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SPL at low tuning help


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Posted

Hey guys, I know this may sound silly, but...

I plan on competing in the Texas Heat Wave down in Austin, TX next month since it's only an hour away from me. I definitely know my current setup won't be as loud as everyone else, but I'm mainly going just to see other peoples builds and I'm curious to what I score on the meter. Everyone starts somewhere right?

I currently have two CVX's on a Kicker CX 1200.1 amp. Each speaker ran at 2ohms, and a 145 H/O alt, as well as big 3. 0 gauge power and ground. They are in a 4 cubed box and tuned to 32hz. To me, it sounds loud and definitely hits the lows. My rearview mirror fell off. It's all in a 05 Honda Civic SI hatchback; port about an inch or two away from hatch; subs facing up.

How well do you guys think I would do in a competition? I know people tune high for spl, but can I still score relatively high tuned at 32?

Thank you so much for the help guys.

Posted

You should do okay, I mean your not really looking for a record. Just going for fun. :)

Just see what you do, check out some of the big systems and talk to their owners.

A few hatchback owners may pop in with their little tricks. But main thing is to have fun at the meet.

b_350_20_692108_381007_FFFFFF_000000.png

Krakin's Home Dipole Project

http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370

Krakin, are you some sort of mad scientist?

I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .

What you hear is not the air pressure variation in itself

but what has drawn your attention

in the two streams of superimposed air pressure variations at your eardrums

An acoustic event has dimensions of Time, Tone, Loudness and Space

Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears,

thus no formula can achieve a definite effect for every listener.

Posted

You should do okay, I mean your not really looking for a record. Just going for fun. :)

Just see what you do, check out some of the big systems and talk to their owners.

A few hatchback owners may pop in with their little tricks. But main thing is to have fun at the meet.

Alrighty, thanks! I'm hoping to get at least 140db out of my setup haha. Maybe it would be better if I looked into SQ events instead, since I may prefer to keep my car as a daily driver rather than an SPL car. I dunno. I'll just go and see what happens. Should be fun!

Posted

140 might be pushing your luck.

As for sound quality, that is where you have to know sooo much freaking information about it all.

Good luck!

b_350_20_692108_381007_FFFFFF_000000.png

Krakin's Home Dipole Project

http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370

Krakin, are you some sort of mad scientist?

I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .

What you hear is not the air pressure variation in itself

but what has drawn your attention

in the two streams of superimposed air pressure variations at your eardrums

An acoustic event has dimensions of Time, Tone, Loudness and Space

Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears,

thus no formula can achieve a definite effect for every listener.

Posted

I hit 142.2 dbs@38 wth one 18" on 1200rms.. port tune to 33hz and I did the score at 38hz.. its a sql setup..

Vehicle: 2005 Kia Sorrento Ex

Head Unit: Samsung Galaxy Note 10.1

Mids & Highs: Motorola KSN-1005s & Alpine SPR-17C Type R 6.5s

Speaker Amp: Sony XM-ZR1252

Sub Amplifier: Pure Audio 3000.1

Subwoofer: Incriminator Audio Death Penalty 21"

Posted

did a 143 on the dash on a term lab with 2 t2d412 on a t1500.1bdcp at 45-48hz. 2003 ford focus hatchback 4 door. tuned to 43hz with 64" of port in a 4cuft box after displacement. sub up, slot port up on the passenger side. i could have done a decent amount better i think. less port area to peak at a higher freq, bigger box since i was underpowering, port on driver side. there are other little things i might have been able to do. maybe could have gained 1-2db but oh well live and learn.

t1500bdcp

2 t2d4 15"

1 t600.4

1 t400.2

1 set p1 tweets

singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz.

Posted

im thinking an easy 155 at 32hz bro your lucky you havent blown out your windows

Peaking low ftw

Used to have a loud truck

2009 Corvette Z06, H/C/I, 150 shot, g force tune, 730rwhp/690rwtq

2013 F-150 limited, MPT Tune, leveled on 35"s

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