Do they sound the same? SMSL SH9 & SP400 Headphone Amplifier Review !

SMSL SH9 & SP400 are headphone amplifiers to the SMSL SU9 and M400 Dacs respectively. Both are THX certified amps with great measurements and boasts neutrality. So we did a little blind A/B test comparison ! This video is not sponsored for more info on how we work: https://nbtsmedia.com/about-us/ place to purchase: SMSL SH9: https://apos.audio/products/smsl-sh-9... https://shenzhenaudio.com/collections... https://amzn.to/2Ov5LJd SMSL SP400: https://apos.audio/products/smsl-sp40... https://amzn.to/3rLv9cg https://shenzhenaudio.com/collections... matching dacs SMSL M400: https://apos.audio/products/smsl-m400... https://shenzhenaudio.com/collections... https://amzn.to/3bJPl8R SMSL SU-9: https://apos.audio/products/smsl-su-9... https://shenzhenaudio.com/collections... https://amzn.to/30HFiLe Relevant reviews: SMSL M400:    • Budget DAC Showdown: SMSL M400 Takes On th...   SMSL SU-9:    • SMSL SU-9 mqa DAC review - Perfect? Why ge...   Burson funk:    • Burson Audio's NEW affordable Speaker Inte...   Burson playmate 2:    • Affordable Quality HiFi Class A ! Burson A...   PATREON:   / nbts   Instagram:   / nbtstudio2017   Facebook:   / next-best-thing-studio-242981716166695   Twitter:   / nbtstudio2017   #hifi #audiophile #headfi