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Port Blockers


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#1 lee lee corsa

lee lee corsa

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Posted 20 Sep 2011 - 11:13

My box is currently tuned to about 33Hz but i would like to have a go at Propper Droppers for a laugh and for abit of fun really .

Ideally i didnt want to make a loww tuned box just for the occasion so i thought in using a port blocker to help me drop the tuning down so i can hit the required 20Hz tone lol

can anyone share some advice in how to make a port blocker and drop it down to around 20Hz ish ?

thanks guys

Lee

Jazz Blue Golf Mk4

- Alpine 9886r - 2 x Ground Zero XQ 15's - 2 x Ground Zero 1.4000d's - 8 x 42ah Hawker Genesis Batts - 210a de-regged Alt - 70 sq.ft 4mm Silent Coat - Ground Zero Iridium GZIA4115 HPX (Tweeter amp) - SPL Dynamics 150.4 (Mid Bass amp) - 2 x Ground Zero GZTC 2200 Compression Tweeters - 8 x b2 Audio 8" midbass drivers -


#2 Jason_D

Jason_D

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Posted 20 Sep 2011 - 16:58

is your port straight or an L shape?
2 x DC Audio Level 5 18"
2 x Sundown SAZ 2500's
40Hz= 155.3dB
33Hz= 157.6dB
25Hz= 156.3dB
20Hz= 153.4dB
Peak= 157.6dB @ 33Hz
Total Average= 156.0dB

#3 lee lee corsa

lee lee corsa

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Posted 20 Sep 2011 - 18:07

its a twin 12" center port L shape

Jazz Blue Golf Mk4

- Alpine 9886r - 2 x Ground Zero XQ 15's - 2 x Ground Zero 1.4000d's - 8 x 42ah Hawker Genesis Batts - 210a de-regged Alt - 70 sq.ft 4mm Silent Coat - Ground Zero Iridium GZIA4115 HPX (Tweeter amp) - SPL Dynamics 150.4 (Mid Bass amp) - 2 x Ground Zero GZTC 2200 Compression Tweeters - 8 x b2 Audio 8" midbass drivers -