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Checked 2026-11-02

Fosi Audio vs Apos Audio: Budget Hi-Fi Desk Setup Compared (2026)

Fosi Audio builds its own compact DACs and amps. Apos Audio is an audio retailer that sells other makers' gear. Here is how a desk setup from each stacks up on price and features.

Prices and availability checked on 2026-11-02; they may change.

Shop Fosi AudioBrowse Apos Audio
Fosi Audio K7 desktop DAC headphone amplifier
Image: Fosi Audio

Quick answer

These two are not direct rivals: Fosi Audio is a manufacturer, Apos Audio is a retailer. For the lowest price per feature, a Fosi Audio stack (Q4 DAC at $69.99 plus TB10D amp at $79.99) covers a desk system for about $150. If you want to mix brands (SMSL DAC, FiiO dongle, Moondrop active speakers) and like a 45-day return window, Apos is the place to shop. Pick Fosi for value, Apos for variety.

$69.99Fosi Q4 DAC/headphone amp
$79.99Fosi TB10D power amp
$161.49SMSL SU-3 DAC at Apos
$144.49Moondrop MM3A speakers at Apos

Fosi Audio vs Apos Audio: what you are actually comparing

Fosi Audio sells its own products directly: mini Class D amplifiers, desktop DACs and headphone amps. Apos Audio, per its homepage, offers free US shipping, a 45-day return policy, a lowest price guarantee and a one-year transferable warranty, and carries brands such as SMSL, FiiO, Moondrop and TOPPING. Apos even lists a few Fosi products too, so the choice is less "either/or" than it looks. See our earlier Fosi Audio review and Apos Audio review for the store-level view.

Fosi Audio desk-setup picks

Fosi Audio K7 desktop DAC headphone amplifier
Image: Fosi Audio

Fosi Audio K7 DAC/headphone amp

$199.99

  • AK4493S DAC, TPA6120 headphone amp
  • PCM up to 384kHz/32bit, DSD256
  • Up to 2100mW output
  • Outputs: 4.4mm balanced, 3.5mm, RCA
Check price at Fosi Audio
Fosi Audio ZD3 fully balanced desktop DAC
Image: Fosi Audio

Fosi Audio ZD3 balanced DAC

$179.99

  • ES9039Q2M DAC, XMOS XU316
  • PCM 32bit/768kHz, DSD512
  • HDMI ARC, USB, optical, coax, Bluetooth in
  • XLR/RCA out, OLED display, remote
Check price at Fosi Audio
Fosi Audio TB10D stereo audio amplifier
Image: Fosi Audio

Fosi Audio TB10D power amp

$79.99

  • TI TPA3255 Class D chip
  • 2 x 150W into 8 ohm (unclipped)
  • RCA input, bass/treble/volume knobs
  • Drives passive bookshelf speakers
Check price at Fosi Audio
Fosi Audio Q4 desktop DAC headphone amplifier
Image: Fosi Audio

Fosi Audio Q4 DAC/headphone amp

$69.99

  • USB, optical and coaxial inputs
  • RCA out; headphone amp for 16-200 ohm
  • USB 24bit/96kHz; optical/coax 24bit/192kHz
  • Plug and play, no drivers
Check price at Fosi Audio

The Fosi trade-off is simple: more chipset and connectivity per dollar, but a narrower range. For amp-only decisions, see our Fosi V3 vs BT20A Pro vs TB10D guide.

Want the cheapest complete stack?

See Fosi Audio deals

Apos Audio desk-setup picks

SMSL SU-3 desktop DAC sold by Apos Audio
Image: Apos Audio

SMSL SU-3 desktop DAC

$161.49

  • AKM AK4496 DAC, XMOS XU-316 USB
  • PCM to 768kHz, DSD512
  • XLR balanced and RCA outputs
  • 32-band parametric EQ
Check price at Apos Audio
Moondrop MM3A active desktop speakers sold by Apos Audio
Image: Apos Audio

Moondrop MM3A active speakers

$144.49

  • 66W, 3-inch woofer, 0.65-inch silk dome tweeter
  • Five connection modes incl. LDAC wireless
  • Adjustable PEQ and digital crossover
  • Bass to 55Hz (-3dB) per Moondrop
Check price at Apos Audio
FiiO KA13 dongle DAC headphone amplifier sold by Apos Audio
Image: Apos Audio

FiiO KA13 dongle DAC/amp

$65.99

  • Dual CS43131 DACs
  • 3.5mm and 4.4mm balanced outputs
  • Up to 550mW per channel balanced (32 ohm, desktop mode)
  • PCM 384kHz, DSD256
Check price at Apos Audio

Apos also lists the SMSL A100 Bluetooth mini amp (80W x 2, MA12070 chip) at $82.02, but that listing is an open-box unit, so check stock and condition before ordering.

Comparison table

SetupPartsApprox. priceBest for
Fosi budget stackQ4 DAC + TB10D amp (+ your passive speakers)$149.98Cheapest desk hi-fi
Fosi headphone deskK7 (DAC + headphone amp)$199.99Demanding headphones, 4.4mm balanced
Fosi TV/desk hybridZD3 DAC + TB10D$259.98HDMI ARC, XLR outputs
Apos powered deskSMSL SU-3 + Moondrop MM3A$305.98Compact speakers with EQ
Apos portable-to-deskFiiO KA13 + your headphones$65.99Phone/laptop and IEMs

Totals are simple sums of the listed prices above and exclude cables, shipping and tax.

Pick Fosi if... / Pick Apos if...

Pick Fosi Audio if

  • You already own passive speakers and want a cheap amp.
  • You want the lowest cost per input and output.
  • You are happy with one brand's ecosystem.

Pick Apos Audio if

  • You want to choose between several brands in one order.
  • You value a stated 45-day return window.
  • You want active speakers or a dongle DAC rather than an amp.

Strengths on paper / Watch-outs

Strengths on paper

  • Fosi lists strong chipsets (ES9039Q2M, AK4493S) at modest prices.
  • Apos spans SMSL, FiiO and Moondrop at similar budgets.
  • Both give detailed specs on product pages.

Watch-outs

  • Specs are manufacturer claims; we have not measured anything.
  • Class D amps like the TB10D need a suitable power supply and speaker pairing.
  • Some Apos items are open-box or Apos Certified, so read the listing.
Compare gear at Apos AudioShop Fosi Audio

FAQ

Is Apos Audio the same as Fosi Audio?

No. Fosi Audio makes and sells its own gear. Apos Audio is a retailer that sells products from other makers, plus a few Fosi items.

What is the cheapest hi-fi desk setup here?

On the listed prices, the Fosi Q4 ($69.99) plus TB10D ($79.99) is about $150 before speakers. The FiiO KA13 at $65.99 is the lowest entry if you only use headphones.

Is Fosi Audio worth it for a PC setup?

Its USB DACs are plug and play according to Fosi, and the K7 and ZD3 offer higher-end chipsets. Whether they sound better than alternatives is subjective and untested by us.

Does Apos Audio have a return policy?

Apos states a 45-day return policy and a one-year transferable warranty on its homepage. Check the product page for exceptions.

Related on PickNexo

  • Fosi Audio V3 vs BT20A Pro vs TB10D
  • Edifier desktop speakers compared
  • Best Kiwi Ears IEM by budget
  • Apos Audio review and Fosi Audio review
  • All PickNexo guides

Sources

  • Fosi Audio official store (product pages for K7, ZD3, TB10D, Q4)
  • Apos Audio official store (SU-3, MM3A, KA13, A100 and policies)

PickNexo has not tested these products hands-on; this article summarises official information and reputable reports. Some links are affiliate links, which may earn us a commission at no extra cost to you. Affiliate disclosure.

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