Générateur Audio NTI MR2 [MR2] Avis/Critiques
Le MR2 est un générateur audio offrant une gamme complète de signaux de tests analogiques pour le réglage, la maintenance et la réparation d’équipements audio professionnels. L’encodeur rotatif entouré de touches de commande permet une utilisation rapide et intuitive, sans altérer la précision de réglage. La manipulation du générateur est facilité par un afficheur LCD rétro-éclairé, un bouton de coupure (Mute), une dragonne de sécurité, un connecteur pour alimentation externe et une interface USB pour sa mise à jour.
• Générateur de signal sinusoïdal, carré, à balayage, bruit, etc... • Résolution en fréquence : 0.01Hz • Connecteur d’alim. externe et USB • LCD rétro-éclairé et bouton de coupure • Niveau de sortie max : +8 dBu • Distorsion < -90 dB (0.003%)
...
Technical Data MR2 / MR-PRO
|
|
MR2 |
MR-PRO |
| Outputs |
|
Balanced XLR, unbalanced RCA phantom power resistant |
| Inputs |
|
DC power supply, USB |
DC power supply, USB XLR for cable test |
| Wave Forms |
|
Sine, Pink Noise, White Noise Polarity test signal, Delay test signal |
| Wave File Format |
Sampling freq.: Resolution: Output level: |
|
48 kHz 16 Bit, Mono 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 0.5 - 20 seconds per cycle |
| Level Units |
|
dBu, dBV, V |
dBu, dBV, V dBFS, % |
| 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 |
|
± 0.5 dB |
± 0.2 dB |
| 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 < 10 μV |
-96 dB (0.0016 %) @ 18 dBu Noise floor < 5 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 |
| 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 |
|
|
32 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: |
typical |
20 h |
10 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 |
|
MR2 or MR-PRO?
The Minirator is available as MR2 and MR-PRO. While the MR2 has been optimized for “Value at a most attractive price“, the MR-PRO has been developed with additional innovative functionality for even more demanding applications. |
 MR2
|
 MR-PRO
|
| Generator |
|
|
|
Output Level max. Flatness Output Impedance THD+N typical |
8 dBu +/- 0.5dB 200 Ω < -90 dB |
18 dBu +/- 0.2dB 12.5 Ω < -96 dB |
| Measurement Functions |
|
|
|
Phantom Power Measurement Impedance and Balance XLR Cable Tester |
- - - |
YES YES YES |
| Wave Forms |
|
|
|
Sine, Stepped & Continuous Sweep Pink Noise, White Noise Delay- and Polarity Test Signal Proprietary Wave Files (*.WAV) |
YES YES YES - |
YES YES YES YES |
Configurations Storage Protective Shock Jacket Hand Strap, USB Cable |
- - YES |
YES YES YES |
|