Hotone's Nano Legacy 5w amp heads pack a lot of punch for a little package. This Siva Boogie (named after the iconic amps) is terrific for sparkly clean tones and a gritty drive at higher volumes. Send and return fx loop works great for ambient effects in particular, the headphone out jack works perfectly well with passive and active headphones, and the aux in port delivers nice clean listening for a backing track or whatever else you need.

Controls:

Gain
3-Band EQ: Bass, Mid, Treb
Volume

It doesn't come with a power cable, but it's just an 18v Centre Negative Boss style jack. Also works well when connected to a beefy power supply with other pedals, but watch out! it'll hoard the whole mA draw if you have any needy pedals.

Bought used, unmodded. I added pedalboard velcro, but it doesn't get in the way of the rubber feet and can be pretty easily removed if you prefer.