I listen to a lot of Hip hop and R&B. I have a bandpass box in my trunk and I'm really tired of it. Everything sounds too loose. I want tight bass but boomy bass without it sounding sloppy.

Basically what I want to know is should I go ported or sealed?

 

What kind of subs are you using and how much power is going to them? Brand and size. What are the dimensions of the enclosure? Rear enclosure and ported enclosure dimensions? Port length? Dual or single reflex? With this info I will help you determine your problem and solution, thanks.

 

For tight bass...go with sealed. Bandpass & ported boxes take a lot of tuning to make them sound good, but you need to have subs that are meant for sealed enclosures.

 

The box and amps were gifts. I have (2) 12" Visoniks in a bandpass box with the neon lights.

Specs:
bandpass enclosure with window and (4) 6" tuned ports
two 4-ohm 12" spruce-pulp paper woofers
red neon and strobe lighting
two speaker inputs and two 12-volt inputs
frequency response 25-400 Hz
recommended power range 80-600 watts RMS
sensitivity 93 db
28-1/2"W x 15-3/16"H x 17-1/2"D


I have (2) bazooka El1500 amps.

Specs:
EL1500
Voltage 10.5-14.4
Channels 1
Sensitivity 450mv - 8v
Frequency Response 20Hz-20kHz
Fuse (4) 15A @ 60A
Crossover Low Pass ONLY
Protection Speaker, Ground, Thermal
Max Power Output 700
Power @ 4 OHM 385 x 1
Power @ 2 OHM 500 x 1
Power @ 1 OHM Not Recommended
Power @ .5 OHM Not Recomended
Signal To Noise Ratio 100 dB
Hi Input Level 1.0 - 10.0V
Battery Voltage Range 10.5VDC - 15.0VDC
Crossover Range 50-250Hz,sloped @ 12db/Oct
Bass EQ 12db @ 45Hz
Remote Control *Optional* (ELA-BCM)
RCA Input yes




I'm looking to get (2) Alpine Type R subs. I wanna know what type of enclosure to use.

Specs:
SWR-1221D
KevlarŽ-infused pulp cone
1" Santoprene rubber surround
dual 2-ohm 2" voice coils (make sure your amplifier is compatible)
frequency response 24-1,000 Hz
power range 100-300 watts RMS (150 watts per voice coil)
peak power handling 1,000 watts
sensitivity 87 dB
top-mount depth 6-15/16"
sealed box volume: 0.7-1.0 cubic feet
ported box volume: 0.75-1.75 cubic feet

 

Based on the specs of the amp and subs, I would build the seale box to 1 cubic foot per sub and wire each sub to a 2 ohm load and one sub per amp. Each sub would get their 500 watts which is a little over RMS, but half the peak power. If you are unsatisfied with the sound you will be well within range for the specs to add a port. Good luck.