ASTOR
TO-2A3sKG Tube Power amplifier

Astro Denshi Kikaku's products have a beautiful appearance made of vacuum tubes and metal processing, and a rich amount of information and high purity of sound quality to faithfully reproduce the original sound source. Carefully selected materials are carefully crafted one by one by skilled artisans. The internal parts of the amplifier are carefully selected and manufactured by the same skilled craftsmen as for the high-end models, resulting in an amplifier that produces high-quality music reproduction similar to that of high-end models.

The TO-KG series is even more compact than the mid-sized TO-FC series, with a width of 20 mm. The TO-KG series is made of 52S aluminum alloy 2 mm thick, with two types of anodized chassis (champagne gold and silver), and by producing and processing internal parts mounting fittings exclusive to Astro Electronics Planning and making them double, resonance is The sound quality has been improved while suppressing resonance. The appearance of the anodized aluminum front panel, which is made of 10mm-thick 52S aluminum alloy, and the knobs for the VR are also anodized to create a fascinating amplifier that accentuates the shiny vacuum tubes.

The output tubes are self-biased, so they can be easily replaced with compatible bulbs for your enjoyment. The self-bias capacitor used by Astro Denshi Kikaku is an order of magnitude larger than the 200~300 micro capacitors used by most manufacturers, at 8000 micro. This allows the sound to be expressed well even when the volume is turned down. The left and right independent volume controls allow you to connect directly to CD players, smartphones, tablets, etc. without a preamplifier and enjoy high quality tube music at your leisure.

The transformers are made by a well-known transformer manufacturer, Astro Denshi Kikaku, and are original transformers with a sound quality close to that of high-end models, while keeping the price as low as possible. The legs are 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 two-stage internal structure prevents resonance from both inside and outside, contributing to noise-free, highly transparent sound quality.

Tubes used	2A3 x2, 12AX7 x2, 12AU7 x2
Transformer used	KMB280M x1, KA-6625ST x2
Output	15W x 15W, UL connected, self-biased
Frequency Response	10Hz~60kHz
Residual Noise	Less than 1mmV/1W
Input impedance	100kΩ
Size	W370 x H150 x D300mm
Weight	Approx. 12kg