User Manual

Shure Incorporated
20/28
-10dB -10 dBV maximum
Gain Adjustment Range
10 dB
RF Transmitter Output
10 mW, typical
varies by region
Dimensions
8.82 in. X 2.09 in. (224 mm X 53 mm) L x Dia.
Weight
7.7 oz. (218 g) without batteries
Housing
Molded ABS
Power Requirements
2 LR6 AA batteries, 1.5 V, alkaline
Battery Life
up to 14 hours (alkaline)
BLX4 & BLX88
Output Impedance
XLR connector 200 Ω
6.35 mm (1/4") connector 50 Ω
Audio Output Level
Ref. ±33 kHz deviation with 1 kHz tone
XLR connector –27 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
BLX4 1.57 in. X 7.40 in. X 4.06in. (40 mm X 188 mm X 103 mm) H x W x D
BLX88 1.50 in. X 12.13 in. X 3.98in. (38 mm X 308 mm X 101 mm) H x W x D