https://www.guitarworld.com/reviews/hughes-and-kettner-spirit-nano-series-review
Hughes & Kettner Spirit Nano Series review | Guitar World
Jun 24, 2021 - Do these compact heads pack enough analog magic to hold their own with classic tube sounds?
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https://www.guitarcenter.com/Hughes-Kettner/HK-SPIRIT-OF-METAL-NANO-MINI-AMP-Black-1500000335239.gc
Hughes & Kettner Spirit of Metal Nano Amp Head Black | Guitar Center
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https://www.musicradar.com/news/hughes-and-kettners-new-spirit-nano-heads-could-be-affordable-micro-marvels
Hughes & Kettner's new Spirit Nano Heads could be affordable micro marvels | MusicRadar
Oct 1, 2020 - Vintage, Rock and Metal models with up to 50 watts output power, built-in cabinet simulator and Sagging control