So I got both drivers and some plywood. I plan on putting together an early me-2-me Xmas present.
I will be powering them with either a Inuke 6k DSP or LG clone 10Q / MiniDSP combo.
Each driver will run at 4ohm to a amp channel. I was hoping to run about 1500W into each driver.
Being playing with models for over a week now and getting some strange results between the two programs.
Historically I noticed that most people use WinISD in their models but Scott normally uses Unibox.
Here are the outputs from Unibox
Based on a minimal leakage and stuffed box model, it claims that 118L net should yield around 0.7 Qtc
Here are the outputs from WinISD for 118L box (system power is 3000W, 2 Drivers, Parallel)What is the value of importance one should give to the Ql (Rate of Leakage) and Qa (Absorption) settings ?
Changing these values has a major impact on Cone Excursion and predicted Qtc but I have never seen anyone saying they change these values in WinISD.
Using the WinISD defaults to get a Qtc of 0.7 I need a 210L box. (power reduced to 2000W)
What size box should I be looking to build taking into account
- Qtc in the lower 0.7xx range
- 1500W per driver @ 4Ohms
- Cone excursion below 10Hz acceptable
Need some help and input here from the collective. It is quite possible I can not see the wood from the trees with the solution clearly in front of me.
Should I be modelling the drivers in series
maybe as that provides very different values?