IFI AUDIO GE5670 Valve Set (Pair with 6922 adapter)

The 6922 tube/valve is one of the most famous ‘dual triode’ designs and is ubiquitous. It has and is still, used in many tube/valve audio products from CD players to headphone amplifiers. First introduced by Western Electric in 1946 with the WE396A, from the 1950s onwards (and for the next 30 years thereafter) General Electric (and several other tube/valve manufacturers) followed Western Electric with their own premium version of 6922. This range had controlled warm-up and tight specifications on grid-current, noise and microphony. The result, significantly smoother and more organic sound qualities. While the 9-pin design was used, the electrical pin outs changed. As such, the GE5670 was not a straight ‘drop-in’ substitute for the 6922. So the GE5670 remain unloved and unused until……2014 when iFi brought out the iTUBE tube buffer/pre-amplifier. From our research of the tube inventories around the globe, we found the GE5670 to be in supply and with surprisingly good sound. While the iTUBE was designed from day one with the GE5670 in mind, we found that customers really liked the GE5670 in the iTUBE but they wanted more…yet because of the different electrical pin configuration, the GE5670 was a no go. The iFi solution was to machine-fabricate a special ceramic adapter with a miniature capacitor circuit to bring heater supply circuit noise (acommon issue) sharply down.

• Original NOS General Electrical GE5670 Valves
• Functional alternative to all 6922 Tubes
• Custom-Made 6922 Adapter with Heater Line energy Filter for sound Reduction
• Precise Temperature and Time-Controlled Thermal Treatment the Rejuvenate GE5670 NOS Valves
• Hand-Picked, 48 Hour Burn-In and Matched by Computer
• Class: Triode
• Replacement Type: Microphone Preamp

รายละเอียด IFI AUDIO GE5670 Valve Set (Pair with 6922 adapter)

• หลอด NOS General Electric GE5670 ดั้งเดิม
• ใช้งานได้กับ 6922 Tubes ทั้งหมด
• อะแดปเตอร์ 6922 ที่สั่งทำพิเศษพร้อมตัวกรองพลังงาน Heater Line สำหรับการลดเสียง
• ควบคุมความร้อนด้วยอุณหภูมิที่แม่นยำและการควบคุมเวลา ของหลอด GE5670 NOS
• เบิร์นอิน 48 ชั่วโมงและจับคู่โดยคอมพิวเตอร์
• คลาส: Triode
• ประเภท: ไมโครโฟนPreamp