Harman Kardon CD491 - Harman Kardon CD491 Features; 3-Head Configuration; Dolby HX-Professional Headroom Extension System; Dolby B and C Noise Reduction

CcD4:
SPECIFICATIONS
Track Configuration
Cassette Deck
@MECHANICAL SECTION Nominal Limit
Record/Playback Tape Speed
Deviation 4.75cm/sec. 0.3% aie
Drift 4.75cem/sec. 0.2% < 0.5%
Wow and Flutter
0.033% (CCIR) =0.1%
4-track 2 channel Stereo
0.025% (NAB) = 0.038%
Take Up Torque 55gem + 35~ 70gcem
Back Tension 6gem 4.5 ~ 8gem
F.FWD Torque 120gem 90 ~ 150gcem
REW. Torque 110gem 90 ~ 150gem
F.FWD/REW. Time
for C-60 Cassette 72 sec. =85 sec.
Motor Direct Drive motor (Capstan)
2 Flat Torque DC motors
(Reel & Assist)
@AMPLIFIRE SECTION
Bias Frequency 105kHz + 5kHz
Record/Playback Sensitivity
(Input 400Hz) 580mV + 1dB
Signal-to-Noise Ratio at LINE input
(input 1kHz, 100mV)
Dolby NR OFF LN 50dB
CrO2 53dB
Metal 52dB
Dolby NRBtoON LN 59dB
CrOz = =61dB=58dB
Metal 60dB= 58dB
Dolby NRCtoON LN 69dB
CrO2 71dB = 66dB
Metal 70dB=66dB
Nominal Limit
Signal-to-Noise Ratio
at MIC input (Input 1kHz, 1.5mV)
Dolby NR B to ON (LN) 50dB= 46dB
Dolby NR C to ON (LN) 57dB
Channel Separation 43dB = 35dB
Crosstalk. 72dB = 60dB
Record/Playback Distortion
(Input 1kHz) LN 1.3% <1.6%
CrO2 1.0% =3.0%
Metal 1.0% =1.6%
MPX Filter Attenuation
at 15kHz 0.3dB <1dB
at 19kHz 35dB =30dB
Erase Ratio
(Input 80Hz) LN 70dB = 60dB
Metal 65dB=60dB
Input Sensitivity (Input 1kHz)
at MIC input 0.65mV_ —0.2(min) ~ 1.0(max)mV
at LINE input = 33mV =. 25(min) ~ 50(max)mV
Input Impedance (Input 1kHz)
at MIC input 1.3kQ. 1(min) ~ 2(max)kQ
at LINE input = =23kQ2._—-19(min) ~ 30(max)kQ.
Overload at MIC input
(Input 1kHz) 80mV =20mV
DIMENSIONS (WxHxD) 17-7/16"x4-13/16"x13-9/16”
(443 x 123 x 345mm)
@WEIGHT 15 Ibs. 14 oz. (7.2 kg)
POWER SUPPLY
U.S.A, & Canada models = AC120V, 60Hz
General model AC100/120/220/240v,
50/60Hz
POWER CONSUMPTION
U & Canada models 5S5W
General modet 60w
PLAYBACK FREQUENCY RESPONSE
TEST TAPE: TCC-162C, TCC-262C
+608
RECORD/PLAYBACK FREQUENCY RESPONSE
‘TEST TAPE: XL-1, AC-512, AC-711
DOLBY NR: TYPE B ON
308 308
408
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Fig.a Fig.c
RECORD/PLAYBACK FREQUENCY RESPONSE RECORD/PLAYBACK FREQUENCY RESPONSE
TEST TAPE: XL-1, AC-512, AC-711 TEST TAPE: XL-1, AC-512, AC-711
DOLBY
NR:
OFF
DOLBY
NR:
TYPE
CON
+30B 4348 +408 +408
oO
0
o
248
308
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sae
308
aHe are ns aate wave ‘20Hz 63H ‘315H2 kHz 16kHz
Fig.b Fig. d
Specifications and components subject to change without notice.
Overall performance will be maintained or improved.
This specification is the target of servicing. But, there is a case
that the specification is not applicable to the measurement
condition and instrument.