Coming soon - A true Single-Ended Class A OTL tube headphone amplifier - Truly warm sound showing off the tubes without any tricks - A tube rolling heaven to explore everything tubes have to offer - 90 drop-in tube rolling options - Over 50 more tube rolling options with a single adapter in the chain
Power Tubes (Drop-In Replacements)
12BH7 (Classic warmth) (Moderate output power)
12AU7 (Soft & relaxed) (Low output power)
ECC99 (Fast & punchy) (High output power)
E80CC (Analytical) (Low output power)
7316 (Holographic & lush) (Low output power)
Power Tubes (Included Adapters)
6N6 (Fast & Natural) (High output power)
6N30 (Natural) (Maximum power)
Driver Tubes (Drop-In Replacements)
E90F (Clean, precise, linear)
EF91 (Fast, analytical, loose bass)
EF92 (Warm, darker, romantic)
EF93 (Slightly warm, smooth)
EF94 (Punchy, clear)
EF95 (Natural)
EF96 (Slightly warm, smooth)
E99F (Linear, Maximum clarity)
12BH7 | 12BH7A, CV5042
12AU7 | ECC82, E82CC, 5814, 6189, CV4003, CV491, M8136, ECC802S, 7730, B329
ECC99 | - (JJ Electronic exclusive)
E80CC | 6085, CV5987, E80CCF
7316 | - (Amperex, Philips medical-grade version of ECC82)
6N6 | 6N6P, 6N6P-I, 6N6P-IR, 6N6P-EV, 6N6T
6N30 | 6N30P, 6N30P-DR, 6N30P-EV, 6N30P-EB, 6N30Pi
E90F | 6BH6, 6265, 6661, 7693, CV3908
EF91 | 6AM6, CV138, CV4014. M8083, Z77, 8D3, HP6, 6F12, PM04
EF92 | 6CQ6, CV131, CV4015, M8182, W77, V884, VP6, 9D6
EF93 | 6BA6, 5749, CV454, W727, 6K4P
EF94 | 6AU6, 6136, CV2524, 7543, 8425, 6ZH4P, 6J4P
EF95 | 6AK5, 5654, CV4010, CV850, M8100, DO61, 6F32, 6ZH1P, 6J1P
EF96 | 6AG5, 6BC5, CV126, 6ZH3P, 6J3P
E99F | 6BJ6, 7694
Hot Surface - Do Not Touch
To avoid burns, let the device cool down for at least 30 minutes after turning off for safe handling.
6N6/6H6P/6H30 Tube Families
To prevent severe tube burn-out, only use the 12BH7 6.3V to 6N6 adapters included with the device. Using third-party adapters will cause the 6N6/6H6P/6H30 tube families to overheat their plates and burn-out within a few hours.Voltage Spike Hazard
To prevent severe damage to the amplifier and connected headphones, never change the driver tube switch position while the device is powered on.