Turbosound TQ-440SP Maintenance, Removal of the Amplifier module, Removal of the 12/1 driver

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user manual

QLight series

Maintenance

Should a fault develop with the amplifier module, we recommend that you remove the module as described below and return it to a qualified Turbosound service centre for repair. The module contains no user-serviceable parts, and the warranty will be invalidated if unauthorised repairs are carried out.

If one of the drive units in the cabinet should cease functioning and needs a replacement recone or diaphragm you are advised to remove the faulty unit from the cabinet and send it to a professional recone service authorised to recone Turbosound loudspeakers. This will ensure the continued high performance of your TQ-440SP.

Removal of the Amplifier module

1.Release the four M5 Allen head bolts securing the amplifier module to the rear of the cabinet and disconnect the Molex 4-way connector from the PCB. The module can now be lifted clear of the cabinet and set aside.

2.Replacement is a straightforward reversal of the above procedure. Take care to connect the Molex connector securely to the PCB (it is polarised and cannot be connected incorrectly) before replacing and tightening the four M5 Allen head bolts.

Removal of the 12”/1” driver

1.Unscrew the eight countersunk screws from the two vertical battens which hold the protective grille in place. Be careful when removing the grille as it is under tension and may spring outwards when released. Set the battens, grille and fixing screws aside for later re-assembly.

2.Undo the eight M6 x 30mm Allen head bolts holding the driver in place and carefully pull it out and away from the cabinet. WARNING - This unit is heavy! You will notice that the 1” high frequency driver is attached to the back of the 12” low frequency driver by its screw adapter. Disconnect the cables from both HF and LF units and completely remove the driver assembly from the cabinet. Make a note of the driver polarity for later reconnection.

3.Separate the drive units by unscrewing the high frequency driver anti-clockwise and lift it away from the low frequency driver. Depending on which section needs servicing, the appropriate drive unit should be returned to an authorised Turbosound service centre.

4.To reinstate the drivers, simply reverse the above procedure making sure you observe the correct polarity when reconnecting the cables back into the terminals of the drive units.

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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 AC power requirements Power AmplifiersSystem Requirements Audio Input Limiting FunctionsMusic / Speech Optimisation Equalisation DispersionCooling Mounting and Fixing QLight series QLight series QLight series Arraying Choosing the best location Maintenance Removal of the Amplifier moduleRemoval of the 12/1 driver Removal of the midrange drive unit Technical Specifications Appendix aSpares and accessories Flying accessoriesLimited Warranty Warranty CoverageShipping 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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