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Rolls RS81B Quartz PLL Synthesized AM/FM Tuner

Model: RS81B

Rolls RS81B Quartz PLL Synthesized AM/FM Tuner
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  • (1 review)

About: Rolls RS81B Quartz PLL Synthesized AM/FM Tuner

The Rolls RS81B is a single rack space Phase Lock Loop digital AM/FM Tuner designed and built for professional applications such as remote radio station trucks and repeaters, church and school installations, as well as night clubs and restaurants.


  • Up to 30 FM and AM stations may be stored.
  • RDS ( Radio Data System) Display.
  • Retains presets when power is off.
  • Large LCD digital display.
  • Auto Search function.
  • Standard 1 space EIA rack chassis.
  • 3.5mm Headphone output, XLR outputs.
  • Signal strenth LED meter indicator.
  • Remote included.


  • 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 increm.)
  • 522 - 1611 kHz (9 kHz increm.)
  • 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)

UPC: 675889008111

Reviews: Rolls RS81B Quartz PLL Synthesized AM/FM Tuner

Roger C. - 10/08/2015

Very good quality sound
Nice model

Hard to clean
Finishing not perfect
High power consumption

I received this model one month ago, it works very well but... It undergone a check for electrical compliance here in Canada, a check done by QPS Evalution Services company any and to do so, they ripped off a corner of the plastic wrapping bag of the tuner with the result that it did not seemed brand new. Also, the finish quality is not perfect ( little real horizontal scratch on the front plate though the paint did not come off, making it acceptable but disappointing ). More, the textured finish of the paint is very hard to clean and any touch of a cloth gives it the appearance of being scratched. A tip here, use a wet black cloth and another dry black one to clean it; it works well.I know that anyway in a studio rack this will not be much of a problem and I will keep it but if Rolls does not improve both their products and the way they are shipped, I will think it twice before buying again from them.

Another little point but to be mentioned, the power consumption is high: 45 watts. This is of course not so important for people in pro audio business but Rolls could have done better on this.

Those points behind, the sound quality is astonishingly good, even better than the Yamaha one I have in my Hi-Fi system! very high audio definition, clean reception and for that reason, I will yes recommend this tuner to other potential buyers.

Bottom Line:
Yes, I would recommend this to a friend

Warranty: Rolls RS81B Quartz PLL Synthesized AM/FM Tuner Warranty:

30 Days

Manufacturer's Warranty:

Rolls Accessories
Limited 1-year warranty parts and labor.

Rolls Rack Units: (Mixers, Amplifiers, Processors)
Limited 1-year warranty parts and labor.

Rolls Signal Sources
90 Days warranty parts and labor.

RFX Units
Limited 3-year warranty parts and labor.

Limited 1-year warranty parts and labor.