ProtoDAC TDA1387 X8 project

[hifinet]

A forum member kindly donated Panasonic NHG-A electrolytic power supply decoupling caps. I think they are the ECA-0JHG102 1000uF 6.3V $0.50 each at Digikey (P5509-ND). Initial sound quality is excellent. Very smooth from the start. Excellent highs. Excellent soundstage and imaging. After 24 hours burn in, they have not changed. The Panasonic FR EEU-FR1A102LB 1000uF 10V have unsurpassed low bass (e.g. 32Hz organ pedal). Much better than any of the other caps I have tried. The FR are much harder edged than the NHG, and the highs are not as good, more recessed. The FR need burn in to mellow out an upper midrange harshness. Planned burn in of the NHG past 60 hours once the sound stabilizes, and then plan to mix FR and NHG. Will the killer bass of the FR continue, while maintaining the excellent SQ of the NHG?

The 6.3V NHG has 3.5mm lead spacing, 8mm diameter and 12.5mm height. The Panasonic FR EEU-FR1A102LB has 5mm lead spacing (taper to 3.5mm), 8mm diameter and 16.5mm height. A 10V NHG ECA-1AHG102 has 5mm lead spacing, 10mm diameter, and 13.5mm height.