All the questions come from the installation page here. Just things I didn't understand. This is my first time ever installing components, and messing with/installing crossovers. They're kind of confusing. These components:
http://mobile.bostonacoustics.com/car/car_product.aspx?category_id=14&family_id=94&product_id=293
1. Tweeter Attenuation


Is this just the volume of the tweeters? Putting it on -2 or -4 db will make them a little quieter or what? We weren't sure, so I left it on -2db which is where it was when I took it out of the box.
2.


What is the difference between single input & bi-amp? We just wired them as shown in single input. Also, with this set up, it shows the wire coming from the amp going into the tweeter section of the crossover on one, and into the 6.5 section on the other? Is that right, or should they both go into the tweeter section?
3.


Didn't understand this one either. We figured the 6.5's are down in the door panel closer to our feet, so it was off-axis and set it at SQ2. Is that right? And what's the purpos of this feature?
http://mobile.bostonacoustics.com/car/car_product.aspx?category_id=14&family_id=94&product_id=293
1. Tweeter Attenuation


Is this just the volume of the tweeters? Putting it on -2 or -4 db will make them a little quieter or what? We weren't sure, so I left it on -2db which is where it was when I took it out of the box.
2.


What is the difference between single input & bi-amp? We just wired them as shown in single input. Also, with this set up, it shows the wire coming from the amp going into the tweeter section of the crossover on one, and into the 6.5 section on the other? Is that right, or should they both go into the tweeter section?
3.


Didn't understand this one either. We figured the 6.5's are down in the door panel closer to our feet, so it was off-axis and set it at SQ2. Is that right? And what's the purpos of this feature?