Ex-movie theater projectionist Steve Guttenberg has also worked as a high-end audio salesman, and as a record producer. Steve reviewed audio products for CNET and worked as a freelance writer for ...

Integration of audio into portable devices such as cellphones, DVD players, laptop computer and gaming devices has increased to the point where designers are faced with squeezing more and more ...

If you use a pair of portable headphones, or even budget headphones, you could probably do with a decent amplifier. But if your favorite way of listening involves music on the go, it’s got to go with ...

Questyle’s Sigma Pro ($899) and Sigma ($599) portable DAC with headphone amplifiers offer Current Mode Amplification, Bluetooth LE, and LDAC. Previewed at CanJam London 2025, the new Questyle Sigma ...

Monoprice’s Monolith Portable Headphone Amplifier and DAC will bring out the best in your headphones, but the unit’s form factor, analog input, and smudge-prone surface hold it back from earning ...