Weight:

2.0 oz (56 g) with battery

Material and Color:

ABS plastic, Black and Grey

Battery Type, Life:

BAT AP07D NiMH Battery Pack, 7 hours

Operating Range:

up to 3,063 sq ft (285 sq m) when used with the TX9 emitter or TX90 transmitter in single-channel mode

up to 1,000 sq ft (93 sq m) when used with the TX75 in single-channel mode

Modulation Frequency:

2.3 MHz or 2.8 MHz or stereo

Frequency Response:

200 Hz to 8 kHz, ± 5 dB

Signal to Noise Ratio:

60 dB at 10 m

Controls:

Volume control thumbwheel

3-position selection switch (2.3 MHz, 2.8 MHz, stereo)

Acoustic Output:

120 dB MAX SSPL90 with 2 cc coupler

Compatibility:

Compatible with 2.3 MHz and 2.8 MHz IR transmitters, WIR TX900 and WIR TX925 systems

Battery Charger:

CHG 518

Power Switch:

Built into receiver “arms”

Ear pads:

Uses EAR 240 silicon eartips

Approvals:

CE, RoHS

Warranty:

5 years (90 days on battery)

Dimensions, Weight:

10.0" W (25.4 cm) x 3.1" D (7.9 cm) x 1.5" H (3.8 cm) w/o faceplate or 2.5" H (6.4 cm) w/faceplate, 0.6 lbs (0.3kg)

Color:

Black with silver colored silk screen and silver colored faceplate

Optional: white colored faceplate

Power Supply:

Desktop style international power supply with IEC line cord, 100-240 VAC input, 50-60Hz, 24W; 48VDC output

DC Power Input:

2.5mm ID barrel connector, 48 VDC, 0.4A center positive

Power Indicator:

Green LED

Sleep/Power Save Mode:

Shuts off carrier when no audio is present for 3 minutes

Modulation:

FM Wideband, ±50kHz deviation max, 50 μS pre-emphasis

Carrier Frequencies:

TX-75:  2.3 MHz (Ch1) and 2.8 MHz (Ch2)

TX75B - 3.3 MHz (Ch1) and 3.8 MHz (Ch2)

Default at power on = carriers off. Carriers are automatically enabled upon presence of audio.

Emitter IR Power:

0.7 W

Master Only Coverage Area
(minimum, 1-Ch mode):

5,000 sq. ft in single-channel mode with the RX22-4 receiver (464 sq. m)

3,000 sq. ft in single-channel mode with the RX15-2 receiver (279 sq. m)

2,000 sq. ft in single-channel mode with the RX18 receiver (186 sq. m)

Audio Inputs / Controls:

Line inputs: RCA jack for Ch1 and Ch2 accept line level, balanced or unbalanced audio

Line in balanced/unbalanced switch: selects balanced or unbalanced line level audio for RCA jacks

Microphone input:

3.5 mm, stereo jack with signal and bias connected to tip, electret microphone compatible (4 VDC bias supply with 2.7k ohm series resistor)

Microphone gain adjust:

Rotary potentiometer

Microphone channel switch:

selects microphone input to Ch1 or Ch2

Audio indicators:

Yellow LED blinks at nominal audio level. One per channel

Indicators On/Off:

2-position switch turns on/off indicator lights

“to slave” Output/Input:

(2) 8p8c RJ45 connectors output 48VDC 0.4A power, baseband RF and a bi-directional RS-485 bus for control and status communications

Slave Status Indicators
(on “to slave” jacks):

Green: Power/Unit Status

Yellow: Transmit/Cable Status

Signal-to-Noise Ratio:

70 dB, (line input)

Frequency Response:

95Hz to 17.6kHz, -3dB re 1kHz (line inputs)

125Hz to 17.0KHz, -3dB re 1kHz (microphone input)

Total Harmonic Distortion:

<1% (1 kHz, nominal deviation, line or microphone input)

Operating Requirements:

0-50° C (32°-122°F)

Mounting Kit:

Wall or Ceiling mount: BKT 024 Omnidirectional mount

Optional: slave linking bar (MLB 003)

Warranty:

2 Years

Approvals:

CE, C-tick, FCC, Industry Canada, WEEE, RoHS, CB Scheme

Compatible Receivers:

WIR RX22-4, WIR RX18, WIR RX15-2

Dimensions, Weight:

10.0” W (25.4 cm) x 3.1” D (7.9 cm) x 1.5” H (3.8 cm) w/o faceplate or 2.5” H (6.4 cm) w/faceplate, 0.6 lbs (0.3kg)

Color:

Black with silver colored silk screen and silver colored faceplate

Optional: white colored faceplate

Sleep/Power Save Mode:

Shuts off carrier when no audio is present for 3 minutes

Modulation:

FM Wideband, ±50kHz deviation max, 50 μS pre-emphasis

Carrier Frequencies:

2.3MHz (Ch1) and 2.8MHz (Ch2). Default at power on = carriers off. Carriers are automatically enabled upon presence of audio.

Emitter IR Power:

0.7 W

Slave Coverage Area
(minimum, 1-ch mode):

Note: Slave emitter cannot be used without a master transmitter, but if the slave emitter is aimed so that its coverage area does not overlap that of the master, on its own it will provide:

5,000 sq. ft in single-channel mode with the RX22-4 receiver (464 sq. m)

3,000 sq. ft in single-channel mode with the RX15-2 receiver (279 sq. m)

2,000 sq. ft in single-channel mode with the RX18 receiver (186 sq. m)

Master + Slave Coverage Area (minimum, 1-ch mode)

If slave transmitters are aimed to maximize coverage area (so that their coverage areas minimally overlap that of the master):

10,000 sq. ft in single channel mode with the RX22-4, a master and (1) slave transmitter (929 sq. m)

15,000 sq. ft in single channel mode with the RX22-4, a master and (2) slave transmitters (1,393 sq. m)

Indicators On/Off:

2-position switch turns on/off indicator lights

Signal-to-Noise Ratio:

70 dB, (line input)

Frequency Response:

95Hz to 17.6kHz, -3dB re 1kHz (line input)

125Hz to 17.0kHz, -3dB re 1kHz (microphone input)

Total Harmonic Distortion:

<1% (1 kHz, nominal deviation, line or microphone input)

From Master Input

8p8c RJ45 connector input provides 48VDC 0.4A power, baseband RF, and a bi-directional RS-485 bus for control and status communications.

Slave Extension Cable:

CAT-5e (or better) cable, maximum 100’ length, with RJ-45 8P8C male connector on each end, TIA568B

Slave Status Indicators
(on “to slave” jacks):

Green: Power/Unit Status

Yellow: Transmit/Cable Status

Operating Requirements:

0-50° C (32°-122°F)

Mounting Kit:

Wall or Ceiling mount: BKT 024 Omnidirectional mount

Optional: slave linking bar (MLB 003)

Warranty:

2 Years

Approvals:

CE, C-tick, FCC, Industry Canada, WEEE, RoHS, CB Scheme

Compatible Receivers:

WIR RX22-4, WIR RX18, WIR RX15-2