The power reg you can usually find in a store selling electronic components, etc. If in doubt as to the right unit for the application, ask the people there (it shoudl set you back $~20 or around there).
Yes, by tuning, I mean: a) decide on the baffle's smallest dimension (i.e. the width) which determines the low frequency at which you start rolling off (6db/octave). For experiments you can play around with a cardboard baffle to reduce costs -- until you find the best compromise for yr application. Phy and Supravox have OB designs on their sites that you've probably consulted already. Also check out Thorsten Loesh's OB spkrs -- don't have the url handy, but you can locate it easily via google.
B) You may want to add a separate woofer (or tweet or both) in which case you'd want to hi-pass the Fertin at some frequency -- which means the choice & design of a xover...
BTW, I assume you have consulted Mr Linkwitz's site.
OB are lovely spkrs! Cheers!
Yes, by tuning, I mean: a) decide on the baffle's smallest dimension (i.e. the width) which determines the low frequency at which you start rolling off (6db/octave). For experiments you can play around with a cardboard baffle to reduce costs -- until you find the best compromise for yr application. Phy and Supravox have OB designs on their sites that you've probably consulted already. Also check out Thorsten Loesh's OB spkrs -- don't have the url handy, but you can locate it easily via google.
B) You may want to add a separate woofer (or tweet or both) in which case you'd want to hi-pass the Fertin at some frequency -- which means the choice & design of a xover...
BTW, I assume you have consulted Mr Linkwitz's site.
OB are lovely spkrs! Cheers!