The Liquid Spark has grown on me, in nearly a year of ownership. Wasn’t in love with it when using a pair of Senn HD580’s, but it does seem to happier with a pair of Senn 6xx.
I use an ECC88 ‘tube buffer’ between an iPure and the Spark.
Very impressive details, dynamics and stage.
The only thing I didn’t like was the 3 wall warts (one for Spark, one for iPure and another larger supply for the tube buffer) and the ‘tangle of cords’.
Broke out the table saw and some scrap 3/4 inch MDF and made a box to house all the power supplies and to untangle the cords. Also added a ‘marker strip’ on Spark’s volume knob.
Happy with this as a little ‘system’ now.
Going to paint the box a pewter grey, next. Maybe add a hanger on the side of the box to hold the Senn 6xx...
Cheers...