1. Pengenalan
Terima kasih kerana membeliasing the EDIFIER R2750DB MKII Active Bookshelf Speakers. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your speakers. Please read this manual thoroughly before use and retain it for future reference.
The EDIFIER R2750DB MKII is a high-performance 3-way, 4-amplifier active speaker system designed for superior audio reproduction. It features advanced connectivity options including HDMI eARC, Bluetooth 6.0 with LDAC, optical, coaxial, and RCA inputs, along with a dedicated subwoofer output. Control is facilitated via an infrared remote and the EDIFIER ConneX mobile application, offering extensive sound customization.
2. Kandungan Pakej
Buka kotak dengan berhati-hati dan pastikan semua item berikut disertakan:
- R2750DB MKII Main Unit (2 speakers, 1 pair)
- Speaker Dust Covers ×2 (pre-installed, removable)
- Power Cord (1.8m) ×1
- Speaker Connection Cable (5m) ×1
- Optical Digital Cable (1.5m) ×1
- 3.5mm-RCA Audio Cable (2.5m) ×1
- 3.5mm-RCA Conversion Adapter (0.1m) ×1
- Alat Kawalan Jauh × 1
- AAA Batteries (for remote control) ×2
- Panduan Mula Pantas ×1
- Safety Precautions ×1

Image: All included accessories for the R2750DB MKII speakers.
3. Persediaan
3.1 Penempatan Pembesar Suara
For optimal sound performance, place the speakers on a stable, flat surface, such as a bookshelf or dedicated speaker stands. Ensure there is adequate space around the speakers for proper ventilation. Position the speakers at an equal distance from your listening position, forming an equilateral triangle for the best stereo imaging. The recommended dimensions per speaker are approximately 27.9 cm (Depth) x 22.3 cm (Width) x 39.5 cm (Height).

Image: Speaker dimensions (Depth 27.9cm, Width 22.3cm, Height 39.5cm).
3.2 Menyambung Pembesar Suara
- Main Speaker to Passive Speaker: Connect the main (right) speaker to the passive (left) speaker using the provided 5m speaker connection cable. Ensure the correct polarity (+ to + and - to -) for optimal sound.
- Sambungan Kuasa: Connect the power cord to the main speaker and then plug it into a wall outlet.
3.3 Sambungan Input Audio
The R2750DB MKII offers multiple input options. Choose the appropriate connection method for your audio source:
- EARC HDMI: For connecting to TVs, PCs, or game consoles that support HDMI eARC. Use a high-quality HDMI 2.1 cable. This connection supports advanced audio formats like Dolby Atmos and DTS:X, and simplifies wiring by transmitting audio, video, and control signals simultaneously.
- Input Optik: Connect to devices with an optical digital output (e.g., TV, game console) using the provided optical cable.
- Input sepaksi: Connect to devices with a coaxial digital output.
- Input Talian RCA: Connect to devices with RCA audio outputs (e.g., DVD player, MP3 player, PC) using the 3.5mm-RCA audio cable or adapter.
- Bluetooth: For wireless connection to smartphones, tablets, laptops, or game consoles. Refer to section 4.5 for Bluetooth pairing instructions.
- SUB KELUAR: To enhance bass, connect an external active subwoofer (e.g., Edifier T5s) to the SUB OUT port on the main speaker.

Image: Audio connection diagram for various devices.

Image: HDMI eARC connection to a TV.
4. Operasi
4.1 Hidupkan/Mati Kuasa
Locate the power switch on the rear panel of the main speaker. Flip the switch to the 'ON' position to power on the speakers. Flip to 'OFF' to power off.
4.2 Pemilihan Input
You can select the audio input source using the 'VOLUME/SOURCE' knob on the rear panel of the main speaker, the remote control, or the EDIFIER ConneX app.
- Panel belakang: Rotate the 'VOLUME/SOURCE' knob to adjust volume. Press the knob to cycle through input sources (Line In, Optical, Coaxial, HDMI, Bluetooth).
- Kawalan Jauh: Use the dedicated input buttons (e.g., HDMI, OPT, COAX, LINE IN, Bluetooth) to switch sources directly.
- Apl EDIFIER ConneX: Select the desired input source from the app interface.
4.3 Kawalan Kelantangan
Adjust the master volume using the 'VOLUME/SOURCE' knob on the rear panel or the volume buttons on the remote control.
4.4 Tone Control (Bass/Treble)
The rear panel of the main speaker features dedicated knobs for Bass and Treble adjustment. Rotate these knobs to fine-tune the low and high frequencies to your preference. Further equalization is available via the EDIFIER ConneX app.

Image: Rear panel controls and remote control overview.
4.5 Berpasangan Bluetooth
- Switch the speaker input to Bluetooth mode. The Bluetooth indicator light will flash.
- Pada peranti audio anda (telefon pintar, tablet, dll.), dayakan Bluetooth dan cari peranti yang tersedia.
- Select "EDIFIER R2750DB MKII" from the list of devices to pair.
- Once successfully paired, the Bluetooth indicator light will glow steadily.
The R2750DB MKII supports Bluetooth 6.0 with LDAC for high-quality lossless audio transmission. It also supports multipoint connection, allowing seamless switching between multiple paired devices.

Image: Bluetooth audio codec comparison, highlighting LDAC's high transfer speed.
4.6 Using the EDIFIER ConneX App
The EDIFIER ConneX app provides enhanced control and customization options for your speakers.
- Muat turun aplikasi EDIFIER ConneX daripada gedung aplikasi peranti anda.
- Ensure your speakers are powered on and in Bluetooth pairing mode or already connected via Bluetooth.
- Open the app and follow the on-screen instructions to connect to your R2750DB MKII speakers.
- Dalam apl, anda boleh:
- Tukar sumber input.
- Laraskan kelantangan.
- Select from 4 preset sound modes.
- Utilize the 9-band EQ for custom sound adjustments.
- Access other settings and features.

Image: EDIFIER ConneX app interface for sound customization.
5. Penyelenggaraan
- Pembersihan: Use a soft, dry cloth to clean the speaker surfaces. Do not use abrasive cleaners, waxes, or solvents.
- Penutup Habuk: The speakers come with removable dust covers. Keep them on when not in use to protect the drivers from dust and damage.
- Persekitaran: Avoid placing the speakers in direct sunlight, near heat sources, or in areas with high humidity. Ensure proper ventilation to prevent overheating.
- Kabel: Regularly check all cables for any signs of damage. Replace damaged cables immediately.
6. Penyelesaian masalah
If you encounter any issues with your EDIFIER R2750DB MKII speakers, please refer to the following common problems and solutions:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada bunyi |
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| Sambungan Bluetooth gagal |
|
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| Alat kawalan jauh tidak berfungsi |
|
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| Bunyi herot |
|
|
7. Spesifikasi
| Ciri | Perincian |
|---|---|
| Jenama | edifier |
| Model | R2750DB MKII |
| Total Power Output (RMS) | 144W (RMS) |
| Output Kuasa Puncak | 288 Watt |
| Respons Kekerapan | 45Hz - 40kHz |
| Nisbah Isyarat-kepada-Bunyi (S/N) | ≥85 dB(A) |
| Sensitiviti Input | Line In: 700 ± 50mV; Optical/Coaxial: 350 ± 50mFFS; HDMI: 350 ± 50mFFS; Bluetooth: 450 ± 50mFFS |
| Antara Muka Input | HDMI eARC, Optical, Coaxial, RCA Line In, Bluetooth 6.0 |
| Antaramuka Output | SUB OUT (for external subwoofer) |
| Pemandu Woofer | 7 inch (long-stroke) |
| Pemandu jarak pertengahan | 4.5 inci |
| Pemandu Tweeter | 1 inch (silk dome) |
| Versi Bluetooth | 6.0 (with LDAC support) |
| Julat Bluetooth | Sehingga 10 meter (tidak terhalang) |
| Kaedah Kawalan | Remote Control, Physical Knobs, EDIFIER ConneX App |
| Speaker Dimensions (per unit) | 27.9 cm (D) x 22.3 cm (W) x 39.5 cm (H) |
| Speaker Net Weight (per unit) | lebih kurang 8.3 kg |
| Jumlah Berat Produk | 16.57 kg |
| Bahan Kepungan | Wood, Plastic, Metal, Aluminum |
| warna | coklat |
| asal usul | China |
8. Waranti & Sokongan
8.1 Maklumat Waranti
The EDIFIER R2750DB MKII speakers come with a Waranti terhad pengeluar 1 tahun dari tarikh pembelian. Waranti ini meliputi kecacatan bahan dan mutu kerja di bawah penggunaan biasa. Ia tidak meliputi kerosakan yang disebabkan oleh salah guna, kemalangan, pengubahsuaian tanpa kebenaran atau haus dan lusuh biasa.
Sila simpan bukti pembelian anda untuk tuntutan waranti.
8.2 Sokongan Pelanggan
For technical assistance, warranty service, or further inquiries, please contact Edifier customer support through their official webtapak atau peruncit tempat anda membeli produk tersebut.
Anda boleh mendapatkan lebih banyak maklumat dan sumber sokongan dengan melawati Edifier Brand Store.