Shure AD2/B87A-G57 Digital Handheld Wireless Microphone Transmitter with Beta 87A Capsule 470 to 616 MHz

Description

Shure AD2Overview

TheShure AD2/B87Ais a digital handheld wireless microphone transmitter compatible with Axient Digital series receivers.

The AD2/B87A comes equipped with the Beta 87A condenser capsule designed to withstand extreme sound pressure levels, while still delivering a remarkably smooth frequency response for vocal performers and presenters. The capsule features a supercardioid polar pattern that offers excellent rejection of off-axis background noise, helping to reduce 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/B87A 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 87A Capsule

• The Beta 87A supercardioid condenser capsule handles SPL levels up to 140 dB and offers a smooth frequency response with a gradual presence rise and controlled proximity effect tailored for vocals.
• The interchangeable capsule design allows you to replace the Beta 87A capsule with a Shure capsule thats ideal for your application and simply screw it onto the transmitterincluding KSM9, KSM8, SM58, VP68, Beta 87C 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) allowfor remote power monitoring via Shures Wireless Workbench software.

Shure AD2Specs

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′ / 100m (Line of Sight)
Latency	2 to 2.9 ms (Selectable)
Encryption	AES 256
Modulation	Proprietary

Transmitter

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 xInternal Single-Band Helical (Handheld)
Power Requirements	Battery
Battery Type	2 xAA (Included) 1 xShure SB900A (Not Included, Replaceable)
Approx. Battery Life	Med.: 8 Hours (Alkaline) Med.: 9 Hours (Lithium Shure SB900A)
Display & Indicators	1 xLCD (Battery Status, Channel, Group, Signal Strength)
Housing	Aluminum
Operating Temperature	0 to 122F / -17 to 50C
Storage Temperature	-20 to 165F / -28 to 73C
Dimensions	2 x 10.1″ / 51 x 256mm
Weight	12oz / 340g (without Batteries)

Microphone

Form Factor	Handheld Capsule
Sound Field	Mono
Capsule	Condenser
Polar Pattern	Supercardioid
Frequency Range	50 Hz to 20 kHz
Maximum SPL	140.5 dB SPL
Sensitivity	-52.5 dBV/Pa at 1 kHz
Dynamic Range	117 dB

Packaging Info

Package Weight	1.75 lb
Box Dimensions (LxWxH)	12.8 x 4.9 x 3.5″