【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.
Sound Output Mode: The digital sound decoder automatically detects and identifies the input digital sound signal format. Hard decoding (real 5.1) is used for 5.1CH sources, and soft decoding (virtual 5.1) is used for 2.0 or 2.1CH sources. It supports 2.0CH and 5.1CH 2-channel output modes, and 2.0CH mode with FL FR output.
Key Features: The 5.1 sound decoder decodes sound from HD multimedia interfaces, optical, coaxial, PC USB, and USB flash drive playback into 5.1 independent output channels (6 channels), which are then amplified for volume output by an amplifier or active speakers.
Multi-input: The sound decoder supports one HD multimedia interface input, one ARC input, one digital coaxial input, one digital optical input, one digital EPC USB input, one 5.0 input, and one USB 2.0 interface input. You can freely switch between various signal sources using buttons or a remote control.
Multi-format support: The decoder supports HD Multimedia Interface version 2.0b (supporting resolutions up to 4K and 60Hz) and is compatible with HD Multimedia Interface version 1.4. It supports HDCP version 2.2, HDCP version 2.3 (compatible with HDCP version 1.4), 3D and HDR, and supports and decodes DTS, DTS ES, DTS WAV, AC3, FLAC, APE, HDCD, AAC, WMV, MP3, M4A and other digital sound formats.
Sampling Frequency: The DSP sampling frequency is 24-bit 192kHz, enabling accurate bit-by-bit sound reproduction. Enjoy the directional sound decoded sound output. After decoding, all sound details are retained in the original HD feed.
Specifications: Item Type: HD Multimedia Interface Sound Decoder Model: UD851B Material: Metal HD Multimedia Interface Support Version: HD Multimedia Interface 2.0b, HDCP 2.3 HD Multimedia Interface Resolution Support: 4Kx2K 1080p 1080i 720p 576p 576i 480p 480i At 24 50 60fps HD Multimedia Interface Maximum Data Rate: 6Gbps HD Multimedia Interface Input/Output TDMS Signal: 0.5-1.5 Volts P-P (TTL) HD Multimedia Interface Input/Output DDC Signal: 5 Volts P-P (TTL) Supported Sound Formats: DTS, DTS ES, AC3, FLAC, APE, WAV, HDCD, AAC, WMV, MP3, M4A etc. DSP Sampling Rate Sampling Frequency: 24bit 192kHz Digital Input Level: 0.1-1V P-P5.1 Analog Output: ≥ 2V RMS (at 0dB)
Signal-to-noise ratio (1kHz): ≥90dB Distortion: ≤0.03% Frequency response: 20Hz to 20kHz Receiving distance: ≤15m/49.2ft Power adapter specifications: AC 100-2
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