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- JBL
- Car Amplifier
- MS-A1004
- User Manual
JBL MS-A1004 User Manual
Summary of MS-A1004
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User guide ms-a1004 digital signal processing amplifier.
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2 12 2 x 20 a + - 1 x 40a 3 1 1 2 3 5 6 7 8 9 9 10 11 11 12 12 4 x 30 a 30 a 2 x 30a + - 1 x 60a 3 5 9 11 12 1 2 3 4 6 7 8 9 10 11 12.
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3 www.Jbl.Com ms-a1004 digital signal processing amplifier please read this before you begin! Jbl ® ms series amplifiers include many features not found on conventional car audio amplifiers. Also, the setup procedure for ms series amplifiers is different from that of conventional car audio amplifier...
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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...
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5 www.Jbl.Com what is the best procedure for choosing a crossover frequency and slope (see figures 3a and 3b)? A crossover is a pair of filters that divide the audio signal into low frequencies (bass) and high frequencies (treble) so that only the appropriate signals are sent to speakers that are de...
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6 the bass-boost filter in the ms series amplifiers is a shelf filter that boosts or cuts bass below 60hz, but never above 160hz. The range of adjustment is +/–10db. Additionally, the bass boost or cut is sent to all the amplifiers with which the control is paired. The bass control works with the cr...
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7 www.Jbl.Com e ng lis h ms-a1004 connections power inputs 1. +12v power input connect the unit to the vehicle battery using a minimum size of 8 awg (8mm²) wire with a 60a fuse placed within 18 inches (45.7cm) of the positive battery terminal. Be sure to use an insulation grommet at every location w...
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8 input-level settings input setup mode active input sensitivity too high input sensitivity correct input sensitivity too low input channel mixer input mixer indicates which signal inputs are selected to feed the channel pair’s outputs high-pass filter slope frequency pairing confirmation bass-level...
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9 www.Jbl.Com e ng lis h ms-a1004 user controls 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. The adjustment selector indicator will light. Use the ccw and cw buttons to ...
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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 of...
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11 www.Jbl.Com e ng lis h how to set a band-pass filter band-pass example to build a proper band-pass filter, the low-pass frequency must be greater than the high-pass frequency. The ms-a1004 will not allow you to set the low-pass filter frequency to a lower value than the high-pass filter frequency...
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12 example of filter and input settings for this configuration inputs on all four channels system diagrams inputs on channels 1 and 3.
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13 www.Jbl.Com e ng lis h system diagrams example of filter and input settings for this configuration inputs on channels 1 and 2 example of filter and input settings for this configuration inputs on channels 1, 2 and 3.
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14 e ng lis h specifications specification power output cea ® 2006 bridged mode signal-to-noise ratio frequency response maximum input sensitivity maximum input voltage dimensions (l x w x h) weight beauty carton dimensions gross weight (with beauty carton) 100w rms x 4 channels @ 4 ohms 100 w rms x...