| General Audio |
| Frequency Response |
10 Hz-20 kHz, ±0.2 dB, mic in/main out |
| Distortion (THD N) |
0.008%, measured at 1 kHz, mic in/main out |
| S/N Ratio |
86 dB, referenced to –42 dBu mic in/–2 dBu main out |
| Dynamic Range (A-weighted) |
108 dB |
| Connectors: |
| Mic In, Line In 1 & 2 |
3-pin female XLR |
| Main Out, Talkback Out |
3-pin male XLR |
| Headphone Out |
¼-inch 3-conductor phone jack |
| 24 Vdc Power In |
coaxial power jack, 2.1 x 5.5 mm, locking bushing, compatible with Switchcraft S760K plug |
| Spare Connector Locations: 2 |
| Allows one or two Neutrik NC*D-L-1 connectors to be installed (*=3F, 3M, 5F, 5M, 6F, 6FS, etc.) |
| Microphone Input/Preamplifier: |
| Type |
electronically balanced |
| Input Impedance |
2 k ohms, nominal |
| CMRR |
>80 dB, 20 Hz-20 kHz, 40 dB gain |
| Gain Range |
20 to 60 dB, nominal, adjustable in 10 dB steps; 0 dB (no gain) also available |
| Compatibility |
dynamic or phantom-powered mics |
| Phantom Power |
45 volts DC nominal, meets IEC 61938 P48 standard |
| Line Inputs: 2 |
| Type |
balanced, transformer-coupled |
| Impedance |
10 k ohms |
| Nominal Level |
–12 dBV to 6 dBu, adjustable |
| 2-Channel Auxiliary Input |
| Implementation |
optional IFB Input Card Kit (Studio Technologies order code 31212) can be installed into back panel |
| Type |
2-channel, unbalanced, transformer-coupled |
| Impedance |
10 k ohms, nominal |
| Nominal Level |
–10 dBu |
| Compressor |
| Threshold |
2 dB above nominal level |
| Attack/Release Time |
2 mSec/100 mSec, nominal |
| Slope |
5:1, nominal |
| Status LED |
compressor active |
| Main Output |
| Type |
balanced, transformer-coupled |
| Nominal Level |
–2 dBu |
| Maximum Level |
20 dBu into 2 k ohms |
| Impedance |
100 ohms, nominal |
| Source |
output of microphone preamplifier or output of compressor, selectable |
| Talkback Output |
| Type |
transformer-coupled with series capacitors and isolation resistors |
| Impedance |
600 ohms, nominal |
| Nominal Level |
4 dBu |
| Maximum Level |
11 dBu (compressor restricts maximum) |
| Headphone Output: 1, stereo |
| Compatibility |
intended for connection to mono or stereo headphones or headsets with nominal impedance of 100 ohms or greater |
| Type |
voltage driver |
| Maximum Output Voltage |
12 Vpp, 150 ohm load |
| Relay Contacts: 2 |
| Functions |
follows status of main and talkback outputs |
| Type |
form-A (normally open, not-shorted) solid-state relay contact |
| Rating |
100 mA, 60 volts AC/DC, maximum |
| Contact Resistance |
16 ohms, maximum |
| Access |
requires user-implemented connection method |
| Power Source |
| 24 volts DC nominal, 70 mA @ 24 volts DC; acceptable range 20-30 volts DC. Each unit shipped with a universal input/24 volt DC output power supply. |
| Dimensions (Overall): |
| Width |
14.2cm |
| Height |
8.4cm |
| Depth |
21.6cm |
| Weight |
1.5kg |