Power Amplifiers

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Power Amplifiers

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Studiomaster HX2-300 2x 225W at 4 Ohms 1U Digital Power Amplifier

SKU: STHX2300MFR: HX2-300

High Power Output: 2x225W at 4 Ohms for robust sound.
Low Distortion: Ensures clean audio, THD+N at 0.02%.
Reliable Performance: Overload/thermal/DC output protection.
Versatile Input Options: Balanced and unbalanced inputs.
Compact Design: 1U rackmount for efficient use of space.

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Studiomaster QX2-2000 2x 1700W at 4 Ohms 1U Digital Power Amplifier

SKU: STQX22000MFR: QX2-2000

High power output: 2x1700W at 4 Ohms for pro audio.
Exceptional signal-to-noise ratio: >105dB for clear sound.
Low distortion: 0.01% THD+N ensures pristine audio quality.
Input/output flexibility: Multiple options for connectivity.
Reliable protection: Safeguards against overload & thermal issues.

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Kramer Electronics 900N Stereo Audio Power Amplifier

SKU: KR900NMFR: 90-70154090

8.4 Watts per Channel Power Amplifier Output
Low THD+Noise ensures pristine audio fidelity.
High Signal-to-Noise Ratio: 55dB performance.
Stereo Power Amplifier with balanced inputs.
Compact Amplifier: Perfect for discreet installs.

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Crown Audio CT475 4-Channel Rackmount Power Amplifier

SKU: CRWCT475MFR: NCT475A-U-US

75W Power Amplifier: Clear audio at 8 Ohms.
Four Channel Power Amp: Flexible audio routing.
Wide 20Hz-20kHz Frequency Response: Pristine sound.
Low THD: <0.05% for clean power amplification.
High SNR: 110dB signal-to-noise power ratio.

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Audio Power Amplifiers

Audio power amplifiers are the central driving force of any public address (PA) system. They take lower-level electrical signals from instruments, mics, and audio players by way of a mixing board, and then amplify those signals into the hundreds or thousands of electrical watts that are required to physically power audio speakers.

Compared to the complex controls of a mixing board, power amps are fairly simple. They usually consist of only a few knobs and several input/output jacks. This does not mean that all power amps are the same. Check out the best power amp for your own audio system here.

What kind of audio power amplifier do I need?

The most important factors in choosing a power amp are the size of your venue and the number of speakers. A two-speaker setup is fine with a single power amp that is between 200-500 watts, or even a basic power amp/mixer combo by a quality affordable brand like Behringer or Crown Audio.

If you’re going to use lots of speakers at big venues—subwoofers, monitors, and spread-out locations—you’ll need an audio power amplifier of more than 1,000 watts. Large churches or ballrooms with permanent PAs frequently use multiple power amps.

How do I match my power amp to my speakers?

You do not want your power amp’s wattage to be much more or less than the combined watt rating of all your speakers. A 250w power amp driving four 100w speakers will sound weak. A 750w amp going into two 100w speakers will sound great at lower volumes, but it will start to “clip” or distort at higher volumes, possibly damaging speakers.

Speakers are also rated in ohms (Ω), for how much they resist power amps’ wattage. The lower the ohms, the higher the watts a speaker is capable of handling. Most audio power amplifiers have safeguards to prevent damage caused by mismatched ohm impedance, but you never want to send a low ohm output to a higher ohm speaker.

Can I use an audio power amplifier for my home stereo?

Power amps are like the big brothers of the receivers that you use for your home entertainment setup. They’re typically overkill at home. Plus, they can be noisy and interfere with other electronics. However, top-shelf brands like Musical Fidelity make home receivers that can double as PA power amps.

Studiomaster HX2-300 2x 225W at 4 Ohms 1U Digital Power Amplifier

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Studiomaster QX2-2000 2x 1700W at 4 Ohms 1U Digital Power Amplifier

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Kramer Electronics 900N Stereo Audio Power Amplifier

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Crown Audio CT475 4-Channel Rackmount Power Amplifier

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Audio Power Amplifiers

What kind of audio power amplifier do I need?

How do I match my power amp to my speakers?

Can I use an audio power amplifier for my home stereo?

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