HumminGuru S-DUO Pro

2-in-1 Ultrasonic Record Stylus Cleaner and Digital Pressure Gauge

Rechargeable | Portable | Effortless 

A compact and portable ultrasonic cleaning device designed to care for your record stylus. Equipped with a built-in aluminum digital pressure gauge, this device lets you easily measure the downforce by simply flipping it after the ultrasonic bath. Its 2-in-1 design streamlines your cleaning process, providing a seamless and effortless experience. Featuring a carefully selected 110kHz ultrasonic cleaning frequency, the S-DUO Pro ensures safe and effective cleaning in just 20 seconds. Its high compatibility with different cartridges is made possible through the use of provided stylus rubber supports. The rechargeable feature allows you to power the device without needing disposable batteries, making it both sustainable and cost-effective. Additionally, the built-in storage on the charging base enables convenient storage and retrieval of small parts whenever needed. The S-DUO Pro offers all the features you need for a pleasurable experience.

Engineered with audiophile-grade components — premium drivers, hand-matched crossovers, and a hardwood enclosure tuned for natural decay. Every cabinet is internally braced and damped to suppress resonance below the threshold of audibility.

• Custom 6.5" mid-bass driver with paper-pulp cone for transient accuracy.
• Soft-dome silk tweeter with neodymium motor for airy, fatigue-free highs.
• Point-to-point hand-wired crossover using silver-foil capacitors.
• Bi-wirable terminals plated in pure copper.

Place each speaker on its dedicated stand, toed-in toward the listening position. The hardwood enclosure resonates in concert with the drivers — a deliberate, musical interaction rather than a flaw to be eliminated.

Connect to a quality amplifier using bi-wired speaker cable for the most transparent presentation. Allow 50–100 hours of break-in for the drivers and crossover capacitors to settle into their final voicing.