Can I Build Solid State that Sounds Like Tubes?(DIY upgraded Nelson Pass Amp Camp Pre+Headphone Amp)

Описание: So I built a headphone amp/preamp. I also built a linear power supply for it. It's supposed to sound "tubey". Does it? And how does it stack up to my Xduoo TA-84 and Aune S17 Pro?

Important update: the folks at DIYAudio noted that the harmonic distortion I mention in this video doesn't match how the ACP+ is supposed to perform. After reviewing my build with them, it seems some of my resistors were burned out. I have replaced the resistors and now the harmonic distortion measurements have gone down dramatically. I'll be doing a follow-up video, but in short the "fuzz" I talk about hearing in this video has disappeared.

Corrections:
It seems that 3 db lower is half as much power but not half as much loudness. 10db lower is half as much loudness.

Gear discussed:
Amp Camp Preamp+Headphone Amp
AMB Sigma11 power supply
Aune S17 Pro
Xduoo TA-84
Sennheiser HD6XX
ZMF Atrium
Sennheiser HD660S2
Sennheiser HD560S
Hifiman HE5XX

Sites: DiyAudio.com, DiyAudioStore.com, AMB.org

Mentioned:
NitchXSchiit Piety
NitchXSchiit Pietus Maximus
Schiit Mjolnir 3

My current chain: Macbook - JDS Labs Synapse - SMSL VMV D2R - Xduoo TA-84 or Aune S17 Pro - Parasound A23+ - Q Acoustics Concept 30 + Paradigm V10 subwoofer

Music streamed from either Apple Music or Qobuz

0:00 On power supplies
6:20 The Amp Camp Pre+
12:04 Vs. the S17 Pro
15:03 Vs. the Xduoo TA-84
19:40 Distortion measurements and explanations
26:00 What's next?