1. Введение
The OREI BK-4927 is an advanced 8K 4-Port HDMI Audio Extractor Switch designed to simplify your audio and video setup. This device allows you to connect up to four HDMI sources to a single 8K or 4K display while simultaneously extracting audio for external sound systems. It supports the latest HDMI 2.1 and HDCP 2.3 standards, ensuring compatibility with modern media devices and high-resolution content.
Содержимое упаковки:
- 1x OREI BK-4927 HDMI Audio Extractor Switch
- 1x 100–240V Power Adapter (worldwide voltage support)
- 1x пульт дистанционного управления
- 1x Руководство пользователя
Image: OREI BK-4927 HDMI Switch and its included accessories.
2. Настройка и подключение
Follow these steps to correctly set up your OREI BK-4927 HDMI Audio Extractor Switch.
2.1 Connecting Input Sources:
- Connect up to four HDMI source devices (e.g., gaming consoles, Blu-ray players, streaming devices) to the IN 1, IN 2, IN 3, и В 4 HDMI input ports on the rear of the BK-4927 using high-quality HDMI 2.1 cables.
2.2 Connecting Output Display:
- Connect your 8K or 4K display (TV, monitor, projector) to the OUT 1 (eARC) HDMI output port on the rear of the BK-4927. This port supports eARC for audio return.
2.3 Connecting Audio Output:
The BK-4927 offers multiple audio output options:
- HDMI Audio Only (OUT 2): Connect this port to an AV receiver for full-bandwidth audio formats (Dolby Atmos, Dolby TrueHD, DTS-HD Master Audio, LPCM 7.1/5.1/2.0).
- Оптический: Connect to older AV receivers or soundbars using an optical cable for up to 5.1Ch audio.
- L/R (3.5mm): Connect to 2.0 speakers or stereo systems using a 3.5mm audio cable for 2Ch analog audio.
2.4 Подключение питания:
- Connect the included 5V DC power adapter to the 5 В постоянного тока port on the rear of the BK-4927, then plug the adapter into a standard wall outlet. The power indicator LED on the front panel will light up.
Image: Connection diagram illustrating how to connect media sources, display, and audio systems to the BK-4927.
Image: The BK-4927 switch connected to various media sources and a display, highlighting its plug-and-play functionality.
Video: An official OREI video demonstrating how to use the 4x1 HDMI Audio Extractor, including setup and functionality.
3. Инструкция по эксплуатации
The OREI BK-4927 offers flexible control options for switching inputs and managing audio.
3.1 Input Switching:
- Кнопка на передней панели: Нажмите ВЫКЛЮЧАТЕЛЬ button on the front panel to cycle through the HDMI input sources (IN 1, IN 2, IN 3, IN 4). The corresponding input LED will illuminate.
- Дистанционное управление: Используйте пронумерованные кнопки (1, 2, 3, 4) on the remote control to directly select an HDMI input.
- Автоматическое переключение: To enable automatic input switching, press and hold the ВЫКЛЮЧАТЕЛЬ button on the front panel for more than 3 seconds. The АВТО LED will light up. In this mode, the switch will automatically detect and switch to the most recently active input source.
3.2 Audio Mode Selection:
The BK-4927 allows you to select different audio profiles for the extracted audio outputs:
- Нажмите АУДИО button on the front panel or remote control to cycle through the available audio modes: 2.0, 5.1, 7.1, и ПРОХОДИТЬ. The corresponding LED will indicate the active audio profile.
- 2.0: Стерео аудиовыход.
- 5.1: 5.1 channel audio output.
- 7.1: 7.1 channel audio output.
- ПРОХОДИТЬ: Passes through the original audio format without modification.
3.3 eARC Functionality:
- Нажмите eARC button on the front panel or remote control to enable or disable the eARC function. The eARC LED will light up when active. This allows audio return from your TV/display to the HDMI Audio Only output for compatible AV receivers.
Image: The BK-4927 switch demonstrating easy input switching via remote control or front panel buttons.
4. Особенности и характеристики
4.1 Ключевые особенности:
- Совместимость с HDMI 2.1 и HDCP 2.3
- Supports resolutions up to 8K@60Hz and 4K@120Hz
- 48Gbps FRL (Fixed Rate Link) and 18Gbps TMDS bandwidth
- Automatic and Manual Input Switching
- HDR Pass-through (HDR10+, Dolby Vision, HLG)
- Audio De-embedding for Dolby Atmos, DTS:X, DTS-HD Master Audio, Dolby TrueHD, DTS Digital Surround, Dolby Digital & LPCM 7.1/5.1/2.0
- TV eARC & HDMI Audio-Only Output
- Поддержка ЦИК
- Compact Design with durable metal enclosure
4.2 Технические характеристики:
- Размеры продукта: 9.75 x 3 x 6 дюйма (200 мм Д x 84 мм Ш x 20 мм В)
- Вес товара: 12 ounces (430g / 15.16oz)
- Материал: Металл
- Цвет: Черный
- Тип разъема: HDMI
- Совместимые устройства: AV Receiver, Blu-Ray Player, Gaming Console (PlayStation 5, Xbox), Streaming Devices (Apple TV, Fire TV), PC, Projectors.
Image: Detailed list of features supported by the BK-4927 HDMI Switch.
Image: Technical specifications of the OREI BK-4927 HDMI Switch.
Image: The BK-4927 switch demonstrating wide compatibility with various media devices.
5. Техническое обслуживание
- Храните устройство в прохладном, сухом и хорошо проветриваемом месте.
- Avoid exposing the device to direct sunlight, high temperatures, or humidity.
- Протирайте устройство мягкой сухой тканью. Не используйте жидкие или аэрозольные чистящие средства.
- Убедитесь, что все кабели надежно подключены, чтобы предотвратить потерю сигнала.
6. Поиск Неисправностей
- Нет видео/аудио: Check all HDMI and audio cable connections. Ensure the power adapter is securely plugged in and the device is powered on. Verify the correct input source is selected on the switch and the correct input is selected on your display/receiver.
- Плохое качество изображения: Ensure you are using high-quality HDMI 2.1 cables, especially for 8K/4K@120Hz content. Check the resolution settings of your source device and display.
- Проблемы со звуком: Verify the selected audio mode (2.0, 5.1, 7.1, PASS) on the switch matches your audio system's capabilities. Ensure eARC is enabled if using an eARC-compatible receiver. Note that the optical output is limited to 5.1Ch and analog to 2Ch.
- Пульт дистанционного управления не работает: Ensure there are no obstructions between the remote and the switch's IR receiver window. Check and replace the remote control batteries if necessary.
7. Гарантия и поддержка
The OREI BK-4927 HDMI Audio Extractor Switch is backed by OREI’s full Гарантия 1 год for peace of mind. OREI also offers Пожизненная техническая поддержка for its products. For any technical assistance or warranty claims, please contact OREI customer support.
Video: An official OREI product overview video for the 8K 4-Port HDMI Audio Extractor Switch.
