The product parameters are as follows:
Input voltage: 220V 50Hz (other voltages can be customized separately: 100V, 110V, 230V, 240V)
Output power: 5W+5W
Frequency response: 20Hz-20kHz
Input impedance: 100k
Output impedance: 4 ohms and 8 ohms
Signal to noise ratio: 89db
Input sensitivity: 300mv-2v
Harmonic distortion: 2%
Machine weight: 9.65 kilograms
Whole machine volume:
Width 330mm, Depth 270mm (including knob and crystal terminal), Height 210mm
Experience version power consumption: 78W mains power
Power Transformer 165W (96x50)
Output transformer 10W (66x45)
Inductance: 4H140ma
Rectified electronic tube: One new Dawn 5U4G electronic tube, replaced with 274b 5z3p 5z3pa 5u3c electronic tube
Front stage electronic tube: Two brand new Soviet 6h9c electronic tubes, with many interchangeable tubes compared to 6n9p 6sl7
Rear stage electronic tube: Two brand new Linlai 2A3C electronic tubes. There are many metaphors for replacing electronic tubes, such as 2A3 and 2A3b
This machine adopts pure manual point-to-point welding, inductive filtering, and AC power supply for the filament, with very little to no bottom noise.
Considering the low power, it is best to consider speakers with a true impedance of 89db or above and 80W or 90db full frequency. The optimal impedance is 4, 5, 6, or 8 ohms, which can be 3 to 8 inches with 2 frequency division or 4 to 12 inches with full frequency,
2A3C electronic tube is superior to 300b electronic tube in terms of both human voice and details. 300b has a rich charm and coarse details. The advantage of high power. Although the power of 2A3C is only 3 to 5 watts, it is equipped with highly sensitive full range speakers, especially its sound transparency is clearer, and the low frequency is steady and has a breathing sensation. The middle and high-end parts are clear and natural, with particularly outstanding vocal performance (detail resolution higher than 300b), which can clearly feel the singer's breathing rhythm and emotional expression. It also has a wide dynamic range, which can handle gentle and delicate melodies, but is also difficult to handle explosive and strong music segments. The overall flow is natural and smooth, with high-frequency silky smooth and not harsh. The new Linlai 2A3C electronic tube adopts a new process. The low-frequency stability and high-frequency brightness have been significantly improved, and the upgraded nano carbon nickel alloy anode and other processes have effectively enhanced the performance of sound.
