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Crown Audio CDi DriveCore 4-Ch 600W Power Amplifier, Analog + BLU link Input

SKU: CRCDI4600BLMFR: CDI 4|600BL

600W Power Amplifier: High power output, 4 channels.
DriveCore Amp: Ensures reliable, clean sound quality.
Versatile Power Amp: 2-16 Ohms; 70Vrms and 100Vrms.
Pro Power Amplifier: Built-in DSP, 96kHz/32-bit.
Crown Audio Amp: >104dB signal-to-noise ratio.

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Crown Audio LA4-D DSi 2.0 Series Next-Generation Amplifier with Dante

SKU: CRLA4DNPMFR: LA4-D-NP

High power output: 2200W at 4 Ohms for pristine audio.
Low THD: 0.0035% ensures clear, distortion-free sound.
Signal-to-noise ratio: >104dB for superior audio clarity.
Input impedance: 70k Ohms balanced for optimal signal.
Damping factor: >1000 ensures tight, controlled bass.

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Dynacord SR20TGX-US Amplifier System Rack with 3x TGX20-US 12-Channel Amplifiers

SKU: DYSR20TGXUSMFR: F.01U.341.499

High output power: Delivers pristine audio.
Low distortion ensures clear sound quality.
Signal-to-noise ratio: Exceptional audio clarity.
Reliable protection circuits ensure amplifier longevity.
Connectivity options: Versatile for any setup.

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Ashly FA Series FA125.4 4-Channel 125W Compact Class D Power Amplifier

SKU: ASFA1254120VMFR: FA125.4-120V-U

4-Channel Power Amplifier: Precise audio control.
125W Power Output: Robust sound reproduction.
Low THD: Ensures high-fidelity audio clarity.
High Signal-to-Noise Ratio: Clean, crisp audio.
Comprehensive Protection Circuits: Reliable operation.

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Audio Amplifiers to Boost Your Sound

If you’re connecting anything from an instrument or a smartphone to a set of external speakers, you may need an amplifier. While most of us think of “amps” as something to plug a guitar into, there are also many different types of amps for stereo systems, PAs, and more. Check out Adorama’s full selection here from brands like Crown Audio, Behringer, TOA Electronics and more.

What is an amplifier?

When an electrical signal is sent from an instrument, phone, microphone, or phonograph (remember those?), it is weak and nowhere near powerful enough to drive 15” subwoofers. You need a device to “amplify” this signal with some serious wattage, technically called a “power amp.”

Most instrument amps also have a built-in “preamp” in addition to their power amps. Preamps add effects and tonal controls to electrical signals before they are sent to the power amp.

Do I need an amp to play music at home?

If you just want to play tunes from a phone or a laptop, you may not need a specific amp. Many speakers, including Bluetooth speakers, are already “powered,” meaning they’ve got small built-in audio amplifiers. However, if your speakers are unpowered (i.e., they can’t plug into a wall outlet), you’ll need a power amp. Most high-end stereo systems utilize separate power amps.

Home audio systems do not require preamps like instruments do. Still, you may want to invest in a mixer or multi-band graphic equalizer to fine-tune your levels before they hit the power amp. Be aware that if you’re playing music from a computer, it may already have an EQ feature built into its software.

Audio amplifier specifics

We’ve got a huge variety of audio amplifiers at Adorama, from tiny headphone amps to those capable of delivering hundreds of watts. You’ll want your power amp’s wattage to match the power rating of your speakers. If it is too low, you won’t get the most out of your speakers. Even worse, if it’s too high, you could blow them out. If your power amp has selectable resistance levels in ohms (usually 4, 8, or 16), make sure they sync with your speakers as well.

Amps can be powered either by solid-state transistors or by vacuum tubes. As with guitar amps, tube-powered models for stereos are pricier and require more maintenance, but audiophiles love their warm, vintage sound.

No matter what kind of amp you decide is right for you, make sure you’ve got enough cables and adapters to set everything up.