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AS-6SN7HD Tube Headphone amplifier

Product code: AS-6SN7HD-1

ASTOR AS-6SN7HD Tube Headphone amplifier

Regular price ¥619,360 円
Regular price Sale price ¥619,360 円
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If the product is not in stock, it will be made to order. It may take 2 or 3 months depending on the order status.

Luxury headphone amplifier of the highest quality

Luxury headphone amplifier using the highest quality Hashimoto transformer

Luxurious headphone amplifier using the highest quality Hashimoto transformer and solid stainless steel chassis!
Astro Denshi Kikaku is an outstanding vacuum tube amplifier manufacturing company that uses carefully selected materials and craftsmanship to create each product one by one. The beautiful metallic appearance with vacuum tubes, abundant information and highly transparent and pure sound are worth a listen.

The development of the AS-6SN7HD was conducted with headphones from AKG, Audio-Technica, and other major headphone manufacturers. It is one of the strengths of Astro Denshi Kikaku that we can adjust the resistance value in accordance with the impedance of the headphones used by the owner and deliver the product in the best condition for the order. The AS-6SN7HD is also equipped with a speaker jack, so you can easily switch between speakers according to your mood or situation, and you can select the impedance of the speaker.

The beautifully shining chrome body with a body size of W320 x D320 mm and the filament light of the vacuum tubes blend beautifully into your interior, allowing you to enjoy transparent, high-purity vacuum tube music in a more familiar setting.

The stainless steel chassis, which has no protruding screws and has a mirror-like surface that reflects the transformer and vacuum tubes, is 2mm thick and folded to be strong and heavy, shutting out vibration and noise generated inside and outside. The two-stage structure of the vacuum tube inserts prevents vibration and improves heat dissipation, suppressing heat inside the chassis for stable use over a long period of time.
The inside of the chassis is made of a modest shining oxygen-free copper plate, and the wiring is artistically designed with a lot of single wires, and the legs are made of solid oxygen-free copper rods, with young cow leather between the legs and the bottom to prevent resonance. By installing a strong chassis with vibration control and a top-quality Hashimoto transformer, the noise-free, high-resolution reproduction sound makes music appreciation more enjoyable with a natural extension of the low frequency range and a glossy, high-quality sound in the mid and high frequency range with high transparency and extension. 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, but Astro Denshi Kikaku uses a 8000 micro capacitor. This allows the sound to be expressed well even when the volume is turned down.

Furthermore, the AS-6SN7HD is designed so that a dedicated phono equalizer amplifier can be powered and driven from the DCOUT on the rear panel in the future. With the power supply disconnected, the phono will not pick up any power supply noise and will provide a superior analog disc sound through the headphones.
Tubes used 6SN7GT x2, 12AX7A x2, 12AU7A x2
Transformer used PT-95 x1, HW-15-8 x2, H1989 x1
Output/ UL connection 1.8W x 1.8W self-bias
Input Impedance 100kΩ
Frequency response 10Hz~60kHz
Compatible headphone impedance 30~700ohm
Residual Noise 1mmV or less
Distortion at 1W 0.40%
Size W3200 x D320 x H170mm
Weight Approx. 12.5kg