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6H8C FU50 Tube Amplifier Single-Ended DIY SET or Finished Lamp Amp 10W*2

Name: 6H8C FU50 Tube Amplifier Single-Ended DIY SET or Finished Lamp Amp 10W*2
Brand: BRZ-hifi-audio
Price: 161 USD
Availability: InStock

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Description

Features:

The FU50 is double Pentode, the sound is very close to 300B tube, so it's called also little 300B, sweet and full warm vocal flavor
6H8C preamp tube is a double triode, have more sweet warm sound,full tube flaver, it works well with Pentode or Tetrode in order to create some mixed behavior

Parameters:

Preamp Tube: 2x 6H8C,
Rectifier : 1x 5Z3P(or 5h4c, 5u4g)
Power Tubes: 2x FU-50 (GU-50)
Rated output power: 10W × 2 (8 ohm)
Frequency Response: 20Hz ~ 30kHz ± 1db
Total Harmonic Distortion: <1% (1kHz, 1w factory condition)
Input Sensitivity: 2V
Input impedance: 100KΩ
Power transformer: 96*50 160w
Output transformers: 66*45 13
Output Impedance: 4ohm - 8ohm
SNR: 89dB
Dimensions (W × H × D): 360 * 230 * 50cm
Weight: about 10Kg with packaging
Input voltage: 110-120v or 220-240v, 50-60hz

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.

6. If you donot sure how to plug the tubes, please contact us before try it

Speakers connection

All tube amplifier used with stereo mode: L(left) and R(right) speakers.
Normally there are 6 speaker cable connectors: +8L, +4L, -0L, -0R, +4R, +8R
Example: +8L and -0L are for connecting with your Left 6-8ohms speaker
-0R, +4R is for connecting with your Right 4ohms speaker

Tube amplifier guaranty :

Tube amplifier Guarantee: 6 months for tubes sold with amplifier, 1 year for the amplifier and tube

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