School bus / Tiny Home Speaker Recommendation?

NHT Zero.

Budget for the speakers amps et cetera?

DeKay

How about some active KEF LSX II speakers. These are small and supposed to be great.

LSX II | KEF USA

If you can get them to fit, LS50 II (the active version with Meta). The KEF KC62 sub would be a breeze to integrate (even wirelessly) with the sub and the LS50, not sure if the LSX has sub integration. I have the passive LS50 Meta and KC62 sub in my small office and I love it.

LS50 Wireless II | KEF USA

KC62 Subwoofer | KEF USA

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If you really want to get killer sound and ignore the dimensions of the bus, this will beat every suggestion offered including my KEF suggestion.

True Ribbon Headphones & Amplifiers | RAAL-requisite (raalrequisite.com)

- RAAL SR1a and / or CA-1a headphones. The SR1a is like 2-channel and the CA-1a is so shockingly powerful and like traditional headphones.

- RAAL-Requisite VM-1a headphone amp ($6.9K)

- RAAL-Requisite HSA-1a headphone amp ($4.5K)

- Schitt Jotenhium R headphone amp ($500)

The VM-1a amp will give you reference level sound. Some say the best headphone sound regardless of price. I do not have much headphone experience to compare. The SR1a are not like headphones though, more like 2-channel. It was better than my 2-channel speakers in my small office so I sold the speakers.

I like a cheap bright DAC with the VM-1a (Benchmark DAC3B). With the other 2 amps a warmer DAC is preferred.

BTW - I have both the SR1a and the CA-1a. I use the CA-1a when laying in bed and the SR1a when sitting up at my desk. 

For your small living room area why not consider using only two speakers with small sub? Have another set up front in driver section need not be the same speaker. Use an amplifier having two pairs of speaker outs that are selectable. 

What is budget?

yyz:

Your headphone rec reminded me of Otto Mann on The Simpsons.

DeKay