126
GUIDE - AMPLIFIERS
QSC | PLD SERIES www.qsc.com With three models in the line (PLD4.2, PLD4.3 and PLD4.5), QSC PLD Series amplifiers are designed for portable and live production applications. Offering robust, high fidelity output power, while simultaneously deploying sophisticated digital processing to drive multiple channels and configurations of loudspeakers. Housed in lightweight 2U rack-mount configurations, PLD amplifiers feature new QSC proprietary Class-D power devices and feature Flexible Amplifier Summing Technology (FAST). FAST provides better power allocation by distributing the total amplifier power across one, two, three or all four outputs enabling amp channels to be combined for maximum current or voltage output with the largest model capable of producing 5kW continuous power with burst ratings of up to 8kW. Independent, full-function, onboard loudspeaker DSP on every channel includes crossover and parametric EQ filters, limiting and alignment delay.
QUEST | QX4500 www.questaudio.net The QX4500 is a lightweight and high power amplifier with on board 64-bit digital processing suitable for all professional applications. The amplifier section is conservatively rated at 19kW RMS per channel at four ohms and includes low standby mains consumption and full networking capability. The QX4500 64 bit DSP controller system gives a depth of control that meets the highest of engineering standards. The integrated DSP also features 10 parametric equalisers (PEQs) on each input and each output, AES and analogue inputs and a wide variety of filter and limiting alternatives. Up to 100 presets can be stored in the DSP for instant recall.
SAE | POWER PLANT SERIES www.saeaudio.com Reinventing the concept of high-density multichannel power amplifiers, the Power Plant Series from SAE Audio represent a step further on system performance for high-end installations and pro-touring audio applications. Featuring advanced technology on Class-D power-stages, along with an internal modular structure and channel-independent SMPS power supplies, the Power Plant series brings seamless benefits delivering an unprecedented sound performance with an enormous power density reaching up to 20kW on a single amplifier unit.
YAMAHA | XMV SERIES www.yamahaproaudio.com Combining Class-D efficiency with features designed specifically to benefit commercial installation audio systems, Yamaha’s XMV Series multi-channel power amplifiers comprises eight models: the four channel XMV4280, XMV4140, XMV4280-D, and XMV4140-D and the eight channel XMV8280, XMV 8140, XMV8280-D and XMV 8140-D. XMV amplifiers can operate in both high and low impedance modes simultaneously, eliminating the need for additional equipment and streamlining the installation process. 70V and 100V operation is user-selectable for every pair of channels, with 70V or 100V mode assignable to each pair without affecting the number of available output channels. A Double Power Mode function effectively doubles the output power of selected channels meaning speakers with varying output capacities can be powered simultaneously by the same amplifier. XMV amplifiers feature an innovative, patent pending circuit that brings the efficiency level of the amplifier’s output stage up to over 90%, achieved by automatically switching the circuit to match the corresponding output voltage. Equipped with either Audinate’s Dante digital audio network or the YDIF digital audio format, XMV amplifiers also feature a new switching power supply equipped with power factor correction. This ensures harmonic control and decreases the amount of current draw dramatically, yet still maintains the same output power.
XTA | APA SERIES www.audiocore.co.uk XTA’s APA (Adaptive Processing Amplifier) Series combine new power and DSP platforms designed to interact intelligently and adapt to prevailing conditions, protecting drivers, and enhancing performance from all speaker systems. By including identical quality analogue to digital converters at the outputs as well as the inputs, real time currents and voltages presented at the speaker terminals are fed back into the DSP in addition to processing the incoming audio, allowing the amplifier to adapt and correct its performance continuously. Tight coupling of the power supply’s behaviour through real time monitoring of the mains supply, as well as over twenty temperature sense points means that the amplifier can adjust its power consumption and output drive to ensure that maximum permissible power is always available. The APA-4E8 features four channels of power and processing (totalling 20kW peak output into 4R),with a full suite of XTA’s world renowned DSP including dynamic EQ, FIR (and phase linearisation) and classic IIR filtering, mix matrix, our famously transparent limiters and soft knee compressors. Audio can be routed from analogue, AES or network sources. DSP the amp isn’t using can process further channels and route them back onto the network. USB and internal SD cards offer playback of emergency ‘EVAC’ messages. The APA also includes extensive GPIO and remote control covered by Ethernet, USB and RS485. The 2U design has a colour LCD and weighs 15kg. New remote software, for Windows and Mac, is also available.
www.mondodr.com