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Low-impedance headphones are in the range 16 to 32 ohms and high-impedance headphones are about 100–600 ohms. As the impedance of a pair of headphones increases, more voltage (at a given current) is required to drive it, and the loudness of the headphones for a given voltage decreases. In recent years, impedance of newer headphones has ...
The impedance of a line input is typically around 10 kΩ. When driven by a line output's usual low impedance of 100 to 600 ohms, this forms a "bridging" connection in which most of the voltage generated by the source (the output) is dropped across the load (the input), and minimal current flows due to the load's relatively high impedance.
For example, a 32 Ω headphone driven by a headphone amp with a <1 Ω output impedance would have a damping factor of >32, whereas the same headphone driven with an iPod touch 3G (7 Ω output impedance) [5] would have a damping factor of just 4.6. If the 120 ohms recommendation is applied, the damping factor would be an unacceptably low 0.26 ...
From budget models to high-end, JBL offers over-the-ear headphones that fit everyone's needs. (Photo: Amazon) At the risk of stating the obvious, JBL is one of the most well-known brands in audio ...
Amazon continues to have some of the best deals on tech, especially in the audio department. Sony’s noise-cancelling headphones are currently 35% off, slashing the already great $150 price tag ...
The top-end Elite Pro model was aimed at musicians, bundled with the X-Fi external I/O box (offering phono with preamp inputs for turntables, high-impedance input for guitars, 1 ⁄ 4 inch mic input, headphone output, line-in, and full size MIDI I/O, as well as optical and RCA Coaxial digital inputs and outputs), and remote control.