Ned Lowe 4 Replaced an old $$$ dac. Great sound for low cost. Blue tooth audio is noticeably worse than spdif, toslink or usb cable inputs. Balanced out is superior to rca, even w/$$$ rca interconnects. Remote is used w/all SMSL gear, it is small and the multi-function keys are unintuitive. Documentation is poor, and too small to read. Unit takes about 100 hrs to break in. Nice set of sound-shaping filters, but there are in-room response problems w/some filter settings - outsize vocal images, instrument placement, etc.PS "Bass" is part of "Sound quality" there is no need for a separate category - it isn't a "feature"