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AKG D7
Photo: AKG (Harman), from its manual, p. 1.

AKG

AKG D7

Dynamic supercardioid handheld vocal mic (Varimotion diaphragm), with hum-bucking coil and a fixed 80 Hz high-pass filter

Type
Dynamic
Pattern
Supercardioid
Sensitivity
−52 dBV/Pa
Self-noise
18 dB(A)
Max SPL
147 dB SPL
Impedance
600 Ω
Rated range
70 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the manual, p. 21. Titled "Frequency Response". Distance, room and smoothing not stated. Solid curve (not labelled; the on-axis response).

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

Polar pattern

Polar pattern: from the manual, p. 21. Titled "Polar Diagram"; AKG split plot, 0° at the bottom; 125-1000 Hz on the left half, 2-16 kHz on the right; rings every 5 dB (labels -20, -10, 0). Measuring conditions not stated.

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All specs

From the manual
CapsuleDynamic, Varimotion (varying-thickness) laminate diaphragm, mechanical/pneumatic shock mount. Patents: "Varimotion varying-thickness diaphragm for dynamic transducers"; the cut sheet calls it "Laminate Varimotion diaphragm" (p. 1); shock mount on p. 13.p. 21
Sensitivity−52 dBV/Pa (2.6 mV/Pa). "2.6 mV/Pa (-52 dBV re 1 V/Pa)".
Self-noise18 dB(A), to IEC 60268-4. "Equivalent noise level: 18 dB(A) to IEC 60268-4", as printed for this dynamic mic; the cut sheet gives "18 dB-A (IEC 60268-4)" and "Signal/noise ratio (A-weighted) 76 dB".
Max SPL147 dB SPL, 1% THD; also 156 dB SPL, 3% THD. "Max. SPL for 1% / 3% THD: 147 / 156 dB SPL", as printed for this dynamic mic.
Output impedance600 ohm, maximum. "≤600 ohms".
Rated load impedance2000 ohm, minimum, recommended. "≥2000 ohms".
Rated frequency range70 Hz to 20 kHz
ConnectorXLR-3 male, gold-plated. "3-pin XLR"; "gold-plated XLR-type output connector" (cut sheet, p. 1).
Weight340 g, net
Dimensions51 × 185.2 mm. Diameter × length.
Supplied accessoriesSA 61 stand adapter; extra internal windscreen; carrying case. Package contents (p. 13); the D7 LTD adds a microfibre cloth.p. 13
High-pass filter80 Hz, permanently on (no switch)p. 21
Humbucking coilIntegrated (on the capsule)
FinishD7, D7 S: matte grey-blue; D7 LTD: chrome plated
GrilleSpring-steel wire-mesh cap; zinc-alloy die-cast bodyp. 14
VariantsD7 S: with a noiseless on/off switch; D7 LTD: chrome-plated case; both acoustically the same as the D7. D7 WL1: D7 capsule for AKG WMS 4000 and 4500 wireless systems
Shipping weight655 g (1.45 lbs.)p. 21
PatentsVarimotion varying-thickness diaphragm: AT 403.751, US 6.185.809, DE/DK/FI/FR/GB/IT/NL 814.637
From the other
Item numbersD7 3139Z00010; D7 S 3139Z00020; D7 LTD 3139Z00030p. 1
Replacement partsCapsule 2610Z00350; grid cap 3139M11010 (LTD 3139M11030); foam insert 3139Z10010
From the spec sheet
Signal-to-noise ratio76 dB, A-weightedp. 2

Documents

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

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