TOPPING Mini300 Power Amplifier Review

TOPPING's Mini300 is a desktop power amplifier that the page lists at $139 in white, black or silver. Its pictured spec table gives 140W x 2 into 4Ω and 85W x 2 into 8Ω at THD+N under 10%, with 125W x 2 and 65W x 2 at THD+N under 1%. A picture describes a fully balanced Class D circuit, and the pictures show balanced TRS and RCA inputs plus a 12V trigger input.

Specifications

Options and pricing

Mini300-White, Mini300-Black and Mini300-Silver are listed at $139 each, and all three were orderable when the page was read. A pictured contents list names the Mini 300, a power adaptor, a power cable and a product information card, and a rear label reads DC 38V at the adaptor input. The colors do not change the price, and a picture says the chassis is all-aluminum.

How it compares

The TOPPING B100 Mono Pure Power Amplifier costs $299 against $139 here, and its name marks it as a mono unit while the Mini300's pictures give 140W x 2. The SMSL VMV A1PRO Gallium Nitride Power Amplifer is $495 and is named for gallium nitride. The Cayin IHA-8 at $999 is named a headphone amplifier, so it is the sibling to read for a headphone setup. The Mini300 suits buyers who want 140W x 2 into 4Ω at THD+N under 10% in one unit at $139, the lowest price of the four.

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.