The Shure AD2/B58 is a digital handheld wireless microphone transmitter compatible with Axient Digital series receivers. The AD2/B58 comes equipped with a Beta 58A dynamic capsule designed for close-up vocals, with brightened midrange and bass roll-off to control proximity effect. The capsule features a supercardioid polar pattern that ensures high gain before feedback, maximum isolation from other sound sources, and minimum off-axis tone coloration.
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/B58 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.
Specifications:
| RF Channel Scanning |
Auto-Scan
|
| Max Operating Range |
328.1' / 100 m (Line of Sight)
|
| Latency |
2 to 2.9 ms (Selectable)
|
| Encryption |
AES 256
|
| Timecode Support |
No
|
| Built-In Recorder |
No
|
| Mobile App Compatible |
No
|
| RF Output Power |
2 / 10 / 35 mW
|
| Antenna |
1x Internal Single-Band Helical (Handheld)
|
| Built-In Microphone |
No
|
| Included Cable Connector |
No
|
| Muting |
Mute Switch
|
| Gain Range |
-12 to +21 dB (3 dB Steps)
|
| Auto-Level/Gain |
Yes
|
| Sync Method |
IR
|
| Display & Indicators |
1x LCD (Battery Status, Channel, Group, Signal Strength)
|
| Color |
Silver
|
| Transmitter Battery Life |
Med.:
8 Hours (Alkaline) Med.: 9 Hours (Lithium Shure SB900A) |