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SpeakerPower Unveils SP1-4000 Torpedo Plate Amplifier For Self-Powered Loudspeakers & Subwoofers

Utilizes the latest generation power MOSFET transistors and a highly optimized output stage for over 90 percent efficiency

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 maximizing the AC power available.

Innovative post-filter feedback class-D topology helps to deliver ruler-flat frequency response, low distortion and very high damping across the whole audio band. Full featured protection includes DC, overload, low impedance, shorts, under/overvoltage, overheating, and more.

The SP1-4000 Torpedo has very low idle power consumption (

<20 watts typical), which saves electricity in comparison with many pro audio and class AB amplifiers.

It includes gentle soft-start and long-term power limiter to reduce the chances of tripping breakers, and can do well in excess of 1/3 power with no time limit (convection cooling).

Available now, the SP1-4000 Torpedo, as well as the model SP1-2400 (2400 watts at 4 ohms, 6 pounds), are manufactured in Santa Ana, CA by SpeakerPower Inc.

SpeakerPower Website

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dBTechnologies is an Italian-based speaker manufacturer, leading in the Touring & Live sound market by providing innovative audio solutions. Their flagship ViO series is made up of an entirely active/self-powered series of loudspeakers. The dBT lineup also includes passive loudspeakers, software, and amplifiers, all delivering uncompromising performance. dBTechnologies speakers headline some of the largest festivals and concerts worldwide, setting standards in both Live and Installation markets.