Reposition the Aveburys + Bottlehead 2A3 = Wow !

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So I have been positioning the Aveburys as shown and playing through a DIY F2J clone and the sound was nice, clean and sweet.
 

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Then I built a bottlehead 2A3 SET and the sound is much sweeter, much more 3D. Then one day I decided to reposition the Aveburys so they are toed in, move them back toward the corners, and the backs face the corners and got rid of the file cabinets that were in the corners, it was just an experiment, I was anticipating that stereo imaging will suffer because of being closer to wall boundaries, but wow what a surprise, stereo imaging became much sharper, pin point accuracy. It feels like you can reach out and touch the vocalist. Sound almost like the sound I used to get from a pair of home made 150hz square front horn loaded with FE206E as far as the pin point accuracy goes. The tonality of the A12P and FE206E are no way near the same
 

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Hey! nice rig..good to see some pics of the Avebury. Even if the pics are upside down.

pictures are right side up on my PC, once I use the "Manage Attachment" and select the picture it shows side way or upside down, nothing I can do. I even tried to rotate my pictures file on disk to compensate for the anticipated rotation done by the bulletin board software and it still manages to rotate it the wrong way so I gave up:confused:
 
No matter, it's worth rotating my head to see them. Looking at them makes me wanna put on an animal skin and a helmet with horns.....uuGHH!

Wish I could hear them...I bet they sound HUGE!.. do they sound HUGE?

They do sound huge, but the Sakikos I used to have I think sounded bigger. But positioning the Aveburys facing the corners do expand the soundstage to the point they rival the Sachikos. The Avebury's bass beat the Sachikos hand down. It was the addition of the 2A3 and repositioning that when the magic happened and ever since I look forward every night to go home and listen to some musics. I had a buddy over who has good ears and younger ears, but who is new in all this DIY HiFi stuff and I gave him a blind A/B test between the F2J and the 2A3 to see which amp he prefers, and after the test, he picked the tube amp with no hesitation. He said with the tube he was able to hear more details. In one song, he said he could hear the backup singers in the background that he could not hear with the F2J.
 
Hi Bqc, Dave D., Scottmoose

I have the FE206en's and I am so confused as to which cabinet to build. I like the Aveburys, I was think Dallas II's or maybe Kirishima's (new Sachiko). Any commets you have will be welcome. I am using Decware Zen amp with Metronomes (FE 126en) and the sound is quite holographic. I'm hoping for the same but more bass and larger sound stage. BIB's are not a problem in the WAF dept.

Help
 
They're all quite different, so comparisons are effectively apples / oranges. I try to avoid subjective comments since by nature they don't mean much unless you're a gifted wordsmith, and I'm not.

All three are tuned to roughly the same frequency (mid 40Hz region). Dallas II was designed for the old FE206E, though the current unit should work without problems, and is the most compact of the three. Kirishima is an easy build apart from being large & having a fairly high parts count. The MTM configuration produces a different power-response as you would expect since its radiating & interacting with the room differently / over a larger area, particularly in the vertical domain. Vulcan again has a different power-response given the different termini location, and is intended for boundary loading. So positioned, it is impedance matched to a lower frequency than the other two.
 
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Hi Bqc, Dave D., Scottmoose

I have the FE206en's and I am so confused as to which cabinet to build. I like the Aveburys, I was think Dallas II's or maybe Kirishima's (new Sachiko). Any commets you have will be welcome. I am using Decware Zen amp with Metronomes (FE 126en) and the sound is quite holographic. I'm hoping for the same but more bass and larger sound stage. BIB's are not a problem in the WAF dept.

Help
With the Aveburys in the corners, more bass wont be a problem. Finding Alpair 12Ps will be a problem since MarcAudio drivers are disappearing from dealers' shelves. The 2A3 has just about enough power (3.5 W) to play the Aveburys to satisfying level. Although at times I wish it has a little more reserve. I dont know how Decware Zen's power compares to the 2A3 so it may nor may not have issues powering the Avebury to your liking. The Vulcan with its higher sensitivity may be the answer to your quest. You may want to add a sub to get to the 20s or if size is not an issue, you may want to commission Scott to design a custom Vulcan that is bigger and taller but goes lower:)
 
Thanks for your suggestions. Are there sensitivities for The Avebury or Vulcan?

The Zen is 1.8W into 8ohms stereo which is plenty for me as I don't listen to loud music. The staging is awesome from the amp. Lately I have been toying with the Dallas and looking at the Zen Acousta (Lowther Acousta horn crossed with a Hedlund). I am now wondering if I can make a hybrid of the Zen Acousta and Dallas: preserve Ron's path length and compression chamber but hang it up like the Zen. It would be very difficult to make the box taper in two dimensions but I will try...
 
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