1X3 Distribution Amplifier, +22dBm Servo Balanced Outputs, Phoenix I/O (Incl. External PwrSply)

The DA103 accepts a line level input, balanced or unbalanced audio at -20, -10 or +4dBu nominal and provides a line level output at +4dBm nominal level to balanced or unbalanced output lines. The DA103 input/output connectors are two piece solderless “Phoenix” types, individual for each input and output line.
The DA103 accepts a maximum line input level of +22dBu and presents it to a high impedance (20Kohms) balanced instrumentation amplifier input and drives three servo balanced 600-ohm (minimum load) outputs up to +22dBm maximum. An internal input gain setting jumper plug optimizes the input stage gain, noise and headroom for nominal inputs at -20, -10 or +4dBu. The servo-balanced outputs automatically detect single-ended (one side grounded) loads, remove the drive signal from the grounded output and double the signal applied to the ungrounded output thus maintaining equal gain for both types of loading.
The DA103 requires 22 to 30VDC power and is designed to use an external 24VDC power supply (included with the unit). A pair of loop-thru DC connectors on the rear of each module permits several units to be daisy-chained using our 20602-1 DC power cables to a single power supply. The WA100-1 (included) and WA100-2 (230VAC), optional, are 400mA supplies. The DA103 draws about 100mA at full output. Any combination of units, which totals less than the supply rating, can be powered by a single supply

• Independent servo balanced outputs
• Master gain control
• Individual output level controls
• 1/3 RU wide enclosure, mounts 3 across in 1RU space
• Multiple mounting and power options

GAIN	DA103 40, 30,16dB maximum.
	DMA103 80, 60, 40, 30dB maximum
NOMINAL LEVELS	DA103 +4dBu in, +4dBm out at –4dB preamp gain
	DMA103 –50dBu in, +4dBm out at 40dB preamp gain
PEAK LEVELS	DA103 +22dBu in, +22dBm out to 600 ohm balanced
	DMA103 -20dBu in, +22dBm out to 600 ohm balanced
NOISE	20kHz B.W. DA103 EIN -85dBu at unity gain
	DMA103 EIN -124dBm at 54dB gain
HARMONIC DIST.	.02% Max at Peak Levels, .01% max. at Nominal
	Levels, 20Hz to 20 kHz
FREQUENCY RESP.	-.25dB, 20 to 20,000Hz
CROSSTALK	70dB minimum at 10kHz
INPUT IMPEDANCE	Balanced, 20kohm bridging
OUTPUT IMPEDANCE	Balanced, 40 ohms maximum Zs
PHANTOM POWER	DMA103 only, 20.2VDC regulated, PH48-1 48VDC phantom power accessory available.
DIMENSIONS in. (cm)	1.75”(4.45)H by 5.6”(14.2)W by 5.75”(14.6)D;
Weight	1.25 Lb, (0.570Kg) Net
CONNECTORS:	DA103: Two-piece, screw clamp, Phoenix type.
	DMA103: XLR, locking.
POWER:	24V @ .1A nominal, 22Vmin. to 30Vmax, loop thru cylindrical connectors, 2.0mmID, sleeve is positive.