Magnetofon kasetowy DENON DR-171 2-Head Dolby B C Made in Japan!!!

Denon DR-171

Stereo Cassette Deck (1986)

Specifications

Type: 2-head, single compact cassette deck

Track System: 4-track, 2-channel stereo

Tape Speed: 4.8 cm/s

Heads: 1 x record/playback, 1 x erase

Tape Type: type I, CrO2, Metal

Noise Reduction: B, C

Frequency Response: 20Hz to 18kHz  (Metal tape)

Signal to Noise Ratio: 74dB  (dolby C)

Wow and Flutter: 0.05%

Input: 60mV (line), 0.25mV (mic)

Output: 0.775V (line)

Dimensions: 434 x 115 x 283mm

Weight: 4.6kg

Year: 1986

from Radiomuseum.org

Model: Stereo Cassette Tape Deck DR-171 - Denon Marke / brand

Material Metal case

Shape Book-shelf unit.

Dimensions (WHD) 434 x 115 x 283 mm / 17.1 x 4.5 x 11.1 inch

Notes

A stereo cassette deck with Dolby B and C. Fitted Rec/Play connection leads with RCA connectors. Two input jacks for microphone, output jack for headphones. Silver or black cabinet.

Specification
Heads:                        Recording and playback head (Hard permalloy)                    
                                   Erase head (Double gap ferrite)
Motor:                         DC servo motor
Tape Speed:               4.8 cm/sec
Signal to Noise Ratio: (for T.H.D. 3% level) a metal tape is used
                                   more than 60 dB (Dolby NR switch turned off)
                                   more than 68 dB (Dolby B)
                                   more than 74 dB (Dolby C)
Total Frequency Characteristics:
                                  20-18,000 Hz (-20 dB), 30-17,000 (±3 dB) for Metal Tape
                                  20-17,000 Hz (-20 dB), 30-16,000 (±3 dB) for CrO2 Tape
                                  20-16,000 Hz (-20 dB), 30-15,000 (±3 dB) for Normal Tape        
Channel Separation:  Over 50 dB (1 kHz)
Crosstalk:                   Over 65 dB (1 kHz)
Wow and Flutter:        0.05% wrms.

Input:
 Microphone:              0.25 mV at max. input volume
                                   Unbalanced input impedance: 4.7 k ohm
 Line:                          60 mV at max. input volume
                                   Unbalanced input impedance: 30 k ohm
           
Output:
 Line:                          775 mV at 47 k ohm loading, output volume at Maximum  
 Headphone:              1.2 mW (loading impedance: 8 ohm — 2 k ohm
                                   output volume at Maximum)        

Versions/Power Requirements:
America, Canada         / 120V AC 60 Hz
Hong Kong, Singapore / 120/220/240V AC 50/60 Hz with voltage adjuster
Europe                         / 220 V AC 50 Hz
UK, Australia, NZ          / 220/240 V AC 50 Hz

Stereo-Cassettendeck mit Dolby C; automatische Umschaltung zwischen Mikrofon- und LINE-Eingang. 20 - 18000 Hz (Metal). Aufnahme und Wiedergabe auch mit Schaltuhr möglich.
Gehäuseausführung Silber oder Schwarz.

Net weight (2.2 lb = 1 kg)4.6 kg

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