SMSL D-6S ES9039Q2M DAC Review

Listed at $199.99 in four plug types, the SMSL D-6S is a desktop DAC that the page also writes as D6S. Per the page it uses an ESS ES9039Q2M chip and an XMOS XU316 USB processor, decodes 32-Bit/768kHz PCM and Native DSD512, and takes Bluetooth V5.1 input. The specification section lists XLR and RCA output levels, THD+N of 0.00006% and four input ports, while the page text mentions no headphone output.

Specifications

Options and pricing

Four options are listed, all at $199.99 and all orderable when the page was read: D-6S-AU Plug, D-6S-EU Plug, D-6S-US Plug and D-6S-UK Plug. The option group is labeled Color, but the names carry only a plug region. The page text lists no package contents or adapter details, and its feature list mentions a remote control and gold-plated input-output ports.

How it compares

The SMSL SU-6 is $169.99 with an ES9038Q2M chip in its spec line and Bluetooth 5.0 with LDAC in its name, against $199.99 and an ES9039Q2M with Bluetooth 5.1 here. The TOPPING DX5 II is $299 and a DAC and amp with dual ES9039Q2M chips by name, where the D-6S page mentions no headphone output. The SMSL B100 is $215.99 and a Bluetooth 5.1 audio receiver with an AK4493S chip by name. The D-6S suits buyers who plan a separate headphone amp; the DX5 II suits those who want an amp in the same unit.

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.