66%
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
Professional Reviews 66/100
Kinda Soggy
Sound Quality
58/100
Build Quality
50/100
Features Connectivity
75/100
Value for Money
89/100
The HS02 targets cleaner USB grounding rather than sonic coloration, offering a focused fix for systems troubled by hiss or ground-loop noise. IWII Reviews found its transparent pass-through and flexible USB-C/USB-B inputs with USB-C/USB-A outputs reassuringly simple. For sensitive tube rigs, its galvanic isolation and driver-free operation make it a smart, affordable noise-control tool.
What Reviewers Are Saying
Pros
Galvanic isolation may reduce audible ground-loop hiss and noise-floor issues, particularly with sensitive tube equipment.
Flexible connectivity includes USB-C and USB-B inputs, USB-C and USB-A outputs, plus input/output selectors.
Reliable, driver-free pass-through: tested computers recognized the downstream DAC and signal passed consistently.
Offers a lower-cost solution for a specific ground-loop problem than more comprehensive regenerators or DDCs.
&
Cons
No audible improvement was heard in several already-quiet systems, so its benefit is highly dependent on an existing noise or ground-loop issue.
It does not reclock, regenerate the USB signal, or reduce jitter.
SOUND QUALITY PERFORMANCE 58/100
In the systems tested, the reviewer heard no change to fidelity or overall sonic quality with the HS02 inserted. Its audible benefit appears conditional: it may lower audible ground-loop-related hiss, but it is not intended to regenerate or otherwise reshape the USB signal.
Tonal Balance and Musicality
50/100
The reviewer could not hear a positive or negative change in sonic character across several systems. There is no evidence that the HS02 alters tonal balance, musical engagement, or listening fatigue.
Resolution and Detail
50/100
No improvement or loss of detail was heard when the unit was added to the chain. The review does not describe any change in separation, micro-detail, or perceived resolution.
Digital Performance
76/100
The HS02 provides galvanic isolation and may reduce background hiss or white noise caused by ground-loop issues, particularly with tube equipment. The reviewer also makes clear that it does not reclock, regenerate, or remove jitter from the USB signal.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
50/100
The review confirms reliable basic operation: the computer consistently recognized the downstream DAC and signal passed through with several DACs. Reviewers say little about the chassis, internal construction, long-term durability, or power-supply implementation.
Features Connectivity
75/100
The HS02 offers USB-C and USB-B inputs, USB-A and USB-C outputs, and input/output selectors for flexible USB-system integration. It is a focused USB isolator rather than a full DAC, with no analog outputs, format controls, display, or reclocking functions described.
Value for Money
89/100
At roughly $84–$101, the reviewer considers it a less expensive way to address noise or ground-loop problems than buying a more complete signal regenerator or DDC. Its value is strongest for systems with an audible USB-noise issue; in already quiet systems, the reviewer heard no sonic change.
Reviews
Online Reviews & Mentions
Forum Mentions
No forum mentions found yet
Verified Dealers
Online Dealers
All Dealers
Zoom out the map to see more dealers
Authorized dealers for Topping HS02
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- Akalın Muzik Ltd. — in-store — İstanbul, Turkey (website)
- Alpha Audio Pte — online and in-store — Singapore, Singapore (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- Audio Concierge — online and in-store — England, United Kingdom (website)
- Audio Emotion — online and in-store — Glenrothes, Scotland, United Kingdom (website)
- Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
- AudioMagic.pl — online and in-store — Warszawa, Województwo mazowieckie, Poland (website)
- AUDIOPHONICS — in-store — Bordeaux, Nouvelle-Aquitaine, France (website)
- AV.com — online and in-store — Bacup, England, United Kingdom (website)
and 19 more verified dealers