Sivga SV021 PRO Brown Hi-Fi Headphones

Closed-Back Hi-Fi Headphones with Real Wood Ear Cups

The SIVGA SV021 PRO pairs a 50 mm dynamic driver with handcrafted natural wood ear cups in a compact closed-back design for listeners who want detail without open-back leakage. Inside each cup sits a five-layer aluminum composite diaphragm paired with an ultra-fine black copper aluminum alloy voice coil, engineered for low distortion and clean mid-to-high retrieval. At 289 g, this model is light enough for long sessions. It suits anyone moving up from entry-level closed-backs who wants a wooden look.

What Sets the SV021 PRO Apart

Two design choices give this model its character. The ear cups are machined from solid beechwood or zebrawood on a 5-axis CNC, then sanded, polished, and finished by hand — no two pairs look identical. The driver pairs the five-layer aluminum diaphragm with a dome-shaped six-layer reinforced composite structure and a high-performance magnetic circuit, improving detail resolution over the original Robin.

Technical Specifications

A 45 Ω impedance and 106 dB sensitivity make this model easy to drive from a phone, dongle DAC, or dedicated amplifier. The 20 Hz – 20 kHz response covers the full audible range, while the closed-back design provides passive isolation. The included 1.6 m detachable OFC cable terminates in a 3.5 mm single-ended plug.

• Style: Closed-back over-ear
• Driver: 50 mm dynamic with five-layer aluminum composite diaphragm
• Frequency Response: 20 Hz – 20 kHz
• Impedance: 45 Ω ± 15%
• Weight: 289 g

Who Should Consider This Model

The SV021 PRO is the right choice for listeners who want a closed-back design with a more refined, vocal-forward presentation than typical bass-heavy consumer models. It suits acoustic, jazz, classical, and vocal-heavy genres where string detail and vocal articulation matter most. The 45 Ω drive makes it a practical partner for portable DAC dongles and DAPs, while the 289 g build and velour pads keep fatigue at bay.

From the SV021 Robin to the PRO Line

SIVGA built the original SV021 Robin as an affordable closed-back with a polycarbonate diaphragm and a warmer sound. The PRO version replaced that diaphragm with a stiffer, multi-layered aluminum design, raising impedance from 32 Ω to 45 Ω and shifting tuning toward detail. The PRO V2 retains that aluminum platform while refining the midrange.