Audio-Technica’s System 9 is a four-channel frequency-agile wireless system designed to provide rock-solid performance along with easy setup and clear, natural sound quality. Featuring sleek, stackable, contemporary styling, System 9 is available in handheld, headworn, guitar, lavalier and body-pack configurations. This bodypack system includes the Master Series by Sound Professionals ultra-low noise omnidirectional lapel microphone and offers four compatible user-switchable VHF channels (169.505, 170.245, 171.045, and 171.905 MHz)
- Easy operation and clear, natural sound quality
- 4 selectable frequency-coordinated VHF channels
- Balanced XLR and unbalanced 1/4″ output jacks enable use with a wide variety of audio gear
- Reliable performance and durable construction
- Advanced dipole antenna system for extended operating range
Microphone specifications:
- Pickup Pattern: Omnidirectional
- Cable: Heavy-duty shielded, flexible cable
- Frequency Range: 20 Hz – 20,000 Hz +/-1dB
- Sensitivity: -32dB ±3dB @ 94dB SPL
- S/N Ratio: 75dB
- Maximum SPL at 12vdc: 120dB
- Dynamic Range: 119dB, 1 kHz at Max SPL
- Impedance: 2.2 kOhms
- Voltage range – 2vdc – 12vdc
- Current draw: 500 µA
Overall System Specifications:
| Operating Frequencies | VHF highband, 169 MHz to 172 MHz |
|---|---|
| Modulation Mode | FM |
| Maximum Deviation | +/-10 kHz |
| Frequency Response | 80 Hz to 13 kHz |
| Operating Range | 200′ (60 m) typical Open range environment with no interfering signals |
| Total Harmonic Distortion | <1% (at 1 kHz, +/-10 kHz deviation) |
| Operating Temperature Range | 40° F (4° C) to 110° F (43° C) Battery performance may be reduced at very low temperatures |
| Notes | First-generation System 9 (original) components: ATW-R900 receiver ATW-T901 body-pack transmitter Click here for the original System 9 Owner’s Manual. |
| Body Pack Specifications: | |
|---|---|
| RF Power Output | 10 mW |
| Battery Life | 8 hours (alkaline) Depending on battery type and use pattern |
| Battery Type | Two 1.5V AA not included |
| Dimensions | 2.76″ (70.2 mm) W x 4.08″ (103.7 mm) H x 0.98″ (24.9 mm) D |
| Input Connections | Four-pin Locking Connector Pin 1: GND Pin 2: INST INPUT Pin 3: MIC INPUT Pin 4: DC BIAS +9V |
| Net Weight | 2.8 oz (80.0 grams) without batteries |
| Spurious Emissions | Following federal and national regulations |
| Receiver Specifications: | |
| Receiving System | Non-diversity, single-channel, dual antenna system |
| Image Rejection | 50 dB minimum |
| RF Sensitivity | 20 dBuV at 60 dB S/N ratio (50 ohms termination) |
| Power Supply | 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply |
| Operating Temperature Range | 40° F (4° C) to 110° F (43° C) |
| Dimensions | 7.48″ (190.0 mm) W x 1.82″ (46.2 mm) H x 5.06″ (128.5 mm) D |
| Weight | 12.0 oz (337 grams) |
| Accessories Included | Power supply |
| Audio Output | Nominal Output Level XLR, balanced: 350 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load) 1/4″ (6.3 mm), unbalanced: 700 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load) |
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