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About davewantsmoore

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  1. Empathetic here. Back in May our ground floor took > 1 foot of water (including my QPs), including water inside the wall cavities. Luckily the QP were made from marine ply. Just recently the room is ready again to move into.
  2. You're only looking at it form one point in space. Take 10 measurements with it vertical, and 10 with it horisontal from different positions across the room - and see what trends show up. I'm sure you'll find that the vertical orientation is not substantially better. I think the right way to orient the horn, is whatever way lets you arrange the mid horn best (height, distance to QP mouth, etc.)
  3. I see. If what is meant is just rotating the existing sections, and not changing their size and expansion substantially - then sure, that's fine.
  4. Have a look in the first post/pages of the thread .... and there are some simulations of the horn. If you're using a different driver - then they won't be valid for you. If you let us know your driver we can make one for you. Your measurements will also have your room imposed over the top. Honestly, I don't think - unless you are running the QP horn up quite high in frequency ..... that it really matters which way you orient them ..... or that "integration" is a big issue. As long as you have the mid-horn located less than 1/4 WL of the crossover frequency away from the centre of the QP mouth (or even an edge of it).
  5. "Flatter" is not a particular good benchmark to use in this instance.... If anything you should be looking for "more like the predicated response" .... adjusting that for any effects from your room (eg. peaks and dips due to room modes). I wouldn't both standing them up... I guess, is what I'm trying to say.
  6. Woah. I just re-read this - and see how it could be misinterpreted. I mean MY horns are nothing special. As in the photos would look like any other, 'cept there is bracing in the mouth, they're made out of varnished marine ply.
  7. Yep - approx 8ft ceiling. QPs are nothing special. Quite elaborately braced inside the mouth. Low pass response set to 24dB/octave @ 280Hz
  8. My synergy horns go down to nearly 200Hz ... where I crossover to QPs for the next 2 octaves. Although I may move back to sealed boxes, as I can't really justify the space (I have a fairly small room = 300 sq. foot)
  9. A passive filter cannot boost (only cut) .... The same result as the miniDSP can be achieve, you just have to work out where to cut to achieve the same outcome - eg. Claude is suggesting to boost at 300.... the alternative would be to cut everywhere else, and you'll end up with the same shape response.
  10. My room is too small for subwoofers that large. 1 have 5 bass sources, but each takes < a square foot of floor space. (10" drivers)
  11. That was me. Bass has a certain detail and softness to it, which is often missing from low sensitivity IME.
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