Shure BLX188/CVL Wireless Dual Presenter System With Two CVL Lavalier Microphones

The entry to Shure quality lavalier microphones in a dual system for spoken word applications. Features analogue wireless transmission.

Environments: Club, Live Performance, Place of worship, Rehearsal Space

Industries: Education, House of Worship

Shure BLX® Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage.

Frequency Range and Transmitter Output Level

Band	Range	Output Power
H9	512 to 542 MHz	10 mW
h20	542 to 572 MHz	10 mW
h21	572 to 596 MHz	10 mW
J11	596 to 616 MHz	10 mW

Includes

• 1 – BLX88 dual-channel receiver
• 2 – BLX1 bodypack transmitters
• 2 – CVL lavalier microphones
• 1 – PS24 Power Supply
• 2 – lavalier clips
• 2 – lavalier windscreens
• user guide

BLX88 Specs

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

1.50 in. X 12.13 in. X 3.98in. (38 mm X 308 mm X 101 mm) H x W x D

Weight

15.1 oz. (429 g)

Housing

Molded ABS

Power Requirements

12–15 V DC @ 235 mA (BLX88, 320 mA), supplied by external power supply (tip positive)

BLX1 Specs

Audio Input Level

max	-16 dBV maximum
min (0 dB)	+10 dBV maximum

Gain Adjustment Range

26 dB

Input Impedance

1 MΩ

RF Transmitter Output

10 mW, typical

varies by region

Dimensions

4.33 in. X 2.52 in. X 0.83 in. (110 mm X 64 mm X 21 mm) H x W x D

Weight

2.6 oz. (75 g), without batteries

Housing

Molded ABS

Power Requirements

2 LR6 AA batteries, 1.5 V, alkaline

Battery Life

up to 14 hours (alkaline)

CVL Specs

Type

Electret Condenser

Frequency Response

60 Hz to 12,000 Hz

Polar Pattern

Unidirectional (Cardioid)

Output Impedance

@ 1 kHz

600 Ω

Audio Output Level

-43.5 dBV/Pa

Signal-To-Noise Ratio [1]

@ 1 kHz

72 dB

Maximum SPL [1]

1000 Ω load, @ 3%THD

139.0 dB

Dynamic Range [1]

@ 1 kHz, 1000 Ω load

117.0 dB

Equivalent Output Noise [1]

typical, A-Weighted

22 dB

Power Requirements

+5 V DC (nominal), 10 V maximum (DC bias)

Polarity

Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1

Cable

1.3 m (50 in.)

Connector

TA4F

Net Weight

25 g (0.88 oz.)

[1] Measurements taken using RK100PK preamp set @ 0 dB using 8k bias resistor.

*All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity.