What did you do to your Supra today?

Kiwi Greg

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tadda

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So they have ports put in? I haven't even noticed but I would assume they would be a little tighter bass?
Without ports added, the bass exhaust energy was literally trapped behind the rear panel which created quite of bit of vibrational noise and also muddied bass response...

Adding exhaust ports to the rear panel, along with lining the enclosure walls with wadding, essentially lowered the Q (or damping effects) and resulted in a flatter / clearer bass response... The bass is now deeper, punchier, and far less distorted and eliminated much of the vibrational noise heard....

There are 3 main aspects to this project:
  • The metal walls of the sub enclosures are lined with batting / wadding
  • Foam insulation applied between enclosure and narrow rear panel
  • Exhaust ports added to rear panel
I think what you'll find is that after doing these improvements the OE Harmon Kardon subwoofers are actually quite good...

Side note: The volume of exhaust air released during deep bass sections of music is quite impressive!

How to Improve OE Subwoofer Quality and Eliminate Vibrations
 
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akasonny

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MST intake and dual-channel Blackvue cams installed. Moving forward...tow hooks....
 

RRF985

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I got the Hyper Sonic door guards installed as wind guards on the mirrors. I love this super cheap solution. I think it looks decent and it blends nicely. I'm super happy with how it turned.

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IMG_5667.jpg
 

akasonny

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I got the Hyper Sonic door guards installed as wind guards on the mirrors. I love this super cheap solution. I think it looks decent and it blends nicely. I'm super happy with how it turned.

IMG_5665.jpg


IMG_5666.jpg


IMG_5667.jpg
Best nine bucks I ever spent.
 
 
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