I built John Krutke's Zaph Audio PC speakers. Easy build and sound surprisingly good.- www.zaphaudio.com/audio-speaker18.html They're being power by this nice little Lepai plate amp from P.E www.parts-express.com/lepai-lp210pa-2x30w-60w-21-channel-mini-plate-amplifier-tpa3118--310-4002 The gain on the little thing is pretty high, so having to turn the volume down to about 1/4-1/3.. I'm using a laptop PS rated @ 19v, 4.7 amps. I tested with another PS- 19v, 2.8 amps that worked fine & believe it would be ok. I decided on the higher amperage PS so it wouldn't clip, Tested some Polk 4" 2-ways & Monitor Audio 3i 2-way (88db) and it drove them with no problem. The sub unit is not finished yet- monitor audio 6.5 bass woofer in a 0.5' cabinet, needs a vent tube. Presently using cheap old Logitech sub unit (not so good).
My Dell Ryzen came with MaxxAudioPro app that has an equalizer allowing me to dial in 2.1 system. I was watching some youtube music through Behringer U-Control DAC and my wife thought I had the Denon stereo on until she walk in my office. So I guess it will work.
I would also recommend the Lepai for a bedroom LCD TV or patio build. Give it a try, it's a cheap project.
Thanks for sharing, great "learn by doing" project. The author does a great job in explaining the theory and thinking process behind his design choices.
At the end the speakers are really a 2-way system with the woofer in a separate enclosure, but nothing wrong with it.
I have always been a big fan of physically "decoupling" mid-highs drivers from those for lows. It is very rare that the exact same spot for speakers will give you quality deep bass and good imaging/sound stage.
Since I got a sub I have used it crossed at 80Hz also with music in stereo and never looked back.
Music Lover On A Tight Budget ----------------------------- Emotiva Fusion 8100 Ascend CMT-340 SE Mains Rythmik L12 sealed Sub