I added the Topping E50 DAC and L50 headphone amp to my Volumio Primo V2 via USB to build a proper headphone setup, and I’m very impressed. Using the LETSHUOER S12 Pro balanced from the L50 (low gain), the sound is simply amazing.
The presentation is clean, powerful, and highly detailed, with a completely black background. Bass is tight and fast, mids are clear and natural, and treble is extended but smooth. The setup sounds effortless, with great separation and control, even on complex tracks.
As a complete headphone/IEM chain, this combo works extremely well and delivers a neutral, refined, and very enjoyable listening experience. Highly recommended if you’re looking for a serious headphone setup.