Originally Posted by tomb
The production boards have terminal block pads next to the jack pads. So, wiring in an additional jack will be a snap.
No, you don't need to use a bigger film cap than the 0.22uF one. However, the pads/space are 50% bigger there than at the other 0.22uF pads. So, a much larger film cap can be used, including some nice boutiques. It's up to you, but the 0.22 Wima's will sound great. The big thing is upsizing that electrolytic - I believe it makes a big difference in bass slam.
Sorry mate, I guess I was pretty vague originally...the reason I was inquiring about the headphone jack is that I would like to use a Neutrik locking jack in place of the jack on the BOM, the one that the board is designed around. So, just one headphone jack, and a Neutrik locking jack instead of the Neutrik switching jack listed on the BOM. I'd also like to connect the jack and the ALPS using wire rather than directly on the PCB, that way I have plenty of flexibility when mounting them (mainly so I can vertically center them on the front panel).
I plan on using the Nichicon Muse ES for the electrolytics in the signal path, and going with 1000uF in place of the 220uF one. I've read that those have the best bass
If you think the Wima's on the BOM will work fine, then I will use those