Headphones: Neumann NDH-30, Sennheiser HD 660S2, Sennheiser HD 600, Sennheiser HD 6XX, Hifiman Sundara, Koss Porta Pro. Amps: Bottlehead Crack, Monolith Cavalli Liquid Platinum/6DJ8, Monolith Cavalli Liquid Platinum/12AU7, Nitsch Magni Piety. DACs: Schiit Bifrost 2/64. Sources: Wiim Pro Streamer (X2), TEAC PD-301 CD Player. Power: Furman IT Reference 7. Misc: Audio-GD R2R-11 OG.