Need below information to confirm order.
1.speaker weight ?
2. installation hole picture.
bottom of speaker or back of speaker?
3. If hole at back of speaker. need hole distance from hole to bottom of speaker
If hole at the bottom of speaker. need 2 holes distance
If hole distance to bottom of speaker more than 70MM. can add AL400. Can extend max 200mm, first 2 picture. how to conned SO-1 and AL400