I'm getting a 10-13 Mazda 3 Hatchback pretty soon now. I'm trying to decide if I want to keep my current system or upgrade it. Just looking for some advice.
Current system
Pioneer AVH-X4700BS headunit
NVX JAD 900.5 5 channel amp 75w x 4 at 4ohm 440w x 1 at 2ohm
Polk audio db 6.5 components and coaxial
Sundown SD3-10 in underseat truck box.
Option one would be swap the shallow sd3-10 for a sundown sa-8 v3 in a ported box, how would it be on 440w at 2ohms. Maybe swap the 6.5" coaxial for 6x8 coaxial for rear door. I'm sure the ported sa-8 would have more bang then the 10 in a sealed box, cheapest option
option two would be upgrade the amp and do the sa-8. I want to keep a 5 channel for easy and less space. I was looking at the hifonics brutus btx 60w x 4 at 4ohm and 750w at 2ohm 1000w at 1ohm, loose power to speakers but gain power in sub stage or the soundstream t5.2500DL 75w x 4 at 4ohm, 500w at 2ohm and 750w at 1ohm. would cost a bit more but is the cost of a new amp worth the gain?
option three upgrade to one of the amps and do the x-8, most costly of the three options.
Any other options, I want to keep a 5-channel amp and do a single 8" as long as I can do that I'm open to any suggestions. I'm happy with the speakers so don't really find a need to change them. just looking for my best option for low end. Not looking for SPL or SQ just something that's easy to listen to without breaking the bank.