1 pair HOOD-JLH2003 22W Pure Class A Audio Power Amplifier Board Gold Sealed Tube Dual Channel Upgraded JLH 1969 T1499 |

1 pair HOOD-JLH2003 22W Pure Class A Audio Power Amplifier Board Gold Sealed Tube Dual Channel Upgraded JLH 1969 T1499 |

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4,8

All stars

Arrived quickly, a week and a half ahead of schedule. Without damage. The boards are neat. Made well from the outside. But the flux is not washed from below. Although the soldering is good. Now about the transistors of the output stage. It seems that they were soldered from the equipment of Phantoms shot down in the Vietnamese jungle 50 years ago, and then for another 50 years they were driven in a draft cart through the same jungle right up to Shanghai. This is expected, since the board descriptions indicate that second-hand transistors. But they're very scary. For the rest of the moments I will supplement after installation.

Hello. The amplifier is good, really a thing, sounds a little better than the early version of JLH 69. Quality boards, lead-free soldering, Rifa and wishai Ero film capacitors. There is a current imbalance of the original 2N3055 output transistors, but this is not critical, their performance is also good. Sound source used DVD player, budget acoustics dlialog w204.

I put the boards, powered it-25 in. current for each transistor 500 Ma is recommended-18, but more can be done. The boards are made and sealed professionally, taking into account safe soldering and further upgrade. emitter resistors for convenient current setting Voltage drop on them, you can put on 0.1 or 1 OM. I still selected the output transistors in fours for myself in terms of gain. The sound has a sense of character, greater stereo separation, wider bandwidth, and enough sound power.

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