SMSL SU-9 Balanced DAC Review - Best DAC under $500?

SMSL SU-9: https://shenzhenaudio.com/products/s-... Discuss the SMSL SU-9: https://forum.headphones.com/t/s-m-s-... Become an expert on headphones: https://www.headphones.com/pages/rese... Learn about headphone measurements and frequency response: https://www.headphones.com/pages/meas... How frequency response impacts sound signature: https://www.headphones.com/pages/how-... Podcast: https://theheadphoneshow.fireside.fm/ Twitter:   / headph1show   Twitter:   / resolvereviews   Source equipment Amp - SPL Phonitor X: https://www.headphones.com/products/s... Amp - Cayin IHA-6: https://www.headphones.com/products/c... DAC - iFi Pro iDSD: https://www.headphones.com/products/i... DAP - iBasso DX220: https://www.headphones.com/products/i... Matrix Audio X-Sabre Pro: https://www.headphones.com/products/m...