FOUR.
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FOUR.1i tm In-Dash Table of Contents INTRODUCTION Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Congratulations on your purchase of a truly unique Features and Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 and versatile product, the AudioControl FOUR.1i (pronounced Four Point One Eye) in-dash equalizer/line driver. A Guided Tour of the FOUR.1i . . . . . . . . . . . . . . . . . . . . .
® Features of the FOUR.1i: QUICK INSTALLATION INFO • Stereo graphic equalization For those of you who are short on time and brimming • Para-BASS low frequency controls with confidence, or caffeine for that matter, refer to pages 10 and 11 (Figures 6, 7, & 8). As a matter of reference the FOUR.
FOUR.1i tm In-Dash FEATURES AND HIGHLIGHTS Pre-Amp Line Driver: Talk about your ironies. To This section will tell you about all of the nifty features of your FOUR.1i. Knowing these features will help you maximize the performance of your FOUR.1i in-dash equalizer as well as making you the “Big Cheese” with your autosound buddies. Graphic Stereo Equalization: The FOUR.1i turns the dashboard of your car into a mini-mixing board, just like those in a recording studio. The FOUR.
® Master Volume: The Most Important Feature Of All: The FOUR.1i has its own master volume KNOB (no annoying up & down switches for us) to control the signal Reliability. That’s right, your AudioControl FOUR.1i comes with a full 5 year parts and labor warranty when it is in- output to the amplifiers. Raise the volume level on your source units to their maximum and you will never need to stalled by an authorized United States AudioControl dealer.
FOUR.1i tm In-Dash A GUIDED TOUR OF THE FOUR.1i 4. Volume: Because the FOUR.1i is a pre-amp unit, it 1. Graphic Equalization Bands: Four stereo controls centered at 125Hz, 500Hz, 2KHz, and 8KHz with 12dB of cut or boost. These controls should be used to tweak your system, depending upon your mood. 2. Para-BASS Controls: Two simple controls allow for killer bass tweaking. The sweep knob selects the center frequency, between 40 and 80Hz.
® 6. Power Connections: This nifty connector is a godsend to anyone who has tried to wire up their gear with their head crammed under the dash. You can wire up the power, 6 10 11 ground, remote turn-on, and illumination from the convenience of the driver’s seat and then casually plug it in the back of your FOUR.1i. 7. Input Jacks: The FOUR.1i has two sets of inputs, MAIN and AUX. The main inputs should get their 7 signals from the main source unit/head unit.
FOUR.1i tm In-Dash 9. Input Gain Control: These potentiometers are 13. Ground Isolation Selector: This feature allows used to increase the amount of signal voltage to your power amplifiers. With these controls you can provide up to 13 you to change the power supply ground for different systems. When the FOUR.1i is shipped from the factory, the volts (peak) to your amplifier’s inputs.
® INSTALLING YOUR FOUR.1i IN-DASH EQUALIZER Having absorbed everything in the manual up to this point, you probably know we endorse having a professional install your FOUR.1i. Above and beyond having all of the appropriate technical know-how and experience, they have lots of cool tools. If you are still with us and are feeling confident, then read on. . . A. Placement and Mounting the FOUR.1i A. In-Dash Equalizer Figure 4: FOUR.
FOUR.1i tm In-Dash B. FOUR.1i Power Wiring Ground Connection: Use the same gauge wire as • ENLIGHTENING INFO • Disconnect the negative terminal of your car’s battery before working on any electrical connections. Failure to do so could lead to a dramatic spark in your life. Remote Turn-On: Connect a 22 to 18 gauge wire from the head unit’s remote turn-on to the “Remote” connector on the FOUR.1i.
® Single Source & Single Amplifier Figure 6: FOUR.1i with one source unit and single amplifier 10 Single Source & Dual Amplifiers Figure 7: FOUR.
FOUR.1i tm In-Dash Two Sources & Two Amplifiers Figure 8: FOUR.1i with 2 source units & 2 amplifiers D. Level Matching Many manufacturers claim that their source units produce signal voltages in the area of 2 to 4 volts. However, what they neglect to mention is that you only achieve these incredible voltage levels when the volume is turned all the way up. Try listening to that all of the time. By following the level matching steps for the FOUR.
® 3. Using a small screwdriver, adjust the “Input Gain” control on the top of the FOUR.1i until the yellow “Overload” LED starts to flicker with the music. use the FOUR.1i to make your audio system sound enjoyable. At the same time don’t attempt to re-invent the laws of system and attach the output RCA’s from the Figure 9: Input Gain Controls 5. Turn down the gain control (counter clockwise) on your amplifiers to the least sensitive setting.
FOUR.1i tm In-Dash 2kHz: Our ears are most sensitive to the octave centered at 2 KHz. Reducing it can prevent ear fatigue while boosting it will add immediacy, presence and “attack”. TROUBLESHOOTING Problem 1. Check “Power” and remote turn on for proper voltage. (Is power light on?) 2. Center the fader control. 3. Turn up “Input Gain” control. 4. Check ground connections. 5. Is the “Aux” button in the wrong position? Hiss 1. Turn down amp gains 2. Turn down amp gains 3. Turn down amp gains 4.
® If You Like The FOUR.1i, You’ll Love... The Concert Series The 3XS is a 4 channel, 2 EQLTM is our award winning dual bandwidth, trunk way crossover with breathtakingly steep 24dB per mount equalizer with speaker level imputs!. to you that octave slopes. If performance is important to you, means easy inexpensive upgrade. Thirteen 1/2 octave than you will appreciate the 3XS. and octave spaced bands help tame even the most wicked acoustical environment, your car.
FOUR.1i tm In-Dash And now a word from the legal department . . . Here are the conditions that make this warranty condi- The WARRANTY tional: 1. You have to fill out the warranty card and send it to us People are scared of warranties. Lots of fine print, lots of non-cooperation, months of waiting around. . . within 15 days after you purchased your FOUR.1i. 2. You must keep your sales slip or receipt so you have Well don’t be scared of this warranty.
® all we mean by it; unwarranted abuse is: (a) Physical damage (our mobile products are not meant to be used as jack stands for your car): (b) Improper connections. We have done the best we can to protect the inputs. However, 120 volts into the input jacks can fry the innards of the poor beasty: (c) Sadistic things. This is the best mobile product we know how to manufacture, but if you use it for the front bumper of your Baja bug and get it full of water and dirt, things will go wrong.
FOUR.1i tm In-Dash FOUR.1i SPECIFICATIONS All specifications are measured at 14.4 VDC (standard automotive voltage) As technology advances, AudioControl reserves the right to continuously change our specifications, like our weather. Frequency response . . . . . . . . . . . . . . . . . . . . . . . . 10Hz-100kHz;±1dB Output ground isolation jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes Equalization Cut/Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
® making good stereo sound better® 22410 70th Avenue West Mountlake Terrace, WA 98043 USA 425-775-8461 • Fax 425-778-3166 © 1998, AudioControl, a division of Electronic Engineering and Manufacturing, Inc.
