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Fosi Audio Discount Codes & Coupons

43 offers · updated · save up to 50%

Edited by Danica P. · Reviewed by Ivan P. · offers last checked Nov 4, 2026

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Current Fosi Audio offers

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20% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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15% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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15% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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15% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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15% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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15% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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15% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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Code

15% off your order

Checked Oct 20

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  • Checked in a real cart at Fosi Audio: the store accepted the code and took the discount off.
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Code

12% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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12% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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10% off your first purchase with code WELFOSI10

Seen on Fosi Audio's site · Nov 3 Checked Oct 20, 2026

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  • Source: Fosi Audio's subscription page
  • Checked in a real cart: Oct 20, 2026
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Code

10% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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Code

10% off your order

Last seen Nov 3 Checked Oct 20, 2026

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  • Checked in a real cart: Oct 20, 2026
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Code

10% off your order

Checked Oct 20

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  • Checked in a real cart at Fosi Audio: the store accepted the code and took the discount off.
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Code

10% off your order

Checked Oct 20

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  • Checked in a real cart at Fosi Audio: the store accepted the code and took the discount off.
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Code

10% off your order

Checked Oct 20

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  • Checked in a real cart at Fosi Audio: the store accepted the code and took the discount off.
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Code

10% off your order

Checked Oct 20

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  • Checked in a real cart at Fosi Audio: the store accepted the code and took the discount off.
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Code

10% off your order

Checked Oct 20

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  • Checked in a real cart at Fosi Audio: the store accepted the code and took the discount off.
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Code

10% off your order

Checked Oct 20

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  • Checked in a real cart at Fosi Audio: the store accepted the code and took the discount off.
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Code

Last Chance Save 15% at

Checked Nov 4

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  • Checked in a real cart at Fosi Audio: the store accepted the code and took the discount off.
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Code

15% off select products

Last seen Nov 3 Checked Oct 20, 2026

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  • Applies to selected products only.
  • Checked in a real cart: Oct 20, 2026
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9th anniversary code 9TH40 on select amplifiers (up to 40% off)

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
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Code

9th anniversary code 9TH30 on select products

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
  • Worked with conditions in 2 of 2 cart tries since Oct 20
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Code

9th anniversary code 9TH25 on select products

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
  • Worked with conditions in 2 of 2 cart tries since Oct 20
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Code

9th anniversary code 9TH20 on select products

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
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Code

9th anniversary code 9TH15 on select products

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
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Code

50% Off TDA7498E Stereo Audio Amplifier Orders

Last seen Oct 20

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  • Offer applies to selected products only. Cannot be combined with other promotions or discounts.
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Bundle & Save up to 15%

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
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Bundle and save up to 15% on mixed amps, speakers and accessories

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
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The ultimate audio BOGO: buy 3, get 1 free!

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
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Buy 3, get 1 free on audio products

Seen on Fosi Audio's site · Nov 3

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  • Source: Fosi Audio's sale page
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200 FosiCredits points for joining the rewards program

Seen on Fosi Audio's site · Nov 3

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  • Points redeem for coupons; redeemed discounts cannot be combined with other codes.
  • Source: Fosi Audio's rewards page
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Fosi Audio Veterans Day: up to 30% off

Last seen Nov 3

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Limited-time Deals - up to 30% off

Last seen Oct 20

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Fosi Audio discount 5% off on your first orders

Last seen Nov 3

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Fosi Audio at a glance

Cart tests
28 codes checked last 30 days, 96% worked How we count
Free shipping
On all orders
Returns
30 days
First-order discount
10% off
Rewards program
FosiCredits
Ships internationally
Yes

About Fosi Audio

Fosi Audio makes affordable HiFi gear: stereo and Bluetooth amplifiers, DACs, headphone amps, preamps, speakers, CD players, streamers and in-ear monitors.

Standard shipping is already free on every U.S. order, so savings come down to the 10% newsletter code, seasonal codes on select products and FosiCredits points, whose redeemed discounts cannot be combined with any other promotion or code.

Fosi Audio was started by a founder named Ryan, and its timeline begins in 2017 when its debut product, the V1.0 amplifier, appeared, followed in 2020 by the BT20A Bluetooth mini amplifier. The company says it handles research, development and production in-house and that half of its products are developed together with users; the brand name stands for Foresight, Openness, Sincerity and Innovation.

Current models include the BT20A Pro and BT30D Pro Bluetooth amps, the ZA3 balanced amplifier, the V3 Mono monoblock, the S3 streamer, the Merak and Disc Nano CD players, the Carbon12 in-ear monitors and the StepSense C3, a DAC and headphone amp aimed at gamers. In 2024 Fosi Audio partnered with The Music Works, a Gloucestershire-based UK charity built around music, supplying headphone amplifiers for its classroom music technology program.

Past Fosi Audio sales

  • Anniversary sale (9th anniversary) Usually: Around late September Announced on Fosi Audio's site,

When shoppers look for Fosi Audio coupons

Fosi Audio coupon searches peak in July, about 1.5× a typical month, and dip lowest in September.

US Google searches, Sep 2025 to Aug 2026. Search interest, not sales.

Does Fosi Audio offer free shipping?

Yes. Free by FedEx or USPS, taking 3-7 business days from the U.S. warehouse or 5-15 days when an order ships from China.

How long does Fosi Audio shipping take?

Orders are handled within one business day, not on weekends, and no expedited service is offered for U.S. addresses.

What is Fosi Audio's return policy?

Undamaged gear in original packaging earns a full refund within 30 days; return postage falls on the buyer unless the item is defective, damaged or wrong.

What payment methods does Fosi Audio accept?

PayPal, Apple Pay, Visa, Mastercard, American Express, Discover, JCB and Diners Club are all accepted at the store.

More about shopping at Fosi Audio

Warranty and cancellation
Fosi Audio devices come with a 2-year warranty, and orders cancelled within 24 hours are refunded in full.
FosiCredits
Points come from sign-up (200), purchases at 1 point per $1, birthdays, reviews and social follows, and redeem for discounts or free accessories.
Welcome code
Subscribing to the newsletter unlocks a 10% sitewide code for the first purchase of an amp, DAC or speaker.
Worldwide shipping
Canada, the UK, Europe, Hong Kong and Taiwan receive free standard delivery in 3-7 days, while some remote countries pay $25-$50.

From Fosi Audio's own pages, read Sep 29, 2026.

Sources: Fosi Audio shipping policy, Fosi Audio shipping policy page, Fosi Audio returns policy, Fosi Audio payment options page, Fosi Audio rewards page, Fosi Audio subscription page, Fosi Audio sale page, Fosi Audio bundled offers page

How to use a Fosi Audio discount code

  1. Fosi Audio uses Shopify, whose checkout page carries the discount box in its order summary; the welcome code and any anniversary code both go there.
  2. The 10% welcome code needs a newsletter subscription first and applies sitewide to the first purchase.
  3. A discount redeemed with FosiCredits points cannot be combined with other promotions or discount codes, so a points reward and a sale code are an either-or choice.
  4. The anniversary codes cover select products only, with up to 40% off select amplifiers, so the code has to match what sits in the cart.
  5. The lead time shown at checkout also reveals whether an amp ships from the U.S. warehouse or directly from China.
Where to enter a Fosi Audio code at Shopify checkout (illustration)
Where the code box sits on Shopify's standard checkout (illustration; screens vary).

If your Fosi Audio code doesn't work

  • Combining offers: Discounts redeemed with FosiCredits points cannot be combined with other promotions or discount codes.
  • New customers only: "10% off your first purchase with code WELFOSI10" is for a first order.

More reasons a code fails, and what to try: why promo codes don't work.

More ways to save at Fosi Audio

  • FosiCredits turns routine activity into money off: 200 points for signing up, 1 point per $1 spent, plus points for birthdays, reviews and social follows.
  • At 600 points the reward is $15 off, at 1,000 points 15% off and at 1,500 points 20% off, and free accessories are another way to spend them.
  • The 9th anniversary sale, seen in late September, used a ladder of codes on select products with up to 40% off select amplifiers.
  • Cancelling after 24 hours costs round-trip shipping, so choosing between amplifier models before paying saves money as well.

Fosi Audio questions, answered

What does a newsletter subscription unlock at Fosi Audio?

Subscribing to the Fosi Audio newsletter unlocks a 10% sitewide code for the first purchase.

What did the Fosi Audio 9th anniversary sale include?

The 9th anniversary sale was running in late September, with codes on select products and up to 40% off select amplifiers. That timing reflects when the sale was seen, not a published schedule.

How many FosiCredits points does a $15 or 15% reward take?

Redeeming 600 points gives $15 off, 1,000 points gives 15% off and 1,500 points gives 20% off. None of these rewards can be combined with other codes.

Will a Fosi Audio amplifier ship from the U.S. or from China?

Stock decides: U.S. orders leave a U.S. warehouse in 3-7 business days or ship directly from China in 5-15 days, and the lead time at checkout shows which applies.

How long is the warranty on Fosi Audio amplifiers and DACs?

Fosi Audio devices carry a 2-year warranty.

Who covers return postage on Fosi Audio gear?

The buyer covers return shipping unless the item is defective, damaged or wrong, and after five return requests a handling and restocking fee may also apply.

20% off 20% off your order
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