LECTROSONICS IFBR1B – IFB
Lectrosonics belt pack IFB receiver, incl. wire belt clip and LB-50 battery
€ 930.00 Excl. VAT
The Lectrosonics IFBR1B is a ultra-compact, high-performance UHF IFB (Interruptible Foldback) receiver designed for talent monitoring, director/producer cueing, and crew communication on set. Significantly smaller and lighter than its predecessor (the classic IFBR1a), the IFBR1B delivers pristine, crystal-clear audio with intuitive controls and rock-solid RF stability.
Built with a durable, lightweight aluminum housing, the IFBR1B features an easy-to-read backlit LCD screen, flexible frequency tuning across wideband blocks, and preset storage for quick channel switching. Powered by a rechargeable LB-50 Li-ion battery, it provides hours of reliable operation in film, television, broadcast, and live event environments.
| Category | Specification | Detail |
|
RF & Wireless
|
Frequency Selection Steps |
 25 kHz or 100 kHz (selectable) | VHF: 125 kHz
|
| Sensitivity | Â 1 uv (20 dB SINAD) | |
| Squelch Quieting | Â 90 dB | |
| AM Rejection | Â 50 dB, 10 uV to 100 mV | |
| Modulation Acceptance | Â +/-20 kHz | |
| Spurious Rejection | Â Greater than 70 dB | |
| Third Order Intercept | Â 0 dBm | |
| Antenna | Â Headphone cable | |
|
Audio Performance
|
Signal/Noise Ratio | Â 95 dB A-weighted |
| Frequency Response | Â 100 Hz to 10 kHz (+/-1 dB) | |
|
Audio Outputs
|
Audio Output | Â 1V RMS into 50 Ohms minimum |
| Min. Headphone Impedance | Â 16.0 Ohms | |
|
Interfaces & Controls
|
Programmable Memory |
 10 frequencies can be stored as presets
|
| Top Panel Controls |
 Single knob controls audio output level and power on
|
|
| Side Panel Controls |
 Membrane switches with LCD interface for frequency selection and  preset function
|
|
| Indicators |
 Multi-color LED indicator for power on and battery status
|
|
|
Power
|
Battery | Â LB-50 Li-ion 3.6 V 1000 mAH |
| Battery Life |
 8 hours per charge with LB-50 Li-ion battery
|
|
| Current Consumption | Â 120 mA | |
|
Physical
|
Dimensions | Â 71.1 x 70.0 x 20.3 mm |
| Environmental |
 Operating temperature range: -20 to 45 degrees C
|
| Frequency Band | Block A1 – 470.100 to 537.575 MHz (ch 21 to 29), Block B1 – 537.600 to 614.375 MHz (ch 29 to 39), Block C1 – 614.400 to 691.175 MHz (ch 39 to 48), Block VHF – 174.100 to 215.750 MHz (ch 5 to 10) |
|---|
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