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820-B The Rotel RA-820 B is a Class A/B integrated amplifier manufactured between 1983 and 1985. It delivers 25W per channel into 8 Ohms with a total harmonic distortion of less than 0.08%.
Mfr Part #:

820-B

Available from 1 distributors
Mfr Name: Centralab Semiconductor (Globe Union)
Centralab Semiconductor (Globe Union)
The Rotel RA-820 B is a Class A/B integrated amplifier manufactured between 1983 and 1985. It delivers 25W per channel into 8 Ohms with a total harmonic distortion of less than 0.08%.
✓ Total Stock: 24 pcs
$ Price Range: $1.20

820-B Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
24 pcs
On Request
24 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

820-B Specifications Quick View

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820-B Description

Short technical summary and product information.

The Rotel RA-820 B is a Class A/B integrated amplifier produced from 1983 to 1985 in Taiwan. It offers a continuous output power of 25W per channel into an 8 Ohm load, with a total harmonic distortion of less than 0.08%.

 

The amplifier features a wide frequency response, with Phono MM inputs responding from 20 Hz to 20 kHz (± 0.3 dB) and high-level inputs covering 10 Hz to 40 kHz (- 3.0 dB; + 1.0 dB). Signal-to-noise ratios are 75 dB for Phono MM and 86 dB for high-level inputs.

 

Connectivity includes inputs for Phono MM, Tuner, CD, and Tape, along with Tape out and a headphone output. It also supports one pair of speaker outputs. The unit has a power consumption of 170W and measures 430 mm x 66 mm x 271 mm, weighing 5.5 kg.

 

This model is part of a series that includes variations like the RA-820, RA-820 A, and RA-820 BX.

820-B Quick Information

Product Type: Integrated Amplifier
Canonical Name: Rotel RA-820 B Integrated Amplifier

820-B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

820-B Estimated Pricing

Qty Low High
1+ $1.20 $1.20

Estimated market price range - modelled values for guidance only, not live distributor offers.

820-B Features

  • Class A/B integrated amplifier design.
  • 25W continuous power output at 8 Ohms.
  • Low total harmonic distortion (<0.08%).
  • Wide frequency response for high-level inputs.
  • Multiple input options including Phono MM.

820-B Applications

  • Ideal for stereo music reproduction.
  • Suitable for driving bookshelf speakers.
  • Phono input for turntable connectivity.
  • Use in vintage audio systems.

820-B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output power of the 820-B?

25W per channel continuous into 8 ohms.

What is the total harmonic distortion?

Less than 0.08%.

What is the frequency response?

10 Hz to 40 kHz (-3 dB) for high-level inputs; 20 Hz to 20 kHz (±0.3 dB) for phono MM.

What inputs does the 820-B have?

Phono MM, Tuner, CD, and Tape inputs.

What are the dimensions and weight?

430 mm x 66 mm x 271 mm, weight 5.5 kg.

What is the power consumption?

170 W.

What is the signal-to-noise ratio?

86 dB for high-level inputs and 75 dB for phono MM.

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