I am using KT-170, PSVANE 274B and KEN RAD CKR-6SN7GT/VT231 tubes. Speakers: Zu Audio Dirty Weekend MK.II, Pre-Amp: Roy Mottram SP14/Special V22. KT88's has a "Jazz Club" soundstage, Smooth in all ranges, Bass is controlled (deep) and a very imminent presentation. The KT-170's (after 10hrs) Opens everything up, Wider and Deeper Soundstage, the sound Floats around you. No need to tube roll at this time as this tube selection works very well.
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