100% 正常
新淨無花
推Sennheiser HD650, Grado RS1e 等高低阻耳機絕配。換了新機所以放售。
單端 零反饋 輸出牛 電路
Single ended, zero-feedback, transformer coupled parafeed circuit
+$500 送兩對 測值&年份配對NOS膽連盒 (價值超過$1500)
1) EI EL84
2) Valvo EL84 D getter, 50年代 Sittard factory (X-code)
跟原廠牛 (美標)、原廠膽 (新產mullard)
https://hagerman-audio-labs.myshopify.com/products/tuba-vacuum-tube-headphone-amplifier
https://forum.hifiguides.com/t/hagerman-audio-labs-tuba-headphone-amplifier/9752
https://positive-feedback.com/reviews/hardware-reviews/hagerman-audio-labs-tuba/
有興趣師兄pm留WhatsApp。
Thanks!
Kevin