AKG Acoustics C-451

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pencil-mic detachable-capsule condenser

Specifications and Reviews

C451/C452 History

Mods for the C-451

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discontinued Detachable-Capsule Condenser Microphone

Description

AKG’s C-451 “Condenser Modular Series” (CMS) microphones remains a popular studio microphone despite having been discontinued since 1994. The C-451 preamp body accepted a variety of detachable capsules, extension tubes, and pads, making it a versatile performer.

The “C-451 E” had an XLR output. The “C-451 C” had a DIN connector. Either way, the mic was AKG’s first FET condenser.

A subsequent design, the “C-451 EB,” had a switchable high-pass filter, providing a 14dB/octave cut at either 75Hz or 150Hz.

Because such a wide variety of capsules and attachments were available, the specs in the table below are provided for the preamp body only.

The AKG Acoustics C-451 is also known as: C451C, C451E, C451.

The mic was released in 1969.

Specifications

Compatible Capsules

	AKG Acoustics CK-1 Cardioid capsule Sensitivity: 9.5 mV/Pa Freq. Resp.: 20 - 20,000 Hz MSRP: n/a \| discontinued
	AKG Acoustics CK-2 Omnidirectional capsule Sensitivity: 6 mV/Pa Freq. Resp.: 20 - 20,000 Hz MSRP: n/a \| discontinued
	AKG Acoustics CK-22 Omnidirectional capsule Sensitivity: 8 mV/Pa Freq. Resp.: 20 - 20,000 Hz MSRP: n/a \| discontinued
	AKG Acoustics CK-26 Omnidirectional capsule Sensitivity: 1.3 mV/Pa Freq. Resp.: 30 - 30,000 Hz MSRP: n/a \| discontinued
	AKG Acoustics CK-28 Cardioid capsule Sensitivity: 1.3 mV/Pa Freq. Resp.: 20 - 20,000 Hz MSRP: n/a \| discontinued
	AKG Acoustics CK-3 Hypercardioid capsule Sensitivity: 11 mV/Pa Freq. Resp.: 20 - 20,000 Hz MSRP: n/a \| discontinued
	AKG Acoustics CK-5 Cardioid capsule Sensitivity: 9.5 mV/Pa Freq. Resp.: 20 - 20,000 Hz MSRP: n/a \| discontinued
	AKG Acoustics CK-6 Bidirectional capsule Sensitivity: n/a Freq. Resp.: n/a MSRP: n/a \| discontinued
	AKG Acoustics CK-8 Shotgun capsule Sensitivity: 15 mV/Pa Freq. Resp.: 30 - 18,000 Hz MSRP: n/a \| discontinued
	AKG Acoustics CK-9 Shotgun capsule Sensitivity: 11 mV/Pa Freq. Resp.: 30 - 18,000 Hz MSRP: n/a \| discontinued
	Blue Microphones AKG451 large diaphragm Cardioid capsule Sensitivity: n/a Freq. Resp.: 20 - 20,000 Hz MSRP: $750 \| discontinued