Amplifier considerations, Equalisation | Turbosound TL-1550 guide

user manual

TL series

Amplifier considerations

Turbosound speaker enclosures should be driven by high quality power amplifiers designed for true professional use. Such amplifiers will have balanced inputs, DC and RF fault protection, and well-designed cooling systems for reliability. Turbosound power amplifiers such as the TMC- T1000 are available and recommended for this purpose.

The program power listed in the loudspeaker’s technical specification is the best guide to the size of amplifier required for general-purpose applications. The amplifier should therefore be capable of delivering long term broadband power equal to the loudspeaker’s program power rating at the loudspeaker’s stated nominal impedance. This approach allows sufficient headroom to generate good dynamic range.

RECOMMENDED AMPLIFIER POWER RATINGS:

The amplifier's rated r.m.s. continuous power output (20Hz – 20kHz, per channel) should be equal to the program power handling of the loudspeaker at its nominal impedance.

In general, the more powerful the amplifier the better it will sound, provided that it is not driven into sustained clipping. It should be understood that overdriving an insufficiently powered amplifier is more likely to cause loudspeaker damage – the total energy in a heavily clipped signal is far higher than in an unclipped signal – than operating a more powerful amplifier within its ratings.

Equalisation

TL series enclosures are designed to provide smooth and even frequency response. They do not need excessive amounts of external equalisation to overcome the sonic deficiencies often found in many lesser designs.

In order to compensate for the room acoustics, TL series enclosures require only minimal equalisation. As in any system, over-equalisation introduces phase shifts, distortion and a reduction in headroom, usually causing more problems than it cures. Under most circumstances a 1/3 or 1/2 octave graphic equaliser will generally be adequate, with the fader settings applied smoothly and as little as possible for the required room compensation. Most rooms will have resonances that will be excited at particular frequencies needing some cut to help tame the sound. These problems are most pronounced at the lower frequencies where loudspeakers generally exhibit very little directional control. If you find that the system needs a lot of boost at lower frequencies you may need additional sub-bass units. It is good practice to use as little equalisation as possible, aiming to cut frequencies rather than adding large amounts of boost.

TL series manual page 9

TL-1561, TL-1500, TL-1800, TL-1501, TL-1550 specifications

Turbosound is a renowned brand in the professional audio industry, known for its innovative speaker designs and outstanding sound quality. Among its popular offerings are the TL series loudspeakers, specifically the TL-1201, TL-1550, TL-1501, TL-1800, and TL-1500. Each of these models is engineered to deliver exceptional audio performance in various applications, from live sound events to fixed installations.

The TL-1201 is a versatile enclosure, featuring a 12-inch low-frequency driver complemented by a high-frequency compression driver. This model excels in mid-sized venues, offering a frequency response that captures both clarity and depth. Its durable build and user-friendly design make it a favorite among sound professionals seeking reliable performance.

Next in the lineup, the TL-1550 boasts a 15-inch low-frequency driver, providing enhanced bass response. This model is particularly effective for larger environments such as concerts and theaters. Its advanced horn loading technology ensures optimal dispersion of sound, enabling unparalleled audio coverage across the listening area. The TL-1550's robust cabinet construction enhances durability while reducing unwanted resonance, resulting in clean audio output.

Moving on to the TL-1501, this speaker features a unique dual-driver configuration, consisting of dual 15-inch woofers designed for maximum efficiency and power handling. This model is tailored for high-energy applications such as live music performances and DJ events. The TL-1501's advanced crossover technology allows for seamless integration between the drivers, delivering a cohesive sound that captivates audiences.

The TL-1800 is a subwoofer that takes low-frequency performance to the next level. With an 18-inch high-excursion driver, it produces thunderous bass that can be felt as well as heard. Ideal for electronic music events and large venues, the TL-1800 features a robust enclosure that minimizes distortion while maximizing low-end impact. Its versatility also makes it suitable for both portable and fixed installations.

Finally, the TL-1500 is engineered for those who demand both power and precision. It features a 15-inch woofer and provides a frequency response tailored for vocal clarity and musicality. This speaker excels in both live performance settings and system integration for larger sound configurations. The TL-1500's advanced thermal management system ensures reliability, allowing for extended use without loss of performance.

In summary, the Turbosound TL series—TL-1201, TL-1550, TL-1501, TL-1800, and TL-1500—presents a comprehensive lineup of loudspeakers designed to meet the diverse needs of audio professionals. Each model incorporates cutting-edge technologies that enhance sound quality, durability, and overall performance, making them a preferred choice for anyone serious about audio excellence.