Yamamoto Sound Craft single stereo amplifier
Product code: a06-3-1Yamamoto Sound Craft single stereo amplifier
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It becomes an order-made product. Delivery time is around 5 months.
European vacuum tube AD1 is now reproduced
European Harmony - Emission Lab AD1
It is a single stereo power amplifier using a AD1 that reproduces European-made vacuum tube AD1M in modern times. Using a single two-stage amplifier system that maximizes the appeal of the output pipe, the drive tube has a long life and high reliability vacuum tube C3m to achieve clear sound across the entire band. The current regulator circuit is used for the power supply, making the sound clean and energetic.
Single stereo power amplifier with AD1 reproducing European vacuum tube AD1M in the modern era
In order to utilize the character of the three-pole output tube, a simple circuit configuration has a single configuration with a maximum output of 4W × 2. Vacuum tubes can be selected from emission labs and products made by Telefunken.
The rectifier also adopts the same side contact type European vacuum tube AZ-4 as the AD1 tube, and the European sound is finished by unifying all vacuum tubes to European made. Self-biased circuitry was adopted so that valuable AD1/AD-1M vacuum tubes could be used in a stable manner, and the AD1 features were derived from the non-return reduction configuration.
A current meter is equipped to check the current of the output tube at any time.
Condensers have fast response and low distortion polypropylene film capacitors. All transformers use high performance high-beam-type original cut-core transformers with Teflon insulated paper for excellent sound with little distortion. By inserting a timer relay into the grid of the output tube, you can use it with confidence for a long time.
Our original pin jack for chrome copper is used for input terminals and pure copper is used for speaker terminals. The speaker terminal is only the 8Ω output terminal, 4Ω there is nothing wrong with using the 16Ω speaker. However, the maximum output will be lowered in either case. If it is the maximum output of the 8W, it will be the 4-6W output.
| Format | AD1/AD-1M single stereo power amplifier |
|---|---|
| Use vacuum tube | AD1/AD-1M x2, C3m x2, AZ-4 x1 |
| Maximum output | 4W+4W |
| Frequency Characteristics | 20-20kHz |
| Input Impedance | 200kOhms |
| Size | 480(W)325(D)200(H)mm |
| Weight | 14.8kg |
A clean and simple sound is built based on a good range spread mainly in the middle range. The sound quality is refreshing and refreshing. The test listening was mainly conducted by Emission Lab, but the sound quality of the output tube of vintage Telehunken produces a good stickiness.
*analog
Telehunken ball with a slow and calm tendency, it feels like an exhilarating emission lab ball with a good cut, but it will be selected according to the difference of preference or the environment (equipment configuration). Although it is a small reproducibility in the whole, it is fun to listen to small pieces centering on the charm of the realistic reproducibility of the singing voice. If it is general usage, you can enjoy without worrying about small output.
*analog
