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ASTRO AST-6L6GCsSTK Vacuum Tube Stereo Single Power Amplifier

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ASTRO AST-6L6GCsSTK Vacuum Tube Stereo Single Power Amplifier

Regular price ¥205,700 円
Regular price ¥242,000 円 Sale price ¥205,700 円
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Attached output tube
Power supply voltage
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Limited quantity. We are offering it at a special price! Don't miss this opportunity!

It will be on backorder. Delivery time will be 7~10 days. You can also choose an output tube. Overseas specifications take about 3~4 weeks to ship due to transformer manufacturing.

It can be enjoyed by everyone from tube audio beginners to veterans.

Faithfully reproduce the original sound source

Description

Tube amplifier manufacturer Astro Electronics has created a new series for beginners in tube audio. By narrowing the width and reducing the size of the amplifier, it is finished in a light and easy-to-handle amplifier. AST's STK series uses the company's first original internal board to simplify manufacturing and reduce production costs and production time.

Astro Electronics' original board is designed with thicker wiring than ordinary boards, contributing to the amount of information and sound quality. In addition, the transformer is the company's original design transformer, which is not inferior to the high-quality Hashimoto transformer, and has succeeded in keeping the price down without sacrificing sound quality. By carefully crafting each tube amplifier one by one, it is finished in expressive and powerful sound quality that will satisfy not only beginners but also enthusiasts.



There are two inputs, and you can enjoy full-fledged tube sound by directly connecting a music player such as a CD without going through a preamplifier. In addition, by installing an LED in the tube insertion part, you can enjoy a new visual effect of a tube amplifier that has never been seen before.



Tube amplifiers must be adjusted to stabilize the operating point (bias point) in order to optimally operate the tubes inside the amplifier at a specific voltage or current.AST-6L6GCsSTKIt has a self-bias function that automatically adjusts the troublesome bias, so you can replace compatible vacuum tubes and enjoy the difference in sound quality that each vacuum tube has.

The self-biased capacitor used is 100 ~ 200 micro for the capacitor used by general amplifiers in the same price range.AST-6L6GCsSTKIt uses a capacitor with a high capacity of 470 micro. As a result, while a general amplifier cannot express the sound properly when the volume is low, the sound is expressed firmly even when the volume is turned down. Since the left and right sides are independent volume control, you can finely adjust the volume, and you can easily enjoy high-quality music played by vacuum tubes.

The input terminals are high-grade gold-plated terminals, and the speaker terminals are machined aluminum plated terminals that are compatible with various speaker terminals, and it is a full-fledged model that supports speakers from 4 Ω to 8 Ω.

Spec
Vacuum tubes used 6L6GC(6V6GT)×2  12AX7×2
Transformer used
AST-70PK, TOR-2WS 
output 2W x 2W, self-biasing
Frequency response
40Hz~50KHz
Residual noise 1 mm V or less/1 W
Input impedance
A100KSpecial custom-made base plate circuit use
power 100V / 50,60Hz
size W270 x H150x D300mm
weight Approx. 5kg