Power Amplifiers
FESTIVAL PROS
L-Acoustics LA8
Proprietary algorithms are processed in a 32-bit floating point DSP engine at a 96 kHz sampling rate. A dedicated engineering
approach combining IIR and FIR filters allows generating perfectly linearized phase curves and significantly improved impulse
responses for an even more natural, transparent, and realistic sound experience. Two cascaded 24-bit A/D converters at the
front-end yield a ground-breaking encoding dynamic of 130 dB.
The L-DRIVE protection system carries out a dual analysis of signal level in real-time and RMS. Under extreme conditions when
component membranes reach the over-excursion zone or if the coil ensemble temperature reaches a critical point, L-DRIVE acts
as a power regulator. As a result the amount of power delivered at any channel is adjusted to the dynamic and thermal capacity
of each individual transducer. This optimizes the power resources while preserving the highest dynamic range.
With a complete preset library and the possibility of creating additional user presets, the engineer is offered fingertip access
to all the usual L-ACOUSTICS loudspeaker system configurations.
The four amplifier channels driven by two inputs provide optimum system flexibility. The LA4 and LA8 offer two specific power
ranges (4 x 1000 watts into 4 ohms, and 4 x 1800 watts into 4 or 2.7 ohms, respectively) yielding perfect power matching to
each individual L-ACOUSTICS loudspeaker system.
The built-in technologies allow control of the very wide dynamic range found in live audio productions while the high-efficiency
components offer superior reliability, all from a sleek ergonomic package with exceptional weight/size ratio.
The front panel user interface features extremely fast access to edit the 2 input and 4 output settings. The encoder wheel gives
instant access to the user menus and the LCD screen offers real time visualization of the system parameters.
Command access includes mute, gain, preset selection, plus delay and polarity settings. Navigation through the menu pages is fast
and intuitive. Beside the standard on-board preset library, the engineer can design and store his own settings (initialized from
a standard preset template) in one of the 10 available user locations.
Main Features include:
• Cutting edge loudspeaker amplification, DSP, network
• High-grade 24 bit A/D converters, 130 dB dynamic range
• 96 kHz/32 bit floating point SHARC DSP
• 4 channel high efficiency amplifier section fed by 2 inputs
• 4 x 1800 W / 4 Ohms
• Advanced dual IIR/FIR filter algorithms
• Exclusive L-DRIVE system protection
• Complete onboard L-ACOUSTICS preset library
• LA NETWORK MANAGER 2 software for remote control & monitoring
• AES/EBU Standard on LA8 and LA-RAK
Crest Audio CC 4000
The CC Series amplifiers are built with tunnel-cooled heat sinks, variable-speed DC fans and extensive protection
circuitry for superior efficiency into difficult loads and power conditions. The robust amps also boast of more
power devices (16 per channel), in addition to a switched-rail class H output stage and triple-compound design
to provide low distortion and good thermal stability.
With a linear power supply the three versatile CC Series amps deliver stable and high power output for running main
systems, monitors and subwoofers.
Main Features include:
• 8 Ohm Stereo - 800 W
• 4 Ohm Stereo - 1350 W
• 2 Ohm Stereo - 2000 W
• 4 Ohm Bridged - 4000 W
• Toroidal power transformer
• Magnetic circuit breaker on/off switch
• Cooled by variable speed fan with back-to-front airflow
• Mode selector switch for stereo, parallel and bridged-mono operation
• Inputs: Balanced female XLR, 1/4” TRS combi jacks
• Outputs: Speakon® and five-way binding posts
• Recessed, stepped attenuators
• 16-gauge steel chassis, cast aluminum front panel
• Five-year warranty
Powersoft X8
Powersoft X8 innovates and evolves the concept of the amplification platform though the integration of a worldwide
compatible power-box and a full feature DSP inside the power amplifier.
The complete digital audio signal management system based on ARM Cortex A-8 processor and TI C6000 DSP platform
heralds new and innovative level of signal processing, providing non-boolean routing and mixing, multi-stage
equalization with raised-cosine, IIR and FIR filters, delay up to 4 s in input processing and 200 ms for time
alignment, gain and polarity adjustment, crossover, peak limiters, TruePower limiters and Active DampingControl.
The power supply permits worldwide AC acceptance and direct connection to any regional power line configuration,
it is now suitable to Single Phase, Bi-Phase or Three Phase operation from 85 VAC up to 440 VAC without need of
manual selection. True Three Phase load balancing is directly achievable by the unit without any complex load
assignment in the power distribution system design.
Main Features include:
General
• 6th generation fixed frequency switchmode output stage for high grade sound accuracy
• Compact size and high power density
• Modular construction allowing for rear panel customization
• AES3 digital inputs
• Two redundant Dante streams
Settings
• Non-boolean channel routing
• Input signal backup policy aimed to improve reliability against signal fault
• Signal grouping for speaker routing
• Built in WiFi remote management
Monitoring
• Hardware monitor available for fast local diagnostic
• Load impedance measurement / display for each channel
• Output power measurements / display for each channel
• Mains voltage and current measurements / display
Digital Signal Processing
• TI C6000 DSP platform architecture
• AD/DA converter: dual 24bit @ 96 kHz Tandem® architecture, 127 dB dynamic range, per channel
• Input/output independent equalizers per channel providing Raised-cosine, custom FIR, parametric IIR: peaking,
hi/lo-shelving, all-pass, band-pass, band-stop, hi/lo-pass
• Crossovers: linear phase (FIR), hybrid (FIR-IIR), Butterworth, Linkwitz-Riley, Bessel: 6 dB/oct to 48 dB/oct (IIR)
• Input delay up to 4 s and output delay up to 200 ms for time alignment per channel
• Active DampingControl for cable compensation
• Power limiter (TruePower, RMS voltage, RMS current) + Peak Limiter
Peavey CS4080HZ
Peavey CSSeries showcases workhorse reliability. Over the years, these amps have benefited from some of
Peavey’s most popular audio innovations, including its DDT compression/anti-clipping protection. With its 2
RU design and power points up to 4080 watts, this latest evolution of the CS Series is leaner, louder and lighter.
Main features include:
• 2 temperature-dependant variable speed fans
• 2040 watts (rms) per channel at 4 ohms
• 1250 watts per channel at 8 ohms
• 4080 watts at 8 ohms bridged
• 5-year warranty
• 2-rack-space stereo power amp featuring DDT
• Weight Unpacked: 47.60 lb(21.591 kg)
• Weight Packed: 53.00 lb(24.04 kg)
• Width Packed: 21”(53.34 cm)
• Height Packed: 22.5”(57.15 cm)
• Depth Packed: 6”(15.24 cm)
Crown XLS 2500
The XLS Series of power amplifiers from Crown define the standard for live sound systems with efficient performance,
technology, and affordability. Its advantageous flexibility includes multiple inputs so that the user can plug in
anything and play anywhere, along with several system setup configurations. The integrated crossovers and switch-mode
power supply produce superior sound, and Peakx limiters protect the speakers. Weighing less than 12 pounds, it is
much easier to set up and move from show to show. XLS is reliable, versatile and efficient amp.
Generating chest-thumping lows and crystal clear highs, the four models in the series – the XLS1000, XLS1500,
XLS2000 and XLS2500 are engineered to meet any demanding audio requirements, reliably and within budget.
Main features include:
• XLS High Performance, Lightweight Class D amp weighs less than 11 lbs.
• Integrated PureBand Crossover System for better performance and control
• Peakx Limiters provide maximum output while protecting the users’ speakers
• XLR, 1/4”, RCA inputs provide outstanding flexibility
• Efficient forced-air fans prevent excessive thermal buildup
• Electronically balanced XLR inputs; touch proof binding post and Speakon outputs
• Precision detented level controls, power switch, power LED, and six LEDs which indicate signal, clip and fault
for each channel
Yamaha PX10
PX series models are driven by a newly developed Class-D amplifier engine that concentrates functions into a single custom
LSI chip and uses PLL technology to control transfer characteristics in real time, achieving impressive sound quality
and power. This new single-chip architecture offers higher output and improved performance in a more lightweight yet
reliable design. A combination of cutting-edge technology and an exhaustive component selection process make PX Series
amplifiers supremely efficient amplifiers with low noise, reliable protection features and good sound quality. The
versatile PX series power amplifiers lineup combines intelligent processing with high output power to meet the
requirements of a vast range of sound reinforcement environments.
Main Features include:
• 2x 1000W at 8Ω
• 2x 1200W at 4Ω
• Newly developed Class-D amplifier engine with a custom LSI
• Flexible onboard PEQ, crossover, filters, delay, and limiter functions
• Yamaha Speaker presets
• Utlities for safe and secure operation