4.7

Out of 2 Ratings

Owner's of the Alpine Car Stereo System cdm-7857 gave it a score of 4.7 out of 5. Here's how the scores stacked up:
  • Reliability

    4.5 out of 5
  • Durability

    4.5 out of 5
  • Maintenance

    5.0 out of 5
  • Performance

    5.0 out of 5
  • Ease of Use

    4.5 out of 5
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13-EN
Specifications
FM TUNER SECTION
Tuning Range 87.7 – 107.9 MHz
Mono Usable Sensitivity 9.3 dBf (0.8 µV/75 ohms)
50 dB Quieting Sensitivity 13.5 dBf (1.3 µV/75 ohms)
Alternate Channel Selectivity 80 dB
Signal-to-Noise Ratio 65 dB
Stereo Separation 35 dB
AM TUNER SECTION
Tuning Range 530 – 1,710 kHz
Sensitivity (IEC Standard) 22.5 µV/27 dB
CD PLAYER SECTION
Frequency Response 5 – 20,000 Hz (±1 dB)
Wow & Flutter (% WRMS) Bleow measurable limits
Total Harmonic Distortion 0.008% (at 1 kHz)
Dynamic Range 95 dB (at 1 kHz)
Signal-to-Noise Ratio 105 dB
Channel Separation 85 dB (at 1 kHz)
GENERAL
Power Requirement 14.4 V DC
(11–16 V allowable)
Maximum Power Output 40 W × 4
Maximum Pre-Output Voltage 2 V/10 k ohms
Bass ±14 dB at 30 Hz
Treble ±14 dB at 10 kHz
Weight 1.5 kg (3 lbs. 5 oz)
CHASSIS SIZE
Width 178 mm (7")
Height 50 mm (2")
Depth 155 mm (6-1/8")
NOSEPIECE SIZE
Width 170 mm (6–3/4")
Height 46 mm (1-13/16")
Depth 18 mm (11/16")
Due to continuous product improvement, specifications and
design are subject to change without notice.
HI TEMP
(CDM-7854 only)
– – – H
ERROR - 01
Indication for CD Changer
Protective circuit is activated due to high temperature.
- The indicator will disappear when the temperature
returns to within operation range.
Malfunction in the CD Changer.
- Consult your Alpine dealer. Press the magazine eject
button and pull out the magazine.
Check the indication. Insert the magazine again.
If the magazine cannot be pulled out, consult your
Alpine dealer.
Magazine ejection not possible.
- Press the magazine eject button. If the magazine does
not eject, consult your Alpine dealer.
No magazine is loaded into the CD Changer.
- Insert a magazine.
No indicated disc.
- Choose another disc.
Misconnection or disconnection of CD Changer.
- Check connection between CD Changer and control
unit.
(CDM-7857 only)
(CDM-7854 only)
E - 01
(CDM-7857 only)
NO MAGZN
(CDM-7857 only)
(CDM-7854 only)
– – – –
(CDM-7854 only)
T – – –NO DISC
(CDM-7857 only)
EEEE
(CDM-7854 only)