To my valued US customers,

I will be traveling to San Francisco from September 12–19, 2026! If you are interested in any items from my listings, please let me know. I would be more than happy to bring them along so we can meet up in person and complete the deal.
Thank you for your support!

The CRUNCHY CHIME is our new booster unit with an equalizer function. A point worthy of special mention regarding this product is its harmonic components. The boost circuit that generates such rich higher harmonics is the result of our research on the harmonic components of vintage guitars and amplifiers. One of the attractive features of vintage musical equipment is its abundant and brilliant harmonics. We completed this boost circuit after various experiments and tests to learn the secrets of pleasant overtones that are never strident. With this product, you will feel greater vibrations from your strings and your guitar/bass will sound much livelier.

Every amplifier has different characteristics and there can be a problem such as a booster making the lower register sound dull. Actually, in the development stages, we had difficulties with these ample harmonics sounding muddy on some of the amplifiers we tested with, as unnecessary harmonic components conflicted each other to yield a harsh sound, etc. So we thought it is necessary to be able to adjust the frequency characteristics to match the gear being used and to get closer to an ideal sound. Our specially developed new equalization circuit creates a natural sound as if you were not using an equalizer for making tone adjustments for boost/cut. The characteristics become flat when both the TREBLE and BASS knobs are set to the 12 o’clock position.

A MODE switch to select frequencies is provided for the equalizer’s BASS control. This works well for the lower register of a 7-string guitar or bass guitar.

Born from a new way of thinking, the “CRUNCHY CHIME,” a booster with equalizer, greatly widens the range of sounds from your guitar or bass and increases the pleasure of playing and sound making.

Specifications (LIMITED TO 150 pcs):

Input impedance: min. 500kΩ

Output load impedance: min. 10kΩControlsBOOST（-16dB～+17dB), TREBLE, BASS, MODE Switch

Terminals: 2 x 1/4" standard phone jacks (input, output), DC9V input jack (for AC adapter connection)

Power supply: 9-volt PP3 battery, 9V DC center negative polarity

Current consumption: 7mA

Dimensions(W x D x H): 72 x 115 x 50 mm (incl. protuberances such as footswitches, jacks, etc.)

Weight: approx. 230 g (excl. accessories)

Accessories: Manual, Warranty card, Safety precaution, 4 x Rubber feet.

All items are shipped, tracked, and insured. All import duties, procedures, or custom fees are the buyers responsibility - please be aware of the requirements of your country.