Sivga Robin SV021

50mm PC-Fibre Dynamic Driver, Real Wood Earcups, Memory Foam Pads — Sivga’s Revised SV021 at $149

The naming here is worth addressing upfront. This is the new Sivga Robin SV021 — not the SV021 Pro I reviewed in March, and not the original 2021 model that preceded both. Sivga has quietly revised the base Robin, keeping the same wood earcup aesthetic and 50mm dynamic driver format but updating the diaphragm material and manufacturing process. The result is a headphone that measures better than either of its predecessors — a point I confirmed directly with Sivga after I measured it, and they acknowledged the improvements.

At $149.99 with genuine wood earcups, memory foam pads, and a detachable cable, the question is what the tuning asks of you. The answer is: some EQ, but not much, and the headphone responds well.

About three weeks of use here, with something notable happening partway through: my wife — who does not typically engage with the headphone rotation — picked these up, put them on, and wore them for most of an evening without complaint. She mentioned the comfort and the weight. At 275g with those memory foam pads, the SV021 sits very gently on smaller heads in a way that not every closed-back manages, and that earpad material genuinely lives up to Sivga’s description of it. But first, let’s take a look at what’s in the box.

Unboxing and Packaging

The SV021 arrives in clean, practical outer packaging with the Robin branding clearly presented:

A separate driver information insert positions the SV021 as a considered product and gives a preview of the driver technology — a nice touch that not every headphone at this price includes:

Inside, the contents are presented well. The box includes the headphone, a detachable cable, a 6.35mm adapter, and an accessory pouch. There is no hard carry case, which is a genuine omission for a headphone this well-built:

The soft accessory pouch holds the earpads and cable but will not protect the headphone for travel. The SV021 looks good enough that a case would have been a meaningful inclusion:

Design and Build Quality

The real wood earcups are the headline feature, and they deliver. Each cup has a warm, natural finish that gives the SV021 a visual quality that stands out at this price — this does not look like a $149 headphone:

The Sivga branding sits cleanly on the wood surface without crowding it:

The earpads are a genuine strength. The memory foam layer covered in what Sivga calls delicate earpad leather provides real comfort — soft, yielding contact that makes the headphone feel lighter than its 275g on the head:

The wood cups with earpads installed, and the earcup interior — both are well-finished and make a strong overall impression:

The side panel and grip area show how cleanly the wood integrates with the structural elements — seams are tight and the assembly feels solid:

Driver Technology

The SV021’s 50mm dynamic driver uses an in-house Sivga diaphragm made from polycarbonate and fibre — a combination Sivga says gives good elasticity and dynamic performance with a natural character. The coil uses copper-clad aluminium wire to maintain sensitivity without adding mass. Sivga’s own diagram of the driver architecture gives a useful view of the construction:

When I measured the SV021 and reached out to Sivga about the response, they confirmed the manufacturing process had been updated compared to the original 2021 model. The measurements back this up — distortion is cleaner and the overall response is more refined than the original or the Pro.

Cables and Accessories

The included cable has some things worth calling out — in both directions. The dual 3.5mm connectors at the headphone end are colour-coded left and right, which is a genuinely useful detail that takes no effort to appreciate once you are used to it:

The 3.5mm termination at the source end and the cable splitter are both neatly finished:

The weakness is microphonics — cable handling noise is audible during movement. For desk listening this is a non-issue, but for commuting or any active use you will notice it. I spent most of my listening time with a different cable:

Fit and Comfort

The headband is the SV021’s weakest element. Compared to Sivga’s more expensive models — the Peng in particular uses a more refined suspension system — the Robin’s headband is simpler and distributes weight less evenly on larger heads over extended sessions. That said, the SV021 Pro uses a similar basic headband, so this is a consistent design choice at the base tier rather than a step backward.

Where the SV021 genuinely excels is earpad comfort and overall weight. The memory foam pads provide real depth and a gentle seal, and at 275g this headphone disappears on smaller heads. As mentioned, my wife wore these for a full evening without noting any discomfort — which is a more practical endorsement than most listening tests.

Sound Impressions

All impressions were formed using the JDS Labs Element IV and Topping DX5 II. I listened both stock and with EQ applied, and both are worth commenting on.

Bass

The bass is one of the SV021’s clear strengths. There is real weight here — sub-bass extension that gives electronic music and well-produced recordings a satisfying sense of body without turning soft or losing definition. On “Angel” by Massive Attack, the deep synth layers carry genuine texture and hold their composure without collapsing into undifferentiated rumble. The mid-bass is warm and present without blooming badly into the lower midrange — a point of real improvement over the original 2021 SV021. This is a confident, enjoyable low end that does not require EQ intervention.

Midrange

The midrange is where the SV021 asks the most of the listener. There is a scoop in the lower midrange — in the region where guitar body, piano, and male vocal weight sits — that creates some distance and thinness in instrument presentation. On “Fast Car” by Tracy Chapman, the guitar body and lower register of the vocal lose some of their natural warmth and feel slightly pulled back. This is the primary EQ target: a broad lift in the 500Hz–1kHz region does a lot to restore coherence and bring instruments forward. With that correction in place, the midrange becomes genuinely good — present, clear, and natural in a way that makes the headphone considerably more enjoyable across most music.

Treble

The treble has a slight roll-off in the lower treble followed by a lift further up — smooth initially but with some edge on brighter recordings. On “Tamacun” by Rodrigo y Gabriela, the upper guitar harmonics come through with presence and energy, though the SV021 occasionally over-emphasises the bite of certain string attacks relative to a more neutral headphone. It is not fatiguing on most material, and the lower-treble softness keeps sibilance well controlled — but the upper-treble elevation is visible in the measurements and audible on revealing recordings. A small high-shelf cut above 8kHz is the second EQ adjustment worth making.

Soundstage and Imaging

For a closed-back at this price the soundstage is reasonable — intimate, as closed-backs tend to be, with a centre-weighted presentation and adequate front-to-back layering. On “Private Investigations” by Dire Straits, the guitar and vocal occupy distinct positions and the spatial organisation is clean, if not wide. With EQ addressing the midrange scoop, the imaging improves noticeably — instruments feel more present and immediate, and the overall sense of space opens up. This is not a wide-stage headphone, but it is a coherent one.

Comparisons

Most of the comparison shots here feature significantly more expensive headphones, so these are offered as context rather than competitive assessments — the SV021 is the most affordable of any of them.

The most directly relevant internal comparison is against the SV021 Pro and the original 2021 SV021. The new SV021 measures better than both — the frequency response is more refined and the driver improvements are real. The Pro has a headband that sits more comfortably on larger heads, which remains its practical advantage. Two views comparing the new and original Robin earcup design:

Against the Meze Audio 99 Classics V2 — a well-regarded warm closed-back at a higher price — the SV021 competes more closely in bass weight and character than the price gap might suggest. The Meze has better headband comfort and a more even midrange out of the box, but EQ closes the gap considerably. Shown here alongside the Sivga Peng:

The FiiO FT13 is a natural comparison — another dynamic driver closed-back with strong build quality and a competitive price. The FT13 has a more neutral stock tuning and a better headband; the SV021 has the wood aesthetic and the memory foam earpad comfort:

Against the Crosszone CZ12 and FiiO FT1 — two headphones with very different design priorities — the SV021 is the most conventionally tuned of the three, and with EQ applied achieves better overall tonal accuracy than the CZ12:

Against the Hifiman Audivana LE and Sundara Closed — both more expensive closed-backs — the SV021 with EQ achieves better tonality than either. That is worth stating plainly for a $149 headphone:

A broader group shot showing the SV021 alongside ZMF, FT13, and several other closed-backs gives a sense of the wider landscape it sits in:

Specifications

Measurements

The raw KB501X frequency response shows the SV021’s character clearly — solid bass, a lower-midrange scoop, and the upper-treble lift I mentioned in the listening section:

Against the Harman OE 2018 target, the same picture with more context: bass sits pleasantly above target, the midrange dips in the lower region, and the upper treble has more energy than the curve recommends:

The comparison with the original SV021 is where the driver improvement is most visible. The new model shows a measurably smoother and better-controlled response across the midrange and treble:

Alongside the Sivga Peng, the SV021 traces a similar overall character — the family resemblance is clear in the tuning approach:

The comparison with the Meze Audio 99 Classics V2 shows how the SV021’s bass elevation compares to one of the benchmark warm closed-backs at a higher price — closer than the price gap might suggest:

Against the Crosszone CZ12 and Hifiman Audivana LE, the SV021’s more conventional tuning and its tonal advantage over both — particularly EQ-corrected — are visible in the data:

Distortion is clean for a dynamic driver at this price — the manufacturing improvements Sivga mentioned translate into better control with no significant resonances in the critical listening bands:

For EQ, the two main adjustments: a broad lift of around 3dB centred in the 500Hz–1kHz region to address the lower-midrange scoop, and a high-shelf cut of around 2dB above 8kHz to tame the upper-treble elevation. Neither change is dramatic, and the headphone responds cleanly to both.

Rating Explanation

The Pragmatic Rating of 4 reflects a genuinely good headphone that earns its position with a small amount of EQ work. Stock, it is enjoyable but not fully competitive with the best-tuned closed-backs in this price range. With EQ it is very good — the bass is excellent, the midrange becomes natural and present, and the build quality is legitimately impressive at $149. The driver improvements Sivga confirmed are real and measurable, and this is a better headphone than either of its predecessors.

The headband is the thing keeping this off a Pragmatic 5. On larger heads it distributes weight less comfortably than I would like over extended sessions, and that matters for a headphone otherwise designed for comfortable long-term wear. For listeners with smaller heads — as my wife’s experience made clear — this limitation largely disappears.

The Price Rating of 5 is straightforward: real wood earcups, memory foam pads, a detachable cable with colour-coded connectors, and a 50mm driver that outperforms the original — all for $149.99. There are very few headphones at this price that look or feel this considered. The Features Rating of 4 reflects the build quality and cable alongside the meaningful omission of a carry case. The Measurements Rating of 4 acknowledges clean distortion and real driver improvement while recognising that the stock tuning requires some EQ work to realise the headphone’s potential — the FR does not land where it should without help.

Conclusion

The Sivga Robin SV021 earns its price without really trying, and earns considerably more if you give it a small push with EQ. The wood earcups and memory foam pads make a product that looks and feels more expensive than $149, the bass has real character and weight, and the driver improvements since the 2021 original are both measurable and audible. The headband is a limitation for larger heads, the cable is microphonic on the move, and there is no carry case — but none of this is surprising at the price.

If you are comfortable with basic EQ, the SV021 sits in interesting territory: better stock tonality than the Crosszone CZ12, better measurements than the Hifiman Audivana LE, and a visual and tactile quality that is hard to find at twice the asking price. It is a headphone that deserves more attention than its modest price suggests.