Singxer SA-1 Headphone Amplifier Review

Thanks Apos Audio for the loan of SA-1!

Buy from Apos (Affiliate Link): https://apos.audio/products/singxer-sa-1-fully-balanced-amplifier?variant=6172911665323&gclid=CjwKCAiAjs2bBhACEiwALTBWZVjupf5UF7NUfhK85q6iGoKz_v_RI6twQLkFMqVQn6pdwyfuImLirBoCiNQQAvD_BwE&sca_ref=1448954.julYPU81dF

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Patreon: https://www.patreon.com/wavetheory1
Donate on Paypal: https://www.paypal.com/donate/?hosted_button_id=7N7Z8WRLWQ36E

My Reviews of Mentioned Gear:

Lake People G111mk2: https://youtu.be/kSxg9OJWlXQ
Topping A90D: https://youtu.be/hxdD0eilgUA

Schiit Bifrost 2/64: https://youtu.be/gydqRIWgbrc
Singxer SU-2: https://youtu.be/0WNxN11QY8o

Beyerdynamic DT880 600ohm: https://youtu.be/gwmP7r8ffA0
Focal Radiance: https://youtu.be/o1DDTtN57VQ
HiFiMan Ananda Stealth Magnet Ed: https://youtu.be/oU8SJW5-NH0
HiFiMan HE1000se: https://youtu.be/Hf_0NqehvPg
HiFiMan HE6se v2: https://youtu.be/NnwqHJlAjxk
HiFiMan Susvara: https://youtu.be/mZJ78eXWkt0

My video on output impedance and damping factor: https://youtu.be/_TZZMO8CytE

My 'essay' on balanced vs single-ended: https://forum.hifiguides.com/t/is-balanced-better-pros-cons-of-balanced-vs-single-ended/21905

Shorts explaining "wet" and "dry"

https://youtube.com/shorts/CI0hagpuApI
https://youtube.com/shorts/pYM_5RuehW0

Channel Intro: https://youtu.be/mAEiO10iF4A
My Hearing Quirks: https://youtu.be/lIKtrGJwit0

Timestamps...

00:00 Intro, Pricing, Disclaimers
00:53 Shameless Self Promotion
01:20 Unit Description
03:46 Build & Features
11:30 Test Gear
13:25 Sound
19:54 Comparisons (coming soon)
21:30 Hi-Z vs Lo-Z Switch Impact
24:07 Conclusions