Effect Audio Eros S II 8 Wire Cable Review

Effect Audio's Eros S II is an 8-wire earphone cable priced at $299 on HiFiGO's page. Its spec section gives Multi-Material Litz, a Silver Central Solid Core Design, the label 'Silver and Copper Alloy / Pure Silver / Pure Copper Hybrid', 6 multi-sized core bundles, EPO Pro 26 AWG 8 Wires and a ConX 2-pin connector. Three options name 2.5mm, 3.5mm and 4.4mm plugs.

Specifications

Options and pricing

Plug size is the only difference between the option names: Eros S II 8W-2.5mm, Eros S II 8W-3.5mm and Eros S II 8W-4.4mm. All three cost $299 and were orderable when the page was read. The spec section gives a single plug description for the cable, an EA Standard Rhodium Plated Brass Straight Type Plug, and the ConX 2-pin connector is marked '(Default)' without any other connector being named.

How it compares

The Effect Audio Signature Series II Cadmus II 8 Wire Earphone Cable is $299 as well and carries the same 8 Wire name, so price does not separate them. The Effect Audio Signature Series II Ares S II x Cadmus II (A x C II) Earphone Cable starts at $249.90 and its spec line begins 26AWG 8-Wire. The Effect Audio Signature Series II DIONYSUS 8 Wires Earphone Cables start at $429 with 26 AWG 8 Wires. The Eros S II suits a buyer who wants three plug sizes on offer at $299; the Ares S II x Cadmus II suits a smaller budget.

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.

Cables and adapters get three months of warranty from the order date, against one year for DACs, amps and IEMs; a note on the same page also excludes cables from returns for hygiene reasons, while the FAQ says a cable can come back in its original condition. HiFiGO decides between repair and replacement and the buyer pays the shipping. Claims go to [email protected], the only contact the store lists: its pages name no company, street address or phone.

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.