High-Pass Crossover

When the switch is to the center (FULL position), the high-pass cross- over is bypassed.. When the switch is to the right, the high-pass cross- over is active.. The high-pass crossover is continuously variable from 50Hz to 2000Hz..

Adjusting Bass Boost

Bass Boost maximizes the performance of a subwoofer and allows for continuous adjustment of low frequency boost on the rear channels.. Bass Boost can be adjusted from 0dB to 18dB of boost centered at 45Hz.. Initially the Q is very low (wide).. As Boost is added, the Q rises (narrows).. This allows the amplifier to overcome acoustic deficiencies in your vehicle.. The type of enclosure used, the sub-woofer’s excursion capability, personal preference, and attitude determine acceptable boost levels..

WARNING! Exercise caution when setting Bass Boost.. Maximum boost can potentially cause woofer damage due to over-excursion..

NOTE: While the amplifier allows up to 18dB of boost, it is possible to clip the amplifier with comparatively low output levels in other frequency ranges..

Infinite Baffle Subsonic is set at 20Hz

By removing low frequency signal that the woofer cannot produce, the woofer can play its capable range louder.. The first example is an infinite baffle situation.. The first graph displays the frequency response of a 12-inch woofer in an infinite baffle application without the high-pass filter.. As you can see, with +3dB of boost and the high

pass filter set to 30Hz, the woofer has more output down to 25Hz and less overall excursion when compared to the non-high-pass response.. Maximum physical excursion capability of the woofer is 15mm..

Figure 3

Figura 3

Abbildung 3

Figure 4

Figura 4

Abbildung 4

NOTE: The first graph is the response; the second graph is the driver excursion.. These designations apply to the following graphs as well..

© 2008 Directed Electronics. All rights reserved.

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Directed Audio XTR2504, XTR5004 High-Pass Crossover, Adjusting Bass Boost, Infinite Baffle Subsonic is set at 20Hz
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XTR5004, XTR2504 specifications

The Directed Audio XTR2504 and XTR5004 are premium amplifiers designed for audio enthusiasts seeking an exceptional listening experience. These models are part of Directed's XTR line, which is known for its innovative technology and high performance, catering to both car audio and home audio applications.

One of the main features of the XTR2504 is its compact design, which allows it to fit in a variety of installation locations without compromising on power. The amplifier is rated at 250 watts RMS, providing ample power to drive mid-range and high-frequency speakers. It boasts a 4-channel output configuration, making it suitable for multi-speaker setups and offering flexibility for system customization.

The XTR5004 takes performance a step further, delivering an impressive 500 watts RMS. This model is ideal for larger setups or for users who require additional power to energize larger speakers and subwoofers. Both models utilize high-efficiency class D amplification technology, which minimizes power consumption while maximizing output. This efficiency translates to less heat generation, allowing for prolonged use without the risk of overheating.

One of the standout technologies featured in these amplifiers is their advanced signal processing capabilities. Both the XTR2504 and XTR5004 come equipped with variable high-pass and low-pass filters, allowing users to tailor the output frequency range according to their specific needs. This feature is crucial for optimizing sound quality, ensuring that each speaker operates within its optimal range, leading to a clearer and more balanced audio experience.

The amplifiers also incorporate a robust thermal management system, including built-in protection mechanisms that prevent damage from overheating or short circuits. This attention to durability and reliability makes the XTR2504 and XTR5004 ideal choices for both competitive audio setups and casual listening environments.

Additional characteristics include a sleek, modern design featuring a durable chassis that can withstand the rigors of installation in car environments. The amplifiers feature high-quality RCA inputs and remote gain control options for user convenience.

In summary, the Directed Audio XTR2504 and XTR5004 amplifiers exemplify cutting-edge technology in the realm of audio performance. With their powerful output, efficient design, and customizable features, these models are designed to provide an immersive audio experience that will satisfy even the most discerning audiophiles.
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