Softears RSV-MK2 5BA IEMs Review

Softears' RSV-MK2, which the page presents as the successor to the RSV, puts five balanced armature drivers on each side in a four-way crossover with four independent acoustic tubes. HiFiGO lists it at $669. The page gives 7Ω at 1kHz and 122dB/Vrms, a 2-pin 0.78mm connector and a 4.4mm balanced plug, and says a 4.4mm to 3.5mm adapter is included.

Specifications

Options and pricing

One option is listed, named RSV-MK2, at $669 and orderable when the page was read. The page shows a crossed-out price of $699 next to $669. It says the cable ends in a 4.4mm balanced termination plug and that a 4.4mm to 3.5mm adapter is included, and it lists UC ear tips and Type-B balanced silicone ear tips among the features.

How it compares

The Moondrop Variations is $599 and its name counts 2EST+2BA+1DD. The Simphonio RX10 is $640 and its name gives a single 10mm dynamic driver. The DUNU x Effect Audio DK3001BD Limited Edition is listed at $749.99, and its spec line reads 1DD+4BA+4Micro Planar Hybrid Architecture. At $669 the RSV-MK2 is the one here whose page counts only balanced armature drivers; choose it for an all-armature design, and one of the others for dynamic, electrostatic or planar drivers.

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.