Kenwood KX-31 cassette deck

 

Kenwood KX-31, the single Stereo Cassette Deck, and features:

Dolby B noise reduction system

Tape selector (Normal, CrO₂, Metal)

7-LED peak level meters (-20 dB to +6 dB)

Full auto shut off mechanism in all modes

Timer stand by mechanism

Three digit tape counter

Two microphone jacks and headphone jack

 

Specifications

Type:  Stereo cassette deck with Dolby B NR system

Track System:  4-track, 2-channel stereo/mono, rec/pb

Erasing System:  AC System

Recording System:  AC bias system (bias frequency: 105 kHz)

Tape Speed:  4.76 cm/s (1-7/8 ips)

Heads:

1 x Hard permalloy with sendust guard record/playback,

1 x Double gap ferrite head, erase

Motor:  electronically controlled DC single motor

Fast Winding Time:  aprox. 95 sec. (C-60 tape)

Tape Type:  Normal, CrO2, Metal

Total Harmonic Distortion:  less than 1,0% (at 1 kHz , 0 VU Normal tape)

Frequency Response:

Normal Tape :  20 Hz to 16,000 Hz (30 Hz - 15,000 Hz ±3 dB)

CrO₂ Tape :  20 Hz to 17,000 Hz (30 Hz - 16,000 ±3 dB)

Metal Tape :  20 Hz to 17,000 Hz (30 Hz - 16,000 Hz ±3 dB)

Signal to Noise Ratio:

Normal Tape  (Dolby ON /OFF) :  67 dB / 57 dB

CrO₂ Tape (Dolby ON / OFF) :  67 dB / 57 dB

Metal Tape (Dolby ON /OFF) :  67 dB /57 dB

Wow and Flutter:  0.045% (WRMS)

Input Sensitivity/Impedance

Line  x 2 :  77,5 mv/50 k Ω

Microphones x 2 :  0,7 mv/3,3 k Ω

Output Level/Load Impedance

Line x 2 :  270 mv/50 k Ω

Headphones x 1 :  50 mv/8 Ω

Power Requirements:  AC 120, 220 - 240 V switchable 50/60 hz

Power Consumption:  15 watts

Dimensions (W x H x D):  440 x 117 x 232 mm (17-5/16" x 4-39/64" x 9-1/8")

Weight:  4 kg (8,8 lbs)