Headphone amplifiers are the small versions of power amplifiers specially made to increase the audio signals coming from headphones. They are commonly used by professional sound and audio engineers who need to drive more than one pair of headphones simultaneously. They can produce 10 to 100 megawatts of power enough to drive one to 10 headphones.
Most headphone amplifiers are powered by batteries since they are commonly used in conveyable applications. They can have digitals inputs such as co-axial and optical for connecting to most audio devices with digital outputs, and USB connectors for hooking up to the USB audio-out ports of computers.
Four-channel headphone amplifiers consist of four separate stereo inputs, each with its own volume control. They can be used with up to eight headphones. They have input source switches that allow easy switching between the line and the headphones. Some models have main volume controls for total volume adjustment. The more sophisticated types have tone channel controls for producing headphone mixes. 8-channel Headphone Amplifiers
Eight-channel headphone amplifiers consist of eight separate stereo amplifier sections arranged in a single rack space. They have two major inputs with each channel capable of accommodating two headphone outputs. They offer maximum sound quality at maximum volumes and are ideal for studio and stage use. Some models have stereo and mono switches for each channel for added flexibility.
LED indicators: To further monitor your headphone amplifier’s performance, choose one with a LED indicator composed of several segments that show each channel’s total output.
Connectors: For extra mobility and flexibility, choose a headphone amplifier built with direct input connectors, allowing you to connect any audio source to any of your amplifier’s channels.
Use: For professional use in theaters, stages, and studios, look for a multi-channel headphone amplifier capable of driving up to ten headphones.
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