ADJUSTING AND TUNING

15

Below you will find information on adjusting the amplifiers gains. Adjusting the gain correctly is essential to proper operation of the amplifier. If the gain is not adjusted properly it can and will lead to damage of the amplifier and connected speakers and will void your MANUFACTURER WARRANTY. The gain on an amplifier is not a volume control. It is a signal level setting that tells the amplifier how strong of a signal is coming from the head unit. Your amplifier has an input sensitivity of 200mV-8V. The minimum setting is 8V and the maximum setting is 200mV. Minimum meaning the head unit or processor has 8V output and the maximum meaning it has a 200mV output.

When using Low-Level (RCA) inputs you MUST know what the pre-out or line-out voltage of your head unit is rated in Volts. This is not the wattage rating. This can be found in the manual of the head unit or by contacting the manufacturer. If you are using a line-driver or another type of processor that adjusts the output voltage of the signal to the amplifier you will need to know what the output is adjusted to. The gain on the amplifier needs to be set proportionately to the pre-out or line-out voltage rating of the head unit or processor.

If the signal strength is 4V then the gain would be adjusted to about 45 - 50%. Below is a list of commonly found voltage ratings and their appropriate gain adjustments. When adjusting the gain you want to start with the bass boost setting on the amp set to minimum and bass adjustments on the head unit or processor are set at 0 or flat. As these other settings for bass adjustments are increased, the gain setting will need to be adjusted lower.

2V ≥ 70%

4V ≥ 45%

5V ≥ 32.%

8V ≥ 5% (Bass boost must be left at minimum on the amp and 0 or flat on the head unit or processor) 10V ≥ Can not be used with this amplifier.

If your amplifier includes Hi-Level (speaker wire) inputs and you are using them for the audio signal connec- tion, please use the below steps to adjust the amplifier. Start with a song with good bass that you know very well.

1.Use a screwdriver to turn GAIN (8V / 0.2V fully counter clockwise to 8V

2.Turn the auto sound system’s volume control to about 3/4 of its full range. Any higher normally leads to the signal being distorted.

3.Turn up the amplifiers gain / level control unit the sound begins to distort, then immediately gain / level down to a point just before where the distortion began.

4.Adjust the auto sound system’s volume control to a comfortable listening level and you are good to go.

NOTE: The steps to adjusting the gain / level control need to be repeated when you adjust any bass boost setting on the amplifier, processors or significantly on the head unit. Adjusting bass boost settings signifi- cantly without adjusting the gain / level can lead to a distorted signal and damage to the amp and speakers.

IMPORTANT NOTE: If you should have any questions concerning the installation or set- tings on your amplifier or are unsure of anything discussed in this manual, please contact our Technical Support department at 714.452.1476 for help. It is much better to take 5 minutes today to get it right then to adjust the settings incorrectly and have a problem with your amp or speakers.

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AudioBahn A18001DJ, A12001DJ owner manual Adjusting and Tuning
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A12001DJ, A18001DJ specifications

AudioBahn is renowned in the world of car audio for producing powerful amplifiers that satisfy the needs of enthusiasts and audiophiles alike. Two notable models in their amplifier lineup are the A18001DJ and A12001DJ. These models showcase AudioBahn’s dedication to quality, performance, and innovative design.

The AudioBahn A18001DJ is a monoblock amplifier designed primarily to drive subwoofers. With an impressive output of 1800 watts RMS at 1 ohm, this amplifier can deliver deep and powerful bass, ensuring a dramatic listening experience. One of its standout features is the variable low-pass filter, which allows users to tailor the frequency response to their preferences, ensuring the subwoofer performs optimally. The A18001DJ also flaunts a sleek and robust design, making it not only a powerful performer but also a visually appealing component in any audio setup.

On the other hand, the A12001DJ is another monoblock amplifier that focuses on providing quality power but with a 1200 watts RMS output, ideal for those who want strong bass without needing to push their system to its limits. Similar to the A18001DJ, the A12001DJ features a variable low-pass filter, enabling customization of sound output. This is complemented by a built-in bass boost that can enhance low frequencies, allowing users to adjust the sound according to their taste.

Both amplifiers utilize advanced heat management technologies that incorporate a built-in fan. This ensures optimal performance without overheating, maintaining reliability even during extended use at high output levels. Additionally, the amplifiers come equipped with a remote bass level control, giving users the flexibility to adjust bass levels on-the-fly.

Another significant characteristic of both models is their durable construction. With a double-sided PCB design and high-grade electronic components, they are built to withstand the rigors of increased power demands while delivering consistent audio performance. The amplifiers also feature multiple protection circuits, such as short circuit and thermal protection, ensuring longevity and reliability in any audio setup.

In conclusion, the AudioBahn A18001DJ and A12001DJ amplifiers represent a blend of power, functionality, and design that is well-suited for car audio enthusiasts. Whether you’re after earth-shaking bass or simply looking to enhance your overall sound quality, these amplifiers provide the necessary features and reliability to elevate your listening experience.
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