#31
If those 2 6X9's are 8 ohms each, the load at the amp will be 4 ohms
#32
I finally got a response from Audiotec-Fischer regarding the Helix minimum wire size issue. They said 16mm2 is roughly 6ga. So trimming is still the plan.
#33
A pseudo update.
As I mentioned in post 19 of this build, the R53 boot is subject to high temperatures. This past weekend, I installed the DEI material on most of the exhaust shroud material under the boot. After driving, I have recorded body surface temps in the 90-100+ range, a significant reduction from before. The temps on the top of the carpet in the boot area at about the same as other surfaces in the region. I'm pleased with the results. I have before and after pics, I just need to upload them.
#34
Very nice! I like the precautions you are taking to ensure comfort as well as quiet.
Are you not entertained?!?!
#35
Pictures to complement my pseudo-update.
I had to drop the exhaust so I could access all areas of the heat shield.
The material I used is DEI Floor and Tunnel Shield. It withstands up to 1750°F of direct continuous heat and the adhesive side holds past 450°F.
Right side of the heat shield before material. The battery box is in the center. It already has similar material applied.
Forward of the battery box before material.
Aft of the battery box before material.
Right side of the heat shield after material. Small pieces is the theme to adhere to the contours. It took a while to complete.
Forward of the battery box after material, looking from the right side.
Aft of the battery box after material. I only covered the area beneath the trunk area. Further back is bumper and I did not think adding material would help. I may still add material since there is still shield that can heat up.
#36
Nice progress Paul!
#37
Lookin good!
Please leave your comments in the box outside my door, right underneath the sign that reads: Shame T. Llama, phD. Your thoughts are very important to me!
#38
High tech alert, behold, my RTA rig! The mic position is roughy me in the passenger seat. The headrest is in backwards to clear the microphone.
software - RTA from Studio Six Digital
hardware - iphone5
mic - Dayton Audio iMM-6 Calibrated Measurement Microphone
mic stand - wood scraps + weatherstrip foam + headrest attachment points
Typical road noise measurement.
I have no idea how this compares to other cars, but I am guessing its high. Note that the tires are worn and that the rear seats are down which adds cabin noise. I wanted to measure a baseline to get an idea how effective the remaining deadening will be.
#39
That's ghetto-fabulous!
#40
Cool rig!
I hope you're not planning on using it for real RTA though.
Nick
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