Yuki Bass Sound System: 十六夜 -IZAYOI- Bass Preamp
The Yuki Bass Sound System series is dedicated to meeting the exacting needs of modern bassists. Our flagship release, the "IZAYOI" Bass Preamp, focuses on the essential tonal foundations demanded by touring professionals. Taking its design inspiration from the sixteenth night moon, the IZAYOI combines an elegant aesthetic with high-performance sound shaping.
Whether in the studio or on stage, the IZAYOI delivers professional-grade quality across genres—from the nuances of Jazz and Blues to the drive of Rock. It offers the flexibility required by both seasoned pros and dedicated hobbyists.
Key Features
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Intuitive Core Controls: Effortlessly dial in your base tone using the Gain, Volume, Treble, Bass, and Presence knobs.
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Dual Mid-Filter System: To allow for surgical precision, the IZAYOI features two distinct Mid-Filters:
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1st Filter: Located immediately after the input buffer; offers a choice between Bypass or Mid-Cut.
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2nd Filter: Positioned before the volume circuit; features three settings (Mid-Cut 1, Mid-Cut 2, and Off).
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Command the Mids: This preamp is voiced with a naturally powerful midrange. The dual filters allow you to sculpt this "muscle" to your preference. When the filters are OFF, the mid-cut is completely bypassed, maintaining the pedal’s raw, authoritative punch.
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Modern Board Integration: Designed with the modern pedalboard in mind, the IZAYOI plays perfectly with loop switchers and complex signal chains.
Pro Tip: Because the Mid-Filters offer deep tonal shifts, we recommend testing different combinations of the 1st and 2nd filters to find the perfect "sweet spot" for your specific bass and amp rig.
Specifications
| Feature | Details |
| Input Impedance | 1MΩ |
| Output Impedance | 10KΩ |
| I/O Terminals | 1/4” TS Phone (Input/Output) |
| Power Supply | DC9V (φ2.1mm Center Negative) |
| Current Draw | 250mA (Power supply sold separately) |
| Dimensions (D/W/H) | 119 x 108 x 76 mm |
| Weight | 382g (0.46kg including packaging) |
| Origin | Made in Japan |