Description

The finished machines in our shop are custom-made. It is not easy to find a professional electrician. It takes 1-2 days to make a machine. Once an order is placed, it will not be returned or exchanged!

This machine has a higher fever level, so there is no built-in Bluetooth receiver. In order to satisfy some users who do not have digital players and other equipment at home, a fever 5.0 Bluetooth digital receiver can be added. Buyers who need it can contact customer service to buy!

Introduced 2021 new high-power EL34 tube tube amplifier power amplifier kit.

Advantages of this kit:

1. Develop a new laser cutting, electrostatic spray case (two-color optional)

2.5 electronic tube installation positions, support adapter board, adapt to various circuits, easy to upgrade in the future.

3. Double vu meter design, and the lining structure is adopted to prevent the meter head from protruding.

4. Independent volume control for the left and right channels to avoid the volume difference caused by the wiring of the circuit.

5. Reproduce the circuit designed by Japanese enthusiasts, the circuit design is reasonable, and the sound quality is good.

6. The components are all imported components, Seiko capacitors from Japan, high-quality 5-color ring metal film resistors from Taiwan, and Weimar coupling capacitors from Germany.

7. Large-capacity inductance filter, the sound is more pure

8. To be added...

Electronic tube composition structure

As long as the buyer follows the actual Dapeng map issued by us, the noise and hum of the finished machine will be basically absent.

Rectified by 5Z3P, the front stage promotes Sugon 6N9P (or 6H9C imported from the Soviet Union) power tube adopts Sugon or EL34-B

The machine power is 20w (2x10w), which is equivalent to about 80w~120w thrust of the transistor stone machine. Regarding whether your speakers can be promoted: It is related to the room size and personal listening volume preference.

Regarding the power level, and whether it can promote your speakers:

The power of the single-ended amplifier of the tube amplifier is generally 3W-30W (common). Because it works in the Class A state, the load capacity is stronger than that of the transistor, so a few watts of power can still drive the speaker (except for speakers with low sensitivity). The demo video is a pair of 2x150w dual 6.5-inch floor speakers. The room is more than 20 square meters and the volume is 45%, which is already very loud!

The amplifier should be equipped with speakers and the effect is very good. EL34 has a mellow and natural tone, mellow sound bottom, sweet and warm, especially when listening to human voices, it is very rich, transparent and durable. It is more suitable for listening to human voices, piano sounds, strings, guzheng, etc.

Package list：

:

Finished machine display:

The chassis adopts CNC laser cutting and electrostatic spraying process, no matter the texture, the craftsmanship is far better than the stainless steel chassis. At the same time, the cost is much higher.

Friendly reminder

1. Tube DIY requires certain basic knowledge. Our shop will also provide circuit drawings, physical scaffolding drawings and a full range of technical support services. As long as you are careful and patient, you can succeed.

2. Our shop sells DIY products, machine-opened stainless steel case, manual bending, manual polishing of both sides of the wood board (the wood color of the wood, buyers can paint according to their own preferences), it is difficult to achieve perfection. If you have any comments or suggestions, please contact customer service and we will try our best to resolve them.

3. This amplifier does not contain power cord and audio cable, because the quality of this product is uneven, and each buyer's requirements are different, so we recommend that customers match it by themselves.

4. Since the electronic tubes are all stocked in the last century, we will adjust the electronic tube brand according to the inventory, including the original parts, if there are upgrades and replacements, we will not notify you!

5. Before shipment, we will check all the original parts as much as possible. As long as the buyer is welding in accordance with the assembly drawing, they can speak out. Customize the product by hand. Once welded, it will not be returned.