I designed and built these open baffle speakers using dual MarkAudio Alpair 12Ps from 150Hz to 3,000Hz, GRS PT-6816-8 dipole planar tweeter and a front and rear (of the baffle) Jamo powered subs operated in reverse polarity from each other. There are two 15" subs in the front corners of the room. Everything goes through DSP for levels, polarity, delay, crossover and EQ. The mids are direct-drive and there's only a single passive 39uF film cap on the tweeter for DC protection. Each driver in the system gets its own power amplifier channel. On the floor, an Aiyima A07 for the mids and an A04 for the tweeter. (The mids and tweeter have 94dB 1W/1m efficiency.) This is all the front end of a 7.2.4 Dolby Atmos system.
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