【Important Notice for International Buyers – Tomoayax Premium Audio Hi-Fi Japan】
■ Voltage Compatibility
This product is designed exclusively for use in Japan (AC 100V, 50/60Hz).
Many regions use 120V or 220–240V.
Using this product without a proper transformer in such voltage environments may result in malfunction, overheating, or serious and irreversible damage.
■ Plug Type
This product uses a Japanese plug (Type A or B).
A plug adapter may be required depending on your region.
■ Transformer Requirement (Very Important)
A transformer is required for safe use.
A plug adapter only changes the plug shape and DOES NOT convert voltage.
Using this product without a transformer may cause serious and irreversible damage.
■ Buyer Responsibility
As this is high-end audio equipment, the buyer is fully responsible for confirming compatibility with their local voltage (100V / 120V / 220–240V) and usage environment before purchase.
■ No Return / No Refund Policy
We do NOT accept returns or refunds for:
・Voltage mismatch (including 120V and 220–240V environments)
・Use without a transformer
・Plug incompatibility
・Damage caused by improper setup or usage
■ Liability
We are not responsible for any damage, malfunction, or performance issues caused by improper use or incorrect voltage conditions.
■ Final Notice
Please ensure full understanding of the above before purchasing.
Use only under the correct voltage environment.
The Fosi Audio M04 100W Mini Subwoofer Amplifier features a TPA3116 chip and NE5532 op-amp, delivering 100W of power at 4Ω to drive most home bass and mono speakers. It's a passive subwoofer amplifier with a smoothly moving volume control knob.
Use as a sub-amp or mono amp: The Fosi Audio M04 features a mode switcher that allows you to easily switch between SUB mode and PBLT mode, enabling you to switch between subwoofer bass amp and full-range mono amp with the selector.
Built-in speaker protection circuit and low-pass bass filter: This amplifier improves the bass response of passive subwoofers with subwoofer frequency control, making it practical and powerful. Optimized circuitry ensures absolutely no background noise.
This home Hi-Fi amplifier enables deep, clear bass sound effects in dedicated home theater systems and media rooms. It was designed for customers seeking HiFi sound.
Product Accessories and After-Sales Service: Fosi Audio M04 Amplifier x 1, 19V/4.74A Power Adapter x 1, AC Cable x 1, User Manual x 1. Enjoy a 24-month warranty and 24-hour online after-sales service for a comfortable shopping experience. Please feel free to contact us on Amazon if you have any questions.
Product Parameters: Power Adapter: 19V/4.74A DC Input Range: 12V-24V Termination Impedance: 2 ohms - 8 ohms Maximum Power Output: 100 Watts @ 4 Ohms Full Frequency Response: 20Hz-20kHz (±3dB) Low Frequency Range: 20-200Hz Input Sensitivity ≤0.2mV SNR ≥ 106dB THD ≤0.03
No-delivery refund
