(14) LOW CUT SWITCH

This switch is used to activate the LOW CUT filter for the corresponding channel. It is again a push-push type switch, requiring a small "tool" to activate. The IN position routes the input signals through the 40 Hz LOW CUT filter, while the OUT position bypasses the filter. This filter will cut extremely low frequencies, protecting speakers from the possibility of over-excursion. The filter low-frequency roll off is 12 dB per octave. The LOW CUT filter for each channel will function independently of the crossover function to be discussed next.

(15) CROSSOVER SWITCH (150 Hz X OVER)

This switch is used to activate the 150 Hz crossover for the corresponding channel. It is also a push-push type switch and requires a small "tool" to activate. The offers two 150 Hz crossovers. These are specially designed features that enhance the response of most loudspeakers in a typical bi-amped application. Rather than just having a fiat output curve, these crossovers use special filters to tailor the response and provide a flat acoustical output. This type of crossover "sounds" more natural than conventional "state-variable" type crossovers.

With the switch IN, the input signals are routed through the crossover, and the low frequencies are automatically sent to the corresponding channel. At the same time, the high frequencies are sent to the HIGH OUT (17) jack and must then be patched to INPUT of the other channel of this amplifier or to another amplifier input to complete the bi-amped system. Additionally, the low frequencies are sent to the THRU/LOW OUT (16) jack, and can be patched to other amplifier inputs to permit even larger systems. With the switch OUT the crossover is defeated, and input signal is routed directly to the respective power amp channel. The crossover frequency is fixed at 150 Hz and cannot be changed. The crossover configuration is a 4-pole Linkwitz-Riley approximation.

(16) THRU/LOW OUT JACKS

As per previous crossover discussion, this 1/4" jack supplies low-frequency out signals from the activated crossover for patching to additional power amplifier inputs, providing added flexibility in larger bi-amped systems. When the crossover function is not activated, this jack converts to a THRU function, where the output of the electronically balanced input circuitry is supplied to this jack. The THRU function provides the means to patch a full range input signal to the other input of this amplifier (parallel mode), or to other amp inputs in the same rack. This function allows one balanced mixer feed to be connected to the amp via the desired balanced input connector (XLR, 1/4", Barrier), and then further distributed locally. Regardless of the crossover switch position, this 1/4" jack provides an unbalanced (tips/sleeve) output to be patched with single conductor shielded cables.

(17) HIGH OUT JACKS

Again, as per previous crossover discussion, this 1/4" jack supplies high frequency out signals from the activated crossover for patching to this amplifier and/or additional power amplifier inputs. Unlike the low-frequency crossover output, that is automatically routed to the associated channel, the high-frequency output signal must be patched to some suitable input in order to complete the bi-amped system. This 1/4" jack also provides an unbalanced (tip/sleeve) output to be patched with signle-conductor shielded cables.

INDUSTRIAL AND COMMERCIAL INSTALLATIONS

For commercial and other installation where sustained high-power operation is required, the amplifiers should be mounted in a standard 19" rack. It is not necessary to leave a rack space between each amplifier in the stack since each fan pulls air in from the rear and exhausts the hot air our the front. However, an adequate cool air supply must be provided for the amplifier when rack mounted. The internal fan must have a source of air that is not preheated by other equipment. The amplifier will start up in low speed fan operation and will normally stay at low speed unless sustained high-power operation

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PYLE Audio PTA3000 manual LOW CUT Switch, THRU/LOW OUT Jacks, High OUT Jacks, Industrial and Commercial Installations
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PTA3000 specifications

The PYLE Audio PTA3000 is a versatile and powerful audio amplifier designed for both home and professional use, making it a popular choice among music enthusiasts and audio engineers alike. This 3000-watt amplifier delivers exceptional sound quality, making it suitable for a wide range of applications, including events, DJ performances, and home theater setups.

One of the standout features of the PTA3000 is its robust power output, which can drive multiple speakers with ease. It features a dual-channel configuration, allowing users to connect two sets of speakers simultaneously. With a peak power handling of 3000 watts, this amplifier ensures strong and clear audio performance, even at high volumes. The dynamic range is impressive, providing a rich bass response along with crisp high frequencies, making it ideal for various music genres.

The PTA3000 incorporates advanced technologies aimed at improving sound quality and operational efficiency. It uses a state-of-the-art digital signal processor (DSP) that optimizes audio performance, allowing for precise adjustments to equalization settings. Additionally, the built-in cooling fan ensures the amplifier remains cool during extended use, preventing overheating and extending its lifespan.

Another key characteristic is the amplifier's user-friendly design. The front panel includes a series of input and output connectors, allowing for easy setup and integration with various audio devices. Input options include RCA, XLR, and 1/4-inch phone jacks, ensuring compatibility with different sound sources. Adjustable gain controls for each channel also provide users with the ability to tailor audio levels to their preference.

Safety features are also prominent in the PTA3000, with built-in short-circuit protection, overload protection, and thermal protection, making it a reliable choice for professional environments where equipment durability is essential. The sleek and durable metal housing not only adds to its aesthetic appeal but also ensures it can withstand the rigors of regular use.

Overall, the PYLE Audio PTA3000 is an excellent choice for anyone seeking a powerful, reliable audio amplifier. With its high wattage output, digital signal processing capabilities, flexible connectivity options, and robust safety features, it stands out as a well-rounded solution for both aspiring and seasoned audio professionals. Whether powering a concert or enhancing a home audio system, the PTA3000 delivers performance that meets the demands of any sound environment.
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