SPECIFICATIONS

Features:
- The electronic tube has second-generation shock absorption technology and is flexibly connected to the PCB board.
- The component architecture of desktop computers is integrated into a small body to achieve HIEND level enjoyment without occupying space. Combined with PSU power supply (optional), it can reach the level of a desktop computer.
- Four channel fully balanced architecture design, supports upgrading to fully discrete Class A, supports single ended upgrade to fully balanced (3.5 output upgrades to 4.4 fully balanced).
- The sunken pin socket technology optimizes the operational amplifier space within a thinner body.
- Supports 4.4 balanced and 3.5 single ended input, 4.4 balanced and 3.5 balanced output, support 3.5 upgrade to full balance with stronger sound quality.
- Function: Supports 10DB high gain and high thrust, supports turning off the electronic tube to use pure transistor mode, and supports electronic tube attenuation.
- Support power connection: PSU-2 (optional); After connecting to the power supply, it can achieve desktop level thrust, and connecting to PSU2 power supply can increase the current thrust output by about twice.

Specification:
- USB charging support: 18W
- Duration: about 9 hours
- THD+N: about 0.0003% (turn off the electric tube); about 0.002 (USB)
- L+R maximum output power: 2000mW (10ohms), 6000mW (+ PSU-2)
- Supported headphone impedance: 5 - 600ohms
- Battery capacity: 5000mAH
- Supported frequency: 5 - 80K
- Product size: 13 x 7 x 2.7cm
- Net weight: about 300g

Precaution:
- When replacing the op-amp, please pay attention to the orientation of the op amp. If it is installed in the wrong direction, it will cause damage to the op amp itself.

option 2:TAP1 PRO Standard Version Fully Balanced Portable HiFi Headphone Amplifier Electronic Tube Amplifier with PSU-2 Power Supply

Package Included:
- 1 x Headphone Amplifier
- 1 x PSU-2 Power Supply

option 3: TAP1 PRO Discrete Version SS3602 Op Amps Fully Balanced Portable HiFi Headphone Amplifier Electronic Tube Amplifier

Package Included:
- 1 x Headphone Amplifier

option 4:TAP1 PRO Discrete Version Fully Balanced Portable HiFi Headphone Amplifier Electronic Tube Amplifier with PSU-2 Power Supply

Package Included:
- 1 x Headphone Amplifier
- 1 x PSU-2 Power Supply