Whirlwind DA2M Audio Distribution Amplifier for Mic Levels with Headphone Out
Product Highlights:
- Electronically balanced XLR outputs
- Input gain controls
- Low cut switch to reduce low frequency noise
- Dual channel monitoring
- Whirlwind DA2M Audio Distribution Amplifier
- 2 Year Limited Warranty
Whirlwind DA2M Audio Distribution Amplifier for Mic Levels with Headphone Out
Whirlwind DA2M Audio Distribution Amplifier for Mic Levels with Headphone Out
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.
| Whirlwind DA2M Specs |
|---|
| 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 |
17.0 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 |
| Isolation between input channels |
Line at unity:
112 dBV at 1 kHz
98 dBV at 20 kHz
Mic at 40 dBV of gain:
90 dBV at 1 kHz
75 dBV at 20 kHz |
| Clip LED threshold |
LED |
Headroom |
| >Red |
1 dBV |
| Yellow |
12 dBV |
| Green 1 |
24 dBV |
| Green 2 |
36 dBV |
| 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 |
| Max Output of Headphones |
+12 dBm at 47 Ohms
+7 dBm at 23.5 Ohms |
| Power consumption |
Condition |
Amps AC |
| Idle |
09 |
| Full clean |
.195 |
| Max |
.30 |
| 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 Max. |
