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  #1  
Old 10-23-2010, 12:26 AM
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Default AQ 4 Inch Coil Test Results W/Pics

So I had the chance to do a head to head test between a brand new 18 HDC3 with the 3 inch coil and 18 HDC4 with the 4 inch coil. Both subs were broke in for about a week on music and tones. The box used was 5 cubes with a 12 inch aeroport. Sub up and port back. Car was a 1989 Civic Hatchback with full interior. Mic in legal position on the dash. These are rated to 10,000 on burps so we havent even touched them yet.

1st number is score, second number is clamped wattage.

18 - 3 Inch Coil Results
Peak Frequency - 56 HZ

143.3/385
144.5/489
145.4/639
146.5/844
147.4/1130
147.8/1187
148.3/1571
148.7/1716
149.3/2134
150.1/2956

18 - 4 Inch Coil Results
Peak Frequency - 57 HZ

143.8/346
144.5/405
145.6/522
146.6/685
147/804
147.4/832
148.3/1046
149.4/1478
150.7/1925
152.7/2915
153.1/3345

No results that I can publish on the 15 Inch version.

HDC3 and HDC4

18 - 4 Inch Coil

18 - 4 Inch Coil

15 - 4 Inch Coil

15 - 4 Inch Coil

Last edited by sruggles1976; 10-23-2010 at 01:49 PM.
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Old 10-23-2010, 12:29 AM
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thank you Jasa for the cone?

looks pretty decent so far
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Old 10-23-2010, 12:31 AM
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F'ckin sexy!
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Old 10-23-2010, 12:32 AM
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imo i think the hdc3 is a lot better looking than than the 4" coil hdc3d
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Old 10-23-2010, 12:34 AM
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Awesome
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Old 10-23-2010, 12:34 AM
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I think I just found my new 18's. Mhmmm
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well unfortunately the t/s when they were new will be way diff now.... these drivers are used and beat on pretty hard in there day (not personal use but ive known all the owners and theres been alot)
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Old 10-23-2010, 12:35 AM
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fail double post
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Old 10-23-2010, 12:35 AM
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that motor makes it look like a 15
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Old 10-23-2010, 12:36 AM
Car audio classifieds, stereo sales, subwoofer amps mids classified caraudio, BANNED!!
 
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Quote:
Originally Posted by 813thumper View Post
that motor makes it look like a 15
I thought the same thing!
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Old 10-23-2010, 12:37 AM
Car audio classifieds, stereo sales, subwoofer amps mids classified caraudio, BANNED!!
 
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Cost and production time!!!
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