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LD-sDO Single power amplifier

Product code: LD-sDO-1

ASTOR LD-sDO Single power amplifier

Regular price ¥269,100 円
Regular price Sale price ¥269,100 円
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Attached output tube
Supply voltage
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This is a made-to-order product. It takes about one month for delivery depending on the availability of parts. You can choose from three types of output cables.

High-quality music reproduction at a low price range

Astro Electronic's expert craftsmanship at a low price!

Astro Denshi Kikaku, a well-known brand of high-end vacuum tube amplifier manufacturing, has relocated its headquarters to a new location and has introduced the second low-priced series. Astro Denshi Kikaku is a manufacturer that does not compromise on the beautiful appearance, rich information, and pure sound of its products, which are carefully crafted one by one by skilled craftsmen using carefully selected materials. The internal parts of the amplifiers are carefully selected and manufactured by the same skilled craftsmen as those used in high-end models.
The LD series is designed to improve sound quality by preventing resonance through the production and processing of the company's exclusive 2mm-thick 52S aluminum alloy internal component mounting fittings, which are double-layered. 52S knobs for VR and a 10mm-thick 52S aluminum alloy front panel are also processed and anodized for a beautiful appearance and a solid weight. The amplifier has been produced with a sense of stability and high sound quality.

The LD-sDO series is a single-type tube power amplifier with separate left and right volume controls. It is especially recommended for orchestras, jazz, and other orchestrated music with excellent mid and high frequencies and a wide range of sound. The left and right independent volume controls allow you to enjoy high-quality vacuum tube music easily by connecting directly to CD players, smartphones, tablets, etc. without a preamplifier.

The insulator is made of a combination of aluminum and rubber materials. The circuit parts and chassis mounting parts are also made of carefully selected materials in pursuit of high sound quality, and the internal structure is two-stage for better sound quality.

The LD type is made by S.E.L Kanno Denki.
Tubes used (6550/KT88/EL34)x2, 12AX7x2
Transformer used SD-3812 x1, FPO-15S-5x2
Output UL fixed bias 40W x 40W
Frequency Response 10Hz~60kHz
Residual Noise Less than 1mmV/1W
Input impedance 100kΩ
Size W370 x H175 x D255mm (excluding mesh cover)
Weight 11kg