FAST C-10 Hybrid Vacuum Tube Preamplifier

Izumidenki FAST C-10 Hybrid Vacuum Tube Preamplifier
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This is a preamplifier with a punchy, strong sound that is highly regarded among some audiophiles.
I compared it with a new D-class preamplifier featuring an electronic volume control, known for its longevity. The FAST C-10 offered a richer sound with a wider soundstage and a generally more substantial impression. It truly showcased the benefits of a hybrid design, blending vacuum tubes with modern technology.
While I initially expected it to be best suited for jazz, I found it to be exceptional with classical music.
I was personally skeptical about Japanese preamplifiers, but this one demonstrated excellent musicality.

It comes with two seemingly high-quality vacuum tubes (12AX7), please refer to the images.

While I cannot be certain, I believe they are British Mullard CV4004. Please correct me if I am mistaken.

The item will be carefully packaged in a double-layered cardboard box with cushioning material in between to minimize any potential issues during shipping.

Currently, the Arion brand, which is based on this model, is highly regarded overseas and commands a considerable price. You can enjoy this simpler, early model at an affordable price.
https://m.youtube.com/@stereohi-fi4229
Example YouTube video from 4 years ago.

I have measured the thickness of the aluminum chassis and included images. Not only the front but also the sides, back, and bottom casing are made of thick, robust aluminum, indicating a high level of craftsmanship. The top panel appears to have been replaced by the previous owner, resulting in a very open sound.

I confirmed the sound output using a CD player, and there was no crackling or popping from the volume control at listening levels. I have not tested it with records. As this is an older unit, please be prepared to address any potential issues such as noise, hum, or other problems yourself. If you are concerned about minor details, please refrain from purchasing. No claims or returns will be accepted.