And now let's see some measurements!
Note: these measurements were NOT taken in the final position of the speaker (in the living room next to the armchair) but in my
home office upstairs where I have
this sub already set up
I have just replaced that sub with the new one and took measurements in the main listening position (after res-measuring and re-setting the delay and gain values) + I also did a round of optimization with Dirac Live 3.10.3
Measurements in the final position downstairs with my
main sub in the front integrated will follow probably next month only since I need to buy an amp first to drive this new sub there
Frequency response at MLP (approx. 75cm from the fronts and approx. 3 meters from the sub in the back) using 1/12 smoothing
Delay, gain, polarity set and crossover in place (linear phase, 24dB/oct. at 80Hz)
Blue is without Dirac Live, red is with Dirac Live - note the room mode related dips (not really audible in my opinion)
The same using Psy smoothing:
Distortion:
I would say even with Dirac this is pretty good
GD:
That peak between 80 and 90Hz is there with only the sub playing too so it is room related and not crossover related
Wavelet with Dirac:
I consider this to be fine for a system with a sub
Step response with Dirac:
Note the minor pre-echo due to the linear phase crossover - nothing to be worried about though
Subjectively speaking: it sounds wonderful!
Really, nothing to complain about; extreme fast and precise lows, as one should expect from a sealed cabinet
The difference I hear vs. the other sub I have here is that with this one the bass is less 'meaty' - it sounds less 'full' but it sounds 'faster' and more 'precise' - I am not really sure why but that's what I hear. I love both but this is closer to my taste when it comes to a sub.
Next step is that once I get the amp (Sabaj A30A) I will bring the speaker downstairs to its final location, perform the integration with the main sub and publish the measurements here
And of course the beauty fronts are yet to be done too
Final note: I was really delighted to use my new UMIK-2 microphone here! Making delay measurements was a walk in the park - I was done in literally a few minutes (performed 3 measurements and got the same delay value up to 2 millisec. decimals)