DUNU Titan S IEMs Review

DUNU's Titan S is a single dynamic driver IEM listed at $59.99, and the page presents it as a reboot of the earlier Titan series with cyberpunk-themed zinc alloy ear cavities. Its specification section gives 32Ω at 1kHz, 110dB, under 0.3% THD and 5Hz-40kHz, and the text describes a polycondensate LCP diaphragm, a CCAW voice coil and an N52 magnet. The page names the driver as 11mm while the store title says 10mm.

Specifications

Options and pricing

Two colors are listed, Grey and Silver, each at $59.99 and both orderable when the page was read. The page shows a crossed-out price of $79.99 next to $59.99. The description talks of a Sandstone Black finish in black and red, which does not match either option name. The cable has a 3.5mm termination plug and 2-pin connectors per the page; no balanced plug, ear tip count or case is named in the text.

How it compares

At the same $59.99, the Moondrop LAN II / LAN 2 10mm Dynamic Driver IEMs have a spec line naming a glass dome composite diaphragm where the Titan S page names an LCP diaphragm. The DUNU Titan S2 Dual-Chamber & Magnetic Circuit Dynamic Driver In-Ear Earphones are $63.20 from the same maker, and both pages carry the note about a third-party curve. The Titan S fits buyers who want a stated 3.5mm termination at $59.99; check the siblings' pages for their plugs.

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.