How does it sound?
What is good and is there any drawbacks?
Is the "störning" in the cooperation between the bass and midbass section noticeable or does the damping smooth it out enough in your listening tests?
The measurements looks encouraging, but I am still a bit skeptical to parallel high order pure QW alignments.
I am not so sure your Monstera plant loves the "earthquakes" you subject it to. You might need to add some Perlite too the soil to keep it from becoming to compacted from the vibrations.
OK, I now think I have listened long enough to be able to say something about these boxes. I Cross them over at 150 Hz at 48 db/oct which cuts out the ringing at 180 Hz. For the TLBP6 I run a Yamaha P3200 amplifier that gives 2x340 W into 8 ohm.
It made a a huge difference to the soundstage and the stereo image when I brought the second speaker into the Room. I can't say I hear the cooperation problem that the un-dampened measurements shows. I do have some damping wool in both of them and they seem very well behaved. On the other hand, the room-acoustics is playing along quite a bit so to be honest there might be room for improvement on this part. I think that some critical outdoor listening and measurement is needed to pinpoint and figure it out.
Yesterday we had a DIY & vintage meeting where about 10 different DIY rigs where displayed. It was a lot of fun even though I missed you two Martinsson and Circlomanen. I listened to electrostats, magneplans, bass reflex, dipole, ripole, closed boxes and more. The last session of the day was mine.
Despite that is was late in the day and people were getting tired, still, the room filled up with curious people who wanted to listen to what I had built. At first I har the bass turned up a bit to high but it gave effect. One of the first tracks we listened to was Nils Lofgren Band - Drum and Bass Intro. It is a tune where the TLBP6 really gets to shine and I got spontaneous applause when the song ended.
After a few songs I got a nudging feeling that people maybe have had enough. I asked if anyone would like to hear anything more and to my great joy they wanted more. The last tune of this hour long session was Infected Mushroom - Avratz. Its a long song (10 minutes). Halfway into it I faded the music and started to talk but was interrupted by the audience.
- Don’t stop the music, we want to listen to the end of the song too. And turn up the volume to max!
Well, said and done. I cranked the volume up as high as I dared. Higher than I ever played before. About 8 minutes into the song there is a crescendo with massive drums and bass. I could feel the floor underneath me vibrating and the windows were rattling…
I must be cautious with judging my own build as I am biased of cause. But, what a fantastic feeling. So much power, a physical experience that feels in the whole body rather than by the ears alone. Again, I am biased, but for what I can tell the bass is clean dry and precise. As for my current understanding and experience of the speakers, I couldn’t ask for more.
How they compare to THAM, ROAR or any other PARAFLEX I have no idea as I have never had the opportunity to listen to them. I hope there will come an opportunity to do so though. Listening and comparing would be very valuable to understand the different merits of the different construction principles.
Another fun Little episode occurred a few days ago. I had just gotten the second speaker in place and was playing on both of them for the first time. I cranked up the volume quite a bit and then my kids are coming up from the floor below, holding for the ears, asking if I were beating the crap out of some percussions…
Good or bad, I really dont know. All I know is that I love them