Originally Posted by thathertz
Please take some time to think about this.
What is your ultimate system? (Ending with headphones or speakers).
Assuming digital input!
Source > DAC > AMP > Headphones/Speakers.
Speakers are a whole different world for me now (the last speakers I owned were Mission MX5's).
I saw your OB speakers at the last meet..(in my browser unfortunately) ...were they based on the Lampizator specs?
Look forward to hearing about your Ultimate system :)
Assuming digital input - where I could use digital PEQ:
An MSB DAC or the AG-D M7/OR5. I'm still due for a shootout to see how close it may be. The MSB Analog may not be resolving enough for me. Unfortunately, I don't want to spend $20K for a better MSB. Getting an MSB DAC is like buying a Porsche. By the time I get all the options I want, the Cayman (the real Porsche since the 911 is so bloated now) is $120K.
Eddie Current 445, otherwise known as the "God Amp". Only five made in the first run. Don't know if there will be any more. 4 x 45 tubes. Will be running EML Meshes. Only 3 watts per channel.
A new high-efficiency open baffle design. The OB speakers you saw in the Bay Area Meet thread were a proof of concept using Moth Cicada drivers I had on hand and cheap $70 15" stamped frame woofers from PartsExpress. I slapped the thing together the week before the meet (although I had already done some of the design work / simluations keeping the Cicada drivers in mind months ago.)
I'd probably go a three for maybe four way for the final design. Aura NS18 18"woofer, Fostex FE208EZ 8" for mids, and Fostex FE108 4" for the highs. The 4" is a strange choice, but there isn't 2" driver / tweeter with the range and efficiency I want, unless of course Donald North designs one, which would be cool. I still need to evaluate a few more drivers to make a final decision. The Acoustic Elegance Dipole15/18 seem interesting as well. Since I would have digital EQ at my disposal, I would just run single caps and coils for the crossover circuits to keep them as simple as possible. Crossover components are evil.
The system would be bi-amped with the 445 powering the mids and treble. Reasonable priced but powerful solid-state (such as the Crest CA2 power amp) would handle the woofer amping duties.
Edited by purrin - 3/4/14 at 5:56pm