Recent content by Moritz Bachmann

Check out Ecoflow and Bluetti too, they make basically the same Batteries, but maybe they fit your needs a little better than others. I haven't tried one of them yet, but I will buy one of their big guys, as soon as I have decided if it will be a Bluetti or Ecoflow. Bad point for Ecoflow is...

I can't compare them to any other handles, but for their usefulness against design, I really like them, yet they have the problem the be on top or the bottom of a heavy box, not just right above the center of mass. Never really used the bottom handles, maybe to go up stairs, and the problem...

Unfortunately no technical updates like measurements or so, but I can share some listening impressions. I´m using the subs together with our Tops, containing an 10MC700ND playing in CB from 100/120-2000Hz and the Mundorf 29CM1.1-R AMT doing the top end. The setup stands in my 25m² living room...

that makes sense, to be on the save side, I set the HPF at 35Hz, which should be 3- max. 5Hz under tuning frequency. I will read the manual, but I don't think I will have time this or even next weekend, so the new measurements have to wait a little

I already thought that the voids in the corners may create unnecessary resonances or sthg similar. Maybe I will fill them up before painting, as you suggested. About the wheelboards- I somehow have a problem with wheels directly mounted on subs... I think this is one of the few points- if not...

I will post measurements as soon as i have time to make some. The ones I did to test tuning frequency were really dirty (no fix mesaurement distances and even bader, a back panel that was hold together with clamps, as I had to be able to remove the pipes through it to make them shorter)...

I've finally built my first self- designed subwoofer. I decided to go for the 15DS115, ~90L net Volume and big ports with 3D adapted flares. The difficult part was actually to make the front small enough that the ports fit within the depth of the speaker, while trying to get as much flare...

thank you all for your input. I think I should give a CB sub a try... with the option to make some BR enclosures later. My main question is now if it pays off in closed box too, to bet on high performance drivers? For a comparison, what drivers would you buy with, let´s say 1000€ : 3x...

Already thought about this one, but for a single cab it's too large, and I would prefer a little more output for less extention

Those are the Hornresp in-/ output for the 12" BP system, I would really like to make at least one prototype for this design, but I don´t know if it isn´t better to spend the time and money into a good 15" BR design...

hey guys, I need some advices/ help on my next project, a subwoofer for a compact PA-Setup. This setup is meant for DJ-Monitoring and small gigs, where really high SPL isn´t required. The Top is not finished, so no measurements here, but it uses a Mundorf AMT and a Beyma 10MC700ND in a closed...

I read this before, but as I'm pretty new to speaker design ect I didn't share my thought's- yet. As physic student (still at the very beginning haha), i would intuitively say there shouldn't be any big losses, as the seperator is infenitely thinn, jexcept in the port section. I imagine more...

The XO will be active, I was using a dbx venue 360 until now, but a BSS Soundweb BLU 160 is on the way to replace it. I will spend a lot of time to test different settings, XO and PEQ for sure, but still I don´t know which steps to go through to align the chassis correct, or how to tell from...

So although we are still busy with our subs we were able to do some measurements outdoor. As we were interrupted twice by sudden rain, we couldn´t test all we would like to. Also, as this is our first speaker design, we don´t know what REALLY matters in the measurements to aligning those three...

bad news: we tried many different seperators, softboard as well as birch ply, in different positions and also clamped the side walls to prevent resonances there, but still we were able to reduce the first buckling at 750Hz only... We then tried to measure the speaker open baffle- we got the same...