TempoTec MARCH V DAC/Headphone Amp Review

The TempoTec MARCH V is pictured as a DAC and headphone amplifier with USB, optical and coaxial inputs, XLR and RCA line outputs and two headphone outputs, 6.35mm and 4.4mm, and HiFiGO lists it from $178 for the M5 and $198 for the M5 BT. The page has no text description, only 23 pictures, and 15 of them were not opened. The pictures read give 1750mW+1750mW at 32Ω from the 4.4mm output, a weight of 986g and an AC 110-240V input.

Specifications

Options and pricing

Four options are listed: the M5 named for an EU plug or a US plug at $178 each, and the M5 BT named for an EU plug or a US plug at $198 each, all orderable when the page was read. Pictures give the Bluetooth input to the M5 BT and M5 Limited only and list a Bluetooth antenna for those two in the box. The pictures also show an M5 Limited edition, which is not among the options. The pictured box list names a remote control, a power cable, a USB A to USB C cable, a 6.35 to 3.5 adapter and a user manual.

How it compares

At $178 for the M5 and $198 for the M5 BT, the MARCH V costs more than the FiiO KA15 Dual CS43198 Portable DAC & Headphone AMP at $109.99 and less than the SHANLING UP6 Dual ES9069Q Portable Bluetooth DAC / AMP at $199. Both of those titles say Portable, and the UP6's names Bluetooth, while the MARCH V pictures show a 986g unit with an AC 110-240V input, XLR and RCA line outputs and a 4.4mm output. The MARCH V suits a buyer who wants those line outputs; the two portable titles suit one who wants a unit to carry.

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.