Which components knocked you out on first listen?

I recall my first exposure to the Ohm F as well (at tech Hi Fi in Boston)...incredibly powerful.

Koss ESP-9 electrostatic headphones.

Magnapan Tympani 1Ds, driven by Audio Research electronics....one of the first true high end systems I ever heard (many thanks to Lyric in White Plains for indulging a poor college student!)

The first time I heard Thiels (can't recall the model, unfortunately), I was blown away by the imaging and coherency. That launched a long obsession with soundstaging....although my speakers at the time, Dahlquist DQ-10s, were no slouch, they were no match for those Thiels. Today I own both 1.5s and 2.3s.

Unsound: A Mobie is G&D's model name for their cable burner, which is no longer produced. Sean
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Apogee Divas driven by a Classe DR3-VHC. I heard an LP of Liszt's "Via Crucis" through these turn the far end of a showroom into a cathedral. Utter magic.

A KR-18 integrated amp - it was the first time I "got" what SET was all about, and bought it on the spot.

My Coincident Total Victories and Audio Note 4.1x DAC

There has been no match to my first experience with the Apogee Scintilla for a knock out experience, until I heard the Acoustic Reality eAR 2 MKII on Scintillas. That was an equally mind blowing experience.

Gilmore Model 2 and Model 3 speakers.

They must be heard to be believed.

KF