Suggestions for an "high sensitivity" 2.1 system build

[LF78]

I listened to some high sensitivity / ribbon tweeter systems and fell in love with the sound, so now I would like to build one (to use it for music - not HT). I need some suggestions and/or criticism on the project below: target nominal sensitivity is around 98 dB before DSP and equalization (subwoofer excluded). Thanks in advance!

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Source / active crossover / DSP / volume control:

• miniDSP Flex Eight: https://www.minidsp.com/products/minidsp-in-a-box/minidsp-flex-eight

I need at least 5 channels to implement active crossovers in my scenario (2 tweeters, 2 woofers, 1 subwoofer), so my beloved 2x4 HD is not enough.

Left & Right:
2-way sealed enclosure, tweeter crossed at about 2/3 kHz and woofer crossed at about 100 Hz.

• Tweeter:
  
  • Aurum Cantus AST25120 Aero Striction Tweeter 8 Ohm (100 W RMS / 98 dB): https://www.parts-express.com/Aurum-Cantus-AST25120-Aero-Striction-Tweeter-276-446
  • Monacor AIRMT-130 8 Ohm (60 W RMS / 98 dB): https://www.monacor.com/products/components/speaker-technology/hi-fi-tweeters-/airmt-130/

Which one do you suggest, or are there any better options?

• Woofer:
  
  • FaitalPRO 8PR155 8 Ohm (8" / 200 W RMS / 97 dB): https://faitalpro.com/en/products/LF_Loudspeakers/product_details/index.php?id=101030145
  • FaitalPRO 10PR300 8 Ohm (10" / 300 W RMS / 98 dB): https://faitalpro.com/en/products/LF_Loudspeakers/product_details/index.php?id=101040110

Which one do you suggest, or are there any better options?

Subwoofer:

• Dayton Audio 15" Reference Series (4 Ohm)

I plan to put it in a sealed enclosure crossed at about 100 Hz, which version is it better in your opinion?

• https://www.parts-express.com/Dayton-Audio-RSS390HO-4-15-Reference-Series-HO-Subwoofer-4-Ohm-295-469 (800 W RMS / 92.8 dB)
• https://www.parts-express.com/Dayton-Audio-RSS390HF-4-15-Reference-Series-HF-Subwoofer-4-Ohm-295-468 (500 W RMS / 91.2 dB)

Or as usual, are there any better options?

Amplification:

• Left & Right:

I need 2 stereo amplifiers here, which kind of wiring do you suggest?

• 1 (less powerful) stereo amplifier connected to the 2 tweeters + 1 (more powerful) stereo amplifier connected to the 2 woofers.
• 2 identical stereo amplifiers on the left and right channels, each one connected to the tweeter and the woofer

I really need some guidance here, class A/B or class D? Could you help me to shortlist some possible options? I would prefer bare amplifiers and/or amplifier modules without volume control, as it's not needed in my scenario.

• Subwoofer:
  
  • ICEpower 700AS1 - 700 Watt RMS @4 Ohms: https://www.soundimports.eu/en/icepower-700as1.html

Any better options?

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