156 GUIDE - AMPLIFIERS
NOX AUDIO | PA SERIES
www.noxaudio.com
NOX Audio designed the PA Series to meet a demand for high-performance / high power / cost-effective constant voltage power ampli- fiers. Some extra features were added that will be useful for many types of small installations, the stereo to mono circuit will allow users to connect the music source directly to the amplifier. There will be no need for preamp or additional external stereo to mono devices. The PA Series is also equipped with priority input, 24V priority output, bass and triple controls and HiFi style volume control. The series has a wide frequency response of 35Hz- 22KHz, S/N >98 db. The PA Series is available in 240W, 480W and 800W at 100V or four ohms.
OHM | CFU
www.ohm.co.uk
The OHM CFU range of linear amplifiers is ideally suited for installations where high reliability, cost effectiveness and long-life are the main criteria. There are three models in the range with two ohm RMS ratings of 600W, 1,600W and 2,200W per channel. All models have a 100Hz low pass filters and bridging switch, the CFU-A3 delivers 4,400W in bridge mode. Install amplifiers usually spend their life in the dark recesses of the venue, never seen except on rare maintenance occasions and this is where high reliability is essential. However, because of the CFU’s striking appearance, LED ladders, blue illuminated logo, many club installations are mounting the amps for all to see.
OUTLINE | DHD SERIES
www.outline.it
The need for easy portability, and therefore low weight combined with high power, is now met with the new Outline DHD Series D4-3K power amps, with a completely switching output stage. Chief distinguishing features are the flat frequency response irrespective of load impedance, nearly frequency-independent distortion behaviour and very low radiated and conducted EMI. Compared to conventional linear amplifiers, the use of PWM (Pulse Width Modulation) conversion techniques enables unbeatable performance to be achieved as far as power density and efficiency are concerned. The results achieved enable the DHD Series amplifiers to be smaller and about a fifth of the weight of traditional amplifiers of the same power, thus greatly facilitating transport and reducing rack space required. Moreover, with standard music programs, the Outline DHD Series’ very high yield (over 90%) enables to reduce dissipated power to about 1/10 that of an equivalent linear amplifier. The HF conversion circuit used in the Outline DHD Series amplifiers virtually simulates a purely resistive load car- rying out power factor correction and ensuring almost total stabilisation of the power voltage of the output stage, no matter what the mains voltage. This keeps the power amplifier’s performance unchanged, minimising reactive power and harmonic distortion introduced on the current absorbed.
PEAVEY | IPR SERIES
www.peavey.com
Boasting a net weight as low as 7lbs the IPR Series utilises an advanced design that allows the Peavey engineers to dramatically reduce weight while increasing output power, reliability and thermal efficiency. IPR Series amplifiers are designed with a resonant switch-mode power supply and a high-speed Class-D topology that yields the highest audio resolution and efficiency available. The IPR DSP Series amplifiers feature the same power ratings, design and efficiency. Plus a 32-bit processor with a suite of delays and crossovers, pre-pro- grammed loudspeaker settings, stereo / mono operation, lockout and parametric EQ. Plus for the first time in any power amplifier, built-in Waves MaxxBass technology, which uses psycho-acoustics to add more low-end to your system without the need for more power amps, processing or subwoofers. Amps in the IPR DSP line contain presets for Peavey SP, PR, Impulse, SSE, QW, PV®Series loudspeakers and monitors, as well as other commonly used loudspeaker configurations, plus special presets for program music applications such as dance, speech, rock, thump, and loudness.
www.mondodr.com
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