Features
BLX2 Handheld Transmitter:

Integrated microphone capsule design, featuring trusted Beta 58A
-10 dB gain attenuation
Lightweight, rugged construction
Color ID caps (available separately)
BLX4R Single Channel Half-rack Receiver:

One-touch QuickScan frequency selection quickly locates the best open frequency (in case of interference)
Up to 12 compatible systems per frequency band (region-dependent)
XLR and ¼” output connectors
Adjustable audio output level
Removable antennas for quick antenna setup
LCD Display with detailed RF and audio metering
Rack mount kit included
Tech Specs
Compatible systems per frequency band: 12
Auto Setup Features: Group Scan/ Channel Scan
Audio Reference Companding: Yes
Included Antennas: Detachable ¼ wave antenna
Antenna Options: Yes
PC Control: No
Rack Hardware: Included
Case: Molded ABS, steel
Transmitter Display: LED
Receiver Display: Multi-function Backlit LCD + LEDs
Battery, Endurance: 2AA: 14 h
Environment: Karaoke, Music Clubs, Corporation, Hotels, House of worship, Small Rental Houses, Schools
Further Technical Specs
SM58 with BLX2 Handheld Transmitter

Audio Input Level
gain 0dB -20 dBV maximum
gain -10dB -10 dBV maximum
Gain Adjustment Range
10 dB
RF Transmitter Output
10 mW, typical
varies by region
Dimensions
224 mm X 53 mm dia. (8 7/8 X 2 1/8 in.)
Weight
218 g (7.7 oz.) (without batteries)
Housing
Molded ABS
Power Requirements
2 LR6 AA batteries, 1.5 V, alkaline
Battery Life
up to 14 hours (alkaline)
BLX4R Single Channel Half-Rack Receiver

Output Impedance
XLR connector: 200 Ω
6.35 mm (1/4") connector: 50Ω
Audio Output Level
Ref. ±33 kHz deviation with 1 kHz tone
XLR connector: –20.5 dBV (into 100 kΩ load)
6.35 mm (1/4") connector: –13 dBV (into 100 kΩ load)
RF Sensitivity
-105 dBm for 12 dB SINAD, typical
Image Rejection
>50 dB, typical
Dimensions
50 mm X 198 mm X 163 mm H x W x D
Weight without antennas
998 g (2.2 lb.)
Housing
Molded ABS, steel
Power Requirements
12–15 V DC @ 260 mA, supplied by external power supply (tip positive)