FiiO K13 DAC/Headphone Amp Review

FiiO's K13 is listed at $309.99 in black or silver under a store title that calls it a DAC and headphone amplifier and names ES9039Q2M*2. The page has no description text, and the eight product photos read for this review show printed labels only: two XLR balanced outputs, four RCA line outputs, coaxial, optical and USB-C inputs, and AC and DC power inlets. None of the photos labels a headphone output or names a DAC chip.

Specifications

Options and pricing

Two options are listed, K13 Black and K13 Silver, each at $309.99 and orderable when the page was read. The photos read for this review show both finishes with identical rear labels and show only the unit, so they give no in-the-box list or cable information.

How it compares

At $309.99 the K13 sits between the SMSL RAW-HA1 CS43131 Headphone Amplifier & Speaker Amplifier at $249.99 and the FiiO WARMER R2R Fully Balanced Desktop DAC & Headphone Amp at $349.99, with the XDUOO XA02/XA-02 ES9039Q2M MQA Balanced DAC & Headphone AMP at $199 below both. Their titles carry details such as a speaker amplifier, an R2R design or MQA, while the K13's photos read for this review give none. Pick the K13 only if its printed XLR and RCA outputs and three digital inputs are what you need.

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.

FiiO's own notice "A letter to FiiO fans" (undated) lists HiFiGo among sellers it has not authorized and recommends buying FiiO products from local agents. FiiO says it still services genuine products bought from such sellers if the buyer emails [email protected], but the buyer pays the freight and duties if a unit must go back to 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.