【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.
All-in-One Amplifier: A compact amplifier integrating a DAC and power amplifier. The HT4S stereo amplifier supports up to 5 channels of output and can switch between 4.1 and 5.0 channels. In addition to Bluetooth, AUX, and optical digital inputs, it supports Pre-Out output and up to 5 speaker outputs.
Suitable for various usage scenarios: Ideal for pairing with outdoor or wall-mounted speakers, it's perfect for setting up 2- to 5-channel audio systems in environments such as patios, cafes, restaurants, and bars. It can also function as a home theater or desktop HiFi system amplifier.
Enhanced Immersion: Take your simulation racing and home theater experiences to a whole new level. Combined with the bass shaker (vibration speaker), the increased power output and bass boost significantly enhance the realism of racing simulator games. When watching movies at home, vibration feedback lets you experience movies on another level, making every movie feel as real as being in a movie theater.
Simple Operation: Featuring a remote control, treble and bass adjustment, power on/off, mode switching, LED mode light bar, and a multi-function total volume knob, this speaker boasts a comprehensively user-friendly design. Enjoying music has never been easier.
Superior Durability: Inheriting Fosi Audio's tradition of all-aluminum alloy body design, the CNC unibody construction and fine metal sandblasting process highlight its minimalist aesthetic. The all-metal body ensures durability, and all products come with Fosi Audio's 24-month warranty.
[※] For better heat dissipation, we recommend using a Fosi Audio cooling fan (sold separately) with the amplifier.
Fosi Audio HT4S Bluetooth Amplifier, 4-Channel Power Amplifier for Outdoor Speakers, Bass Shaker, Sim Racing Cockpit, 4.1/5.0 Channel Stereo Home Audio Receiver with Remote Control, AUX/Optical Input, Japanese Instruction Manual Included
No-delivery refund
