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The Shure AD2/87C is a digital handheld wireless microphone transmitter compatible with Axient Digital series receivers.
The AD2/87C comes equipped with the Beta 87C condenser capsule designed to deliver an extremely smooth frequency response with extended high end for vocal performers and presenters. The capsule features a cardioid pick-up pattern that reduces rear- and off-axis background noise, helping to control feedback.
The transmitter operates in a single 146 MHz ultrawide UHF bandwidth with selectable 2/10/35mW RF output power and a transmission range up to 330'. It provides up to 8 hours of operation on two AA batteries and up to 9 hours with an SB900A lithium-ion rechargeable battery (available separately).
With a durable, moisture-resistant, lightweight aluminum case, the AD2/87C transmitter delivers pristine audio quality and RF performance, AES 256-bit encryption for secure transmission, and advanced rechargeability options, making it ideal for high-profile, sound-reinforcement applications.
Interchangeable Design with Beta 87C Capsule
- The Beta 87C condenser capsule offers a gradual presence rise and controlled proximity effect tailored for clear, intelligible vocals.
- The interchangeable capsule design allows you to replace the Beta 87C capsule with a Shure capsule that’s ideal for your application and simply screw it onto the transmitter—including KSM9, KSM8, SM58, Beta 87A capsules, and more.
User-Friendly Features in a Rugged Housing
- The unit quickly syncs with a wireless receiver via infrared at the touch of a button.
- Automatic Gain adjusts the mic input level for you.
- The power button conveniently doubles as mute switch, while preserving RF lock.
- Frequency and power lockout functions prevent accidental or unauthorized changes during events.
- A backlit LCD with easy-to-navigate menu and controls lets you quickly access frequency, group, and channel settings, along with mute and lock status, RF output, and remaining battery life.
- Offset function lets you balance mic levels when assigning multiple transmitters to a single receiver slot. Adjustment range: -12 to +21 dB.
- 2/10/35mW selectable RF output power allows you to increase either the transmitter's range or the number of mics operating simultaneously.
- Two transmission modes: Standard for optimal coverage and High-Density for maximum system channel count and robust coverage.
Convenient Power Management Options
- Optional SB900A rechargeable battery offers intelligent power management with precision metering in hours and minutes, and zero memory effect.
- External charging contacts allow for docked battery charging.
- SBC220 two-bay and SBC840 eight-bay networked chargers (both available separately) allow for remote power monitoring via Shure’s Wireless Workbench software.
Shure AD2 Specs
| Wireless Transmission | Digital UHF |
| RF Frequency Band | 417 to 616 MHz |
| RF Bandwidth | 146 MHz |
| Frequency Step Size | 25 kHz |
| Max Operating Range | 328.1' / 100 m (Line of Sight) |
| Latency | 2 to 2.9 ms (Selectable) |
| Encryption | AES 256 |
| Modulation | Proprietary |
| Form Factor | Handheld |
| RF Output Power | 2 / 10 / 35 mW |
| Audio I/O | None |
| Muting | Mute Switch |
| Audio Input Level | 145 dB |
| Gain Range | -12 to +21 dB (3 dB Steps) |
| Sync Method | IR |
| Antenna | 1 x Internal Single-Band Helical (Handheld) |
| Power Requirements | Battery |
| Battery Type | 2 x AA (Included) 1 x Shure SB900A (Not Included, Replaceable) |
| Approx. Battery Life | Med.: 8 Hours (Alkaline) Med.: 9 Hours (Lithium Shure SB900A) |
| Display & Indicators | 1 x LCD (Battery Status, Channel, Group, Signal Strength) |
| Housing | Aluminum |
| Operating Temperature | 0 to 122°F / -17 to 50°C |
| Storage Temperature | -20 to 165°F / -28 to 73°C |
| Dimensions | 2 x 10.1" / 51 x 256 mm |
| Weight | 12 oz / 340 g (without Batteries) |
| Form Factor | Handheld Capsule |
| Sound Field | Mono |
| Capsule | Condenser |
| Polar Pattern | Cardioid |
| Frequency Range | 50 Hz to 20 kHz |
| Maximum SPL | 139 dB SPL |
| Sensitivity | -51 dBV/Pa at 1 kHz |
| Dynamic Range | 117 dB |