Yamamoto A-08S SET Amp w/ 4-ohm 93db speakers

Hello everyone, need some advice from anyone with experience with the Yamamoto A-08S or A-010 Amps. Can either be safely paired with a nominal 4-ohm impedance 93/db speaker? I listen from a fairly near-field position and don’t play very loud.

(PS - I don’t need advice on the peril of pairing a flea watt amp with "lower" efficiency speakers though as I’m well aware of that. The speaker situation will be rectified in the near future either by buying or building one. Thanks)

I got a Japanese friend to email Yamamoto about 2 months back but have yet to hear back from them so I’m wondering whether any Audiogoner can provide me with some insight to my question above.

While we’re on the subject of SET amps, which of the 3 amps below would you guys recommend? I’m pretty much set on choice 1 but am intrigued with choices 2 & 3.

1. Yamamoto A-08S or A-010
2. Triode Lab 45M Set Monos (with upgraded parts, which are TBD)
3. Decware SE84UFO3 Monos

Do be aware that the reason I’m asking is because it’s pretty much impossible for me to audition any of the amps as I’m located in Malaysia. Appreciate any feedback I can get.

Thank you.