HiBy RS2 II R2R Audio Player Review

HiBy's RS2 II R2R is an audio player that HiFiGO lists at $439 as a Green Standard Version. Its description is 17 pictures, and they describe a Darwin III R2R DAC built from a matched resistor network, an X1600E dual-core SoC running HiByOS, a 3.55-inch 480x800 screen, 4.4mm balanced and 3.5mm single-ended outputs and two microSD slots that take up to 2TB each. A comparison table in the pictures sets the RS2 II against the RS2 and an unnamed competitor.

Specifications

Options and pricing

One option is listed: RS2 II Green Standard Version at $439, orderable when the page was read. Picture headlines mention a gold Limited Edition, but it is not among the listed options. A picture gives 156g for the aluminium alloy chassis of the standard version and 240g for a brass chassis; the asterisk after the 156g figure has no footnote in that picture. The pictures read for this review give no box list.

How it compares

The FiiO M33 R2R Portable Music Player is also named an R2R player and is listed at $699.99 against $439 here. The SHANLING M1 Plus ES9069Q Bluetooth 5.2 Portable Music Player is $209 and is named for an ES9069Q chip, where the RS2 II pictures describe a resistor-network DAC. Buyers who want R2R at the lower price of the two R2R names fit the RS2 II; those on a tighter budget could look at the M1 Plus.

Shipping, returns and warranty

HiFiGO sells from hifigo.com and says every order leaves its warehouse in China, usually 1-3 business days after it is placed, and says its delivery times are estimates, not promises. Its shipping policy gives the United States 1-2 weeks (about 10 days on average) by Priority and 6-10 days by Premium, both with duties and taxes prepaid by the store; Canada 2-3 weeks; the United Kingdom 1-2 weeks; and Australia 10-15 days. Express couriers (DHL, UPS, FedEx) take 3-7 days, but then the buyer pays any duties and taxes. No shipping page names New Zealand, PO boxes are not accepted, and the free-shipping thresholds differ between the store's own pages, so check the cart. One of its two shipping pages adds that a lost parcel on an order above $50 gets only a 50% refund. A US buyer reported a $40 tariff charge in August 2025, after which HiFiGO said it had added a customs notice at checkout.

Read the return terms before you order. The homepage advertises 7-day returns. Both of HiFiGO's policy pages offer a 7-day dead-on-arrival cover (a replacement or a full refund, with the return postage refunded) and also describe 30-day returns, but a request made 7 to 30 days after delivery loses 30% of the MSRP as a restocking fee (10% more if the packaging is incomplete), plus shipping both ways and duties, and the FAQ on the same pages says there is no refund or exchange once 7 days have passed. One version recommends reselling an opened product locally. Custom IEMs and custom cables cannot be returned, no return address is published, and buyers describe sending items back to China.

HiFiGO's warranty runs one year from the order date for parts and labor; its policy names desktop DACs and amps, IEMs and dongles at one year and gives cables and adapters three months. HiFiGO decides between repair and replacement, the buyer pays the shipping, and faulty items go back for service, not for a refund. Claims go to [email protected], the only contact the store lists: its pages name no company, street address or phone, and its terms are governed by the laws of China.

On Trustpilot, HiFiGO had 4.6 out of 5 from 378 reviews when we checked on 2026-10-28 (91% five-star, 5% one-star), and it had replied to about 75% of negative reviews; Trustpilot notes the store has not invited customers to review recently. The one-star reviews mostly concern the short return window and the deductions on returns, items listed in stock that turned out back-ordered, slow email support and a tariff charge on a US delivery in 2025. HiFiGO says its products are genuine and come in the brands' retail packaging; it does not claim to be an authorized dealer.