Oyaide STB-HWX The heaviest weight vinyl stabilizer for timbre tuning on Hi-End audio turntables

Basic

“STB-HWX” is the original vinyl stabilizer produced with innovation concepts.
It is composed by detachable 10 parts and its weight is changeable by the number of the weights for your best timbre tuning. Furthermore, it can be used for EPs by flipping it upside down.

“STB-HWX” is heavy-weight model which is the heaviest vinyl stabilizer on the market when it is full-weighted condition. It enhances the tracing ability of the groove to the maximum.

Features

Additional Tone Control by Adjusting Weights Combination

STB-HWX is composed by 10 parts and can be assembled/disassembled by users. (top disk x 1, bottom disk x 1, weight x 6, central axis x 1, weight spacer x 1)

The total weight of the stabilizer is customizable for your favorite timbre tuning. In addition, with Oyaide turntable rubber mat “MJ-12”, it generates a synergistic effect for getting better sound.

The Hybrid Materials of Aluminum, Brass, Carbon and Rubber

The combination of the hybrid material of aluminum, brass carbon and rubber, optimizes the vibration mode. It attenuates vibrations by platter rotation and enhances the trace of the vinyl grooves. Furthermore, the rubber spacer damps mutual interference of vibration. The STB-HWX extracts information on the vinyl maximally.

The Heaviest Vinyl Stabilizer on the Market

“STB-HWX” is heavy-weight model which is the heaviest vinyl stabilizer (790g) on the market when it is full-weighted condition. It enhances the tracing ability of the vinyl groove to the maximum for Hi-end audio turntables.

7″ Vinyl Stabilizer by Flipping Upside Down

STB-HWX can be used as an EP adapter and stabilizer by flipping upside down. Due to the convex with tapered edge, it fits smoothly to the donuts hole of 7″ vinyl records.

STB-HWX Pre-cautions

When you set “STB-HWX” on general LP vinyl and “MJ-12” turntable rubber mat altogether, the height from the surface of the top plate disc is about 60mm height. You may not close the turntable cover. So please check carefully with your turntable specification before you purchase.

And the total weight of the combination of “STB-HWX” and “MJ-12” is about 1.4kg, it would not guarantee for operation with all record players. So we strongly recommend to use “STB-HWX” with Hi-End audio turntable with very heavy platter.

💎 Standout Features

✅ Ultra-Heavy Mass

• At 570g, it offers maximum record-to-platter contact, flattening warped records and increasing groove stability.

• Ideal for heavy platters and robust spindle bearings (not recommended for light or budget decks).

✅ Resonance Tuning Materials

• Uses a hybrid metal layering system:

  • Brass for warmth and mass

  • Stainless steel for rigidity and damping

  • Aluminum for structural balance

• This mix allows fine control over tonal characteristics, especially midrange smoothness and bass articulation.

✅ Sonic Benefits

• Deeper, tighter bass with better transient control

• Expanded dynamic range

• Increased stereo image stability

• Reduces mechanical noise and stylus micro-vibrations

✅ Design & Finish

• CNC-machined with a brushed, high-end industrial aesthetic

• Non-resonant base with spindle pocket for centered placement

• Feels and looks like a true reference-grade component

🎧 Best For:

• High-mass turntables (Technics SP-10R, VPI Classic Signature, Brinkmann, SME, etc.)

• MC cartridges that benefit from increased groove stability

• Audiophiles chasing ultimate resolution, tone density, and soundstage layering

⚠️ Note:

• Avoid using on lightweight decks or suspended sub-chassis turntables (e.g., Rega, Pro-Ject Debut) unless specifically supported — the weight may damage the spindle bearing or affect suspension tuning.

🛠️ Pro Setup Tip:

Pair the STB-HWX with:

• A carbon or composite turntable mat

• A low-noise bearing platter system

• A rigid tonearm that can track heavy pressings cleanly

Together, they create a stable energy-dissipating platform that lets your cartridge focus purely on groove tracing — not fighting micro-vibrations.