USER MANUAL

ManualsBrandsAudio Control ManualsMedia ConverterLC7i

Six Channel Line Output Converter with AccuBASS™ for

interfacing with factory installed audio systems

The LC7i transforms your under-performing factory audio sys-

tem into a supreme audio machine! It is a compact, six-channel,

high-performance active line output converter with AudioControl’s

patent-pending AccuBASS™ compensation that corrects the bass

roll-off present in many factory equipped audio systems. The LC7i

accepts up to six channels of speaker-level signal from factory-

installed ampliers or a source unit and converts it to a high-

quality, after market low-noise, pre-amp level signal that can be

fed to ampliers and speakers. You may also add an optional

ACR-1, remote level control, so you can adjust the output of the

bass channels from the convenience of the driver’s seat. With the

LC7i you have a high performance audio system while maintaining

the features, functions and

aesthetics of your factory

source unit!

This manual covers the

features, functions, instal-

lation and usage of the

LC7i so please take a few

moments to read through

it. If it’s easier, read 140

characters at a time, just

make sure to remember

where you stopped reading last time! We’ve

tried to cover all possible situations and have included lots of facts

and useful information. For more information visit our web site at

http://www.audiocontrol.com

Making Good Sound Great

page 1

Summary of content (16 pages)

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Six Channel Line Output Converter with AccuBASS™ for interfacing with factory installed audio systems The LC7i transforms your under-performing factory audio system into a supreme audio machine! It is a compact, six-channel, high-performance active line output converter with AudioControl’s patent-pending AccuBASS™ compensation that corrects the bass roll-off present in many factory equipped audio systems.
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Key features of the LC7i • AccuBASS™ bass compensation corrects the bass roll-off in factory • systems • Speaker-level inputs can accept 400 watts per channel • Six input and output channels! • Internal channel summing eliminates factory crossover settings • AutoMode turns 2 inputs into 3 outputs • GTO™ - signal sensing turns the LC7i on automatically • 12 volt 1 amp remote output to power up processors and amplifiers • Level matching controls • Compact chassis for easy installation • Recyclable cardboar
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and/or amplifier and connect them to the speaker-level inputs on your LC7i. In many cases you can find factory speaker leads in the rear of the vehicle or at the factory amplifier. Note: If your source unit has front, rear, and subwoofer speakerlevel outputs, connect them to the three sets of inputs on your LC7i. If the source unit only has front and rear outputs, the AutoMode circuitry in your LC7i automatically routes the Channel 2 input signal to the Channel 3 (subwoofer) input. 3.
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Under the Hood - Internal Jumpers Here are the internal jumpers that allow you to customize the LC7i for your particular installation. 1. Output Summing Jumpers: Many of today’s better factory stereo systems include separately-amplified and crossed-over tweeters, mid-ranges, and subs. If you are going to add your own amps and speakers to the car you will need to combine (or sum) these separate signals into a single full-range signal for the new system. With the LC7i, summing is a snap.
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“Defeat”. In this mode, you will need signal on the Channel 3 inputs to output signals on the Channel 3 output. We ship the LC7i with the jumpers in the “On” position. See the “AutoMode Input” section under “More Highlights” on page 8 for more details. Internal Jumper Configuration A Guided Tour of LC7i Speaker-level Inputs: The LC7i has six speaker-level inputs. These inputs get their signals from the speaker-level outputs of your factory-installed source unit or amplifier.
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AccuBASS™ Controls: The threshold and level controls let you determine when the AccuBASS™ circuit activates and the level of bass correction desired. More info on page 8. Ground: Connect to a good, verified chassis ground. Warning: factory radio ground wires already have multiple devices connected to them and are not recommended. +12V Power: Connect to a good source of 12-volt power. Make sure you install the proper size fuse on the power wire near the power source (i.e.
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Remote In: In some installations, you may not want to use the GTO™ to turn on your system. For these cases the LC7i can be turned on remotely with a +12-volt trigger. When you use the +12-volt remote in, you should set the internal GTO™ jumper (see “Under the Hood” on page 6) to “Defeat”. This will prevent the car’s network system from turning the system on unexpectedly.
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Awesome Information AccuBASS™ Processing Factory installed amplifiers and speakers are NOT designed to reproduce bass frequencies at high volume levels. These factory systems actually remove the bass when you turn up the volume! AudioControl developed the patent pending AccuBASS™ circuit to restore the bass that the factory takes away. After a quick and easy one-time setting, the AccuBASS™ circuit adds the bass just as the factory system rolls off.
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More Highlights Summed Outputs The LC7i has the capability to combine together multiple (2, 4, or 6) input signals from the factory source unit into 2 channels. In some vehicles there is an actively crossed-over tweeter, midrange, and woofer all in the front of the vehicle. The LC7i lets you take all of those signals and sum them together to get a high-quality, full-range, pre-amp signal. Simply move the summing jumper located under the cover for the desired channel into the “Sum” position.
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Custom Installation For that custom, finished look, the dash control can be flush mounted directly on the dashboard (or anywhere else). Disassemble the dash control from the mounting bracket. Start by pushing the LED from its holder followed by removing the circuit board and rotary control from the bracket. Drill a 9/32” hole in the dashboard for the control along with a 1/8” hole for the lock tab and a 13/64” hole for the LED holder.
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Basic Factory Upgrade System If the factory radio doesn’t have a bass output, the LC7i will provide it via automode.
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Block Diagram of the LC7i Feeling lost? Here’s an internal “roadmap” to help you out. This simplified block diagram is a map of the paths the signals take through the LC7i. With this map you can follow each input through the processor. If you have an issue with the hook-up of your LC7i and need to call for technical assistance, please have this diagram available. We can help you trace the problem to get your system up and running.
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The WARRANTY People are scared of warranties. Lots of fine print, months of waiting around. Well, fear no more, this warranty is designed to make you rave about us to your friends. It’s a warranty that looks out for you and helps you resist the temptation to have your friend, “who’s good with electronics”, try to repair your AudioControl product. So go ahead, read this warranty, then take a few days to enjoy your new LC7i before going on-line to register your unit at www.audiocontrolregistration.com.
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we know how to build, but if you mount it to the front bumper of your car, something will go wrong. If an authorized United States AudioControl dealer installs the LC7i, the warranty is five years. Assuming you conform to 1 through 5, and it really isn’t all that hard to do, we get the option of fixing your old unit or replacing it with a new one. LEGALESE SECTION This is the only warranty given by AudioControl. This warranty gives you specific legal rights that vary from state to state.
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LC7i SPECIFICATIONS All specifications are measured at 14.4 VDC (standard automotive voltage). As technology advances, AudioControl reserves the right to change our specifications, like our Pacific Northwest weather although we are working on it. Maximum speaker-level input.... 400 watts per channel at 4 ohms Maximum output level...................................................... 8.5Vrms Output gain .......................................................................+/-15 dB Frequency response........
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® Making Good Sound Great 22410 70th Avenue West Seattle, WA 98043 USA Phone 425-775-8461 • Fax 425-778-3166 www.audiocontrol.