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LC7

™

Six Channel Line Output Converter With Auxiliary Input

For interfacing with factory installed audio systems

reetings from the rainforests of the Pacic Northwest. We would

like to congratulate you on your purchase of the LC7, a six-chan-

nel, high-performance, line-output converter with an auxiliary input. This

nifty product will accept two, four, or six channels of speaker-level signal

from a factory-installed amplier or source unit and convert it to a high-

quality, low-noise pre-amp signal. This makes the LC7 an ideal OEM

(Original Equipment Manufacturer) interface component as it will allow

you to use your factory-installed source unit but give you the ability to

add really good aftermarket amplier(s) and processor(s). The LC7 also

has an extra set of RCA inputs that allow you to interface your iPod, MP3

player, satellite radio tuner or other audio source. Turntables are not rec-

ommended. Whether this is your rst product from the rainforest dwellers

of AudioControl, or you are already a rm believer, you will denitely

enjoy how great the LC7 can make your performance system sound.

Now before you start salivating just thinking about the benets and

all of the nifty applications for your LC7, take a few minutes to sit back,

grab a beverage of your choice, and read through this manual. It contains

lots of useful facts and information which will probably answer any

questions you may have. If you are one of those folks who “does not like

to read manuals”, then you will be happy to know that this manual is

very peppy and has lots of pictures.

Key Features of The LC7

Here are some of the cool features that your LC7 offers:

• Six input and output channels

• Speaker-level inputs – can accept 400-watt signals!

• Auxiliary input for iPod’s, MP3 players, or Satellite radio tuners

• Input level controls for level matching of sources

• Internal channel summing

• GTO™ - signal-sensing inputs

• Output level controls

• 12 volt trigger output

• Subwoofer level and source selection control

• Biodegradable cardboard box

making good sound better

Summary of content (16 pages)

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LC7™ Six Channel Line Output Converter With Auxiliary Input For interfacing with factory installed audio systems G reetings from the rainforests of the Pacific Northwest. We would like to congratulate you on your purchase of the LC7, a six-channel, high-performance, line-output converter with an auxiliary input. This nifty product will accept two, four, or six channels of speaker-level signal from a factory-installed amplifier or source unit and convert it to a highquality, low-noise pre-amp signal.
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Features and Highlights Speaker-Level Inputs If you are like many people who enjoy the look and features of your factory-installed source unit but feel your system overall is lacking power and bass, we have good news. The LC7 has high-impedance speaker-level inputs that allow it to accept amplified signals from all known factory-installed source units (even Bose) and output a high-quality pre-amp signal via standard RCA connectors.
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12-Volt Output Trigger Since you will be using an external amplifier(s) and processor in your system, you will need the ability to “trigger” or turn-on these devices (a romantic dinner won’t quite work here). Your LC7 has a high-current 12-volt output (labeled Remote Out) that will provide a trigger to these remote devices, when the LC7 is powered up. Please note that this output is not to be used as the main power for these devices.
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warranty. Should you choose to install it yourself we will still give you one-year parts and labor warranty. To activate your warranty, you need to FILL OUT AND SEND IN YOUR WARRANTY CARD! We also recommend that you save your invoice or sales slip as proof of installation and ownership. Not only is it necessary for warranty purposes, but should your LC7 “walk away” one day while your car is parked at your local latte’ stand, you will find insurance companies very unforgiving without proof of purchase.
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Figure 1: Basic LC7 System If you need to know more, then read on. Heck, if you don’t need to know more, still read on. If you end up calling us for help, the first question we will inevitably ask you is, “Did you read the manual?” Needless to say, we have heard some clever answers like “What manual?” or “I don’t think it was in the box”. However rather than deny the inevitable, most of the answers to your questions are in this manual! A Guided Tour of the LC7 1.
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µ ²³ ´ ¬ ② Figure 2: LC7 Top View ± °¯® 4. +12 Volt: Connect to a good source of power (the battery comes to mind again) 5. Remote In: Allows your LC7 to be turned on remotely with a 12-volt signal. NOTE: If you are using the GTO signal sense on your speaker level inputs, you will probably not need to connect this input. 6. Remote Out: Outputs 12 volts when the LC7 is powered up so you can turn on external devices like signal processors and external amplifiers. DO NOT USE FOR SYSTEM POWER!! 7.
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10. Pre-Amp Outputs: These RCA connectors should be connected to the next component after the LC7, such as a signal processor, crossover or amplifier. Do not connect any speakers directly to your LC7. (Definitely don’t connect to any home appliances, like your microwave.) 11. Level Controls: These knobs allow you to adjust the signal level from your source unit to match that of your aftermarket amplifiers.
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LC7 Block Diagram Installing Your LC7 By this time we are sure that you are chomping at the bit to install your LC7. Up to this point, everything you have read has served to educate you on the operations of LC7. Therefore if you are still with us we recommend you read the following sections very carefully. Placement & Mounting of the LC7 Your LC7 can be physically installed in numerous locations like behind your dashboard, under a seat, or even in the trunk.
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Ground Connection: Use the same gauge wire as you did for the positive connector and run it from the “Ground” connector on your LC7 to the negative terminal of the battery, a ground bus, or a verified ground location. The factory head unit ground is not a good ground! Remote In: Your LC7 is equipped with GTO signal sensing which allows it to turn on when it detects a signal at the Main speaker-level inputs so you may not need to use the “Remote In” feature.
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Figure 6: Six channel system with LC7 and EQS Speaker-Level Inputs The LC7 is designed to accept an amplified, speaker-level signal from a factory source unit or amplifier. You will want to refer to a factory service manual or wiring-harness schematic to determine which wires are the speaker wires for your system.
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Summing The Outputs Under the cover are connection jumpers that allow the Main outputs of the LC7 to receive signals from the inputs of Channel pairs 2 and 3. These jumpers allow you to select which input signals will be summed into the Main output. When one of the jumpers is in the Summed position, the corresponding green indicator light on the front of the LC7 will be lit. The shipped-from-the-factory setting is in the Separate position.
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Output Level Matching If you have ever listened to a friend’s “killer” car audio system and heard lots of hiss, clicks or pops, then you may have experienced an improperly level-matched system. When a performance autosound system is properly level matched, you should get the maximum output from your source unit and amplifiers without any clipping or that annoying hiss! The following steps will help you through the process, although at the end of the day, your ears will be your guides! 1.
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Dash Bracket Installation The dash control mounts with two screws, which attach to the underside of the dashboard. Slide under the dash and place the dash control in its mounting position, mark the two mounting holes, drill pilot holes, and secure with two screws. Custom Installation For that custom, finished look, the dash control can be flush mounted directly on the dashboard (or anywhere else). We have provided an extra label to help make this happen.
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Low Output: Depending on the design of your factory-installed system, you may actually be connecting to a pre-amp signal instead of a speaker-level signal. Since the LC7 is a line output converter you may need to turn up the gains on the LC7 or consider adding a pre-amp line driver like the AudioControl Matrix to increase the signal level to your aftermarket amplifiers.
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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, and then take a few days to enjoy your LC7 before sending in the warranty card and comments.
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LC7 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 Pacific Northwest weather although we are working on changing that. Maximum speaker-level input............................... .400 watts @ 4 ohms Maximum auxiliary input .........................................................9.5 Vrms Maximum output level....................................................