Kenwood KAC-PS401M Instruction Manual
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Kenwood KAC-PS401M Instruction Manual

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See also: Service Manual
KAC-PS401M
MONO POWER AMPLIFIER
INSTRUCTION MANUAL
© B64-1441-00 (EM)

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Summary of Contents for Kenwood KAC-PS401M

  • Page 1 KAC-PS401M MONO POWER AMPLIFIER INSTRUCTION MANUAL © B64-1441-00 (EM)

  • Page 2: Safety Precautions

    • When extending the ignition, battery, or • If you experience problems during ground cables, make sure to use automotive- installation, consult your Kenwood dealer. grade cables or other cables with a 5mm • If the unit does not seem to be working right, (AWG10) or more to prevent cable consult your Kenwood dealer.
  • Page 3 Installation procedure • Connect the speaker cables to appropriate • After installation, check that the brake speaker connectors separately. Sharing the lamps, winkers, and wipers work properly. negative cable of the speaker or grounding speaker cables to the metal body of the car can cause this unit to fail.
  • Page 4 Controls FUSE(15A 4 ) SPEAKER OUTPUT SERVO II – FEED BACK BATT. – INPUT SENSITIVITY (MIN) (MAX) LO PASS B.R.F. FREQUENCY FREQUENCY LINE IN INFRASONIC BAND P.CON EXT.AMP.CONT. REJECT FREQ (Hz) INFRASONIC BAND REJECT B.M.S. FREQ (Hz) 20 25 OPEN/ B.M.S.

  • Page 5: Operation/Protection

    COOLING FAN COOLING FAN COOLING FAN INDUCTION INDUCTION OPERATION/PROTECTION OPERATION/PROTECTION OPERATION/PROTECTION MONO POWER AMPLIFIER POWER POWER OPEN/CLOSE OPEN/CLOSE B.M.S. B.M.S. FREQUENCY FREQUENCY LOW VOLTAGE LOW VOLTAGE INPUT INPUT OPEN/CLOSE SENSITIVITY (MIN) (MAX) SENSITIVITY (MIN) (MAX) B.M.S. B.M.S. LO PASS B.R.F. LO PASS B.R.F.

  • Page 6: Bass Management System)

    B.M.S. (Bass Management System) B.M.S. OPEN/ B.M.S. CLOSE B.M.S. (REMOTE) B.M.S. FREQUENCY COOLING FAN INDUCTION OPERATION/PROTECTION MONO POWER AMPLIFIER POWER OPEN/CLOSE B.M.S. FREQUENCY LOW VOLTAGE OPERATION/PROTECTION INPUT SENSITIVITY (MIN) (MAX) B.M.S. LO PASS B.R.F. FREQUENCY FREQUENCY OPEN/CLOSE LOW VOLTAGE B.M.S. indicator B.M.S.
  • Page 7 Additionally, up to 3 power amplifiers can be set at the same time. NOTE Kenwood centre units released in 1999 or later having an “EXT.AMP.CONT.” cable operate this unit. Instructions on how to operate the centre unit will be found in the instruction manual supplied with the centre unit.
  • Page 8 Connection RCA cable connection Left input LINE IN P.CON EXT.AMP.CONT. Right input INFRASONIC BAND REJECT B.M.S. FREQ (Hz) OPEN/ B.M.S. 20 25 CLOSE B.M.S. (REMOTE) P . C L I N CENTRE UNIT (Cassette receiver, CD receiver, etc.) RCA cable * RCA cable ground terminal * : Commercially available parts RCA cable ground terminal...

  • Page 9: Speaker Selection

    NOTE An EXT.AMP.CONT. terminal can only be attached if Kenwood centre unit is a model released in 1999 or latter, and has an “EXT.AMP.CONT.” cable. Using the external amp control, up to 3 power amplifiers can be operated simultaneously (although this may not be possible, depending on the type of wiring cable used, and its length).

  • Page 10: Power Cable Connection

    Connection Power cable connection 2WARNING To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery’s positive terminal. Wiring • If a buzzing noise is heard from the speakers when the engine is running, connect a line noise filter (optional) to each of the battery cable.
  • Page 11 Sigma servo feed back The sound reproduced through conventional amplifiers is distorted due to the counterelectromotive force produced in the oscillating system of the speaker. The counterelectromotive force is particularly high with the woofer which requires a large drive mass.The sigma servo connection reduces distortion caused by the counterelectromotive force by including the circuit up to the speaker terminals in the negative feedback loop.

  • Page 12: Adjustment Method

    Connection The acoustic properties of vehicle compartment tend to 0 dB cause oscillation due to resonance or unclearness of sound due to standing waves at certain frequencies. The band reject filter can solve the problems of resonance or unclear sound with minimum influence on the sound quality because it eliminates only the frequencies causing resonance or standing waves.

  • Page 13: Specifications

    Troubleshooting Guide PROBLEM POSSIBLE CAUSE SOLUTION If the slide panel moves of • The system is in DEMO mode. • Cancel DEMO mode by pressing its own accord. the OPEN/CLOSE button. • The slide panel has gone into • Check the B.M.S. and operate remote operation mode.

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