I believe Goldensound on You Tube has reviewed dacs from both companies and may help you gather some comparisons. I don’t recall which Gustard he reviewed, but I know he thought highly of it. He did say the Holo sounded “better” and the user had to decide whether spending the extra dollars for the Spring was worth it to them. So in the end, there is no way around listening, but at least you can get some tips on basic sonic qualities. But tips are all they are.
Gustard R26
Is anyone else looking forward to the reviews coming out on the Gustard R26 r2rDac? I am interested to see if it can compete with the Holo Spring at a lower price point. How will it stand up to the other r2r dac’s out there right now. It does present well and is feature rich right out of the box. Is it a true proprietary resistor board or is it off the shelf and tweaked? I know the other Gustard equipment is well received and liked so my hopes are high for this as well.