Peavey SMRTM 821a user manual Noise

Noise

Output	Signal/Noise (typical)	Test Conditions
	100 dB	All level controls down
	84 dB	Master level controls nominal
Left		Channel level controls down
Right
	80 dB	All controls nominal
		All channels assigned
		Mic gain minimum
	95 dB	All level controls down
	92 dB	Master level control nominal
Aux		Channel level controls down
	81 dB	All controls nominal
		All channels assigned
		Mic gain minimum

Gain

Mic input range without pad:	10 dB to 60 dB
Mic input to output without pad:	80 dB max
Mic input range with pad:	-10 dB to 40 dB
Mic input to output with pad:	60 dB max
Mic input range without pad (optional transformer):	20 dB to 60 dB
Mic input to output without pad (optional transformer):	80 dB max
Mic input range with pad (optional transformer):	0 dB to 40 dB
Mic input to output with pad (optional transformer):	60 dB max

Frequency Response

20 Hz–20 kHz +0 dB/-1 dB

Total Harmonic Distortion Plus Noise

<0.05% typical 22 Hz–22 kHz BW; Mic to Left/Right out 40 dB Mic gain‚ +4 dBu‚ 20 Hz–20 kHz

Equivalent Input Noise (EIN)

-128 dBu Mic input terminated with 150 ohms

Common Mode Rejection Ratio (Mic Input) >70 dB typical 20 Hz–20 kHz

Crosstalk Adjacent Channels (1 kHz) >70 dB typical

Crosstalk Output to Output (1 kHz) >60 dB typical

Phantom Power

+48 volts at mic + and - inputs

Remote Control Volume

30 dB attenuation (10k ohm potentiometer) typical

60 dB attenuation (100k ohm potentiometer) typical

Channel Mute

>60 dB attenuation

Signal/Clip Indicators Input Channel Status Green: -20 dBu

Red: 2 dB below clipping Output Level Meters -24: -20 dBu

-6: -2 dBu

0:+4 dBu +6: +10 dBu

Clip: 2 dB below clipping

Power Requirements

Domestic: 120 Vac‚ 60 Hz 15 watts nominal

Export: 230 Vac‚ 50/60 Hz 15 watts nominal

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