This is a special amplifier for headphones, which is used for headphones. 2017 new upgrade, all aluminum alloy brushed process shell. Built-in large-capacity lithium-ion polymer battery, compact and portable at any time. Adopt famous machine circuit, audiophile grade materials, pre-amplifier for tube preamplifier, post-amplifier triode amplifier, pure analog circuit, strong driving force, sound quality fever, can enhance the performance of music details, enhance the sound field, remove digital taste, is one A close-fitting companion of high-quality headphones, compatible with 99.99% of the headphones on the market. 16-600 Euro headphones can be adapted. Designed for enthusiast enthusiasts.
(Due to product upgrades, some materials may be different from the pictures, but the quality levels are the same, so no further notice)
Basic parameters
Output power: 500mW
Output impedance: 16~600 ohms
Input level: 100~500mV
Frequency response: 15Hz~30KHz
Signal to noise ratio: ≥107dB (input short circuit)
Distortion: <0.001% (T+N 1KHz)
Life time: about 3-4 hours (life time is related to headphone power and volume)
Product weight: about 280g
Product size: 110mm*71mm*25mm (length*width*height)
1. Headphone jack: The standard 3.5 stereo headphone jack is compatible with 99% of the 3.5 stereo headphone on the market. If you use 6.35 headphone jack, you need to purchase an adapter jack separately.
2. Power indicator: There is an LED indicator on the power switch. When using the built-in battery, the green light will turn on when the power is turned on, and turn off when the power is turned off. If the charger is plugged in, both the power on and off lights up red, prompting the user that the charger has been plugged into the amp.
3. Power switch: the switch is designed to toggle up and down, dial down to shut down, dial up to boot. It needs to be turned off when charging, otherwise the charging time will be prolonged, or the battery will not be fully charged.
4. Volume adjustment: the volume increases clockwise, and the volume decreases counterclockwise. Please turn down the volume before turning it on, and increase the volume according to the sense of the motherboard after turning it on, so as not to damage the hearing of the ears or damage the headphones.
5. Audio source input: The audio source can be connected to mobile phones, tablets, computers, mobile players, CD players, etc. Please use the corresponding audio cable to connect.
1. When the power indicator flashes on the amp, the battery is low and needs to be charged. Lithium batteries have no memory effect and do not need to wait for the battery to run out before charging.
2. Shut down and charge as much as possible to ensure that the battery is fully charged.
3. The indicator light on the charger is red when charging, and the indicator light on the charger turns green when fully charged.
Precautions
1. Only use the matching charger to charge, do not connect other power sources randomly to avoid damage.
2. Due to the high gain of the amp, please turn off the volume and turn it on again to avoid damaging your hearing too much.
3. The sound will enter the normal state about 1 minute after power on. Because the tube needs to warm up the sound to be good.
4. It is normal for the tube to generate heat. This is a normal phenomenon. Be careful not to block the heat dissipation holes when using it.
5. It is recommended to burn the machine at a medium volume for 24 hours after receiving the goods, and the tube products need the sound of the machine to reach the state.
6. The product has a built-in battery, so it cannot enter water, squeeze, knock, or throw into fire. Do not place it in a humid, high temperature, or dusty environment.