Description
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. The system offers four compatible user-switchable VHF channels (169.505, 170.245, 171.045, and 171.905 MHz).
Each System 9 configuration includes the ATW-R900a receiver and either a body-pack transmitter or handheld microphone/transmitter. The ATW-R900a is a non-diversity, single-channel receiver with advanced dipole antenna design for extended operating range, which improves operation by providing a ground element in addition to the usual signal element. The ATW-R900a also offers volume control along with AF Peak, RF and Power indicator lights.
Features
- 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
Configurations
-
ATW-901a/G
ATW-R900a receiver and ATW-T901a body-pack transmitter with AT-GcW guitar/instrument input cable. -
ATW-901a/H
ATW-R900a receiver and ATW-T901a body-pack transmitter with PRO 8HEcW headworn microphone. -
ATW-901a/L
ATW-R900a receiver and ATW-T901a body-pack transmitter with omnidirectional lavalier microphone. -
ATW-902a
ATW-R900a receiver and ATW-T902a handheld dynamic unidirectional microphone/transmitter. Includes AT8456a Quiet-Flex™ stand clamp. -
ATW-R900a
System 9 receiver. -
ATW-T901a
System 9 body-pack transmitter. -
ATW-T902a
System 9 handheld microphone/transmitter with undirectional dynamic element. Includes AT8456a Quiet-Flex™ stand clamp.
Specifications
| OVERALL SYSTEM SPECIFICATIONS | |
|---|---|
| Operating Frequencies | VHF highband, 169 MHz to 172 MHz |
| Modulation Mode | FM |
| Maximum Deviation | +/-10 kHz |
| Dynamic Range | >/=90 dB (A-weighted), typical |
| Total Harmonic Distortion | <1% (at 1 kHz, +/-10 kHz deviation) |
| Operating Range | 200' (60 m) typical Open range environment with no interfering signals |
| Operating Temperature Range | 40Ì´åÁ F (4Ì´åÁ C) to 110Ì´åÁ F (43Ì´åÁ C) Battery performance may be reduced at very low temperatures |
| Frequency Response | 80 Hz to 13 kHz |
| Maximum Simultaneous Use (Recommended) | 200' minimum |
| 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) |
| 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) |
| Power Supply | 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply |
| Operating Temperature Range | 40Ì´åÁ F (4Ì´åÁ C) to 110Ì´åÁ F (43Ì´åÁ C) |
| Dimensions | 7.48" (190.0 mm) W x 1.82" (46.2 mm) H x 5.06" (128.5 mm) D |
| Net Weight | 12.0 oz (337 grams) |
| Accessory Included | Power supply |
| BODY-PACK TRANSMITTER SPECIFICATIONS | |
|---|---|
| RF Power Output | 10 mW |
| Spurious Emissions | Following federal and national regulations |
| Input Connections | Four-pin Locking Connector
Pin 1: GND Pin 2: INST INPUT Pin 3: MIC INPUT Pin 4: DC BIAS +9V |
| Batteries | Two 1.5V AA
not included |
| Battery Life | 8 hours (alkaline)
Depending on battery type and use pattern |
| Dimensions | 2.76" (70.2 mm) W x 4.08" (103.7 mm) H x 0.98" (24.9 mm) D |
| Net Weight | 2.8 oz (80.0 grams)
without batteries |
| HANDHELD TRANSMITTER SPECIFICATIONS | |
|---|---|
| RF Power Output | 10 mW |
| Spurious Emissions | Following federal and national regulations |
| Batteries | Two 1.5V AA
not included |
| Battery Life | 8 hours (alkaline)
Depending on battery type and use pattern |
| Dimensions | 9.91" (251.8 mm) long,
2.11" (53.5 mm) diameter |
| Net Weight | 9.2 oz (260 grams)
without batteries |
| Accessory Included | AT8456a Quiet-FlexåäÌ£å¢ stand clamp |
First-generation System 9 (original) components:
ATW-R900 receiver
ATW-T901 body-pack transmitter
ATW-T902 unidirectional dynamic microphone transmitter
Click here for the original System 9 Owner's Manual.
CONSUMER ALERT
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC's wireless microphone website at www.fcc.gov/cgb/wirelessmicrophones.
