TOPPING LA90 Discrete Power Amplifier Review

With selectable stereo and mono modes, the TOPPING LA90 is a discrete amplifier built on the NFCA circuit and listed at $799. The page gives up to 120W per channel in stereo and up to 220W in mono, distortion under 0.0001%, a 143dB SNR, two-step gain and three XLR/TRS inputs, but its text states no load for the power figures.

Specifications

Options and pricing

Two colors are listed at $799 each: Black, which was orderable when the page was read, and White, which showed as sold out. The page names no other difference between them and its text lists no cables or in-the-box items. A 12V trigger interface is among the listed features, though the text does not describe it.

How it compares

The TOPPING B200 Mono Pure Power Amplifier at $599 is a mono amplifier by name, so the LA90 at $799, which lists both stereo and mono modes in one unit, is the one to look at for a single stereo box. The SMSL VMV A2 DAC and Power Amplifier at $999.99 adds a DAC per its name, which the LA90 does not list. The SMSL PA400 Gallium Nitride Power Amplifier at $555 uses GaN transistors per its spec line.

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.