The Fosi Audio TP-02 is a compact mono Class D subwoofer amplifier built on a TDA7498E chip with an NE5532 op-amp, rated by Fosi at up to 220W into 4Ω, with a SUB FREQ knob, speaker posts for a passive sub and an RCA SUB OUT for a powered one; this kit includes a 24V/4.5A adapter. It suits anyone adding bass to a stereo, PC or TV setup.
Who the Fosi Audio TP-02 is for
Passive subwoofers: Speaker posts drive a 2–8Ω passive sub from the stereo RCA input, and Fosi rates maximum output at 220W into 4Ω.
Powered subwoofers: This upgraded version adds an RCA SUB OUT, so the same box can also feed an active subwoofer.
Blending with main speakers: A SUB FREQ knob sets the low-pass point (Fosi lists 30Hz–260Hz), with a separate volume knob.
TV, PC and media players: Fosi's hookup diagram shows a TV or Blu-ray player, a media player or a computer feeding the stereo RCA input.
Skip it if: you need a stereo amp for main speakers, a phase control or a speaker-level input; the TP-02 is a single-channel sub amp with one stereo RCA input, and its only controls are power, SUB FREQ and volume.
Fosi Audio TP-02 key specs
Amplifier: TDA7498E Class D chip with NE5532 op-amp
Channels: 1 (mono subwoofer)
Output power: Up to 220W into 4Ω (Fosi maximum rating)
Load: 2–8Ω
Input: Stereo RCA (L/R)
Outputs: Speaker posts for a passive sub; RCA SUB OUT for a powered sub
Controls: Power switch, SUB FREQ (30Hz–260Hz), volume
THD / SNR: ≤0.04% / ≥98dB
Power: 24V/4.5A adapter included; amp accepts 12–24V DC
Dimensions: 5.12 x 3.54 x 1.58 in (130 x 90 x 40 mm)
Genuine Fosi Audio stock. Free shipping on every order, 45-day returns.
Fosi Audio TP-02 vs similar options
vs Fosi Audio M03: Steps up to a 300W rating on a 32V/5A supply; pick the TP-02 if 220W covers your passive sub or you also want an RCA SUB OUT for a powered one.
vs Douk Audio NS-14G-PRO: Adds a Bluetooth input and targets passive and DIY sub builds; pick the TP-02 if you also want an RCA SUB OUT to feed a powered subwoofer.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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