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Friday, October 14, 2011
PSW Staff
10/14/11 12:09 PM,
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Powersoft is now shipping the new 2 and 4-channel M Series DSP+ETH power amplifiers outfitted with powerful control and monitoring capabilities. The M Series DSP+ETH models are available in three 2-channel (M30D DSP+ETH, M20D DSP+ETH, M14D DSP+ETH) and two 4-channel (M50Q DSP+ETH, M28Q DSP+ETH) versions. Both the 2 and 4-channel units provide two or four inputs and outputs respectively. In addition, each channel offers five bi-quad filters for system equalization, two crossovers, eight bi-quad filters, and RMS and peak limiters…
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Tuesday, September 13, 2011
PSW Staff
09/13/11 10:50 AM,
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At PLASA 2011, Crown Audio announced the introduction of its PIP-BLU Programmable Input Processor (PIP) card for the Crown CTs Series power amplifiers. The PIP-BLU adds BSS Audio Soundweb London digital audio bus functionality to CTs Series amplifiers, offering a simple, cost-effective way to get digital audio all the way to the amplifiers. “The PIP-BLU adds BSS Audio’s Soundweb London digital audio bus to Crown’s popular CTs Series amplifiers, without having to use additional network switches. This makes installation much…
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Monday, September 12, 2011
PSW Staff
09/12/11 09:58 AM,
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The new JBL Professional CSA-2120, debuting at PLASA 2011 in London, is a 2-channel power amplifier providing simple front-end amplification and a switch mode universal power supply. An auto-standby mode allows the amplifier to save energy by disabling the amplifier pulse width modulation generator when there is no input signal. The CSA-2120 also features thermal and low-voltage auto protection. The amplifier includes two optional accessories, a mounting kit and transformer module. The mount kit allows for installation into a cabinet…
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Wednesday, September 07, 2011
PSW Staff
09/07/11 08:06 AM,
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The LA Rising festival hosted more than 60,000 people and featuring a rare appearance by Rage Against the Machine in the band’s only concert of the year to date. Held in late July at the Los Angeles Memorial Coliseum, the festival also featured performances by Muse, Rise Against, Lauryn Hill, Immortal Technique and El Gran Silencio. Sound Image of Escondido, CA designed and deployed the sound system under the direction of director of touring Mike Sprague. The system included 132…
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Wednesday, July 20, 2011
Bruce Bartlett
07/20/11 09:11 AM,
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As audio professionals, the more we understand what’s under the hood of modern power amplifiers, the better we can make a wise buying decision. What are the main sections or parts of a power amp? Every power amplifier includes a power supply, an input stage, and an output stage. Most amps also have protection mechanisms; some have DSP, and a few have networking capability. Let’s explain each feature… Power Supply Basically, a power amplifier uses the input signal to modulate…
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Wednesday, June 22, 2011
PSW Staff
06/22/11 04:30 PM,
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Powersoft has announced the introduction of M Series DSP+ETH power amplifiers outfitted with 24-bit/48 kHz AD/DA converters with 56-bit for internal processing. With two inputs and outputs each for the 2-channel version and four inputs and outputs each for the 4-channel version, the system offers per channel five bi-quad filters for system equalization, eliminating the need for outboard equalizers, plus two crossovers and eight bi-quad filters. Each channel has dual dynamic processors with arbitrary input/output curve and adjustable time constants.…
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Tuesday, June 21, 2011
Mark Frink
06/21/11 07:44 AM,
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Most modern power amplifier designs have abandoned traditional “linear” power transformer-based supplies in favor of digital switching supplies, shedding about half their weight in the process, getting into the range of 10 kilos or 22 pounds. Nearly all amps are two “rack spaces” high for a total of 3.5 inches in a standard 19-inch wide equipment rack, with depths ranging from roughly 10 to 20 inches. Various circuit designs have emerged over the years. Class AB designs provide low distortion…
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Sunday, June 19, 2011
PSW Staff
06/19/11 09:37 AM,
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Crest Audio has introduced the CKd Series of multi-channel, networkable, intelligent power amplifiers, which combine the power supply design of the Crest Audio Pro 200 with NexSys networking functionality and a lightweight class D topology. The design centers around an high-efficiency amplifier output circuit which reduces weight while increasing output power, reliability and thermal efficiency. The CKd Series offers four multi-channel models. The CKd 1208 and CKd 1204 provide 1,250 watts per channel in eight and four channels, respectively, while…
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Thursday, June 02, 2011
Live Sound Staff
06/02/11 09:06 AM,
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Until fairly recently, the audio power amplifier was almost as synonymous for excessive heat and weight as for its primary application. This reputation was the result of early inefficient output stages. Early designs dissipated most of the power drawn from the wall as heat, which then had to be sucked away from internal electronics with large metal heat sinks. Amplifiers have never enjoyed a reputation for being particularly sexy, being largely black boxes sporting a couple of big rotary dials…
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Wednesday, June 01, 2011
PSW Staff
06/01/11 02:45 PM,
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SpeakerPower has introduced the SP1-4000 Torpedo, a plate power amplifier for loudspeakers and subwoofers rated at 4000 watts into 2 ohms from a package weighing in at just 7 pounds. The SP1-4000 Torpedo utilizes the latest generation power MOSFET transistors and a highly optimized output stage for over 90 percent efficiency, providing quiet fan-less operation up to extremely high power levels. A single unit has the ability to drive up to four woofers to their limits while staying cool and…
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