Mic Archive
MXL 770
Photo: MXL, from its manual, p. 1.

MXL

MXL 770

Condenser (FET, transformerless), cardioid, side-address, with -10 dB pad and 150 Hz bass roll-off

Type
Condenser
Pattern
Cardioid
Sensitivity
−36.5 dBV/Pa computed
Self-noise
20 dB(A)
Max SPL
137 dB SPL
Impedance
150 Ω
Rated range
20 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the manual, p. 1. Titled "Frequency Chart"; dB scale +20 to -30, relative; no legend. Distance, room and smoothing not stated.

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 manual
Capsule22 mm, gold-sputtered. "Capsule: 22mm gold-sputtered". The text on page 2 says "a twenty millimeter gold-sputtered diaphragm", and the 2007 sheet "large 20 mm. diaphragm".p. 1
Self-noise20 dB(A), A-weighted, IEC 268-4. "Equivalent Noise Level: 20 dB (A-weighted IEC 268-4)".
Max SPL137 dB SPL, 0.5% THD. "Max SPL for .5% THD: 137 dB". Pad setting not stated.
Signal-to-noise ratio74 dB, re 1 Pa, A-weighted. "S/N Ratio: 74 dB (Ref. 1 Pa A-weighted)".
Output impedance150 ohm
Rated frequency range20 Hz to 20 kHz; also [30, 20000], 2007 sheet ("Frequency Range"). "Frequency Response: 20 Hz – 20 kHz". The 2007 sheet gives "30Hz-20kHz".
Poweringphantom 48 V ±4 V. Page 2: "phantom power at 48 volts, +/- 4 volts".p. 2
Low cutoff, 150 Hz, 6 dB/octave; 150 Hz; 6 dB/octave; high-pass. "High Pass Filter: 6dB/octave @ 150Hz"; page 2 calls it the "bass roll-off switch".p. 1
Pad−10 dB. "Attenuation Switch: 0dB, -10dB"; page 2 calls it the "-10dB pad" on the rear of the microphone.
Weight453.59 g. "453.59g / 1lb". The 2007 sheet says "1 lb".
Dimensions59 × 158 mm. "59mm x 158mm / 2.32 in. x 6.22 in."; not said which is which (diameter × length, presumably). The 2007 sheet gives "60mm x 154mm".
Finishblack with black grille. "Metal Finish: Black with black grill".
Supplied accessoriesMX-57 shock mount; carrying case. "Contents" on page 2. The product page lists "MXL70 Shock Mount" and "MXL Carrying Case".p. 2
CareUse a pop filter or foam windscreen for vocals closer than 3" (8 cm); store with the silica gel packet
WarrantyOne year
From the product page
Sensitivity−36.5 dBV/Pa (15 mV/Pa). Not stated by the manufacturer: Converted from "15mV/Pa" (20 log10 0.015 = -36.5).p. 1
ElectronicsTransformerless FET preamp
From the manual (Recording Hacks copy)
Current draw3 mA, less than. "Current Consumption: <3.0mA". Not in the 2024 manual.p. 1

Documents

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

Product page on mxlmics.comRecording Hacks

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