"Best" is subjective.

The 'best' brand for you is the one that meets the most of your wants and needs from a stereo while still staying within your budget but no one brand is the 'best' for all people.

Can someone please explain the details of this surround system in a small car? Is it good for loud music? Thanks?

380W, 10 Speakers, 12 channel class D
DSP amplifier, Audyssey MultEQ Audio Equalization, Dynamic volume control.

Using 3/4" material throughout results in 1-1/2" difference between the internal and external dimensions.

The only reason you need to consider the added 1-1/2 (which would be different using a different thickness of material) if for space requirements in fitting the enclosure to your selected location in the vehicle.

Most "calculators" for airspace allow you to specify possible dimensions and thickness of material which means that you only need to know the "size" of the selected location.

The volume calculator here is your best bet (6th calculator down).

First measure the space you have. Length, width, and height. Then design the enclosure to fit the space. You can You need to know if the 2.75 Ft^3 is "net" or "gross". If the space is net, you'll need to separately calculate and add the "displacement" volume of the subwoofer (and port), and build a slightly larger enclosure to account for such displacement.

An enclosure (constructed from 3/4" material) that is 24"x24" (length and width), and 11" in depth results in a "gross" internal airspace of 2.78 Ft^3. Using the calculator, your space measurements, size and displacement of port, displacement of the sub itself, and knowing whether the 2.75 figure is net or gross, you can plug in different numbers to get the best external dimensions.

As you cannot be bothered or are too dumb to work out why you didn't get an answer before (MORE INFO REQUIRED ie WHAT are you using it for it makes a BIG difference)

If you don't mind upping the amperage as well set them in series AND parallel then you only need 1 charger. I cannot say more without you giving some information.

If you don't have an mp3 jack or tape player you can buy an fm transmitter, you connect your phone to it (either by a headphone jack on your phone or by Bluetooth) then on the transmitter you either select a fm station or its already pre selected(if its a cheaper model) then you just tune your car to the fm channel it says to then you will hear what ever you play off your phone :) they are 10-60$ on eBay depending if u get a Bluetooth enabled one. Another route (if you have a tape player) is to but a cassette to MP3 player u can get at any electronic store or even Walmart for 3-20$