The low price series appeared from the Astro electronic plan of the luxury tube amplifier manufacturing brand who knows. As for the Astro electronic plan, the craftsmen are carefully crafted material, and the craftsmen are made by the skill of the craftsmen, and the product which makes one by one carefully is a maker with a beautiful appearance and a high amount of information and purity, and is not compromise. It is a robust chassis for artistic wiring and vibration suppression. The internal parts of the amplifier use the carefully selected parts as well as the high-class model, and the same craftsmen are produced, and it is finished in the amplifier which plays the music reproduction of the high sound quality close to the high quality model with low price band.

As-300bsb is a single miner amplifier series. Chassis is a low price item of 18-18 stainless steel 1.6mm thick and limited in number. Transformers adopt the high grade Hashimoto transformer which the astroelectronics project uses in the senior model of the company.
You can enjoy the music of high quality sound of 300B vacuum by connecting directly with CD player, smart phone, tablet etc.without preamplifier, because it has the volume control of left and right independently.

Vacuum tube	300B x 2, 12 ax 7X2
Use transformer	Hashimoto transformer: pt-100x1, h-1972 x 2, h-1978 x 1
Input impedance	100 K
Frequency characteristics	10 Hz ~ 50 kHz
Residual noise	1 MMV or less
Input	Route 1
Output	Self bias / 5W x5w
Size	W330 x H200 x D250 mm
Power supply	100 V / 50, 60 Hz
Weight	About 8 kg