Measuring an op amp’s THD(total harmonic distortion) at frequenciesbelow 100 kHz is problematicbecause modern amplifiers have a THDrating that is much lower than that ofmost test equipment. The ...

As we’ve traced our no-nonsense path through the world of Hi-Fi audio, we’ve started with the listener, understood the limitations of the human ear, and thence proceeded to the loudspeaker. We’ve ...

Q: A quick question. Isn't THD important in the sound quality of a receiver? The lower the better? Also, when you see the 20 - 20,000 Hz versus 40 - 20,000 Hz, the higher number 40 will affect the ...

Setting a benchmark for performance, the LM4562 audio op amp specifies a THD+N figure of 0.00003%. The device combines a 6-MHz, unity-gain bandwidth operational amplifier with a proprietary ...

A critical measure for all audio components is distortion, typically specified as total harmonic distortion (THD) or total harmonic distortion + noise (THD+N). THD is defined as: ... THD+N is the rms ...

International Solid-State Circuits Conference in San Francisco always seems to make space for audio amplifier developments, and this year is no exception, with some extraordinary distortion and noise ...

Zetex is claiming sub-0.005 per cent THD, a dynamic range of 115dB and damping factor better than 2,000 for its 250W ‘Class Z’ digital audio amplifier, demonstrated at the Consumer Electronics Show in ...

Review: The Denon POA-A1HDCI 10 channel audio amplifier offers a slew of connectivity features and power few multi-channel amps can match. Its rated at 150wpx x 10 but can be bridged for double power.