Product Description

Superlux HD668B MKII Professional Studio Monitoring Headphones

Building on the legacy of the iconic HD668B, a favourite in audio communities for over 15 years and often hailed as the “low-key king of balanced fidelity,” the HD668BMKII takes everything great about the original and enhances it with modern innovation.

Retaining its signature look, the HD668BMKII features an upgraded diaphragm material that significantly enhances sound clarity and detail, delivering a more immersive and refined audio experience. Its tuning stays true to a neutral and balanced sound profile, with clear mids, smooth highs, and solid lows for a natural and well-rounded listening experience.

Designed with comfort in mind, the headphone structure has been newly optimised for a lightweight and secure fit, making it ideal for extended listening sessions. Whether you're working, recording, or simply enjoying your favourite music, the HD668BMKII ensures all-day comfort without fatigue.

Perfect for studio monitoring or everyday use, the HD668BMKII offers professional-grade sound paired with user-friendly design, where high performance meets simplicity.

Product Revision Note (Stock Purchased August 2026 Onwards)

Starting August 2026, the HD668BMKII features fine-tuned acoustic optimization with a targeted ~3 dB reduction around 300 Hz. This adjustment cleans up lower-midrange muddiness, resulting in clearer vocals, better instrument separation, and a tighter, more precise bass response.

The Tech Features

Brand: Superlux
Model: HD688B MKII
Type: Dynamic, semi-open
Jack: Gold-plated, 3.5mm with a 6.3mm (1/4") adapter
Drivers: Neodymium 50mm
Frequency Response: 10Hz - 30KHz
Impedance: 56 Ohms
Sensitivity: 98 dB
Dimensions: 21cm x 19.5cm x 11cm
Weight: 260 grams
Included Accessories: 1 x 1.5m cable, 6.5mm gold plated stereo input adapter, 1 x carrying bag

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