MMA400-2 with 15 VDC Phantom Power Option

MMA Series Line and Mic Amplifiers give you four or eight individual channels to boost either line or mic level balanced inputs up to +24dBm, 600 ohm line levels with either active or transformer balanced outputs. Use these versatile units as microphone, line buffer, IHF interface, audio distribution and level matching amplifiers. Drive headphones or interface phone lines. Combine channels with rear connector jumpers to form stereo summing networks, DAs, simple mixers or even a Press Box. Adjustable gain, up to 82dB mic and 42dB line. Low noise and distortion, ruler flat response. Barrier block terminals, 1RU rack mount; accessory XLR input & output panels available.

• Four or eight, high or low gain audiochannels
• Rear panel jumpers to combine input channels to multiple outputs
• Drive multiple outputs at different gain settings
• Combine high and low gain microphone inputs into many outputs
• Normalize incoming telephone lines and drive outgoing feeds with a Multiple Line Amplifier array.
• MMA400-2-PH15 MMA400-2 with 15VDC Phantom Power Option

GAIN	MMA400/MMA800: 64, 74 or 84dB; MLA400/MLA800: 22, 32 or 42dB
	Each channels gain is dependent on output gain jumper plug position
MAXIMUM INPUT	MMA400/MMA800: RF bypassed, balanced 40dB gain instrumentation
	amplifier, Zin=20Kohm. Maximum input is -20dBu. Gain can be reduced to
	0dB to accept line level sources up to +22dBu by removing a jumper.
MAXIMUM OUTPUT	+24dBm into 600 ohm loads. 15Vrms into high impedance loads.
	MMA/MLA-1: Transformer Balanced, 60 ohm source Z. MLA/MMA-2:
	Active Balanced, 300 ohm source Z, protected and RF bypassed.
NOISE	MMA400/MMA800: E.I.N.= -120dBm maximum with 150 ohm source
	resistance. MLA400/MLA800: E.I.N.= -92dBm with 600 ohm source
	resistance. Both measured with 20kHz equivalent square wave bandwidth.
	All hum components are at least 10dB below white noise.
FREQUENCY	+/- .25dB, 20 to 20,000Hz, -3dB at 3Hz and 40kHz, typical
RESPONSE	Square wave rise time 6µSec
DISTORTION	.25% maximum THD, 30 TO 20,000Hz at +22dBm output
HUM REJECTION	60dB at 60Hz
CROSSTALK	-70dB maximum at 10kHz
TERMINALS	Rear barrier blocks for all input, output and summing jumpers. Fanning
	strips with solder terminals provided for easy prewiring and quick change servicing.
POWER	115/230 VAC +/- 10%, 47 -63Hz., 20VA. (Specify for 230VAC operation)
DIMENSIONS	19" (48cm) W x 1-3/4" (4.4cm) H x 7-1/2" (19cm) D
SHIPPING WEIGHTS	(2.3kg)
OPTION
	SE4 4 Shaft Extenders for fingertip adjustment (user installed)
	SE8 8 Shaft Extenders for fingertip adjustment (user installed)
WARRANTY	Limited, One Year Warranty