6 15's, blowthrough on 2k. Mid 50's? MTA read this.
Thread Starter
50 Watt CAFz'r
Joined: Jun 2010
Posts: 245
6 15's, blowthrough on 2k. Mid 50's? MTA read this.
So time has come to cut my truck up. Plan on running powerbass m or l series 15's and an undecided amp as of yet. I have 72+ cubes to play with. Not a burp machine either. Want stupid lows that will also play a variety of music if asked to. Truck is a soon to be bagged 94 chev longbox. Lemme know opinions. Thanks.
Are you using sealed or ported?
Is this a walled blow through?
Like:
OOO| |
OOO| |
Can you fit 4 18's ported?
Have you considered laying down in the bed a bunch of sealed 18's?
The L series comes in D4 (6 = 1.33/series-parallel or .33 ohms/parallel-parallel) while the M series comes in S4 (6 = .67 ohms) & D4.
Sealed:
L series
2.5 cf3 = 44.99 HZ / Q .7686
3 cf3 = 42.22 HZ / Q .7213
3.5 cf3 = 40.13 HZ / Q .6856
M series S4
2.5 cf3 = 43.36 HZ / Q .8475
3 cf3 = 40.59 HZ / Q .7933
3.5 cf3 = 38.49 HZ / Q .7522
M series D4
2.5 cf3 = 38.54 HZ / Q .846
3 cf3 = 36.16 HZ / Q .7938
3.5 cf3 = 34.37 HZ / Q .7544
Is this a walled blow through?
Like:
OOO| |
OOO| |
Can you fit 4 18's ported?
Have you considered laying down in the bed a bunch of sealed 18's?
The L series comes in D4 (6 = 1.33/series-parallel or .33 ohms/parallel-parallel) while the M series comes in S4 (6 = .67 ohms) & D4.
Sealed:
L series
2.5 cf3 = 44.99 HZ / Q .7686
3 cf3 = 42.22 HZ / Q .7213
3.5 cf3 = 40.13 HZ / Q .6856
M series S4
2.5 cf3 = 43.36 HZ / Q .8475
3 cf3 = 40.59 HZ / Q .7933
3.5 cf3 = 38.49 HZ / Q .7522
M series D4
2.5 cf3 = 38.54 HZ / Q .846
3 cf3 = 36.16 HZ / Q .7938
3.5 cf3 = 34.37 HZ / Q .7544
Last edited by Lord Huggington; Aug 12, 2010 at 02:14 PM.
Soundsplinter RL-P 15 sealed:
D2 (6 = .7 or .167 ohms)
3 cf3 = 40.02 HZ / Q .5689
D4
3 cf3 = 45.6 HZ / Q .7415
1000W RMS
SPL: 89.43 dB SPL: 89.67 dB
[ SoundSplinter Subwoofers - RL-p 15" Subwoofer Information ]
D2 (6 = .7 or .167 ohms)
3 cf3 = 40.02 HZ / Q .5689
D4
3 cf3 = 45.6 HZ / Q .7415
1000W RMS
SPL: 89.43 dB SPL: 89.67 dB
[ SoundSplinter Subwoofers - RL-p 15" Subwoofer Information ]
Administrator
Joined: Feb 2006
Posts: 16,860
A local had 4 15s in a below-window blow through, side by side, in a early 90s Chevy 454SS pickup. It looked cool but they lost so much structure in the back of the cab you could push the window in and out 
Blow throughs are cool but be careful how much metal you take out.
Blow throughs are cool but be careful how much metal you take out.
Or just reinforce on the interior.
Thread Starter
50 Watt CAFz'r
Joined: Jun 2010
Posts: 245
Building the inner and outer structures out of 1.5x1.5x1/8 steel. Got that part taken care of just not sure on the box. All firing into the middle through a passage in theory is a 4th BP. 2 ported boxes firing into one passage is a 6th in theory. BTW this is purely a budget build with easily replaceable, cheap drivers.
