iBasso IT01X 1DD MMCX IEMs Review

The page describes the iBasso IT01X as a single dynamic driver in-ear monitor with brass cavities and a double-cavity driver unit, and HiFiGO lists it at $99.99. The feature list gives 16Ohms, 108dB/mW, distortion under 1% and 10Hz-40kHz, and the cable uses MMCX connectors.

Specifications

Options and pricing

Black is the only option, at $99.99, and it was orderable when the page was read; the page shows a crossed-out price of $139.99 beside it. The page text names three colors, Red, Blue and Black, but only black appears as an option. The cable is described as a replaceable MMCX cable; the page text gives no plug size, cable length or cable material and lists no box contents.

How it compares

At $99.99 the IT01X costs the same as the QoA Affinity, which names a 10mm dynamic driver per side, and the Moondrop Rays 1DD+1 Planar Drivers Gaming IEMs, which add a planar driver to the dynamic one. The Sivga Que UTG is $94.90 with a single dynamic driver per its spec line. The IT01X suits buyers who want MMCX connectors and a dB/mW sensitivity reference; the Rays suit those who want a gaming-oriented hybrid.

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.