just a quick word of caution. If you look at the worksheets, you will see that I have specified an upper limit of 1 lb/ft^3 on the stuffing density. A curve fit is used to give stuffing acoustic properties that match my test data up to 1 lb/ft^3. I do not have data above this value and the curve fit can go through some severe swings above 1 lb/ft^3. Please examine your results carefully, the accuracy of stuffing density above 1 lb/ft^3 is questionable.
see post #19gmilitano said:
Thanks for the warning Martin. I'll do some measurements to verify the sim when I'm done.
so, enclosures are built... if the weather tomorrow is good enoug to do some routing (I prefer to do this outside to avoid having to clean the house from all the dust, especially with MDF) there will be music by the end of the day 🙂
so, 1st results: impedance only partially matches the sim (peak somewhat lower in freq, but not in ohm), but accoustic measurement seem to be OK, ripple almost gone (some caution, I have some doubts on the quality of my accousic measurement). note: 20 grams of sonofil in such a small tube is really a lot, it's almost completely blocked
will continue later with some experiments on the vent, 1st attempt will be simply halving the length...
and the sound: i'm impressed! without notch (I intend to try the one for the Cyburgs' monitor first), not broken in properly, but already nicely detailed high and amazing bass.. I had not expected a box with an f3 of ~100Hz to sound this large
will continue later with some experiments on the vent, 1st attempt will be simply halving the length...
and the sound: i'm impressed! without notch (I intend to try the one for the Cyburgs' monitor first), not broken in properly, but already nicely detailed high and amazing bass.. I had not expected a box with an f3 of ~100Hz to sound this large
- Status
- Not open for further replies.