Katz's Corner

Nelson Pass's Lab has produced an impeccable headphone amplifier with more than enough power, that's quiet, solid, and very clean. Several other reviewers have reflected on this excellent amplifier, but I want to weigh in with my unique sonic perspective and also measurements of its performance.

May I have a drumroll, please! Here is the expanded amplifier measurement chart, presenting the essential measurements in a way that consumers can actually use, without forcing them to become engineers. At first it appears to be a daunting looking chart, but consumers will be presented with only a few of these measurements.

These specifications confuse consumers, who would be forced to use logarithms and equations to answer the basic questions. We need to make headphone sensitivity and amplifier level specs more user-friendly, useable, interchangeable and effective. So I think it's high time to ditch both sensitivity approaches, and we can do better than both Sennheiser and the IEC if we start thinking outside the box!

Today I'd like to discuss what I mean by sonic perfection or sonic neutrality. Most audiophiles have observed that excellent playback systems of different manufacturers can sound radically different! Even the most accurate loudspeakers are subtly voiced and are different sounding. But how can there be more than one "right"? Philosophically speaking, two different-sounding playback systems can't both be "right": one of them must be correct and the other must be incorrect! Or maybe both are wrong!

It’s nice to hear different listeners’ perspectives: Each listener brings something different to the table. I learned a lot about how different people perceive sound and their preferences when putting together this post about experienced listeners listening. Come enjoy our quintet of expert listeners' take on the Audeze LCD-4 vs. the Focal Utopia.

This kind of performance leads us to this question: Can a pair of state-of-the-art loudspeakers placed in the far field of a room sound as transparent, defined, impacting and pure as the world’s best headphones? These Dyns give my Stax 007 MkII headphones a good run for their money. The Stax are driven by a KGSS amplifier. And what about dynamic headphones? I upped my game here, selling my Audeze LCD-X to invest in a pair of LCD4’s. And I borrowed a Deckard headphone amp on reviewer’s loan. No slouches here!

Hooo boy! Bob pulls out all the stops in his latest episode.

This is a little treasure trove of incisive opinion on a bunch of pretty darn good $150-$500 full-size sealed headphones.