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Rolls RS81B

Quartz PLL Synthesized AM/FM Tuner

The Rolls RS81B is a Phase Lock Loop digital AM/FM Tuner designed and built for professional applications.

SKU: 101096


Rolls RS81B Quartz PLL Synthesized AM/FM Tuner

Description: The Rolls RS81B is a state-of-the-art Phase Lock Loop digital AM/FM Tuner designed to meet the requirements of professional environments. Whether utilized in remote radio station trucks, repeaters, school installations, churches, nightclubs, or restaurants, this compact single rack space tuner guarantees exceptional performance.

Its precision engineering ensures a flawless and dependable tuning experience, and the space-efficient design optimizes rack space effectively. The RS81B is versatile, making it the ideal choice for various applications, offering crystal-clear reception and precise tuning capabilities.

Equipped with a CR2032 lithium battery, the RS81B ensures uninterrupted operation, even in remote setups or during power outages.

Explore the pinnacle of audio technology with the RS81B – the ultimate solution for professional AM/FM tuning needs.


  • Stores up to 30 FM and AM stations.
  • RDS (Radio Data System) Display.
  • Preserves presets during power-off.
  • Large LCD digital display.
  • Auto Search function.
  • Standard 1-space EIA rack chassis.
  • 3.5mm Headphone output, XLR outputs.
  • Signal strength LED meter indicator.
  • Remote control included with a 225mAh CR2032 lithium battery.

Specifications: FM SECTION:

  • Tuning Range: 87.5-108MHz
  • 3 dB Limiting: 12dB
  • Image Rejection: 53dB
  • Usable Sensitivity Mono IHF: 9dB
  • Selectivity: (-70KHz : +90KHz)
  • S/N Ratio at 1 mV Mono: 52dB
  • Stereo: 50dB
  • THD at 1 mV 40 kHz deviation: 0.18%
  • Stereo Separation: 28dB
  • Auto Scan Sensitivity: 23dB
  • AM Suppression Mod: 52dB
  • Antenna Input Impedance: 75 Ohms


  • Tuning Range: 530 – 1710 kHz (10 kHz increments)
  • IF Frequency: 450KHz
  • Usable Sensitivity: 28dB
  • Auto Scan Sensitivity: 41dB
  • S/N Ratio at 5 mV/M: 46dB
  • 6 dB Bandwidth: 7KHz
  • Image Rejection: 42dB
  • A.C.A. +/- 9 kHz: 46dB
  • AGC Action: 43dB
  • THD at 5mV/M: 0.40%
  • Antenna Input Impedance: 300 Ohms


  • Size: 19″ x 1.75″ x 7″
  • Weight: 7.1 lbs. (3.2 kg)