Turbosound TQ-440SP user manual Audio Input, Limiting Functions, Music / Speech Optimisation

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user manual

QLight series

Audio Input

The signal input to the TQ-440SP is fully balanced, with an input impedance of 10kΩ . The input XLR connector is wired pin 2 hot (+ve), pin 3 cold (-ve), and pin 1 screen (shield). The link XLR connector is wired pin 2 hot (+ve), pin 3 cold (-ve), and pin 1 not connected. Multiple TQ-440SP enclosures may be driven from a single audio console, up to a practical limit of 16 units. Any more will cause unacceptable signal loss due to the loading of the console output.

Limiting Functions

The TQ-440SP is equipped with accurate peak limiters for both high frequency and low frequency sections. Because the HF and LF limiters work independently of each other, there is no possibility of either section compromising the performance of the other as is the case with a single broad- band limiter. Furthermore, each limiter has its attack and release time constants independently set and optimised according to the operating frequency range.

Music / Speech Optimisation

A rear panel switch modifies the overall response of the TQ-440SP in order to give you optimised profiles for different applications. When the speech position is selected, the response of the system will exhibit a reduced low frequency / low midrange content, which has the effect of making the upper part of the frequency range more prominent. This results in exceptionally good intelligibility, and therefore the speech setting is recommended whenever maximum voice projection is required. Additionally, under most circumstances the speech setting will provide higher perceived maximum sound pressure level.

When the music position is selected, the low frequency section is extended down to a nominal cut- off frequency of 55Hz, which makes the TQ-440SP balanced for full range reproduction of a wide range of music. The low frequency extension is achieved by using a combination of a 2nd order high-pass filter and a dynamic EQ section, with the following benefits:

♦Frequencies below 50Hz are attenuated, and the mechanical stress on the low frequency drive unit is therefore maintained within safe limits.

♦The use of dynamic as well as than fixed EQ reduces the loss of headroom on large signals.

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Contents QLIGHT Series 08/06/2001 335 Pmcontents QLight seriesImportant Safety Information Thanks Unpacking the TQ-440SP loudspeaker Features IntroductionProduct Summary Connector Panel Functions Power Amplifiers AC power requirementsSystem Requirements Limiting Functions Audio InputMusic / Speech Optimisation Dispersion EqualisationCooling Mounting and Fixing QLight series QLight series QLight series Arraying Choosing the best location Removal of the Amplifier module MaintenanceRemoval of the 12/1 driver Removal of the midrange drive unit Technical Specifications Appendix aSpares and accessories Flying accessoriesWarranty Coverage Limited WarrantyShipping Incidental and consequential damages Limitation of implied warranties

TQ-440SP specifications

The Turbosound TQ-440SP is a powerful and versatile subwoofer that has made a significant impact in the world of professional audio. Designed with precision and performance in mind, the TQ-440SP stands out for its ability to deliver deep, impactful bass while maintaining clarity and balance across various applications.

One of the main features of the TQ-440SP is its robust construction. Built with a durable wooden enclosure, it provides both strength and resonance control, ensuring that the sound produced is not only loud but also clean and distortion-free. This is essential for live sound reinforcement, as well as installed applications in venues such as clubs, theaters, and concert halls.

The TQ-440SP is equipped with a high-performance 18-inch driver that is engineered to handle high power levels and produce exceptional low frequency output. This driver technology allows for an impressive frequency response, reaching down to 30Hz, which is crucial for genres that rely heavily on bass, including electronic, hip-hop, and orchestral music.

Another noteworthy technology in the TQ-440SP is its advanced system processing. The integrated digital signal processor (DSP) features advanced algorithms for crossover, limiting, and equalization, allowing users to tailor the subwoofer's performance to match specific room acoustics or system configurations. This capability enhances overall sound quality and ensures optimal performance, regardless of the setting.

Moreover, the TQ-440SP is designed for easy integration with other audio components. Its dual-input connectors accommodate a variety of input options, making it versatile enough to work with different mixing consoles and amplification setups. Additionally, it can be combined with Turbosound's other loudspeakers to create a cohesive sound system that delivers full-range audio experiences.

Portability is another consideration in the design of the TQ-440SP. Weighing in at a manageable level, it can be transported and set up with relative ease, making it an excellent choice for mobile applications such as touring and events.

Overall, the Turbosound TQ-440SP is more than just a subwoofer; it is a comprehensive solution for sound professionals seeking high-quality, reliable low frequency performance. Its combination of powerful drivers, advanced processing, and practical design features make it a go-to choice for demanding sound applications, setting a standard in the realm of professional audio equipment.
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