JBL MS-A1004 User Manual

Digital signal processing amplifier
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Ms-A1004
Digital signal processing amplifier
User GUide

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Summary of Contents for JBL MS-A1004

  • Page 1 Ms-A1004 Digital signal processing amplifier User GUide...
  • Page 2 30 A 30 A 2 x 30A 1 x 60A 10 11 2 x 20 A 10 11...
  • Page 3: Fcc Regulations

    MS Series amplifiers is different from that of conventional car audio amplifiers. The following overview of features and functions will help you plan a great system and make the best use of the MS-A1004’s innovative features. About the digital signal processing (DSP) included in MS Series amplifiers: All of the signal processing in MS Series amplifiers is digital.
  • Page 4 Why are the signal inputs and speaker outputs numbered rather than labeled “left” and “right”? MS Series amplifiers are designed to make integration into any system simple and straightforward. The amplifier includes a digital input-mixer control, which eliminates the need for Y adapters and allows any pair of output channels to be driven by a mono or stereo signal for maximum system-building flexibility.
  • Page 5 (see Figure 5a). Figure 5a. Crossover Frequency Changes With Bass Boost Figure 3b. 6dB/oct. 12dB/oct. 24dB/oct. Figure 4. Subsonic Low-Pass Filter Filter Figure 5b. Crossover Frequency Constant With Bass Boost www.jbl.com...
  • Page 6 THis BeFOre sTArTiNG iNsTALLATiON! 1. JBL MS Series amplifiers include many features not found on conventional car audio amplifiers. The setup procedure for MS Series amplifiers is different from that of conventional car audio amplifiers. Be sure to carefully read and understand these instructions before attempting installation.
  • Page 7: Speaker Outputs

    2. remote Turn-On input (Optional to Connect) No discrete remote-turn-on connection to the MS-A1004 is necessary. If your head unit includes a remote-turn-on lead and you wish to connect it, connect the unit to this terminal.
  • Page 8: Input-Level Settings

    Ms-A1004 disPLAY iCONs input-Level settings input Channel Mixer High-Pass Filter slope Pairing Confirmation Bass-Level Controller Pairing* * The MS-WBC wireless bass controller is an optional accessory. Input Setup Mode Active Input Sensitivity Too High Input Sensitivity Correct Input Sensitivity Too Low...
  • Page 9: User Controls

    Ms-A1004 User CONTrOLs rotary encoder Rotates clockwise (CW) and counterclockwise (CCW). Each detent represents a value increase (CW) or decrease (CCW). Counterclockwise (CCW) Button Move selectable option counterclockwise (CCW) one value. Ms-A1004 seTTiNGs GUide iNiTiAL seTUP Activating the Controls Press both CCW and CW buttons at the same time for less than three seconds and release, to activate the controls.
  • Page 10 To Set the Input Level: 1. Move the switch for the Input Signal Selector to the Hi position (or Hi2, if you are connecting to a factory system with open-circuit protection). 2. Set the bass, treble, balance and fader controls on your head unit to the center (or flat) positions. Set loudness to off.
  • Page 11: Output Levels

    How to Pair the Ms-WBC Wireless Bass Control with the Ms-A1004 The optional MS-WBC wireless bass controller must be paired to the amplifier in order to be used. When the ampli- fier is first turned on, the amplifier is not paired with any controller.
  • Page 12: System Diagrams

    sYsTeM diAGrAMs Example of filter and input settings for Inputs on all four channels this configuration Inputs on channels 1 and 3...
  • Page 13 Example of filter and input settings for this configuration Example of filter and input settings for this configuration Inputs on channels 1 and 2 Inputs on channels 1, 2 and 3 www.jbl.com...
  • Page 14: Specifications

    Beauty carton dimensions Gross weight (with beauty carton) © 2010 Harman International Industries, Incorporated. All rights reserved. JBL is a trademark of Harman International Industries, Incorporated, registered in the United States and/or other countries. CEA is a registered trademark of the Consumer Electronics Association. Features, specifications and appearance are subject to change without notice.

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