DSP-IV AT SERIES Owner’s Manual 1 Before operating the unit, please read this manual throughly and retain it for future reference. Any updates are available on zapco.
Table of Contents The Zapco DSP-IV AT Series ................................................................................................................................... 5 Before you start your installation ....................................................................................................................... 6 Upgrading a Factory Stereo .......................................................................................................................
The Zapco DSP-IV AT Series Congratulations on your purchase of this new Zapco product. It has been designed and built to give you many years of reliable, industry leading performance and true audiophile level sound quality. MISSION STATEMENT Committed to Excellence ZAPCO is dedicated to the pursuit of audio fidelity.
Before you start your installation ZAPCO highly recommends that a fuse or circuit breaker be placed within 18" of the battery. Although you will add a fuse or fuse block near the amplifier it is still a possibility that a pinched power wire between the component fuse and the battery could result in a short, or even a fire.
More words about Power and Ground The second most common cause of under performing amplifiers is insufficient power current or a poor power connection. The most common cause of under performing amplifiers is insufficient ground current or a bad ground connection. 12-volt current: Battery power works only if it travels in a complete circuit from the battery positive terminal to the battery negative terminal. Main power input, of course, is attached to the battery positive terminal.
DSP-Z8 IV AT Panels 1 2 DSP-Z8IV AT 4 CH3 CH5 CH6 7 CH1 CH3 CH5 CH7 CH2 CH4 CH6 CH8 11 2 3 4 5 6 +12V REM OUT GND REM IN 7 8 1. Power-On LED 2. Auto-on switch for OEM integration 3. USB connector for PC control 4. Dash remote port 5. Protection LED 6. Microphone Input for Auto-Tuning 7. Comm Port for HD-BT module 9 10 13 12 CH7 REMOTE CH4 1 8. Microphone Input for Auto-Tuning 9. Dash remote port 10. USB LED 11. USB connector for PC control 12. Power-On LED 13.
Remote Control The Microphone (for Auto Calibration, optional) The M-AT1 is a special microphone for setting up the sound automatically, based on the response characteristics of the speakers and auto detail detection of the car. After detecting all the necessary information, the audio information screen will be transmitted to the computer. 1 2 3 1. Prev button will play the previous (re-play) song when streaming BT music. 2. Next button will play the next song when streaming BT music 3.
2. Inputs: Here you choose the input you will use while tuning. You can choose LINE IN which can be an aftermarket head unit, or a factory head unit using the speaker level input harness. You also have Optical (SPDIF) or Coax (also SPDIF) digital inputs, and a BT (Bluetooth) input if you add the optional HD-BT module for HD AptX Bluetooth streaming. The Graphical User Interface (GUI) The Main Screen The Graphical Interface (GUI) for the DSP-IV AT processors requires no installation.
c. The Phase column lets you adjust the polarity of each channel, so you have all speakers moving the same direction at the same time. See Pag. 22 for more information on Phase. If you have the M-AT1 calibration mic, the autotuning system will check the phase of all the speakers for you. d. Delay adjustments. During tuning, if you need to make changes in the signal delay you can do that here by typing in the numbers in the MS column, or by using the sliders.
Auto Calibration. When used with the optional M-AT1 microphone, the GUI can automatically calibrate the major tuning functions of equalization, signal delay, and phase. Leaving you nothing much to do but sit back and enjoy the music. 5. The Tips area will display messages or reminders i.e. To make sure your crossovers are set before the calibration run (to protect the tweeters). 6. The Start button to begin Auto Calibration.
The File Menu Saving your work is critical. Whenever you have the PC connected to your DSP all the work you are currently doing is at risk of being lost if something should happen to cause a loss of power to the system or to close the GUI prematurely. So, like anything else in a computer, save and save often. Saving and Loading of files and presets is through the FILE menu in the upper left corner of the GUI (Point 1, Pag. 14). Read from Device works the same way.
B. Midrange and Woofer/Mid-Bass: Now mute all but the midrange. These are easier because phase is more obvious at lower frequencies and because you can use more volume. The procedure is the same but now you should use the male vocal. Listen for the vocal location. It should be at a specific location near the center of the window. Change the phase of the right speaker a few times and listen to the difference. Use the combination that puts the vocal in a specific central location.
The Tuning Tools of the GUI 5. EQ: This is the EQ band box. You can which of the 31 EQ bands you will adjust by clicking on any of the green band buttons and using drag-n-drop, but you can also click into the EQ band box and type in a band number or use the up/down arrows of the keyboard to scroll through the bands. You will use the EQ graph and the Function bar above for making the EQ adjustments. Below we lay out the EQ tuning functions. 1 2 3 4 5 6 7 8 9 11 10 6.
What We Want to Achieve You will use the EQ graph and the Function bar above for making the EQ adjustments. Below we lay out the EQ tuning functions. Of course, there is no way to know what the response in any particular car will be. However, we can say what response we want to achieve. The first step is to play pink noise through the system and read the output level of each 1/3 octave band on the RTA. For tuning, you will want to have your system playing a slightly loud volume.
A Bad Response Curve At the bottom line the sound you want from your car will be subject to your tastes. Everyone will like the “Best Response Curve” and everyone will like the “Good Response Curve”. They may not be exactly what some want, but they will sound good and they will be comfortable to listen to. The reason is that there are no peaks in the response. The ear is very sensitive to frequency peaks, and they irritate the listeners ears.
Notes 30 Software/PC requirements: Microsoft Windows (32/64bit): XP, Vista, Windows 7, Windows 8, Windows 10. Continuous exposure to excessive sound pressure levels may cause permanent hearing loss. ZAPCO strongly advises that you use common sense when setting volume levels. Everything written in this manual is for the proper use of the products. Some features or specifications could be modified during production to improve the product performance.
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