A power amplifier was by Lee De Forest in 1912 to amplify low-power audio signals from musical instruments until it is loud enough for loudspeakers. The inputs can also be from other audio sources such as CD or cassette players. Audio power amplifier designs differ on their frequency response, gain, noise, and distortion. Professional power amplifiers can amplify low power audio signals from a range of audio sources until they are loud enough for loudspeakers. Designs differ based on frequency response, gain, noise, and distortion. Your purchase decision should be influenced by your speaker’s program rating, the headroom, the impedance level and the class of operation of the output device as well as the audio quality the price. Let us now dive into recommendations of some of the best power amplifiers currently available.
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Top 10 Best Professional Power Amplifiers In 2021
1. Marantz PM6006 UK Edition
Product Description: The Marantz PM6006 UK Edition is a stereo amplifier.
Quality and Design: It has a solid, robust build.
This stereo amplifier has 45W power with four-line inputs that can be remote controlled and delivers a smooth sound. Its smooth and crisp audio (especially in the midrange aside), it also has a solid build. The only minus is the lack of USB and Bluetooth capabilities. It retails at $699.
2. NAD D3020 V2
Product Description: The NAD D3020V2isa classic amplifier that is a budget alternative to the Marantz PM6006.
Design and Quality: This is portable and easy to use but has a full-bodied sound that is just as enjoyable to listen to.
It has the power of 60W. Also, it can be remote controlled and has Bluetooth and USB capabilities. Moreover, it retails at only $449.
3. Cambridge Audio CXA61
Product Description: Cambridge Audio CXA61 is a power amplifier that gives you detailed audio across a wide range of genres.
Design and Quality: It delivers an impressive sound on most speakers.
It has a power of 60W per channel. Retailing at $999, it has a great build and Bluetooth capabilities.
4. Rega Brio
Product Description: This is an excellently built power amplifier with a superb sense of rhythm.
Design and Quality: For an amplifier that was originally launched in 1991, the latest generation delivers a fluid sound that is precise and detailed.
The Rega Brio has a power of only 50W but has a great frequency response. It retails at $995.
5. Seismic Audio Power Amplifier MBG-4000 – 2 x 500 Watts
Product Description: The MBG-4000 is a top-class power amplifier.
Design and Quality: This is an affordable power amplifier that provides a high-quality sound at great value and also comes with a 1-year warranty.
This professional power amplifier has a stereo and bridge-mono switch, the frequency response of 20Hz to 20 kHz, the input resistance of 20k ohm and XLR and 1/4inch jack connectors.
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6. Rockville RPA9 3000 Watt Amplifier
Product Description: The sixth recommendation on our list is the Rockville RPA9 3000 Watt Amplifier. Coming in first at 3000 watts of peak power, The Rockville RPA9 3000 Watt Amplifier is a two-channel professional amplifier.
Design and Quality: This power amplifier feels substantial and weighty, with knobs that turn smoothly. The quality of the sound is excellent and there is no clipping even when it is quite loud.
It comes with an abridged and stereo output switch which makes it perfect for monitors, subwoofer and speakers. It has a maximum headroom for 4-ohm and 8-Ohm speakers, a frequency response of 20Hz to 20kH, distortion less than 0.03% and the input impedance of 20K ohm balanced and 10K ohm unbalanced.
7. Technical Pro AX2000 2U Professional 2CH Power Amplifier
Product Description: The 7th recommendation on our list is the Technical Pro AX2000 2U Professional 2CH Power Amplifier, at 2000 watts of peak power.
Design and Quality: This professional power amplifier has been built to withstand years of pressure, wear and tear. The Technical Pro AX2000 2U Professional 2CH Power Amplifier gives you a clear and crisp sound output you need. It can be connected to any standard studio or mobile rack.
These amplifiers are easy to connect to any standard equipment because of the RCA connectors (inputs) and the Banana Binding Post (outputs). This also has a frequency response of 20 Hz to 20 KHz and an input Impedance of 10 k ohm unbalanced.
8. Crown Xli1500 Two-Channel Power Amplifier
Product Description: From an industry-leading brand, the latest professional power amplifier Xli150 provides quality power and amplification that is perfect for professional users.
Design and Quality: It has a smart and rugged design. It is equipped with a radio-frequency shield that keeps it safe. It is affordable and reliable as well.
It comes with the ability to operate in stereo, parallel and bridge-mono mode and has user-selectable input sensitivity as well as RCA and XLR inputs.
9. Behringer Europower EP4000 Professional Amplifier
Product Description: This is a powerful and highly portable speaker.
Design and Quality: It has a solid and rather heavy build and is easy to use.
It is known for its high-quality components and thermal and DC overload protection.
10. Mr. DJ PP-3400BT Bass Amplifier
Product Description: This has been rated as the most roadworthy professional power amplifier.
Design and Quality: A splash-resistant front panel is a great design feature of this professional power amplifier.
These professional power amplifiers have inbuilt speakers, Bluetooth connection and can be remote controlled.
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When picking professional power amplifiers to buy, several factors should influence you to purchase decisions such as the amount of wattage, headroom and impedance level as well as your speaker’s program rating and the class of operation of the output device. They are used in public address systems, sound reinforcement systems, and domestic systems. There are many great power amplifiers on the market with different capabilities and different price points. This article should help introduce you to the world of professional power amplifiers. We hope you now know enough to dive in.