
	(for one channel only)

•High acoustic level capability (132 dB-SPL for 0.5% THD)

•Low self noise (14 dB-A)