The Onkyo R-811 RDS is a stereo receiver that was manufactured between 1994 and 1999. It features a compact design, measuring 275 mm in width, 115 mm in height, and 331.5 mm in depth, with a weight of 8.4 kg. The receiver has a maximum power consumption of 125 W and delivers continuous power of 2x 40W at 8 Ohms and 2x 75W at 4 Ohms with a total harmonic distortion of just 0.08%. The sound quality is impressive, boasting an attenuation factor of 60 at 8 Ohms, a frequency response of 20 - 30,000 Hz with a tolerance of +/- 1%, and a signal-to-noise ratio of 80 dB for the phono input and 100 dB for CD and tape. Tone control functions allow adjustments of bass and treble by +/- 10 dB at 100 Hz and 10,000 Hz respectively. The receiver supports FM and MW tuner functions, covering FM frequencies from 87.5 to 108.0 MHz and MW frequencies from 522 to 1611 kHz. It features a signal-to-noise ratio of 73 dB for mono and 67 dB for stereo, with a channel separation of 45 dB. Additionally, it has RDS capability and station memory for up to 40 stations. The R-811 RDS supports various audio inputs and outputs, including tape outs, line, phono, and CD connections, as well as loudspeaker connections. Bass boost, subsonic filters, and a mute function enhance its versatility. The receiver is recognized for its robust performance and reliable operation, making it a fitting choice for audio enthusiasts during its production years.
