6N8P push EL34 Class A single-ended tube amplifier output power 8.5W low distortion great sound | Обустройство дома

6N8P push EL34 Class A single-ended tube amplifier output power 8.5W low distortion great sound | Обустройство дома

6N8P push EL34 Class A single-ended tube amplifier, output power 8.5W, input impedance: 100K, output impedance: 4Ω 8Ω

EL34:

Power consumption of the whole machine: Standard connection: 100W.

Signal-to-noise ratio: Only when the 90DB ears close to the speaker can you hear a little AC lamp noise. Neat wiring and reasonable design, the noise will not increase even when the potentiometer is turned on to the maximum. Proved that the signal interference is quite low.

Input impedance: 100K

Output impedance: 4Ω 8Ω

Output power: standard connection: 8.5W

Power input: 220-230V "110V needs to be customized"

Whole machine size: the front side view size: 365MM. From the knob to the output terminal size: 310MM. Without potential knob and output terminal: 265MM. The highest with foot nails: 190MM. Mounted tube cover height: 195MM

Whole machine weight: 15KG

Packing weight: 16KG

Default AC220-240V input. Other voltages need to be customized.AC110-120V needs to be customized, contact the owner.

Here is the picture of the new version: a new version, European style. Added 3 sets of signal input/increased output terminal/increased 250W power transformer/VU meter to adjust sensitivity and brightness/new feedback on-off switch.

In summer, the temperature of amplifiers, transformers, and electron tubes is high, please pay attention to safety and do not touch them! ! ! !

(The power transformer will heat up when it is energized. Normal working principle. The margin is sufficient, so there is no need to panic)

The sound quality depends on what equipment you use. Some friends have never used it, buy it back and plug in a DVD or directly into a computer or mobile phone, with some predatory cables and a pair of several hundred yuan speakers. No matter how good this paired amplifier is, it can't make a good sound! ! A good system does not produce good sound with just one device. Every thing is important. Including the most important environment! Please be sure to read all the introductions below at least twice before buying. This machine comes with packaging and the weight reaches 15-17KG. This machine is 6L6/EL34, 5Z3P rectifier single-ended tube amplifier for 6N8P. It does not have to be equipped with pre-decoding, as long as a CD, computer, mobile phone can be used normally.

This machine is a real 6L6/EL34 dual-purpose single-ended amplifier. Highlights of product 2: 1: Add dual cathode resistors, dual screen voltages, and switch to dual currents and dual voltages with one button, so that 6L6/EL34 can work at the corresponding required voltage and current, so that both can play their best state. Really do 1=2. Buying one is equivalent to buying two, the specific parameters are as follows. If you have special requirements, you can cancel one of them (do as you require). 2: Increase the negative feedback switch, which can be switched according to the sense of hearing. In the state of no feedback, the gain is larger and the high frequency is also higher. Relatively softer in the feedback state. Chassis process: 1.5 thickened iron plate, welded by bending. It will not change even if 50KG is pressed down. The surface of the furniture is sprayed with semi-matte paint with glitter. First spray the foundation powder and then spray the paint. Many cases will not be willing to spray you with foundation. After spraying powder and then spraying, the durability and oxidation resistance are greatly increased by N times!

The input and output terminals are both gold-plated with pure copper, and the input RCA uses a 3-layer anti-oxidation gold-plated from Taiwan, which is always new. The output terminal uses crystal pure copper, which will not fade after a long time.

Let’s talk about the sense of hearing of the two tubes: This is the general sense of hearing for tubes and single-ended circuits summarized by the veterans of tube amplifiers. "Why do I say this? Because the sound of the audio is matched, different equipment, especially speakers, are equipped with The sound coming out is very different. "EL34 runs under "standard connection", the sound will be relatively clear, the background percussion details are obvious, and the sound field overtones are good. 6L6 is more charming like 6P3PKT66, the mid-frequency vocal breath, nasal resonance, saliva sound relatively emerges, and the high frequency is a little bit convergent compared to EL34, which is rounded. The low frequency power is comparable on the same machine. Under loud sound pressure, the power advantage of EL34 will be lower than 6L6 distortion.

Let's talk about the materials of this machine: The materials used in this machine are all genuine, most of which are imported components, and the transformer has enough margin. The power consumption of the whole machine is 100W, and the power supply is 250W, although it is not very for the old burn. Large, but also enough to use, compared to other products at the same price, the power is even better. The maximum output power of the 6L6 standard connection is 7-7.5W, and the output is 13W, which has enough margin. Try to broadcast the big dynamic low frequency, push the big voice coil single to 42. The control is good, the strength is enough, not soft, and the mid frequency is full . The filter power supply part adopts imported Philips capacitors, no matter the quality of life, the sound aspect is unnecessary, everyone knows. Please see the figure below for other components that are often in the name of 10,000 yuan, so I won't elaborate on them one by one. Regarding the sense of hearing, I won't make too much touching. It can be seen in the word machine. I am very confident in this product, and I also kept one myself. Compared with the two 6J* pentodes I used before to drive 6L6, now I use 6N8P double triode to drive the sound much better. Both the sound field and the mid-frequency are quite satisfactory. Even after an hour of listening, the high-frequency is quite comfortable and smooth without burrs! You can buy it back and savor it carefully. The following figure shows some of the main components in the machine.

In order to make your own style, make a satisfactory voice. From the chassis panel to the scaffolding assembly, we do it ourselves. I was so tired that my waist was bent.

The built-in machine is purely hand-mirrored and symmetrical. The scaffolding has many advantages: easy maintenance, not easy to age, good heat dissipation, large current, high pressure and high temperature, short wiring, less wiring, less interference, and sweet and beautiful sound.