Can You Hear the Difference? AIYIMA D20 XLR Op-Amp Swap | LME49720 vs SS3602

In this video, we compare the sound of two different op-amps in the AIYIMA D20 DAC. For this test, we replaced the two op-amps corresponding to the XLR output of the D20, changing from the stock LME49720 to Sparkos Labs SS3602. Test Setup: Source: AIYIMA & HYFIOO DM100 DAC: AIYIMA D20 Preamp: AIYIMA T20 (Volume 55) Power Amplifier: AIYIMA A20 Connection: XLR Op-Amp 1: LME49720 Op-Amp 2: Sparkos Labs SS3602 DEMO: LME49720: https://drive.google.com/file/d/1Ig_J... SS3602: https://drive.google.com/file/d/1J57n... All other settings and equipment were kept the same for a direct comparison. 🎧 Use headphones or a good audio system for the best listening experience. Which one do you prefer — LME49720 or SS3602? ------------------------------------------------------------------------------------ Links: D20 DAC Official: https://www.aiyima.com/products/aiyim... US: https://www.amazon.com/promocode/A1TG... CA: https://a.co/d/0ejXpEf4 DE: https://www.amazon.de/AIYIMA-D20-Voll... UK: https://www.amazon.co.uk/AIYIMA-D20-D... IT: https://www.amazon.it/AIYIMA-D20-pien... ES: https://www.amazon.es/DAC-Hi-Fi-Equil... PL: https://www.amazon.pl/AIYIMA-D20-w-pe... JP: https://amzn.asia/d/0eQdqm97 KR: https://ko.aliexpress.com/item/100501... RU: https://aliexpress.ru/item/1005012771... TH: https://th.xiapibuy.com/product/26626... A20 MONO Amp Official: https://www.aiyima.com/products/aiyim... US: https://www.amazon.com/promocode/A1SW... CA: https://a.co/d/0cSv4Zkg DE: https://www.amazon.de/AIYIMA-A20MONO-... UK: https://www.amazon.co.uk/AIYIMA-A20-F... IT: https://www.amazon.it/Amplificatore-b... ES: https://www.amazon.es/Amplificador-mo... JP: https://amzn.asia/d/0cwbEGtX KR: https://ko.aliexpress.com/item/100501... RU: https://aliexpress.ru/item/1005012782... TH: https://th.xiapibuy.com/product/26626... #AIYIMA #AIYIMAD20 #D20DAC #DAC #OpAmp #OpAmpComparison #LME49720 #SS3602 #SparkosLabs #XLR #XLROutput #HiFi #HiFiAudio #Audiophile #AudioUpgrade #DACComparison #SoundComparison #AIYIMAAudio