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AKG C 451 E
Photo: AKG, from its catalog, p. 1.

AKG Acoustics

AKG C 451 E

Small-diaphragm condenser (FET), cardioid: the C-451E 12 V preamplifier with the screw-on CK-1 capsule, from the modular C-450 system

Approximate Some readings for this mic are uncertain; see the graphs.

Type
Condenser
Pattern
Cardioid
Sensitivity
−39.2 dBV/Pa computed
Impedance
200 Ω

Frequency response

Angle
Distance

Frequency response: from the catalog, p. 4. CK-1 capsule graph in the catalogue: "~1m (~3-1/4') ON AXIS"; relative dB. The capsule is said to come with its own proof-of-performance curve, so this is a typical curve. Field and smoothing not stated. Approximate reading error up to about 1 dB.

Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.

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All specs

From the catalog
CapsuleCK-1 cardioid capsule, screw-on (C-450 modular system)p. 1
Poweringphantom, 12 V nominal (9 to 52 V through a suitable voltage-dropping network). "operates on 12-volt (nominal) phantom powering"; "Acceptable Phantom-Power Source: 9-52 volts dc (via suitable voltage-dropping network)". The listing gives 7.5-52 V and 3-12 mA, and AKG N-46E and B-46E supplies.p. 3
ConnectorXLR-3 male. "terminating in a 3-pin XLR-type connector".
Finishmatte nickel (nickel-plated brass). p. 1: "finished in matte nickel".
Supplied accessoriesSA-15/1 stand adapter; W-3 windscreen; foam-lined vinyl case. The C-451E basic cardioid combination.p. 1
Preamplifier frequency range5-30,000 Hz (C-451E)p. 3
Sensitivity (catalogue)CK-1: -39.5 dBm (EIA Gm: -132 dBm)p. 4
Size and weight (catalogue)C-451E: 4¾" long × ¾" dia., 2½ oz; CK-1: 1⅛" long × ¾" dia., 1 ozp. 3
Other capsules for the preamplifierCK-1S cardioid with presence rise, CK-2 omni, CK-5 shock-mounted cardioid with wire-mesh screen, CK-8 short shotgun, CK-9 shotgunp. 4
Accessories in the systemA-50/10 and A-50/20 capacitive pads (10 and 20 dB), A-51 swivel joint, VR-1 and VR-2 angled extension tubesp. 6
From the product page
Sensitivity−39.2 dBV/Pa (11 mV/Pa). Not stated by the manufacturer: Converted from "1.1 mv/µbar" (11 mV/Pa). The catalogue gives the CK-1 as "-39.5 dBm (EIA Gm: -132 dBm)", a power rating.p. 1
Output impedance200 ohm, "200/60 ohms"
Sensitivity (listing)-39 dB (1 mW/10 dynes/cm²), 1.1 mV/µbar
Equivalent noise level22 dB (DIN 45405) (RMS)
Distortion0.5% at 200 µbar (120 dB SPL)
Supply voltage and current (listing)7.5-52 V; 3-12 mA
Size and weight (listing)5-7/16" × ¾" dia.; 4½ oz
Environment (listing)Temperature -5 to +160 °F (as transcribed); humidity 90% at +80 °F

Documents

Copies kept by Mic Archive, because manufacturers move and drop their documents. Each is © AKG Acoustics, unchanged, with its original address.

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