User responsibility, Speaker protection

6safety

LT / ST owner’s manual

user responsibility

Your LT / ST Series amplifier is very powerful and can be potentially dangerous to loud- speakers and operators alike. It is your responsibility to read important precautions (see the inside-front cover) and make sure that the amplifier is installed, wired, and operated properly as instructed in this manual.

Many loudspeakers can be easily damaged or destroyed by overpowering, especially with the high power available from a bridged amplifier. Always be aware of the speak- er’s continuous and peak power capabilities. Crest Audio is not responsible for damage to loudspeakers for any reason.

see—speaker protection

speaker protection

All loudspeakers have electrical, thermal and physical limits which must be observed to pre- vent damage or failure. Cone or compression drivers can be damaged (sometimes to the point of failure) from excessive power, low frequencies applied to high frequency drivers, severely clipped wave forms,and DC voltage. All LT / ST Series amplifiers automatically protect speak- ers from DC voltages and subsonic signals.

see—TourClass protection

Mid- and high-frequency transducers—compression drivers in particular—are highly suscep- tible to damage from overpowering,clipped wave forms,or frequencies below their rated pass band.When using an electronic crossover, make absolutely certain that the low and mid bands are connected to the correct amplifiers and drivers—and not accidentally connected to those for a higher or lower frequency band.

The amplifier’s clipping point is its maximum peak output power. At maximum peak output power,Crest Audio LT / ST Series amplifiers will deliver more power than many speakers can safely handle. Be sure the peak power capability of the amplifier is not excessive for your speaker system.To ensure that the speakers never receive excessive power, and to prevent amplifier clipping,use a properly adjusted external limiter (or a compressor with a ratio of 10:1 or higher) to control power output. Use one compressor/limiter for each frequency band in systems with active electronic crossovers.

The ACL clip limiting circuit will automatically limit the duration of squared-off, continuous wave forms applied to the speakers.The amplifier will, however, allow normal musical transient bursts to pass. Of course, when the amplifier does clip, it is operating at its maximum output power. Note that some speaker systems are packaged with proprietary “processors” that have power limiting circuits and therefore should not require additional limiting. Do not drive any low-frequency speaker enclosure with frequencies lower than its own tuned frequency; the reduced acoustical damping could cause a ported speaker to bottom out even at moderate power. Consult the speaker system specifications to determine its frequency limits,and employ a roll-off filter if necessary.

recommended speaker cabling

The wire gauge charts will assist you in determining the optimum copper wire gauge for your speaker cables. Remember that the speaker cable resistance robs amplifier power in two ways: through power lost directly to resistance (often referred to as I2R loss), and through increased total load resistance, which decreases the amount of power available from the amplifier. Appendix C gives cable length figures in feet/AWG wire gauges and in metric values.

see—wire gauge

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LT Series, ST Series specifications

Peavey Electronics, a pioneer in audio equipment, has made significant strides in the amplifiers market, particularly with its LT and ST series. These series embody Peavey’s commitment to quality sound, rugged design, and innovative technology, making them popular among both novice musicians and seasoned professionals.

The Peavey LT Series is designed primarily for portable use, making it an excellent choice for musicians on-the-go. One of the prominent features of the LT Series is its lightweight construction, allowing for easy transport without compromising sound quality. The series incorporates advanced DSP technology, which provides users with a variety of sound shaping tools. This includes presets for different genres and venues, ensuring that artists can achieve the desired tone quickly and efficiently. Additionally, the LT models often include Bluetooth connectivity, enabling musicians to stream music and use mobile apps for easy control and adjustments.

On the other hand, the Peavey ST Series is tailored more towards permanent installations and professional settings. These models boast higher wattage output, catering to larger venues and more demanding applications. The ST Series amplifiers are renowned for their robust build quality, with heavy-duty enclosures designed to withstand the rigors of live performances. The signature Peavey sound is preserved in these models, thanks to their high-efficiency circuits and premium components. The ST Series is equipped with advanced cooling systems to prevent overheating, ensuring reliable performance even during extended use.

Both series utilize Peavey’s patented technologies, such as the DDT (Dynamic Download Technology) which protects speakers from distortion by dynamically adjusting power levels without sacrificing sound fidelity. This technology not only enhances sound clarity but also extends the life of the connected speakers, making the LT and ST series efficient and long-lasting investments.

Moreover, the user interface on Peavey’s LT and ST models is designed for ease of use, featuring intuitive controls that allow musicians to tweak their sound in real time without getting lost in complex menus. The durability and reliability of these amplifiers make them suitable for a variety of applications, from small venues to large concert halls.

In summary, the Peavey LT and ST series represent exceptional choices for various musical contexts, driven by innovative technology, quality construction, and versatile performance capabilities. Whether needed for portable gigs or fixed installations, these series deliver powerful, clear sound that meets the demands of today’s musicians.