Diamond Audio TDX 15’s or Kicker L7’s
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=16734
Printed Date: July 18, 2025 at 6:09 AM
Topic: Diamond Audio TDX 15’s or Kicker L7’s
Posted By: T.Hill
Subject: Diamond Audio TDX 15’s or Kicker L7’s
Date Posted: July 26, 2003 at 8:56 PM
I have already purchased 2 KX 1200.1 Kicker amps for my Expedition but am having a tough time deciding between 2 TDX 15d4's or 4 Kicker L7 12". The Kicker route would give them a rated 600 watts a sub, but some local shops have warned me about some reliabilty issues with the solo's. Either way I go it will be the same price. I know the L7's will get loud, but I want loud and tight. Plus the magnets on the TDX's are beautiful to say the least. Any help...?
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Pioneer DEH-P980BT, Zapco DCREF1000.4,Pioneer TS-C520PRS, Adire Extremis, MTX TA91002, TC Sounds TC-3000 15"
Replies:
Posted By: tdsteele
Date Posted: July 27, 2003 at 7:22 AM
Magnets??what magnets. TDX's use a heatsink design. Personally i've never heard the L7's, but i have the Diamonds and they are amazing subs. Good sq and spl, will just eat up all the power you through at them. I run their CM3 series and i love them to death so i guess i'm biased towards Diamond stuff. Also depending on the box design, you ought to see about the transmission line ports on the Diamonds, it makes for a killer combination.
Posted By: l7sdime
Date Posted: July 27, 2003 at 2:32 PM
truthfully i think the l7 is a better subwoofer. from the solo x to the l7 8 inch they all pound. i have many friends includin one with 4 15 inch l7's in the back of an explorer and he has had no problems and he is hittin about 160 dB. the sq and spl are not lacking in any spot. that my opinion hope it helps wes
Posted By: T.Hill
Date Posted: July 27, 2003 at 3:13 PM
Well, I know there is a magnet inside the die-cast aluminum basket somewhere, so that was what I was refering to. I've heard great things about both subs fomr many people, but just nothing bad yet about the Diamonds. Thanks for the replys....
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Pioneer DEH-P980BT, Zapco DCREF1000.4,Pioneer TS-C520PRS, Adire Extremis, MTX TA91002, TC Sounds TC-3000 15"
Posted By: tdsteele
Date Posted: July 27, 2003 at 4:08 PM
Honestly, im not sure about the magnet on the TDX's. I was told that instead of the magnet surounding the voice coil like on most all speakers it was actually on the inside of the voice coil with the heat sinks on the outside surounding it. I dunno, they have some cutaway pics of them on Diamonds website. Either way they are top notch speakers.
Posted By: bberman1
Date Posted: July 27, 2003 at 7:40 PM
The TDX's are much nicer than the L7's however if you want something that is loud tight and clean, I would check out the Eclipse https://www.eclipse-web.com/products/speaker/sw9100/sw9152.html Titanium series subs.
Posted By: T.Hill
Date Posted: July 28, 2003 at 7:52 AM
Tdsteele: From what I can tell from the website, it looks like the magnet and motor structure are one. They are, like you said, all inside the heat sink. Thats the part that I think look good.
bberman1: I haven't heard the Eclipse subs yet. The only shop here in town that carries Eclipse usually only displays JL Audio, Diamond Audio, and some Virtual Technology subs. They look pretty mean though...
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Pioneer DEH-P980BT, Zapco DCREF1000.4,Pioneer TS-C520PRS, Adire Extremis, MTX TA91002, TC Sounds TC-3000 15"
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