Quote:
SteveCallas wrote:
 Maybe a PR makes it easier for a driver to unload below tuning than a port? Ilkka, anything preliminary you can share? |
I don't believe this is the case. Of course I can't be 100% sure because I was using a HP filter during the GP session.
But I did notice that the measured frequency response doesn't match the simulated response as well as with the 270L LLT I measured earlier. The LMS/
PR starts to roll-off sooner than the simulation shows, as if the Qmp of the
PR's was really low (around 1). The -6 dB (+/- 3 dB) frequency for the LMS/
PR was around 18.5 Hz. And this was without any HP filters/EQ. The measured tuning frequency was 16.1 Hz. The LLT did ~13.5 Hz (-6 dB) with a 16.5 Hz tuning. I'm thinking 200 liters is too little for the LMS/
PR combo. Something around 250-300 liters should boost that low end quite nicely.