Shure M367 important safety instructions Specifications

SPECIFICATIONS

Frequency Response

20 to 20,000 Hz ± 2.0 dB (channel controls centered)

Total Harmonic Distortion

0.25% THD at +4 dBm output, 55 to 20,000 Hz

Voltage Gain

					Output
Input	Line			Mic	Phones	Mix Bus		Mix
						(M367)		Bus
								(M267)
Low-Z Mic	87 dB			40 dB	103 dB	66 dB		27 dB
(150 Ω)
Line	37 dB			-11 dB	53 dB	15 dB		-25 dB
Monitor	--			--	12 dB	--		--
Mix Bus	10 dB			-38 dB	26 dB	--		--
(M367)
MixBus	50 dB			2 dB	66 dB	--		--
(M267)
Inputs
				IMPEDANCE				Input
Input		Designed for			Actual		Clipping
			Use With		(Internal)			Level
Mic		19 to 600 Ω			1 kΩ		-10 dBV
Line			≤10 kΩ		50 kΩ		+36 dBV
Monitor			≤1 kΩ		13 kΩ			0 dBV
Mix Bus		930 Ω bal.;			930 Ω bal.;		+23 dBV
(M367)		1860 Ω unbal.			1860 Ω unbal.
Mix Bus			3.5 kΩ		3.5 kΩ		-17 dBV
(M267)
Outputs
				IMPEDANCE			Output
Output		Designed for			Actual		Clipping
			Use With		(Internal)		Level
Mic		Low-Z inputs			1 Ω		-31 dBV
Line			600 Ω		150 Ω		+18 dBm
Phones			8 to 200 Ω		300 Ω		+11 dBV
Mix Bus			930 Ω bal.;		930 Ω bal.;		+11 dBV
(M367)		1860 Ω unbal.			1860 Ω unbal.
Mix Bus			3.5 kΩ		3.5 kΩ		-28 dBV
(M267)

Equivalent Input Noise

≤–127 dBV with 150 Ω source, 400 to 20,000 Hz

Output Noise

Master level full CCW: –100 dBV, 400 to 20,000 Hz

Master level full CW: –80 dBV, 400 to 20,000 Hz

Hum and Noise

Equivalent Input: ≤125 dBV, 20 to 20,000 Hz

Output: –95 dBV (Master CCW), –75 dBV; (Master CW), 20 to 20,000 Hz

Common Mode Rejection Ratio 65 dB at 100 Hz, –20 dBV input

Polarity

Mic/Line In to Mic/Line Out	Non-Inverting
Mic/Line In to Phones	Non-Inverting
Mic/Line In to Mix Bus (tip)	Inverting
Monitor to Phones	Non-Inverting
Mix Bus to Mic/Line Out	Inverting

Overload and Shorting

Shorted outputs, even for prolonged periods, cause no damage. Microphone inputs of up to 3 Vrms cause no damage. Line and monitor can withstand signals of up to 30 Vrms.

Input Peak Indicators

6 dB below clipping level

Output Peak Indicator

Lights red at 6 dB below clipping level

Output Clipping Level

≤+18 dBm at line output into 600 Ω

Low-Cut Filters

7 dB down at 150 Hz; 6 dB/octave slope (3 dB down at 260 Hz)

Tone Oscillator 1 kHz ± 20%

Limiter

Threshold: Switchable: 0, +4, +8, +16 dBm

Attack Time: 1 ms ± 0.5 ms

Release Time Constant: 100 ms ± 30 ms

Indicator: Green when limiting by 1 dB or more

Phantom Power

12 V Phantom: 12 V through 340 Ω

48 V Phantom : 48 V through 3.4 kΩ

AC Power

M367: 100–120 Vac, 50/60 Hz, 100 mA

M367E: 220–240 Vac, 50/60 Hz, 50 mA; no-signal current drain

25mA

DC Power

18 Vdc nominal at 40 mA typical no-signal, 45 mA typical at +4 dBm output; 13.5 Vdc minimum

Batteries

Two 9 V alkaline batteries

Battery Life

Up to 8 hours* at +4 dBm output in continuous use.

*(see Battery Operation)

Temperature Range

Operating: -18° to 57° C (0° to 135° F)

Storage: -29° to 74°C (-20° to 165° F)

Overall Dimensions (H x W x D)

71.9mm x 308 mm x 233 mm (2 13/16 in. x 12 5/32 in. x 9 5/32 in.) including feet.

Weight (without batteries)

3 kg (6.6 lb)

Measurement conditions (unless otherwise specified): operating voltage 120 Vac, 60 Hz (18 ±1 Vdc for dc test); operating tempera- ture 22°C (72°F); input signal 1 kHz; internal DIP switches 1–7 open; Power switch on; Mic/Line switches to Line; low-cut switches to flat; Limiter out; Phantom power off; Mix Bus to M367; channel 1 gain full CW; channel 2 through 6 full CCW; Master full CW; Phones level full CCW; Line output terminations 600 Ω (pins 2 and 3); Mic output ter- minations 150 Ω (pins 2 and 3); Phones (1/4"–ring) 300 Ω to ground; Phones (1/4"–tip) 300 Ω to ground; Phones (3.5 mm) unloaded; Mix Bus 930 Ω (M367 position) or 3.5 kΩ (M267 position), not connected unless specified; 1 kHz input signal.

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