https://www.informedlistening.com/categories/amplifiers/Recent content in Amplifiers on Informed ListeningHugoen-IEInformed ListeningMon, 20 Jul 2026 00:00:00 +0000https://www.informedlistening.com/reviews/aperture-audio-hpa-1/Sat, 18 Jul 2026 00:00:00 +0000https://www.informedlistening.com/reviews/aperture-audio-hpa-1/A composed, technically capable desktop amplifier with excellent ergonomics and a few deliberately conservative choices.https://www.informedlistening.com/articles/evaluate-headphone-amplifier/Fri, 17 Jul 2026 00:00:00 +0000https://www.informedlistening.com/articles/evaluate-headphone-amplifier/Maximum power is one boundary condition. Gain structure, noise, output impedance, and usable control range often matter more.https://www.informedlistening.com/articles/misleading-amplifier-power/Fri, 26 Jun 2026 00:00:00 +0000https://www.informedlistening.com/articles/misleading-amplifier-power/A power figure without load, bandwidth, channel count, and distortion threshold is closer to marketing than evidence.https://www.informedlistening.com/articles/output-impedance-explained/Fri, 29 May 2026 00:00:00 +0000https://www.informedlistening.com/articles/output-impedance-explained/Output impedance is a system interaction. Its importance depends on the headphone’s own impedance curve.