Power switch on/off

Upper position: Power on

Lower position: Power off

Middle position: Auto on

At this position the subwoofer amplifier is in a stand by mode, awaiting an input signal. When there is no signal, the amplifier is shut down. As soon as the signal appears, the amplifier switches on. If signal is absent, the amplifier will shut down automatically after a pre-determined period of time. The power indicator is red when the switch is at OFF position, and green when the switch is at ON or AUTO position.

Volume Control

Use this control to balance the level of the woofer with the level of your main speakers.

Crossover Frequency control

If you are using small loudspeakers (4”to 6” woofers) in your main system, you will need to set the crossover frequency at a high position (100 to 160 Hz). If your main speakers have larger woofers (8” and above) you will need to set the crossover frequency to much lower position (40 to 80 Hz). Generally, the larger the speaker, the greater the low frequency output will be. If the frequency control is set too high, the bass will appear “boomy” due to outputs of subwoofer and main speakers overlapping each other. If it is set too low, the bass will be ill defined and the subwoofer will sound detached from the rest of the system.

Phase Control

Use this control to determine the best possible bass performance of your system. There can be interference between your main speakers and subwoofer at the frequency where they cross over due to placement, room acoustics and type of main speakers used. By carefully positioning the subwoofer in the room in combination with the level and crossover control, you should be able to get a seamless transition between your main speakers and subwoofer. Start with the full anticlockwise 0 position. This means that the subwoofer will push out positive pressure wave corresponding to a positive electrical input. The 180 full clockwise position inverts this so the subwoofer will put out a negative

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American Acoustic Development C -11 manual Power switch on/off, Volume Control, Crossover Frequency control, Phase Control
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C -11 specifications

The American Acoustic Development C-11 is a noteworthy addition to the realm of acoustic technologies, catering to audiophiles and music enthusiasts alike. This remarkable speaker system embodies cutting-edge engineering and a commitment to delivering superior sound quality.

One of the standout features of the C-11 is its remarkable frequency response. It reproduces sound frequencies ranging from deep lows to crystal-clear highs, ensuring a well-rounded audio experience. Its design includes high-performance woofers and tweeters that work harmoniously to create a balanced soundstage. This allows for an immersive listening experience, making you feel as though you are part of the performance, whether it’s a symphony or an intimate jazz session.

Another significant technology integrated into the C-11 is advanced sound dispersion. With its specially engineered cabinet design, it minimizes distortion and enhances sound projection. This technology allows for a wider sweet spot, ensuring that listeners can enjoy optimal sound quality, regardless of their listening position in a room.

The C-11 also boasts superior build quality, utilizing premium materials that not only enhance aesthetic appeal but also contribute to acoustic performance. The cabinet is constructed from high-density MDF, which reduces resonance and allows for cleaner sound reproduction. Additionally, its sleek, modern design complements various interior styles, making it a visually appealing choice for home audio setups.

In terms of connectivity, the C-11 is designed for versatility. It features a range of inputs, allowing it to be easily integrated into both home theater systems and high-fidelity audio setups. The speakers are also compatible with various audio formats, giving users the flexibility to enjoy music from multiple sources.

Another remarkable feature of the C-11 is its energy efficiency. With a focus on sustainability, this speaker system is designed to consume less power while still delivering high performance. This makes it not only an eco-friendly option but also a cost-effective one for audiophiles who spend hours enjoying their favorite tunes.

In summary, the American Acoustic Development C-11 stands out for its high fidelity sound, advanced engineering, and stylish design. Its combination of superior audio performance, innovative technologies, and modern aesthetics makes it a compelling choice for anyone looking to elevate their audio experience. Whether for casual listening or critical listening sessions, the C-11 promises to deliver an acoustic experience that is nothing short of exceptional.
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