The US Audio DA-2M is professional quality two channel analog audio distribution amplifier. Each channel has four electronically balanced XLR line level outputs with individual volume controls and clip indicators. The input for each channel can be either mic or line level on Neutrik combo connectors. Input features include mic/line level input switches, variable input gain controls, low cut switches for reducing low frequency rumble or wind noise, four segment headroom indicators and 48 V phantom power that is turned off when the input is used in line mode. The front panel COMBINE switch converts the DA-2M from two 1X4 distribution amps to a 2x8 distribution amp with the two inputs combining to feed all eight outputs. This provides the capability of having both a line and a mic input simultaneously. A headphone circuit allows signal monitoring of each input in mono or listening to both channels in a stereo mode.
Amplifier Signal Type - Audio
Amplifier Type - Other
Spec Sheet available - Yes
Frequency Response:
Line:+/- .5 dB 20-20 kHz; Mic: +/- .65 dB 20-20 kHz
Total Harmonic Distortion +Noise:
< .003 % at 1 kHz
Equivalent Input Noise:
121 dB
Total Gain:
74.7 dBV
Gain of Microphone/Line Switch:
29 dBV
Gain of Input Trim:
28.7 dBV
Gain of Channel Volume:
17 dBV
Range of level pot:
Trim –40.8 to +28.7 dBV; Channel: -61 to +17 dBV
Common mode rejection of input:
Line: -80.9 dB at 60 Hz, unity gain; Mic: -68 dB at 60 Hz, 40 dBV of gain
Maximum Input Level:
Line: +22 dBV; Mic: -7 dBV
Input Impedance:
Line: 40 K Ohms; Mic: 1.5 K Ohms
Maximum Output Level:
+27.6 dBV
Output drive power:
+22 dBV into 600 Ohms
Output Impedance:
100 ohms
Minimum impedance of headphones:
8 ohms
Noise at Unity Gain:
-92.4 dBV Line mode
Noise at 40 dBV of gain Mic mode:
-80.4 dBV
Working signal to noise ratio (at 20 dBv headroom):
Line: 114.6 dB at unity; Mic: 87.4 dB at 40 dBV of gain
Phantom Power:
48 Volts DC
High Pass Filter:
3 dB at 120 Hz; 24 dB per octave slope
Output isolation between channels:
102 dBV at 1 kHz; 95 dBV at 20 kHz
Maximum Output of Headphones:
+12 dBm at 47 Ohms; +7 dBm at 23.5 Ohms
Size:
1 RU
Internal Mains fuse:
.5 amp slow blow type 3ag
AC dropout voltage:
105 VAC 60 Hz
Power Requirements:
120 VAC 60 Hz; Internal jumpers for 230 VAC 50 operation 40 Watts Maximum
MLTSELAMPR
- Multiselector with MultiSelector PRO and 4X