Yamamoto Sound Craft A-06-3 AD1/AD-1M Single Stereo Amplifier
Product code: a06-3-1Yamamoto Sound Craft A-06-3 AD1/AD-1M Single Stereo Amplifier
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It will be a made-to-order product. The estimated delivery time will be around 5 months.
Modern reproduction of the AD1 vacuum tube made in Europe
Europe's Magnificent Sounds – Emission Lab AD1
This is a single stereo power amplifier that uses the AD1M, which is a modern reproduction of the famous vacuum tube AD1 made in Europe. It uses a single two-stage amplification amplifier system that maximizes the appeal of the output tube, and the drive tube has a long life, and the high-reliability C3m vacuum tube realizes clear sound over the entire band. The current regulator circuit is used for the power supply part, resulting in a clean and energetic sound.
Single stereo power amplifier using AD1M, which is a modern reproduction of the famous European vacuum tube AD1
In order to take advantage of the characteristics of the triode output tube, a maximum output of 4W × 2 is obtained in a single configuration as a simple circuit configuration. Vacuum tubes can be selected from Emission Lab and TELEFUNKEN products, so you can take advantage of the characteristics of each.
The rectifier tube is also a European vacuum tube AZ-4, which is the same side contact type as the AD1, and all vacuum tubes are unified with European products to create a European sound. A self-biasing circuit is used to ensure stable use of valuable AD1/AD-1M vacuum tubes, and the non-feedback configuration brings out the characteristics of the AD1.
It is equipped with an ammeter that allows you to check the current of the output tube at any time.
The capacitors are polypropylene film capacitors that respond quickly and have low distortion, and all transformers are high-performance Hyvy type original cut core transformers and Teflon insulating paper in combination to achieve excellent sound with little distortion. By inserting the timer relay into the grid of the output tube, you can use it safely for a long time.
The company's original pin jack is made of chrome copper for the input terminals, and pure copper is used for the speaker terminals. The speaker terminal is only an 8Ω output terminal, but there is nothing wrong with using 4Ω or 16Ω speakers. However, in either case, the maximum power is reduced. If the maximum output is 8W, the output will be about 4-6W.
| format | AD1/AD-1M Single Stereo Power Amplifiers |
|---|---|
| Vacuum tubes used | AD1/AD-1M x2, C3m x2, AZ-4 x1 |
| Maximum Output | 4W+4W |
| Frequency response | 20-20kHz |
| Input impedance | 200kOhms |
| size | 480(W)325(D)200(H)mm |
| weight | 14.8kg |
The reproduced sound is a neat and simple sound based on a moderate range spread centered on the midrange. The tone and sound quality are smooth and refreshing to the ear. The audition was mainly made by Emission Lab, but the vintage TELEFUNKEN output tube has a moderate consistency in terms of sound quality.
*analog
It is like a TELEFUNKEN sphere with a relaxed and gentle tendency, and an emission lab sphere with a sharp and exhilarating feel, but the choice depends on the difference in taste or the environment (equipment configuration). Although the reproducibility is small throughout, it is fun to listen to the small ensemble, focusing on the charm of the realistic reproduction of the flesh voice of the song. If you use it in general, you can enjoy it without worrying about small output.
*analog
