Mic Archive
AKG C414 B-ULS
Photo: AKG, from its spec sheet, p. 1.

AKG Acoustics

AKG C414 B-ULS

Large dual-diaphragm condenser, four patterns (omni, cardioid, hypercardioid, figure-8), with two bass cuts and two pads

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

Type
Condenser
Pattern
Omni / cardioid / hypercardioid / figure-8
Sensitivity
−38 dBV/Pa
Self-noise
14 dB(A)
Max SPL
140 dB SPL
Impedance
180 Ω
Rated range
20 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the spec sheet, p. 2. "Omnidirectional On-axis Frequency Response (measured at 1 meter)". Relative dB as printed; room and smoothing not stated.

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

Polar pattern

Polar pattern: from the spec sheet, p. 2. "Polar Response", omni; 0° at the bottom, low frequencies on the left half and high on the right, rings every 5 dB (scale labelled 0, -10, -20). Measuring conditions not stated. Approximate some frequencies are identified by reasoning, not by the legend: 8k Hz, 16k Hz.

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All specs

From the spec sheet
Capsuledual back-to-back 1-inch (25 mm) gold-sputtered diaphragms. "designed around dual back-to-back large 1 in. (25 mm) gold sputtered diaphragms for multiple pickup patterns".p. 1
Sensitivity−38 dBV/Pa (12.5 mV/Pa), 1 kHz; all patterns. "Sensitivity at 1,000 Hz: 12.5 mV/Pa =^ -38 dBV"; "On-axis sensitivity for all patterns is 12.5 mV/Pa".
Self-noise14 dB(A), equivalent noise level, A-weighted. "Equivalent Noise Level: 14 dB-A".
Max SPL140 dB SPL, 1 kHz, 0.5% THD, unpadded; also 134 dB SPL, wide-band, 0.5% THD, unpadded. "Sound Pressure Level for 0.5% THD: 134 dB, wide-band (unpadded); 140 dB, 1 kHz (unpadded)". Max SPL with the pads not stated.
Signal-to-noise ratio80 dB, A-weighted. "S/N Ratio (A-weighted): 80 dB".
Output impedance180 ohm. "Electr. Impedance: 180 ohms".
Rated load impedance1000 ohm, more than. "Load Impedance: > 1,000 ohms".
Rated frequency range20 Hz to 20 kHz. "Frequency Range: 20–20,000 Hz"; the description says the far-field on-axis response "for all four switchable patterns is remarkably flat, varying no more than +2 dB over the range from 20 to 20 kHz" (sic, probably ±2 dB).
Poweringphantom 12-48 V. "Power Requirement: 12–48 volts nominal Phantom powering". Current not stated.
Low cutoff, 75 Hz, 150 Hz; 12 dB/octave; high-pass. "bass cut of 12 dB/octave below 150 or 75 Hz". No graph of the bass cut.
Pad−10 dB; also −20 dB. "pre-preamp attenuation of either 10 or 20 dB".
ConnectorXLR-3. "3-pin XLR type".
Weight320 g. "Net/Shipping Weight: 11 oz. (320 g)/2.1 lbs. (950 g)".
Dimensions141 × 45 × 35 mm. "5.6 x 1.8 x 1.4 in. (141 x 45 x 35 mm)" (height, width, depth as printed).
Supplied accessoriesH100 elastic suspension; W414 windscreen. "Included Accessories". Optional: PF100 pop filter, B18 battery supply unit, N62E power supply.
FinishNon-reflective black
Shipping weight950 g (2.1 lbs)
Optional accessoriesPF100 pop filter (for recording), B18 battery supply unit, N62E power supply
Flatness (AKG)Far-field on-axis response of all four patterns within 2 dB from 20 Hz to 20 kHz

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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Recommended for

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