An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.
Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.
Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.
Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
1200W RMS Class D Venue Series 4-Channel Power Amplifier
• Venue Series 4-Channel Class D Power Amplifier
• Power RMS @ 4 ohm: 200 watts x 4 channel
• Power RMS @ 2 ohm: 300 watts x 4 channel
• Cooling fan for cooling system
• Venue Series 4-Channel Class D Power Amplifier
• Power RMS @ 4 ohm: 200 watts x 4 channel
• Power RMS @ 2 ohm: 300 watts x 4 channel
• Cooling fan for cooling system
1200W RMS Class D Venue Series 4-Channel Power Amplifier with Enclosure
• Venue Series 4-Channel Class D Power Amplifier
• Includes VS-LS-ENC landscape enclosure
• Power RMS @ 4 ohm: 200 watts x 4 channel
• Power RMS @ 2 ohm: 300 watts x 4 channel
• Cooling fan for cooling system
• Venue Series 4-Channel Class D Power Amplifier
• Includes VS-LS-ENC landscape enclosure
• Power RMS @ 4 ohm: 200 watts x 4 channel
• Power RMS @ 2 ohm: 300 watts x 4 channel
• Cooling fan for cooling system
Everything you need for live sound reinforcement can be found right here. All the equipment in the Live Sound category is designed to help you put on the best show possible. Sonic Electronix has been outfitting DJs, sound engineers, and bands with their gear for years.
Browse our extensive catalog of live sound equipment here. Make sure to check out our Live Sound Mixers. These mixers are specifically designed for proper sound processing at live shows and events. Power amplifiers are often rack-mountable and designed to give your speakers the appropriate amount of power. We carry amplifiers with a wide range of power output ratings.
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