Power Amplifiers

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Bogen PS240 Platinum Series 240W Public Address Amplifier

Bogen PS240 Platinum Series 240W Public Address Amplifier

B&H # BOPS240 MFR # PS240
Key Features
  • 240W RMS Power Rating
  • Supports 8-Ohm or 25/70V Operation
  • 4 x XLR Mic Inputs with Phantom Power
  • 2 x Euroblock Mic In, 2 x Aux In
$89995
In Stock
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Crown Audio XLi 2500 Stereo Power Amplifier

Crown Audio XLi 2500 Stereo Power Amplifier

B&H # CRXLI2500 MFR # XLI2500
Key Features
  • 750W per Channel at 4 Ohms
  • 500W per Channel at 8 Ohms
  • 1500W at 8 Ohms Bridged Mono
  • Stereo/Parallel/Bridge-Mono Mode
$56900
In Stock
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Crown Audio XLS 1002 Stereo Power Amplifier (350W at 4 Ohm)

B&H # CRXLS1002 MFR # XLS1002
Key Features
  • 350W at 4 Ohm Per Channel
  • Band Pass Filter Per Channel
  • Selectable Input Sensitivity
  • Security Settings Disables Menu Buttons
$39900
Reg. $429.00
Save $30.00
In Stock
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Crown Audio XLi 1500 Stereo Power Amplifier

B&H # CRXLI1500 MFR # XLI1500
Key Features
  • 450W per Channel at 4 Ohms
  • 330W per Channel at 8 Ohms
  • 900W at 8 Ohms Bridged Mono
  • Stereo/Parallel/Bridge-Mono Mode
$42900
In Stock
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Crown Audio XLi 800 Stereo Power Amplifier

B&H # CRXLI800 MFR # XLI800
Key Features
  • 300W per Channel at 4 Ohms
  • 200W per Channel at 8 Ohms
  • 600W at 8 Ohms Bridged Mono
  • Stereo/Parallel/Bridge-Mono Mode
$34900
In Stock
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Crown Audio XLS 2502 Stereo Power Amplifier (775W at 4 Ohm)

B&H # CRXLS2502 MFR # XLS2502
Key Features
  • 775W at 4 Ohm Per Channel
  • Band Pass Filter Per Channel
  • Selectable Input Sensitivity
  • Security Settings Disables Menu Buttons
$69900
Reg. $809.00
Save $110.00
In Stock
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QSC SPA2-200 2-Channel Power Amplifier (200W)

B&H # QSSPA2200 MFR # SPA2-200
Key Features
  • Energy Star Qualified
  • Class-D Topology
  • 4 and 8 Ohms + 70/100V Operation
  • Bridgeable Outputs for Higher Power
$82500
In Stock
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Pyle Pro PTA1000 Professional Stereo Power Amplifier (250W/Channel @ 8 Ohms)

B&H # PYPTA1000 MFR # PTA1000
Key Features
  • Rackmount Design
  • Stereo and Bridged Modes
  • XLR and 1/4" Inputs
  • speakON and Binding Post Outputs
$12999
In Stock
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ART SLA-1 100W 2-Channel Amplifier

B&H # ARSLA1 MFR # SLA-1
Key Features
  • Studio Linear Amplifier
  • Low Noise, Discrete Linear Design
  • 100W per Channel (8 Ohms)
  • 260W Bridged Mono (8 Ohms)
$29999
In Stock
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Crown Audio XLi 3500 Stereo Power Amplifier

B&H # CRXLI3500 MFR # XLI3500
Key Features
  • 1350W per Channel at 4 Ohms
  • 1000W per Channel at 8 Ohms
  • 2700W at 8 Ohms Bridged Mono
  • Stereo/Parallel/Bridge-Mono Mode
$90900
In Stock
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QSC GXD 8 Professional 4500W Power Amplifier with DSP

B&H # QSGXD8 MFR # GXD 8
Key Features
  • 4500W Max Power Output
  • Matched for 4 Ohm and 8 Ohm Speakers
  • Efficient Class-D Power Amplifier
  • Built-In DSP Speaker Processor
$1,04999
In Stock
Free Expedited Shipping

Bogen PS600 Platinum Series 600W Public Address Amplifier

B&H # BOPS600 MFR # PS600
Key Features
  • 600W RMS Power Rating
  • Supports 8-Ohm or 25/70V Operation
  • 4 x XLR Mic Inputs with Phantom Power
  • 2 x Euroblock Mic In, 2 x Aux In
$1,05372
In Stock
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ART SLA-4 4-Channel Studio Linear Power Amplifier (100W/Channel @ 8 Ohms)

B&H # ARSLA4 MFR # SLA-4
Key Features
  • 1RU Design
  • Multiple Operating Modes
  • Toroidal Transformer
  • 1/4" and Euroblock Inputs
$45999
In Stock
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Lab.Gruppen 240W Commercial Amplifier

B&H # LACA2401 MFR # CA2401
Key Features
  • For Commercial & Industrial Applications
  • 4/8-Ohm and 70/100V Operation
  • Switchable High-Pass Filter
  • Energy Star Certified
$46900
In Stock
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Crown Audio XLS 1502 Stereo Power Amplifier (525W at 4 Ohm)

B&H # CRXLS1502 MFR # XLS1502
Key Features
  • 525W at 4 Ohm Per Channel
  • Band Pass Filter Per Channel
  • Selectable Input Sensitivity
  • Security Settings Disables Menu Buttons
$49900
Reg. $559.00
Save $60.00
In Stock
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QSC GX3 300-Watt 8-Ohm Power Amplifier

B&H # QSGX3 MFR # GX3
Key Features
  • Optimized for 4- and 8-Ohm Speakers
  • XLR, 1/4" TRS, and Phono Inputs
  • speakON Combo Outputs
  • Subwoofer/Satellite Crossover Built In
$49999
In Stock
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Bogen PS60 Platinum Series 60W Public Address Amplifier

B&H # BOPS60 MFR # PS60
Key Features
  • 60W RMS Power Rating
  • Supports 8-Ohm or 25/70V Operation
  • 4 x XLR Mic Inputs with Phantom Power
  • 2 x Euroblock Mic In, 2 x Aux In
$50495
In Stock
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Crown Audio XLS 2002 Stereo Power Amplifier (650W at 4 Ohm)

B&H # CRXLS2002 MFR # XLS2002
Key Features
  • 650W at 4 Ohm Per Channel
  • Band Pass Filter Per Channel
  • Selectable Input Sensitivity
  • Security Settings Disables Menu Buttons
$59900
Reg. $689.00
Save $90.00
In Stock
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QSC GX5 500-Watt 8-Ohm Power Amplifier

B&H # QSGX5 MFR # GX5
Key Features
  • Optimized for 4- and 8-Ohm Speakers
  • XLR, 1/4" TRS, and Phono Inputs
  • speakON Combo Outputs
  • Subwoofer/Satellite Crossover Built In
$59999
In Stock
Free Expedited Shipping

Bogen PS120 Platinum Series 120W Public Address Amplifier

B&H # BOPS120 MFR # PS120
Key Features
  • 120W RMS Power Rating
  • Supports 8-Ohm or 25/70V Operation
  • 4 x XLR Mic Inputs with Phantom Power
  • 2 x Euroblock Mic In, 2 x Aux In
$63995
In Stock
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QSC RMX850a Power Amplifier (300 W per Channel)

B&H # QSRMX850A MFR # RMX850A
Key Features
  • 300 Watts per Channel 4Ω
  • 830 Watt Bridgeable Mono Mode 4Ω
  • LED Indicators for Power, Signal, Clip
  • Built-In Protection Circuits
$69999
In Stock
Free Expedited Shipping

QSC GXD 4 Professional 1600W Power Amplifier with DSP

B&H # QSGXD4 MFR # GXD 4
Key Features
  • 1600W Max Power Output
  • Matched for 4 Ohm and 8 Ohm Speakers
  • Efficient Class-D Power Amplifier
  • Built-In DSP Speaker Processor
$69999
In Stock
Free Expedited Shipping

QSC RMX1450a Low-Z Power Amplifier (500 W per Channel)

B&H # QSRMX1450A MFR # RMX1450A
Key Features
  • 500 Watts per Channel 4Ω
  • 1400 Watt Bridgeable Mono Mode 4Ω
  • LED Indicators for Power, Signal, Clip
  • Built-In Protection Circuits
$89999
In Stock
Free Expedited Shipping

QSC SPA4-100 4-Channel Power Amplifier (100W)

B&H # QSSPA4100 MFR # SPA4-100
Key Features
  • Energy Star Qualified
  • Class-D Topology
  • 4 and 8 Ohms + 70/100V Operation
  • Bridgeable Outputs for Higher Power
$1,15500
In Stock
Free Expedited Shipping

Crown Audio CDi 2|600 2-Channel DriveCore Series Power Amplifier (600W)

B&H # CRACDI2600 MFR # NCDI2X600-U-US
Key Features
  • DriveCore Technology
  • Remarkable Performance & Reliability
  • Supports HiQnet Audio Architect Software
  • Monitor & Control over Standard TCP/IP
$1,90700
In Stock
Free Expedited Shipping
$3,49900
In Stock
Free Expedited Shipping

Pyle Pro PTA1000BT Professional Stereo Power Amplifier with Bluetooth (500W/Channel @ 8 Ohms)

B&H # PYPTA1000BT MFR # PTA1000BT
Key Features
  • Rackmount Design
  • Stereo and Bridged Modes
  • XLR, 1/4" & Bluetooth Inputs
  • USB Port and SD Card Slot
$12299
In Stock
Free Expedited Shipping

Rolls HR251 2-Channel 50 + 50W Power Amplifier

B&H # ROHR251 MFR # HR251
Key Features
  • Two XLR Inputs
  • Stereo RCA Line Inputs
  • 2 x Speaker Outputs (4 Ohms)
  • Compact Rugged Enclosure
$26900
Special Order
Expected availability: 7-14 Business Days
Free Standard Shipping

Learning About Power Amplifiers

Power amplifiers are essential for raising the magnitude of a given input signal to produce the best audio quality. These signals increase to a level that can drive a high amount of audio output to devices such as speakers, RF transmitters, and headphones.

 

Choosing the Right Amplifier Power

Louder speakers and larger rooms require more power. Both speakers and amps come in a range of power ratings that measure how much power they can churn out. For amps, look out for the RMS power ratings, and for your speakers, check the program power ratings. As a rule of thumb, choose a power amp that can deliver power that's twice the speaker's program power rating. For instance, a live sound guitar speaker with a program power rating of 350 watts requires guitar amplifiers that can produce up to 700 watts of power.


What to Consider in a Power Amp

For crisp and clear audio, getting the right amp for your particular speaker is imperative. Besides the power, look out for a number of other factors.

Channels

You can shop for power sound amplifiers according to the number of channels of your speaker setup. They're available from 1 to 12-channel amps. 8-channel amplifiers are popular with many consumers, as they're optimized for 4 and 8-ohm speakers and come with built-in subwoofer/satellite crossovers that help improve the audio quality.

Headroom

The headroom is the difference between an amplifier's operating level and the maximum level it can pass without any distortion. Since music has wide variations of dynamic range, you'll have frequent power distortion if your amp doesn't have enough headroom. Thus, shop for amplifiers with extra headroom for clean power output. You may also want to go for audio distribution amplifiers to stabilize the signals within the sound system components.

Input/Output Connections

Most stereo power amplifiers come with XLR connectors, but there are multiple connection options available, such as TRS, 1/4-inch, and RCA inputs. Balanced connectors such as XLR cables are more suitable with long cable runs. For shorter cable length applications like home audio, DJ systems, and connections to live sound mixers, RCA connectors are ideal.


Browse B&H Photo and Video's wide variety of rack mount amplifiers and related products, such as headphone amplifiers, to find the right ones for your needs. Choose from a range of amplifier brands, including Bose, QSC, Crown Audio, Pyle Pro, and Yamaha.