Help with getting good bass from my setup

bad84ss · Post by **bad84ss** » Wed Jan 25, 2006 5:40 pm

Right now i have 2 Alpine type r 12's in a sealed box running at 2 ohms off a directed 1500d. The subs are in the trunk of a 1984 monte carlo ss. What do i have to do or change to get these subs to really shine? Let me know if you need more info... Thanks!

smoker · Post by **smoker** » Wed Jan 25, 2006 6:05 pm

well without any more info your gonna be hard pressed to recieve useful advice......for starters is your amp powered correctly? what head unit are you running? what size is the enclosure and how are the subs facing? crossover point? crossover slope?

stephensmia · Post by **stephensmia** » Wed Jan 25, 2006 6:10 pm

which way are the subs facing if forward is the trunk sealed

TechSys · Post by **TechSys** » Wed Jan 25, 2006 6:36 pm

What kind of music you listen to? What are you going for SQL (quality) or SPL (pressure)? Is the enclosure you have prebuilt or built specifically for the subs?

May be a lot of questions there, but they come in handy when trying to help in situations like yours.

bad84ss · Post by **bad84ss** » Wed Jan 25, 2006 7:09 pm

Amp is powered fine with a 1.5 cap giving extra power. My subs are facing to the back of my car and the box is just a standard sealed box bought at hhgreg. I have a clarion DXZ845MC head unit. Im going more for SPL. I listen to rap

Darthness · Post by **Darthness** » Wed Jan 25, 2006 7:16 pm

the cap is not "giving" extra power.

You consider vented boxes, even if its the ones that best buy sells (apparently they are built for type-r's though)

veggie-man · Post by **veggie-man** » Wed Jan 25, 2006 8:21 pm

smoker wrote: what head unit are you running?

i know this isnt my thread but i was wondering... why does it matter what the head unit is? cant you just take an adaptor and get the signal from that?

Post by **GlassWolf** » Wed Jan 25, 2006 9:02 pm

ported box, and vent the package shelf to couple the air between the cabin and trunk areas.

High Society · Post by **High Society** » Wed Jan 25, 2006 9:23 pm

at 2 ohms off a directed 1500d

If you are running over a 1000 watt rms, you will want to upgrade your electrical system. You will fry that amp soon due to low voltage. Do the big 3 and you should gain a hefty amount of spl.

Amp is powered fine with a 1.5 cap giving extra power

If you are on a stock electrical system, this is taking more power away. And they are pretty much useless.

box is just a standard sealed box

Get a ported box, built to the specs of the type R's and then they will be shining.

bad84ss · Post by **bad84ss** » Wed Jan 25, 2006 9:25 pm

thanks everyone