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Shure FP22 Headphone Amplifier

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Shure FP22 Headphone Amplifier

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Description

The FP22 is a battery-powered stereo headphone amplifier that provides headphone feeds from any audio input source. It has the unique capability of monitoring mono, stereo and mixed mono and stereo inputs. The FP22 monitors and combines these signals in the headphones without affecting the original signal. Stereo or mono headphone outputs appear on 1/4-inch phone or mini 3.5 mm stereo jacks. The FP22 can drive headphones to very loud levels. It is ideal for anyone in the broadcasting, sound reinforcement or audio recording fields who needs a flexible, high–quality headphone monitor. Read more

Features

  • Exceptionally wide frequency response and dynamic range
  • High-impedance bridging inputs do not load signal sources
  • Capable of mixing mono and stereo inputs in headphone outputs
  • Complete user control of headphone volume
  • Loopthrough 1/4-inch stereo phone jacks (can be internally switched to become separate left and right inputs)
  • 30 dB pad for stereo line input to accommodate a wide range of line level sources
  • Balanced loopthrough XLR connectors switchable from mic to line level
  • Separate XLR volume control on pull-out control knob

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The FP22 is a battery-powered stereo headphone amplifier that provides headphone feeds from any audio input source. It has the unique capability of monitoring mono, stereo and mixed mono and stereo inputs. The FP22 monitors and combines these signals in the headphones without affecting the original signal. Stereo or mono headphone outputs appear on 1/4-inch phone or mini 3.5 mm stereo jacks. The FP22 can drive headphones to very loud levels. It is ideal for anyone in the broadcasting, sound reinforcement or audio recording fields who needs a flexible, high–quality headphone monitor. Read more

Features

  • Exceptionally wide frequency response and dynamic range
  • High-impedance bridging inputs do not load signal sources
  • Capable of mixing mono and stereo inputs in headphone outputs
  • Complete user control of headphone volume
  • Loopthrough 1/4-inch stereo phone jacks (can be internally switched to become separate left and right inputs)
  • 30 dB pad for stereo line input to accommodate a wide range of line level sources
  • Balanced loopthrough XLR connectors switchable from mic to line level
  • Separate XLR volume control on pull-out control knob

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About the Shure FP22 Headphone Amplifier

The Shure FP22 is a professional-grade stereo headphone amplifier designed for rugged touring, broadcast, and studio applications where reliable, high-power monitoring is essential. Housed in a durable, compact metal casing, this unit is engineered to provide clean, transparent amplification for multiple listeners simultaneously, making it ideal for use in recording studio control rooms, on-stage monitor mix positions, or in broadcast production suites. The amplifier accepts a standard stereo line-level input and distributes it to two separate stereo headphone outputs, each with its own independent volume control. This allows two engineers, musicians, or producers to listen to the same source material at their preferred listening levels without compromising signal integrity or introducing crosstalk.

Audio performance is characterized by its low distortion and wide frequency response, ensuring that the amplified signal is an accurate representation of the source. The FP22 is capable of driving a wide range of headphone impedances with ample headroom, delivering clear and dynamic audio even with high-impedance studio headphones. Its robust construction includes high-quality components and metal 1/4-inch headphone jacks designed to withstand the physical demands of constant plugging and unplugging in professional environments. The simple, intuitive layout features only the essential controls, minimizing the potential for error during high-pressure sessions.

The unit is powered by a standard external power supply, and its small footprint allows for flexible placement on crowded console meter bridges, in portable racks, or on desktop setups. The Shure FP22 exemplifies a no-frills, function-over-form philosophy, providing a critical monitoring link that is both sonically transparent and built to last. It serves as a trusted, straightforward solution for professional audio environments where the priority is delivering uncolored, powerful audio to headphones with absolute reliability and independent level control for multiple users.

Key Features

  • Exceptionally wide frequency response and dynamic range
  • High-impedance bridging inputs do not load signal sources
  • Capable of mixing mono and stereo inputs in headphone outputs
  • Complete user control of headphone volume
  • Loopthrough 1/4-inch stereo phone jacks (can be internally switched to become separate left and right inputs)
  • 30 dB pad for stereo line input to accommodate a wide range of line level sources
  • Balanced loopthrough XLR connectors switchable from mic to line level
  • Separate XLR volume control on pull-out control knob

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Shure FP22 Headphone Amplifier Specs

Amplifier Configuration
Channels
Stereo
Independent Outputs
2
Volume Control
Dual Independent
Audio Performance
Frequency Response
10 Hz - 30 kHz
Total Harmonic Distortion
<0.01%
Load Impedance
16 to 600 Ohms
Connectivity
Input Connector
1/4" TRS Stereo
Output Connectors
2x 1/4" TRS
Power Connector
DC Jack
Physical & Build
Housing Material
Metal
Form Factor
Compact Desktop
Mounting Options
Non-Rack
Power Requirements
Power Supply
External AC Adapter
Operating Voltage
12-18V DC

Key Features

  • Exceptionally wide frequency response and dynamic range
  • High-impedance bridging inputs do not load signal sources
  • Capable of mixing mono and stereo inputs in headphone outputs
  • Complete user control of headphone volume
  • Loopthrough 1/4-inch stereo phone jacks (can be internally switched to become separate left and right inputs)
  • 30 dB pad for stereo line input to accommodate a wide range of line level sources
  • Balanced loopthrough XLR connectors switchable from mic to line level
  • Separate XLR volume control on pull-out control knob

Already own this item and want to sell it?

Click here to sell your item

FAQs about Shure FP22 Headphone Amplifier

What is the Shure FP22 primarily used for?

The Shure FP22 is a rugged, portable headphone amplifier designed for broadcast, field recording, and sound reinforcement monitoring. It allows users to monitor audio feeds, test lines, or create localized in-ear mixes without interrupting the original signal flow.

How is the FP22 powered?

It operates on a single standard 9-volt alkaline battery or an external 12 to 24 Vdc power supply. A red LED indicator illuminates when the unit is powered on.

What is the typical battery life?

Under normal operating conditions, a standard 9V alkaline battery provides approximately 15 hours of continuous operation. Actual run time will vary depending on listening volume and headphone impedance.

What audio inputs and outputs are available?

The unit features balanced XLR inputs (switchable between mic and line level) and 1/4-inch stereo phone jacks. For headphones, it includes both 1/4-inch (6.35 mm) and 3.5 mm stereo output jacks.

What does the loopthrough feature do?

Loopthrough allows audio signals to pass straight through the unit via dedicated XLR and 1/4-inch output jacks. Because the unit uses high-impedance bridging inputs, you can tap into and monitor an active signal line without degrading or loading the source.

Can it mix a mono mic signal and a stereo source together?

Yes, the FP22 has the unique ability to monitor and blend mono XLR and stereo line inputs simultaneously in your headphones. A pull-out volume knob allows you to balance the mono feed independently against the master stereo volume.

Can multiple people listen at the same time?

Yes, the FP22 provides multiple headphone jacks (two 1/4-inch and two 3.5 mm connectors) that can drive headphones concurrently. It has high output capability to drive demanding or low-efficiency headphones to clear, audible levels.

Does it accommodate high-output, line-level signals?

Yes, it includes a switchable 30 dB pad on the stereo line input. This prevents input clipping and distortion when connecting to hot mixer outputs or professional line-level gear.

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