A 30 Year Old Tube DAC Vs a Modern $1K SMSL D400 EX!

Review of the SMSL D400 EX DAC. I compare it to a Topping D70s and a 30+ year old, California Audio Labs Sigma Tube DAC. SMSL D400 EX DAC Affilate link: https://apos.audio/products/smsl-d400-ex?variant=7806058889452&gad=1&gclid=Cj0KCQjwl8anBhCFARIsAKbbpyQ9y4GGhaEu29Ekwb6AwzIIs6XrwPT91bH5GS5Ag2OeTZCMXKpTY24aAo1oEALw_wcB&sca_ref=620104.0Wmq4p3spz Orchard Audio Pecan Pi+ review: https://youtu.be/KVmWQUE3VCY Support MODAC through Patreon: https://www.patreon.com/myowndevices