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ASTOR AST-6SN7 Vacuum Tube Stereo PP Power Amplifier

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ASTOR AST-6SN7 Vacuum Tube Stereo PP Power Amplifier

Regular price $1,866.00 USD
Regular price Sale price $1,866.00 USD
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If not in stock, will be made to order, delivery time will be about 3~4 weeks.

Authentic sound without compromise

Faithful reproduction of the original sound source

Description

ASTOR, a manufacturer of vacuum tube amplifiers, is developing a new series of amplifiers that are lighter and easier to handle without sacrificing sound quality by reducing the width and size of the amplifiers from its previous lineup of full-size, bulky, and heavy amplifiers.

The AST-6SN7 push-pull style power amplifier is available in two chassis options: stainless steel or aluminum. The original internal component mounting fittings are produced and machined into a two-stage structure to suppress resonance and improve sound quality. The anodized aluminum front panel, made of 10mm-thick 52S aluminum alloy, and the knobs for the VR also create a fascinating appearance that accentuates the shiny vacuum tubes.

The output tubes are equipped with a self-bias function, so they can be easily replaced with compatible bulbs for your enjoyment. The self-bias capacitor used in the AST-6SN7 has a large capacitance of 470 microns, whereas most amps in the same price range use a capacitor of around 100 microns.This allows a margin of current capacitance, which results in performance comparable to a fixed bias.This allows the sound to be well represented even when the volume is turned down. Since it has independent left and right volume controls, you can easily enjoy high-quality tube music by connecting it directly to a CD player, smartphone, tablet, etc. without a preamplifier.

The transformer uses an original transformer that keeps the price low while delivering sound quality as good as that of higher grade transformers. The legs are made of a combination of aluminum and rubber materials. Circuit parts and chassis mounting parts are also made of carefully selected materials to pursue high sound quality,

The two-stage internal structure prevents resonance from both inside and outside, contributing to a high sound quality with transparency and no distortion.

Specs
Tubes used 6SN7×2, 12AU7×2, 12AX7×1
Transformer used AST-70PK, TOR-5PP, ST-1.5--200M
Output 1.8W x 1.8W, self-biased
Frequency Response 10Hz~50KHz
Residual Noise Less than 1mmV/1W
Distortion 0.27%/1W
Input impedance
A100K
Size W270 x H150 x D300mm(Protrusions not included)
Weight 6.9kg(Stainless steel type)4.3kg(Aluminum type)