I should add the Wolf Ear Audio Kitoki V2 Single End tube amp from Canada. The 2 watter sounded incredible here. The V2 is the newer 5 watter.
https://www.wolfearaudio.ca/products/kitoki-v2-0-5w-single-ended-stereo-amplifier?variant=38476967233Product Description
5W, Class A Single Ended Stereo Amplifier
All our amplifiers are hand-made with great care and are point-to-point wired.
This amplifier is very minimalist and is made using only the best parts and great design, such as Teflon coupling caps and a stepped attenuator (built in-house) that comes standard with every Kitoki.
It's because of this that the Kitoki is so fast, natural and honest sounding.
Use it with your favorite high-sensitivity speakers with this amp!
Some more info on the design
This amp comes standard with a series-type stepped attenuator (made by us), which is leagues ahead of any potentiometer in terms of noise and accuracy.
The driver tube is a single, very linear 6N6P tube with active loading for maximized gain and linearity!
The output tube uses the EL84/6P15P-EV/6P14P-EV types with a constant current output stage for lowest distortion and consistent results over the lifetime of the tube.
Teflon capacitors are used to couple the driver to the output stages. These come standard with all Kitoki amplifiers. There are no upgrade options for this.
This amp also doesn't use any feedback loops, so the sound is very natural and open.