Detail 01
Battery runtime
The SB900A rechargeable battery is rated for up to 9 hours; LR6 AA batteries are rated for 8 hours.
Product detailSKU #1500000328901
ShureAxient Digital AD2/K9B Handheld Wireless Microphone Transmitter Band G57
Independent shopping perspective
The Korena take
Shure’s AD2/K9B is a handheld Axient Digital transmitter for Band G57, combining wide tuning, High Density mode, and encryption in a cast aluminum body. It can run on LR6 AA batteries or an SB900A rechargeable Li-Ion battery, with dockable charging available for the rechargeable option. The integrated single-band helical antenna keeps the transmitter self-contained, while selectable output power is available at 2, 10, or 35 mW where regional settings allow.
Strong match
Who this is for
- Axient Digital wireless setups in Band G57 that require wide tuning, High Density mode, and encryption.
- Workflows that alternate between AA batteries and SB900A rechargeable power with dockable charging.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Mic offset range: –12 to 21 dB in 3 dB steps
Provides stepped adjustment across the listed offset range.
Detail 03
Occupied bandwidth: under 200 kHz
The transmitter’s occupied bandwidth is specified below 200 kHz.
Detail 04
Dimensions and weight
Measures 256 mm × 51 mm and weighs 340 g.
Final check
Know before you order
- 01Confirm that Band G57 and the region-dependent 2 mW, 10 mW, or 35 mW output options suit your setup.
- 02SB900A rechargeable operation and LR6 AA operation have different stated runtimes.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What batteries can the AD2/K9B use?
It uses either an SB900A rechargeable Li-Ion battery or LR6 AA batteries.
02How long does it run?
The SB900A is rated for up to 9 hours, while LR6 AA batteries are rated for 8 hours.
03Is charging available?
Dockable charging is available when using the SB900A rechargeable battery.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsSound
- Power
- 2 mW, 10 mW, 35 mW (See Frequency Range and Ouput Power table, varies by region.)
2 detailsConnections & power
- Battery Type
- Shure SB900A Rechargeable Li-Ion or LR6 AA batteries 1.5 V
- Maximum Input Level
- 145 dB SPL, typical (SM58)
3 detailsSize & weight
- Weight
- 340
- Occupied Bandwidth
- <200 kHz
- Dimensions
- 256 mm × 51 mm (10.1 in. × 2.0 in.) L × D
8 detailsOther
- Shure Sb900a
- up to 9 hours
- Modulation Type
- Shure Axient Digital Proprietary
- Housing
- Cast aluminum
- Configuration
- Unbalanced
- Alkaline
- 8 hours
- 1 KHZ At 1 Thd
- Note: dependent on microphone type
- Mic Offset Range
- –12 to 21 dB (in 3 dB steps)
- Antenna Type
- Integrated Single-Band Helical
