Audio Systems: Subs, folded horn design, vented box


Question
Yes I have a Mmats 1500.2 amp and would like to know what would be the best subs to git to fit my system. Looking for sunm cheap but productive.I wanna try Q" POWER Deluxe Series subs bu5t neva hear of em.

Answer
'Best subs' can easily mean a dozen different things to as many people.
Of course, the word 'cheap' has just as many definitions if not more.

Which sub(s) you choose will depend on the vehicle and what type of enclosure you are going to use, your expectations and your budget.
What are you after? Something that hits like Tyson or something which is stealthy.. or something which is accurate and will last for years?
A combination perhaps?

1) You could go with a sealed box (awesome power handling, great low end performance and tight bass).
2) You could have a vented box which is not tight but is very loud at the tuning point and the response rolls off very quickly once you go below that tuning point.
3) You could go with folded horn design which is the most efficient if you have the room. These use sealed boxes in conjunction with a wave guide which surrounds them (you have seen or at least heard some of these if you attend live concerts).

Proper design and tuning of each of these gets exponentially more difficult as you go from design 1 to design 3.  However, the results of #3 can blow away both 1 and 2 if you have the patience to tune them out.
each design will need the same amount of precision in craftsmanship for optimal performance.

Your budget range/limit needs to be resolved since I could point at speakers which cost from 40.00 to over 2000.00 each.

Generally, find speakers which fit your needs and the design goals while falling within the RMS rating of the amp.
jm