156 GUIDE - AMPLIFIERS
KEMPTON | KA SERIES
www.fbt.it
The Kempton KA Series is designed and engineered by FBT, Italy. The amplifier series features circuitry designs in Class-D, Class-H and Class-AB using surface mount technology with the placement of high grade output components to provide extremely low distortion factors as low as (<0.03%) THD along with a wide and ruler flat frequency response. The KA 2403 power amplifier features three channels deliv- ering two 500W continuous at four ohms with a third channel of 1,000W continuous at four ohms to power a dedicated subwoofer in a two rack space chassis. Additional features include a high pass filter switch and variable stereo crossover frequency potentiometers to contour the response to satellite speakers.
KLING & FREITAG | TOPAS
www.kling-freitag.biz
The Topas is a network-capable, dual-channel DSP amplifier for fixed installations. The DSP amplifier was specially designed for optimal op- eration with Kling & Freitag loudspeakers. It is also possible to use it with other loudspeaker systems. Via Ethernet, the Topas can be highly variably switched on and off, controlled and monitored. The four general pupose inputs allow users to adjust volume (digital VCA), switch on / off the amplifier, mute the channels and switch the inputs of the audio signal. Users can assign events to the outputs such as amplifier status, mute status of the channels or Prio audio activity via the web interface. Further features include the integrated web server for concise configuration, easy location of all devices in the network using AutoIP/mDNS, and the configurable access control with user / password. The Topas can be operated remotely, no matter which operating system is used. Because of the redundant firmware, updates are safe and easy. The standby power consumption is limited to 4.5W. The amplifier is ready to operate within a few seconds after power on. The activation can be set via a signal over GPI, ethernet or by pressing the front button. The Topas allows users to monitor the internal protection circuits (clipping, DC, short circuit, temperature, voltage) via the web interface or soon, over a remote application. Permanent monitoring of the processor via watchdog and load monitoring of the connected speakers in the future is guaranteed. All events can be monitored via web interface or GPIO.
LAB.GRUPPEN | IPD SERIES
www.labgruppen.com
In a sleek and ultra-compact package, the new IPD (Intelligent Power Drive) Series unite - for the first time -
Lab.gruppen performance and reliability with cutting-edge DSP features and affordability. The IPD Series packs more features and greater power density into a 1U frame than found in most competitive 2U platforms. Two power configurations are available, IPD 1200 and IPD 2400, with power outputs (at four ohms) of 2 x 600W and 2 x 1,200W, respectively. At the heart of the IPD Series platform is a powerful DSP engine equipped with a total of 40 real-time, multi-slope parametric EQs along with adjustable gain, input delay, output delay, and high-pass and low-pass filters adjustable to any frequency. A software configurable voltage peak limiter (SCVPL) tailors outputs to load conditions, maintaining pristine sound quality, while a four-channel input mixer provides flexible input routing. Parameters may be stored in up to 100 user-defined presets, and all processing power is harnessed for easy use through the intuitive, touch-based GUI of IntelliDrive controller. Available for PC, Mac and as a dedicated iPad app, this powerful software interface enables fast and accurate remote system tuning over ethernet or wirelessly via a suitable wifi router.
MARTIN AUDIO | MA SERIES
www.martin-audio.com
The MA2.0 and MA3.0 two-channel amplifiers and MA2.8Q four-channel amplifier are the latest additions to the MA Series of amplifiers from Martin Audio. Each weighing only 7.3kg, all three models share the same advanced switch-mode power supply and fixed-frequency Class D output stage technology. The output stages typically achieve 95% efficiency, almost independent of input level, and dissipate only 5% of energy as heat. The MA2.0 and MA3.0 provide up to 2 x 1,000W and 2 x 1,500W respectively into four ohms, while the MA2.8Q delivers up to 4 x 700W into four ohms. All channel pairs are bridgeable into eight ohms. Each model features a variable-speed cooling fan and advanced protection - including AC, DC, VHF and short circuit protection as well as clip limiters and comprehensive, two-stage thermal protection strategies. Multiple applications include small-to-medium portable live sound, stage monitors and fixed installations.
www.mondodr.com
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