Just took delivery of the newly prototyped Pure BiPolar amp by Spritzer. Seems its a new take on the Dynalo Mk II with BiPolar SuSy inputs. Short first impressions - clean sounding with good, clear hard hitting bass when the recording has it. Typical neutral to warmish sound of Spritzer builds yet not sterile nor clinical. Pairing well with my Mojo as source and PM2 as headphones. This amp can accept single ended inputs (via adapters) yet produce a genuine fully balanced output via the SuSy tech. Needs some more run in time but its sounding good without the stress of tube noise and ground loop hums from my Glenn OTL (another firm favourite amp). Well done, Spritzer!