DRIVER TECHNOLOGY

The Castor Bass edition uses the same dual 10 mm stacked dynamic drivers as the Harman model—one woofer dedicated to sub-bass and one driver for mids/highs. Powerful N52 magnets and a dual-cavity structure give strong output and fast transients. What sets this version apart is its tuning system: specialized filters and damping increase low-frequency sensitivity by over 10 dB, unlocking deep, subwoofer-like bass while keeping mids and highs clean. The 3D-printed internal frame stabilizes both drivers, helping maintain clarity even at high volume. DIP switches allow up to 16 profiles, letting you fine-tune bass and treble to taste.

TUNING PHILOSOPHY

This edition is built for bass enthusiasts. The default signature is a bold U-shape with massive sub-bass and mid-bass boost, while mids and highs stay aligned with the Harman curve above 1 kHz. The bass driver delivers powerful rumble without overwhelming vocals thanks to the dual-driver separation. Treble remains smooth and clear, avoiding sharpness. Overall, the Castor Bass version provides a thrilling “club-style” low end while maintaining musical clarity, making it ideal for EDM, hip-hop, and bass-heavy modern genres.

CABLE, CONNECTIVITY & INSIDE THE BOX

• Same OFC flat cable as the Harman version (0.75 mm 2-pin, 1.2 m, 3.5 mm plug).

• Mic and non-mic variants available.

• Includes tuning filters, DIP switch tool, silicone tips, and memory foam tips for maximum bass seal.

• Resin shell with metal faceplate; identical build to the Harman edition.

• Designed for heavy listening with durable connectors.

OUR VERDICT

Who it’s for: Perfect for bass lovers who want powerful sub-bass without sacrificing mid and treble clarity. Also suitable for DJs, drummers, and musicians who rely on strong low-frequency monitoring.

Strengths: Exceptional bass depth and slam; clean mids despite heavy low end; smooth treble; solid imaging thanks to dual drivers; tuning flexibility via switches and filters.

Limitations: Not neutral—bass can overpower certain genres if left at max; slight pressure feeling due to strong sub-bass; requires careful filter handling; consumes more volume/power than the Harman version.

Value: Fantastic for bassheads. You get serious subwoofer-like performance at a budget price while still keeping clarity—rare for this price category.

AFTER-SALES & WARRANTY (SHARMAZ NEPAL)

Sharmaz Nepal offers a 6-month warranty covering driver faults, tuning switch issues, and crossover problems. Filters and small accessories are covered under a 15-day replacement period. Our technicians can test both drivers individually to verify performance and help with tuning setup. Physical or moisture damage isn’t covered, but we provide affordable repairs, spare tips, filters, and cables to keep your Castor Bass performing reliably.

MOONDROP-CHU III

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