The best integrated I have heard or owned and I have had units for Gryphon, Krell, Musical Fidelity and Naim. It's physically big and it runs warm/hot so it needs ventilation. The sound is spacious, warm, and has stunning musical flow. Despite it being only 37 watts, it sounds more powerful, dynamic and has better bass impact than my old 250 watt Gryphon. It comes with two Shunyata NR V-10 power chords (US$500 each) as this is two seperate amps in one case. There are also Quantum Science Audio Purple Fuses ($700. I have the original packaging but shipping costs will have to be worked out afterwards. It's around 45kgs with everything packed so a pick up would be preferred. Shipping will be available but it won't be cheap.

Here are a few reviews. Please read both parts the stereophile review.

https://highfidelity.pl/@main-770&lang=en

https://www.stereophile.com/content/grandinote-shinai-integrated-amplifier

https://www.stereophile.com/content/grandinote-shinai-integrated-amplifier-followup-april-2021

Details from the Grandinote Website.

Shinai Integrated Amplifier Regular price $16,000.00 USD Grandinote Shinai has refined and charming sound of Magnetosolid® amplifiers. Supreme musical characteristics of Prestigio, dual case 60W amplifier, are transferred in this little masterpiece of 37W for channel. In summary, these are two mono units, enclosed in a single chassis.

• Stereo integrated amplifier
• Power for channel 37W
• Damping factor >150
• Frequency response 2Hz - 240 kHz
• Two unbalanced inputs RCA
• Two balanced inputs XLR (full-balanced)
• Balanced inputs XLR unbalanced convertibles
• Class "A"
• No feedback
• Direct coupling stages: no capacitor used
• Full-dual mono
• Absorption 270W
• Weight 40kg
• W=318 x H=196 x L=473 [mm]