Yes there was a lot of experimenting in the baffle shape and size. The gap between the sub and the tower is just to prevent transmission of vibration from the sub to the tower. The shape of the sides of the sub is purely looks, not only to give the sub some character but looking from the front of the tower the sub behind it is not visible at all. In this configuration the sub is extremely transparent. It doesn't sound like there is a sub at all, but tonally everything is there. In fact with this configuration the fullrange also disappears into the sound stage. Everything is very focused and detailed but nothing appears to be coming from the speakers themselves. The system also does not have to be bi-amped. There are no extra xover components to "match" the output between the sub and the fullrange. I didn't want anymore in line than had to be. Just a simple 6db high pass on the fullrange and 6db low pass on the sub. In the end the network is very simple......it just took a lot of work to get there.
Great project! Does a setup like this need a lot of room around the speakers to sound good?
I would love to try open baffle but knowing my girlfriend it 'll be impossible to get speakers in the right position .
1982 Porsche 911 SC, Pioneer P88-RSII active 2-way front + sub, Genesis Series III 4 Channel, 1&2 to Hertz ML 1600 woofers, 3&4 bridged to a JBL GTO 804 sub in the front trunk, Vifa XT25 sc-90 04 tweeters powered by a Genesis Series III Stereo 60.
I have tried the sub in several different configurations none of which caused any problems with the fullrange. Only changed the sound and transparency of the sub. Any reflections are either too high in frequency and/or too low in amplitude to notice a difference in the listening position.
I have to give props to Scott for his great skill and design work on these speakers. I to have heard them in the design phase, and they sound just as Scott has decribed them. Very impressive. Wouldn't have believed until I heard it.
Well, it's been a while but I will be delivering these to the painter this week. We are going to do some samples first to make sure of the colors and finish. I think I have decided to go mirror high gloss finish on the wood inserts and black with a satin finish on everything else. I will post more pics as things progress.
I decided to take things a step further. While the speakers are getting painted I will be building an amplifier for them. I bought a "class D audio" amp kit a while back and have never put it together. figured this would be the perfect application for it. The chassis will be made of aluminum. Here are a couple of pics of the wood mockup I made first in order to get the look and dimensions right.......plus wood is cheaper to experiment with than aluminum. There will be two amplifiers, one for each speaker.
Awesome build, between these and the Orions I am leaning more towards the OB idea. How is overall SPL? Are these dynamic enough for serious home theater duty? I refuse to use a center speaker and these may seal that case for me.