Originally Posted by Gorilla83
We (OK - Jake/Chopshop did the grunt work) recently discover that if we get 10k in purchases in BMS gear we qualify for 30% off their stuff - I believe anything in the catalog. That should help add fuel to the fire if a few of us decide to go down that path.
I've got Iwata-300 and SEOS-24 horns on order from Erich at the moment from Poland. The Iwata-300 is a 2" horn that I was planning to try out my JBL 2446 2" CDs that I got for less than $100 each that I put upgraded beryllium Truextant diaphragms in. The SEOS-24 is going to be the 1.5" version to mate up to JBL 2447 1.5" CDs, again with the beryllium Truextant replacement diaphragms.
Each of these CD/horn tops are going to be interchangeable (along with outboard crossover boxes for each design) thanks to JBL 2509a mounting brackes on top of the main woofer box holding AE TD15M woofers (when phase plugs show up) run as full range in room as possible. I'm also still waiting on AE TD15H woofers from the group buy. They are going to be the rest of the bottom end if the TD15M won't go full range enough in room once room gain is factored in. They will be run off a Crown XTI 2002 and I'll use the internal DSP to even out any frequency anomalies and use the crossover in it to lowpass the TD15Hs off at the point that the TD15Ms drop off on their own full range. I'm going to take advantage of the xmax on the 15H to push them a bit into the near sub bass range they may not want to go because I won't be using anywhere near their power limit given that my max volume listening levels are very modest/downright quiet by this forums standards
Plus these are for two channel music only and I generally hate subwoofers no matter how perfectly EQed.... so we'll see how this works out...
The only other CDs that intrigued me to try besides this mutant JBL combo were the BMS drivers. Since I'm still waiting on horns and group buy woofers to arrive before I can even start on crossover design, I don't even know if I'll like the JBL mutant CDs or any part of this foray into DIY high efficiency speakers. I've heard enough promise in the various iterations of the SEOS designs we've built to push forward though and at least try a couple more options before moving on... With only really two rooms in the house now (thanks to baby taking over the rest of the place) to put speaker systems safely instead of when I used to have 8-10 different systems in every room of the house, good enough for the money won't cut it. I want to push the boundaries and find a combo that permanently evicts the other options I have to choose from in the commercial realm. If it doesn't happen, no biggie. It will have been a fun experiment. The joys of audio is that its so subjective and there is something for everyone.
Anyways, that is a long rambling way of saying that I'm in if it happens. I was going to look into what it would take to get better pricing on the BMS stuff at some point if the JBL didn't work... but if you get a group together, it might be easier to just get the easy 30% discount and skip the grunt work of digging into it. I'm in for a pair of 4592ND 2" coaxial CDs and a pair of 4595ND 1.5" coaxial CDs so I can hear them on the Iwata and SEOS 24 horns I have coming... let us know how it progresses. Thanks!