The 6J2 is wired as a triode, and because a common-cathode circuit is designed to drive a high impedance, it’s safe to assume this won’t be a very good headphone amplifier. It’s a simple ...

The amplifier in this case is based upon the CMoy, a common headphone amp design ... create her own horizontal and vertical deflection circuits. Horizontal scan is created by a 555 timer ...

Next, I measure each amp’s output impedance, a resistance added as a primitive way to protect against short circuits and big jumps in volume when you swap headphones. Headphone amps with high ...

The TEAC AP-507 joins this premium series that aims to deliver high-quality performance from compact products that are ...

A headphone amplifier could be the difference between a good headphone performance and a great one. You can of course plug wired headphones into a laptop or phone, a portable hi-res player (better) or ...

With access to 100,00 tones and cable-free playing, the firm is aiming to take headphone amp technology to new heights ...

this affordable headphone amp features both channels of the AC30 amp. Normal delivers crystal clear cleans with a more open ...

Then there is the Full Score One headphone amplifier we have on test here ... The initials stand for True Transient Technology, and it is a proprietary circuit that claims to improve the Full Score ...

FiiO K17 is a cutting-edge desktop DAC and headphone amplifier designed for audiophiles ... Its fully discrete Class AB transistor amplification circuit, equipped with ON Semiconductor’s ...