After quite a bit of reading and hair-splitting that my job affords me

, the possible candidates for the speaker design seem to fall into the following 3 categories:
High Sensitivity (>96dB sensitivity)
SEOS Dayton-12 Kit (?dB, 28hz - 20khz, Approx. BOM:$600)
Medium Sensitivity (86-95dB sensitivity)
Continuum MLTL (86.95dB, ~40 - 22kHz, Approx. BOM:$350)
ER18 MTM (?dB,?, Approx. BOM:$610)
ER18 MTM - Ribbon (?dB,?, Approx. BOM:$680)
Peerless NOMEX 164 (~90dB,~40 - 20kHz, Approx. BOM:$?)
GR Research N3 (~90dB,~40 - 20kHz, Approx. BOM:$520)
Low Sensitivity (<86dB sensitivity)
Continuum (84dB, 65 - 22kHz, Approx. BOM:$350)
Invictus (83dB, ~30 - 20kHz, Approx. BOM:$926)
The following are the pre-amps and amps under consideration currently.
Pre-amp
Dodd Audio Battery buffer
DC Coupled B1
Salas 6V6
Aikido Octal All-in-one
Arjen Helder tube pre
Amp
Firstwatt F4
Firstwatt F5
Arjen Helder Tripath TA2020
Moskido
Class D Audio SDS-254/258
Ref. C
SYMEF
I am also interested in seeing what comes out of the discussion on
this thread. If a design is finalised and board designed around the TI TPA3100D2 (same as the TBI Millenia), I would be tempted no-end to try one. SET(?) sound in a compact, cooler, cheaper and more powerful package does sound like the bees knees to me.
Ofcourse, all this may have to wait till a decision is made on the speakers.
DAC
Twisted Pear Buffalo II/III + IVY III
Twisted Pear Opus + IVY III
Please feel free to point out any other suggested designs I may have overlooked.