Audiophilepure

This bass response was partially due to the KT120, but was primarily due to the fixed bias nature of the amplifier. In tube amp design there is a debate over whether fixed bias designs or cathode bias designs are better. Fixed bias will almost always produce better bass, but it may make the amp less dynamic and airy. The Bryce Monos though had it all, great bass and airy and extended highs. Whether it was Alanis Morissette or Mika, trumpets or cymbals, these amps simply delivered in extensions and airiness.

Like ampsandsound’s other single-ended amps the Bryce Monos have a reference midrange. Voices appear to float in the center of my listening room. It draws you in with a texture that makes you want to reach out and touch the invisible person singing in the center of your room. Closing your eyes, you can begin to make out the movements of the singers jaw. This is not an overload of detail, but simply the Bryce’s ability to render an incredibly high resolution experience. This is particularly apparent on The Mountain Goats, Jordan Lake Sessions album. As John Darnielle belts out the word to “This Year” you can feel the emotional toll the year has taken on him, as well as the rest of the band. You can also very clearly hear the room he is in. The saxophone remains locked in place, swinging on the stage in a disturbing but shockingly realistic way. I realized I was literally hearing the saxophonist rock back and forth to the beat.

https://www.stereophile.com/content/audio-research-vt100-power-amplifier

Timbral Coherence: With the VT100 it became irrelevant to speak about how the amplifier recreated the bass, the midrange, the highs. The amplifier did not break down a musical event into its component tonal parts. Given a good recording, the VT100 recreated the timbral architecture of the voice or instrument as a single, coherent musical event.

Given a very good recording, the VT100 caused me to throw my notebook away. I recently acquired a bunch of Classic Records jazz reissues and, using the VT100, set out to undertake a comparison of the LPs with my originals. With each recording, I lost sight of my mission. By the end of the listening sessions, I realized I’d never even bothered to dig out the originals. The Classic reissues sounded so lifelike I didn’t care what the originals sounded like.