Denon DR-M 20

Data

General

• Manufacturer: Denon
• Model: DR-M 20
• Type: Single
• Year of manufacture: 1986
• Made in: Japan
• Color: silver / black
• Remote control: No
• Mains voltage: 220V 50-60Hz
• Power consumption: 19 W
• Dimensions: 434 x 115 x 286 cm
• Weight: 5.6 kg
• Original price: approx. 900 DM

Connections

• Number of inputs: 1
  • Line in: Cinch (RCA)

• Number of outputs: 2

Line out: Cinch (RCA) Headphones, adjustable via output controller

Technical data

• sound heads: 3
• Motors: 3, two for the drive, one as servo ("actuator" for the head carriage, among other things)
• Synchronisation fluctuations: 0,045% WRMS
• Belt types: Normal, Chrome, Metal
• Frequency response: 20-19.000 Khz
  • Metal: 20 - 21,000 Hz
• Distortion factor:
• Signal-to-noise ratio: 73 dB
• Auto-Reverse: No
• Track search: No
• Dolby: B, C

Special Features

• Closed dual capstan drive for clean synchronization
• Rear band control and monitor circuit
• Split Power Supplied Audio Amplifier
• Computer controlled, almost silent servo motor technology
• Non-slip rewind drive,
• Tape tightening after cassette insertion
• Sensor jog keys
• Automatic tape type selection
• Pre-magnetization controller (BIAS tuning)
• 4-digit digital tape counter, numerical
• Illuminated cassette compartment
• Output level control, also headphone output control

Memory button MPX filter switchable

Servicing notes

10x8x2 and 13x8x2 pinch rollers clean contacts on tape selectors

A very good deck

Remarks

• Other models of the same series:
  • DR-M 10
  • DR-M 20
  • DR-M 30 HX

• Somewhat purist features. Only sparse, small feet, as the design should be as flat as possible, plastic back.
• "Little brother" of the DR-M 30 HX, from which it differs in the absence of Dolby HX Pro and a remote sensor.

Pictures

Reports

• No tests in German-language magazines (!)
• Test in Hifi Review, Nov/Dec 1986 (UK)