SLX® Wireless Systems are powerful wireless tools that can be set up quickly and used confidently by installers and working bands. Features include auto frequency scan with transmitter setup, exceptional wireless clarity, and Shure patented Audio Reference Companding.

Includes WL93 lavalier microphone, SLX1 bodypack transmitter, SLX4 receiver, tie clip, rackmount kit, two 1/4 wave antennas, power supply, 2 AA batteries, protective bumpers with 8 screws, vinyl bag, and user guide.

Consumer Alert:

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone website at: www.fcc.gov/cgb/wirelessmicrophones. 

• Line of Sight:
• 100 m (300 ft)
• Note: Actual range depends on RF signal absorption,reflection and interference.

Audio Frequency Response:

• 45–15000 Hz
• Note: Dependent on microphone type

Total Harmonic Distortion:

• Ref. ±38 kHz deviation with 1 kHz tone
• <0.5%, typical

Dynamic Range:

• >100 dB, A-weighted

Operating Temperature Range:

• -18°C (0°F) to +50°C (122°F)
• Note: Battery characteristics may limit this range.

Transmitter Audio Polarity:

• Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high impedance 1/4-inch output.

SLX1 Audio Input Level:

• Gain position
• mic: −10 dBV maximum
• 0dB: +10 dBV maximum
• –10dB: +20 dBV maximum

Gain Adjustment Range:

• 30 dB

Input Impedance:

• 1 MΩ

RF Output Power:

• 10–30 mW
• varies by region

Pin Assignments:

• TA4M:
• 1: ground (cable shield)
• 2: + 5 V Bias
• 3: audio
• 4: Tied through active load to ground (On instrument adapter cable, pin 4 floats)

Dimensions: 

• 108mm x 64mm x 19mm (H x W x D)

Weight:

• 81 g (3 oz.), without batteries

Housing: 

• galvanized steel

Power Requirements:

• 2 “AA” size alkaline or rechargeable batteries

Battery Life:

• up to 8 hours (alkaline)

SLX4 Dimensions:

• 42mm X 197mm X 134mm (H x W x D) Weight:
• 816 g (1 lb 13oz.)

Housing:

• galvanized steel

Sensitivity:

• -105 dBm for 12 dB SINAD, typical

Power Requirements:

• 12–18 V DC @ 150 mA, supplied by external power supply (tip positive)

Configuration:

• Impedance balanced

Maximum Audio Output Level:

• Ref. ±38 kHz deviation with 1 kHz tone

XLR connector:

• –13 dBV (into 600 Ωload)
• 6.35 mm (1/4″)
• connector: –2 dBV (into 3 kΩ load)

Impedance:

• XLR connector: 200 Ω
• 6.35 mm (1/4″)

connector: 1 kΩ Pin Assignments

• XLR connector: 1=ground, 2=audio,
• 3=no audio

6.35 mm (1/4″”) connector: 

• Tip=audio, Ring=no audio, Sleeve=ground Image Rejection
• >70 dB, typical Volume Adjustment Range
• 0 dB to -25 dB “