| | | MR2 | MR-PRO |
| Outputs | | Balanced XLR, unbalanced RCA
phantom power resistant |
| Inputs | | DC power supply, USB | DC power supply, USB
XLR for cable test |
| Signal Wave Forms | | Sine, Polarity Test Signal, Delay Test Signal
White Noise (crest factor = 3.05)
Pink Noise (crest factor = 4.5)
Gated Pink Noise (1-9 seconds)
Wave File playback (MR-PRO) |
| Wave File Format | Sampling freq.:
Resolution:
Output level: | | 48 kHz
16 Bit, Mono & Stereo
0 dBFS = 18 dBu (sine)
according to EBU R68 |
| Frequency Setting | Range:
Increment:
Accuracy: | 10 Hz - 20 kHz
in 1 digit steps
0.01% |
| Stepped Sweep Function | Freq. range:
Increment:
Sweep speed: | freely selectable
1/1, 1/3, 1/6, 1/12 octave
selectable 0.5 - 5 seconds |
| Continuous Sweep (Chirp) Function | Freq. range:
Increment:
Chirp speed: | freely selectable
Linear / Logarithmic
1.0 - 99 seconds per cycle |
| Level | Units:
Increment: | dBu, dBV, V
in 1 digit steps | dBu, dBV, V, dBFS, %
in 1 digit steps (e.g. 0.1 dBu) |
| Output Level Ranges | Sine, Sweep, Chirp
White Noise
Pink Noise
Polarity, Delay Test | -80 dBu to + 8 dBu
-80 dBu to + 0 dBu
-80 dBu to - 2 dBu
-80 dBu to +6 dBu | - 80 dBu to +18 dBu
- 80 dBu to +10 dBu
- 80 dBu to + 8 dBu
- 80 dBu to +16 dBu |
| Flatness | RL > 600 Ohm | ± 0.5 dB | +/-0.2 dB @ 10 Hz - 12 kHz
-0.1dB/+0.3dB @ 12kHz - 20kHz |
| Accuracy @ 1kHz | | ± 0.5 dB | ± 0.2 dB |
| THD+N | 22 Hz - 22 kHz, average, @ 1 kHz, typical | -90 dB (0.0032 %) @ 8 dBu
Noise Floor typ. 25 μV | -96 dB (0.0016 %) @ 18 dBu
Noise Floor typ. 15 μV |
| Output Impedance | | 200 Ohm balanced | 12.5 Ohm balanced
Imax = 10 mA |
| Impedance Measurement | Method:
Meas. range:
Accuracy: | | Absolute value Z
4 Ohm - 50 kOhm balanced
2 Ohm - 25 kOhm unbalanced
@ f = 30 Hz to 10 kHz (Sine)
@ Level from -20 to +18 dBu
± 10 % or ± 2 Ohm |
| Power Calculation | Reference voltage | | 25 V, 35 V, 50 V, 70.7 V,
100 V, 140 V, 200 V |
| Phantom Power Reading | Meas. range:
Accuracy: | | 0 - 54 V
± 3 % or ± 0.5 V |
| USB Functionality | | Firmware update | Firmware update
Mass Storage Device |
| Flash Memory | | | 512 MByte
for storing wave files and configurations |
| Display | | Graphical, with back light |
| Auto-Power-Off | | 10, 30, 60 minutes or OFF |
| Batteries | | 3 x AA Alkaline dry cells or rechargeable equivalents |
| Battery Life | 0 dBu, no load, typ. | 14 h | 8 h |
| Temperature Range | | 0° to 45° C (32° to 113° F) |
| Humidity | | < 90% rel. humidity, non-condensing |
| Dimensions (LxWxH) | | 147 x 74 x 41 mm | 152 x 81 x 43 mm
(incl. protective shock jacket) |
| Weight | including batteries | 250 g (9 oz.) | 310 g (11 oz.) |
| | | MR2 | MR-PRO |
