【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
[About clocks that synchronize time via radio waves]
The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful.
Adopting the original TI-NE5532 classic operational amplifier and transistor extended current circuit, using 1300mA high current output transistor operating in class A status, ultra-low distortion, the sound is warm and delicate.
Adopting innovative circuit design, DC 5-20V wide input working voltage, the amplifier circuit can always operate at 26V high voltage, and the background noise index is excellent.
Pluggable op amp socket design. Various op amps can be upgraded.
Strong driving force can easily drive most high impedance headphones such as: HD580 / HD600 / HD650 K701 / K702 / Q701 DT880 / T70 / T90 SR225 / SR325 / RS1e
Please note: Power adapter is not included. We recommend using an original, high-quality power adapter with at least 5W. For example, if you use DC 5V, the current must be at least 1A. If using a DC 12V power adapter, 0.5A or more is required.
Audio input: Stereo L/R RCA
Audio output: 6.35mm headphone jack (with 6.35mm to 3.5mm adapter)
Output power: -1300mW (32Ω)
Matched headphone impedance: 18-600Ω
Frequency response: 20-30KHz
Signal to noise ratio: ?110DB
Maximum output amplitude voltage: 25V
Input voltage: DC 5-20V
Dimensions (W*D*H): 67*93*30mm
Net weight: 169g
Package weight: 210g
packing list
1 * U3 headphone amplifier
1*USB-DC cable
1 * 6.35mm-3.5mm headphone adapter
