Dukane 1A4xxx overview
Dukane 1A4xxx Series Power Amplifiers 1A4060, 1A4125, 1A4250 Power Amplifiers Broad frequency response Low distortion Dual independent electronic protection cir...
Product details
Manufactured byDukane
Product groupPower Sources
DescriptionDukane 1A4xxx Series Power Amplifiers
Standard Features1A4060, 1A4125, 1A4250 Power Amplifiers Broad frequency response Low distortion Dual independent electronic protection circuits Self-resetting heat sink thermal circuit breaker (1A4060, 1A4125) Self-resetting power transformer thermal circuit breaker (1A4060, 1A4125) Self-resetting thermal cutouts (1A4250)1B3125, 1B3250 Power Amplifiers UL 1711 Listed and UL 813 Listed Patented 24Vdc Battery Backup Broad Frequency Response Low Distortion Thermal Circuit Breaker Electronic Overload Protection1A881 Remote Preamplifier Excellent frequency response Less than one percent distortion, 60 to 20,000Hz at 2-volt output +8dBm across 600 Ohm line3A230 Bridging Transformer Excellent frequency response Less than 0.5 percent distortion, 20 to 20,000Hz
Overview1A4060, 1A4125, and 1A4250 Power AmplifiersThe Edwards Model 1A4xxx Power Amplifiers are rated at 60, 125, or 250 watts (rms), depending on the model. They mount in a standard 19-inch (48.3 cm) wide equipment rack and can be shipped mounted in a rack. These amplifiers can be used in sound reinforcement, general paging, and schoolcommunication systems applications. They are UL 813 listed.1B3125, 1B3250 Power AmplifiersThe Edwards Model 1B3125 and 1B3250 Power Amplifiers provide continuous 125- or 250-watt output with the ability to automatically switch to battery operation in the event of a line voltage reduction or power failure. The patented circuitry can switch instantly in and out of battery operation and still maintain its stateof-the-art performance.1A881 Remote PreamplifierThe Edwards Model 1A881 Remote Preamplifier is an externally powered single microphone preamplifier designed to provide a microphone input and control at locations remote from the main amplifier. Model 1A881 can also be used to supply a balanced or single-ended 600 ohm line. The DC voltage required to operate the preamplifier can be supplied over one twisted pair length as long as the voltage does not drop below 18 volts. The applications for the Model 1A881 are practically unlimited, and this unit will solve many installation problems by eliminating a bulky self-powered unit where a single microphone source is required.3A230 Bridging TransformerThe Edwards Model 3A230 Bridging Transformer has a wide frequency range, low distortion, and minimal insertion loss. Model 3A230 is a high-impedance bridging transformer used primarily for equipment isolation.
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Power Sources
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