I have 4 Paradigm Pro P80-R ceiling speakers each separately wired to an amp location in my new office after a huge home addition. I also have 1 Rythmic A370PEQ3 subwoofer and am considering getting another. My office is 30' x 15' with cathedral ceiling reaching 10' 4" at it's peak. Speakers need at least 80 W continuous with 92 dB sensitivity. I now need an amp/integrated amp or separates. I'm looking for warm, rich sound at low or high listening levels, with clear vocals. Do not care for "bright" sound since it's fatiguing to me, but don't want muddy bass either. This system is primarily for music, with inputs from my desktop computer, Kindle, iPhone and HD steaming music service. I may hook the audio from my TV up to this system, but am not interested in surround sound. From what I read, I need significant headroom over the 80 watt continuous for each of the 4 channels to get that rich, full sound at low listening levels. After informing Grok of the above, I got the following suggestions:100-150W/ch (2ch driven); Prioritized Class A/B amps for warmth and low-volume finesse over efficient (but sometimes leaner) class D; HDMI ARC/eARC for TV, multiple digital/analog inputs, Bluetooth/Wi-Fi streaming; Dual pre-outs (or mono summed) for 1-2 Rythmiks; no high-pass needed as your mains handle mids well. Use speaker wire runs to treat the 4 speakers as 2 stereo pairs (e.g., front/rear zones) or a wide stereo array. There is no place to look/hear equipment anywhere close - live on a farm in Iowa. Does anyone want to comment on the suggestions Grok gave me or give me your own recommendations along with specifics? New/used makes no difference to me. Thank-You.