Technical Specifications & Dimensions
Microphone preamplifiers
Measured to the insert send.
| Specification | Value |
|---|---|
| Microphone gain | −10 to +60 dB with the −10 dB pad |
| Line gain | −16 to +44 dB with the −10 dB pad |
| Phantom power | 48 V ±4 V at 10 mA per channel |
| Microphone EIN | <−127.5 dBu |
| CMRR | >80 dB from 100 Hz to 10 kHz |
| Maximum input level | +22 dBu; +32 dBu with pad |
| Microphone input impedance, LO | 220 Ω balanced |
| Microphone input impedance, MED | 1.2 kΩ balanced |
| Microphone input impedance, HI | 2.8 kΩ balanced |
| Line input impedance | >6 kΩ balanced at all impedance settings |
| Frequency response | ±0.5 dB, 10 Hz–100 kHz |
| Crosstalk | <−85 dBu at 1 kHz and 10 kHz |
| THD+N at 0 dBu, 1 kHz | 0.003% (−90.5 dBu) |
| SNR | >90 dB |
| HPF | 25–250 Hz, second order, 12 dB/octave |
| XLR wiring | Pin 2 hot, pin 3 cold, pin 1 shield |
| 1/4-inch TRS wiring | Tip hot, ring cold, sleeve shield |
The line input level at the Combi jacks is affected by the input-impedance switch position. This can be used as a second pad control to adjust line-input ranges on all channels.
Discrete JFET D.I. — channels 1 and 2
Measured to the line outputs / insert send.
| Specification | Value |
|---|---|
| D.I. gain | −10 to +60 dB with the −10 dB pad |
| Maximum input level | +16 dBu typical; +22 dBu |
| Input impedance | 1 MΩ unbalanced |
| Frequency response | ±0.5 dB, 10 Hz–50 kHz |
| THD+N at 0 dBu, 1 kHz | <0.03% (−70 dBu) |
| SNR | 89 dB |
| 1/4-inch TS wiring | Tip hot, sleeve shield |
Line outputs / insert sends
| Specification | Value |
|---|---|
| Maximum output level | +27.5 dBu |
| Output impedance | <100 Ω balanced |
ADC line inputs / insert returns
Measured at the AES output under AES-17.
| Specification | Value |
|---|---|
| Maximum input level | +18 dBu |
| Digital reference | 0 dBFS = +18 dBu |
| Input impedance | >10 kΩ balanced |
| Frequency response | ±0.5 dB, 10 Hz to Fs/2 |
| Crosstalk | <−80 dBu at 1 kHz and 10 kHz |
| THD+N at −1 dBFS, 1 kHz | <0.002% (−94 dB) |
| THD+N at −6 dBFS, 1 kHz | <0.002% (−94 dB) |
| Dynamic range | 113 dB unweighted; 115 dB A-weighted |
| Peak LED line-up | +16 dBu (−2 dBFS) |
| Signal LED line-up | −10 dBu (−28 dBFS) |
Digital I/O and clock
| Specification | Value |
|---|---|
| ADAT SMUX | 8 channels, 44.1–96 kHz |
| AES / S/PDIF | 8 channels, 44.1–96 kHz |
| Clock | Internal or external |
| Word-clock input | 75 Ω BNC with optional 75 Ω termination |
Power supply
| Specification | Value |
|---|---|
| Design | High-stability, low-noise internal SMPS; fanless operation |
| Line voltage | 90–264 V AC |
| Internal rails | ±18 V DC, +48 V DC and +5 V DC |
| Fuse | T1A, 1 A time-delay |
| Maximum consumption | 40 W |
Physical specifications
| Specification | Value |
|---|---|
| Rack size | 1RU |
| Front-panel width | 482 mm |
| Chassis width shown in drawing | 440 mm |
| Maximum depth | 321 mm |
| Chassis depth shown in drawing | 280 mm |
| Height | 44.4 mm |
| Front-panel thickness shown in drawing | 3 mm |
| Weight | 4.0 kg |
