YAQIN MC-100B KT88 HiFi Vacuum Tube Push Pull Integrated Amplifier, HiFi Valve Tube Pure Amplifier, 110V/220V, RCA Jack x 4 Input, 50Wx2 / 25Wx2 Output, KT88/6N8P/12AX7B Tube AMP

YAQIN MC-100B KT88 Push-pull tube amplifier HIFI vacuum tube amplifier

Transformer use silicon steel and oxygen-free copper, to ensure a clean and strong signal from input to output with no static and an extremely low noise floor.

Specifications:

Output Power:
Ultra-linear: 50Wx2 (8 ohm)
Triode state: 25W x2 (8 ohm)
Tubes: KT88 x 4, 6n8p(6SN7) x 4 and 12AX7 x 2
Input sensitivity: Integrated 0.25V Power 0.6V
Frequency: 5Hz~80KHz (-2dB)
Signal/Noise Ratio: ≥90dB
Harmonic Distortion: 300mv
Audio Input: 4 groups
Audio Output: 2 groups
Input impedance: 20Kohm
Colour: Gold Body & Dark Green
Size: 18.5x15x8.2in(Deep x wide x high) ​
Product weight: about 59lb
Package weight : 66lb
Input voltage: 110-120v or 220-240v 50/60hz available.

Tube Amplifier Precautions

1. Tube amp must connected with speakers before turning ON. Strictly prohibit send signals to amp without connected loads(speakers) or load short circuit when the switch is ON.

2. Too high or too low power supply voltage does irreversible harm to the amp,preferably less than 5% of the specified voltage. If your mains voltage exceeds this value, often best to use with the AC power supply.

3. Temperature is higher when tube amps working, placing attention to ventilation, cooling.

4. In the boot or just shut down for a period of time (within 30 minutes) Do not spill liquid on the tubes.

5. You should take about 100h time to operate the amp.RUN-IN to the amp gives it’s best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method.