Ok, here is the enclosure part, as i mentioned earlier that it was very tricky to get right, but in the end it made my day.
2.32 Cubes Vented at 28 Hz
1.75 Cubes Vented at 33 Hz (Manufacturer Spec)
1.50 Cubes Sealed
1 Cube Sealed (Manufacturer Spec)
Frequency Amplitude Response
Sysytem Impedance
Cone Excursion
- Enclosure is made by 0.75" Mdf, double baffled.
- Its 2.5 cubes gross/ 2.32 cubes net vented at 26.2 hz (+ - 1 hz).
As you can see in the pictures that I have given it a very tight port area of 1.5" to keep the 40-80hz region crisp. The group delay after 34hz is almost similar to the sealed enclosures and just rises above the SQ threshold of 14ms in 20's region. Which is fine indeed because typical music dont have any info below 35hz except some rap.
The highs region is crisp to blend well with the front stage and lows region are deadly as expected by this kind of tuning and sub potential. It was basically a experiment which went beyond my expectations.
Firstly the holes in the trunk lids were stuffed by polyester balls. After some extreme stuffing, holes were sealed. Lanbo sheet was pasted followed by 1" thick jumbolon. After all this a carpet was installed by the clips on default locations to give the lid a Oem look.
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