[JohnR]

Lookit landed on my doorstep today 

Thanks, Santa Kevin And also to www.audiomarketplace.com.au for their very excellent service

[Kevin Haskins]

How many did Santa deliver?   

[Bob in St. Louis]

Whatcha buildin' John??
That looks like enough boxes for an Infinite Baffle??  aa

Bob

[JohnR]

How many did Santa deliver?   

Ten!  

Bob, four per side in open baffle subs. Probably a little tower with the accordian type of baffle. I tossed up using a pair of 15s or even an 18 (Maelstrom) instead but decided I really wanted to try it with the quad of 10s.

[Bob in St. Louis]

Sounds pretty cool John. I have no doubt you'll be taking photos of the build. 
What drivers on the higher octaves?

Bob

[JohnR]

Well, I think I'm just going to go all out on the main panels, and use a Lambda 15" and a B200. No highpass, the subs will "augment" at the bottom. I've discovered I can get the B200s locally, and I've been, ah, hoarding the Lambdas for years. It was only when reading some recent threads here on AC that I realized what I needed to do.

Kevin's new tweeter looks interesting too, if it really can be crossed at 1k.

[Kevin Haskins]

Well, I think I'm just going to go all out on the main panels, and use a Lambda 15" and a B200. No highpass, the subs will "augment" at the bottom. I've discovered I can get the B200s locally, and I've been, ah, hoarding the Lambdas for years. It was only when reading some recent threads here on AC that I realized what I needed to do.

Kevin's new tweeter looks interesting too, if it really can be crossed at 1k.

To cross it over at 1K will probably require a 4th order acoustic.   I won't know exactly until I do some finished system distortion testing.  Raw tweeter on early samples had <1% THD @ 96dB/1M at 1.5K.   That was without the horn which and a couple other improvements so it has exceptional distortion performance.    I'm also getting them each screened and FR matched so every tweeter goes through a pretty comprehensive testing for FR, and distortion.   I'm paying top dollar for the best Q/C screening available, which is very important to final build quality of any speaker.