R2750DB - Speaker EDIFIER - Free user manual and instructions

Product type	Active 2.0 speaker (active + passive speaker)
Brand	Edifier
Model	R2750DB (EDF100049)
Output power	14 W + 14 W (treble), 14 W + 14 W (midrange)
Frequency response	45 Hz - 20 kHz
Audio inputs	Line input 1 (RCA), Line input 2 (RCA), Optical, Coaxial, Bluetooth
Wireless connectivity	Bluetooth with A2DP, range up to 10 m
Bluetooth frequency band	2.402 - 2.480 GHz
Bluetooth RF power	≤ 13 dBm (EIRP)
Power supply	Mains (power cord included)
Operating temperature	0 °C to 35 °C
Subwoofer output	Yes (RCA jack)
Controls	Volume, source selection, bass, treble (on active speaker) + remote control
Remote control	Yes, with CR2025 battery included
Source indicator light	Red (optical), Orange (coaxial), Blue (Bluetooth), Green (line input)
Cleaning	Dry or slightly damp cloth, mild detergent
Safety	Double insulation (class II), indoor use only
Included accessories	Power cord, optical cable, passive speaker connection cable, remote control, user manual
Warranty	Check www.edifier.com for terms
Origin	China

Frequently Asked Questions - R2750DB EDIFIER

What to do if I hear no sound?

Check that the speaker is on (indicator lit). Increase the volume with the knob or remote control. Ensure the audio cables are properly connected and the audio source is transmitting a signal. Try changing the source.

How to connect my phone via Bluetooth?

Press the Bluetooth button on the remote control or turn the volume knob to select Bluetooth mode (blue indicator). Enable Bluetooth on your phone and search for 'EDIFIER R2750DB'. If a PIN code is requested, enter 0000.

The remote control does not work. What to do?

Check that the CR2025 battery is properly installed (respect polarity). Replace it if necessary. Make sure there are no obstacles between the remote control and the active speaker. Point towards the infrared sensor.

How to clean the speakers?

Turn off and unplug the speakers before cleaning. Use a soft, dry cloth. If necessary, slightly dampen the cloth with clean water. Never use chemical or abrasive products.

Can I connect these speakers to my television?

Yes, depending on your TV's outputs. Use the optical cable if your TV has an optical output, or the coaxial cable, or line inputs via an RCA adapter. Select the corresponding source on the speaker.

What is the Bluetooth range?

The effective range is approximately 10 meters in open space. Obstacles (walls, furniture) may reduce the range.

How to change audio source?

Briefly press the volume knob to switch between sources (Line input 1, Line input 2, Optical, Coaxial, Bluetooth). Or use the corresponding buttons on the remote control.

Is there a subwoofer output?

Yes, a Subwoofer output (RCA jack) is available on the active speaker. You can connect a powered subwoofer to it.

Can I leave the speakers on permanently?

It is recommended to turn off the speakers when not in use for extended periods to save energy and extend their lifespan. Use the switch located on the back of the active speaker.

What to do in case of background noise or interference?

Ensure the audio cables are properly connected and undamaged. Move the speaker away from sources of interference (routers, phones). If the noise persists, disconnect the audio cables and increase the volume: if you hear no noise at 1 meter, the speaker is functioning normally.

USER MANUAL R2750DB EDIFIER

EN Important safety instruction

• Please read the instructions carefully. Keep it in safe place for future reference.
• Use only accessories approved by the manufacturer.
  • Install the instrument properly by following the instructions in the device connection section.
• Using the product in a 0-35°C environment is recommended. Shipping and storing the product in a 0-35°C environment is recommended.
• To reduce the risk of fire and electric shock, do not expose the product to rain or moisture.
• Do not use this product near water. Do not immerge the product into any liquid or have it exposed to dripping or splashing.
• Do not install or use this product near any heat source (e.g. radiator, heater, stove, or other devices that generate heat).
• Do not place any object filled with liquids, such as vases on the product; neither should any open fire, such as lighted candles be placed on the product.
• Do not block any ventilation openings. Do not insert any object into ventilation openings or slots. It may cause fire or electric shock.
• Keep sufficient clearance around the product to maintain good ventilation (minimum 5cm is recommended).
• Do not force a plug into the jack. Before connection, check for blockage in the jack and whether the plug matches the jack and is oriented to the right direction.
• Keep the provided accessories and parts (such as screws) away from children to prevent from being swallowed by mistake.
• Do not open or remove the housing yourself. It may expose you to dangerous voltage or other hazardous risks. Regardless the cause of damage (such as damaged wire or plug, exposure to liquid splash or foreign object falling in, exposure to rain or moisture, product not working or being dropped, etc.), the repair has to be performed by an authorized service professional immediately.
• Before cleaning the product with dry cloth, always turn off the product and disconnect the power plug first.
• Never use strong acid, alkali, gasoline, alcohol, or other chemical solvents to clean the product surface. Use only neutral solvent or clear water for cleaning.
  • The product must be used at an altitude of lower than 2000m.

Excessively loud music may lead to hearing loss. Please keep the volume in a safe range.

Correct Disposal of this product. This marking indicates that this product should not be disposed with other household wastes throughout the EU. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for environmental safe recycling.

Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

English

Important safety instruction

Power warning:

1. Place the product near the power outlet for easy use.
2. Before use, make sure that the operating voltage is the same as your local power supply. Correct operating voltage can be found on the product plate.
3. For safety purpose, unplug the product during lightning storms or when unused for extended periods of time.
4. Under normal conditions, the power supply may get hot. Please keep good ventilation in the area and exercise caution.
5. Product nameplate and safety warning labels on the housing or bottom of the product or power adaptor.

This symbol is to alert the user to the presence of un-insulated dangerous voltage within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

This symbol is to warn the user not to disassemble the enclosure of the product and there is no user-replaceable part inside. Take the product to an authorized service center for repair.

This symbol indicates that the product is for indoor use only.

This symbol indicates that the product is a CLASS II or double insulated electrical device with no earth requirement.

The MAINS plug is used as the disconnect device, the disconnect device shall remain readily operable.

For wireless product:

1. Wireless product may generate shortwave radio frequencies and interfere with the normal use of other electronic devices or medical equipment.
2. Turn off the product when it's disallowed. Do not use the product in medical facilities, on airplane, at gas stations, near automatic gates, automatic fire alarm system or other automated devices.
3. Do not use the product in the vicinity of a pacemaker within a 20cm range. The radio waves may affect the normal operation of the pacemaker or other medical devices.

What's in the Box

Remote control

Technical line drawing of a speaker chamber with four concentric circles and a flange (no text or symbols)

Technical line drawing of a multi-tiered speaker with concentric circles and mounting holes (no text or symbols)

Simple geometric shape: a trapezoid outline with no text or symbols

User manual Passive speaker Active speaker

3.5mm - RCA audio cable

RCA - RCA audio cable

Fiber optic input audio cable

Power cable

Note: Images are for illustrative purposes only and may differ from the actual product.

Illustration

Diagram of a device panel with labeled ports and connection points

1. Treble control
2. Bass control
3. Volume control/Input selection

Rotate: adjust volume

Press: switch between modes

Press and hold:

Standby status: power on

Line In 1/Line In 2/optical/coaxial mode: standby

Bluetooth mode (disconnected): standby

Bluetooth mode (connected): disconnect Bluetooth

⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑪

1. LED indicator:

Red: Optical

Orange: Coaxial

Blue: Bluetooth

Green: Line In 1/Line In 2

1. Line In input 1/2
2. Bass output
3. Optical input
4. Coaxial input
5. Connect to passive speaker
6. Power switch
7. Power cable

Remote control Illustration

VOLUME LINE1 LINE2 COAX OPT EDIFIER

1. Mute
2. Power on/standby
3. Volume down
4. Volume up
5. Line In 1 input
6. Line In 2 input
7. Optical mode
8. Coaxial mode
9. Bluetooth mode

Press and hold to disconnect Bluetooth

1. Previous track (Bluetooth mode)
2. Play/pause (Bluetooth mode)
3. Next track (Bluetooth mode)

Battery installation and replacement

Rotate the battery cover based on the arrow direction and remove, correctly install the CR2025 battery into the battery compartment and close cover.

① OPEN ② PUSH

WARNING!

1. Don't swallow the battery; danger of chemical burn.
2. The product includes a wafer battery. Swallowing this battery may lead to injury or death. Do not place the new or old battery in where children can get to it.
3. Don't use the product if the battery cover is missing or not closed, and keep the remote inaccessible to children.
4. Please go to the hospital immediately if the battery is swallowed.

Note:

1. Do not place the remote control in places that are hot and humid.
2. Do not charge the batteries.
3. Remove the batteries when unused for a long period of time.
4. The battery should not be exposed to excessive heat such as direct sun, fire or similar.
5. Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.

Connection

Blu-ray player Power switch * This plug type is meant for illustration purpose only.

1. Connect speakers using speaker connecting cable from the active speaker.
2. Connect the active speaker to power source using power cable and turn on power switch, LED light will be on and the speakers should be ready to go.
3. Connect to audio sources using the corresponding audio cable.

English

Basic Operation

Line In 1/Line In 2 mode

1. Press the "LINE 1" or "LINE 2" button on the remote control, or press the "Volume control/Input selection" dial on the active speaker to select Line In 1 or Line In 2 input mode; green LED will flash once in Line In 1 mode, and will flash twice in Line In 2 mode.

2. Connect audio source (mobile phone, tablet, etc.) to Line In 1 or Line In 2 input port (note color matching) on the active speaker using 3.5mm - RCA audio cable.

3. Play music on the connected device and adjust the settings to a desired level.

Optical mode

1. Press the "OPT" button on the remote control, or press the "Volume control/Input selection" dial on the active speaker to select optical mode. LED light will turn red.

2. Connect audio source (Set Top Box, Blu-ray player, etc.) to optical input port on the active speaker using fiber optic input cable.

3. Play music on the connected device and adjust the settings to a desired level.

Coaxial mode

1. Press the "COAX" button on the remote control, or press the "Volume control/Input selection" dial on the active speaker to select coaxial mode. LED light will turn orange.

2. Connect audio source to coaxial input port on the active speaker using coaxial cable (coaxial cable not included).

3. Play music on the connected device and adjust the settings to a desired level.

Note:

Only the standard PCM audio signals (44.1KHz/48KHz/96KHz) function in optical/coaxial mode.

English

Bluetooth Operation

Bluetooth®

Diagram showing wireless communication between two speakers and a laptop, with smartphone icons and signal waves.

1. Press the “ ✕” button on the remote control, or press the “Volume control/Input selection” dial on the active speaker to select Bluetooth mode, LED light will turn blue.
2. Set your Bluetooth device to search for and connect to "EDIFIER R2750DB".
3. Pin code for connection is "0000" if needed.
4. Play music on the connected device and adjust the settings to a desired level.
5. To disconnect Bluetooth, Press the “ ✕” button on the remote control, or press the “Volume control/Input selection” dial on the active speaker.

Note:

1. To enjoy all Bluetooth functions of this product, please ensure your mobile device has A2DP profile.
2. Bluetooth connectivity and compatibility may be different between different source devices, depending on the software versions of source devices.

Specification

Power output: R/L (Treble): 14W+14W

R/L (Mid-range): 14W+14W

R/L (Bass): 40W+40W

Frequency response: 45Hz-20KHz

Audio input: Line In 1/Line In 2/Optical/Coaxial/Bluetooth

Declaration for EU

Frequency Band: 2.402GHz \~ 2.480GHz

RF Power Output: ≤13 dBm (EIRP)

There is no restriction of use.

Troubleshooting

No sound

• Check if the power indicator light is ON.
• Try to turn up the volume using either the master volume control or remote control.
• Ensure the audio cables are firmly connected and the input is set correctly on the speakers.
• Check if there is a signal output from the audio source.

Cannot connect via Bluetooth

• Make sure the speaker is switched to Bluetooth input. If it is in other audio input modes, Bluetooth will not connect. Disconnect from any Bluetooth device by pressing and holding “ ✕” in Bluetooth mode, then try again.
• Effective Bluetooth transmission range is 10 meters; please ensure that operation is within the range.
• Try another Bluetooth device for connection.

The R2750DB does not turn on

- Check if main power is connected, or if the wall outlet is switched on.

Noise coming from speakers

- EDIFIER speakers generate little noise, while the background noise of some audio devices are too high. Please unplug audio cables and turn the volume up, if no sound can be heard at 1 meter away from the speaker, then there is no problem with this product.

To learn more about EDIFIER, please visit www.edifier.com

For Edifier warranty queries, please visit the relevant country page on www.edifier.com and review the section titled Warranty Terms.

USA and Canada: [e-mail]

South America: Please visit www.edifier.com (English) or www.edifierla.com (Spanish/Portuguese) for local contact information.

For more information, please visit our website:

www.edifier.com

@Edifier_Global @Edifier_Global@Edifierglobal

Model: EDF100049

Edifier International Limited

P.O. Box 6264

General Post Office

Hong Kong

Tel: [phone]

Fax: [phone]

www.edifier.com

© 2022 Edifier International Limited. All rights reserved.

Printed in China

NOTICE:

For the need of technical improvement and system upgrade, information contained herein may be subject to change from time to time without prior notice.

Products of EDIFIER will be customized for different applications. Pictures and illustrations shown on this manual may be slightly different from actual product. If any difference is found, the actual product prevails.

FR Consignes de securite importantes

Simple geometric shape: a trapezoid outline with no text or symbols

Technical line drawing of a multi-tiered speaker with concentric circles and mounting holes (no text or symbols)

Technical line drawing of a multi-tiered speaker with concentric circles and mounting holes (no text or symbols)

Câble audio RCA - 3,5 mm Câble audio RCA - RCA

Diagram of a device panel with numbered components and dot patterns, likely for assembly or labeling.

VOLUME LINE1 LINE2 COAX OPT EDIFIER

② OPEN ① ↑ PUSH

AVERTISSEMENT!

Diagram showing wireless communication between two speakers and a laptop, with smartphone icons and signal waves.

D/G (Graves): 40W+40W

Simple geometric shape: a trapezoid outline with no text or symbols

Manual de usuario

Technical line drawing of a speaker chamber with four concentric circles and a flange (no text or symbols)

Technical line drawing of a multi-tiered speaker with concentric circles and mounting holes (no text or symbols)

Cable de audio 3,5 mm-RCA Cable de audio RCA a RCA

Diagram of a device panel with labeled ports and connection lines

Diagram of a device panel with numbered components and internal layout, showing dot patterns and symbols.

1. Indicador luminoso

Rojo: Óptico

Naranja: Coaxial

Azul: Bluetooth

② OPEN ① ↑ PUSH

¡ADVERTENCIA!

Diagram illustrating wireless communication between two speakers and a laptop, with mobile devices shown nearby.

D/I (Graves): 40W+40W

Simple geometric shape: a trapezoid outline with no text or symbols

Bedienungsanleitung

Technical line drawing of a speaker chamber with four concentric circles and a flange (no text or symbols)

Technical line drawing of a speaker with three concentric circles and a flange (no text or symbols)

Diagram of a device panel with four labeled ports and connecting lines, showing internal structure and terminal connections.

Diagram of a device panel with numbered components and dot patterns, likely for assembly or labeling.

VOLUME LINE1 LINE2 COAX OPT EDIFIER

OPEN ② ① ↑ PUSH

WARNUNG!

Line In 1/Line In 2-Modus

Diagram showing wireless communication between two speakers and a laptop, with smartphone icons and signal waves.

Simple geometric shape: a trapezoid outline with no text or symbols

Manuale dell'utente

Technical line drawing of a speaker with four concentric circles and a flange (no text or symbols)

Technical line drawing of a multi-tiered speaker with concentric circles and mounting flanges (no text or symbols)

Cavo audio RCA da 3,5 mm Cavo audio da RCA a RCA

Diagram of a device panel with four labeled ports and connection lines

Diagram of a device panel with numbered components and internal layout, showing connections between pins and indicators.

Verde: Line In 1/Line In 2

VOLUME LINE1 LINE2 COAX OPT EDIFIER

Diagram showing wireless communication between two speakers and a laptop, with smartphone icons and signal waves.

Simple geometric shape: a trapezoid outline with no text or symbols

Manual do utilizador

Technical line drawing of a speaker with four concentric circles and a flange (no text or symbols)

Technical line drawing of a speaker with three concentric circles and a flange (no text or symbols)

Diagram of a device panel with labeled ports and connection lines

Diagram of a device panel with numbered components and dot patterns, likely for assembly or labeling.

VOLUME LINE1 LINE2 COAX OPT EDIFIER

OPEN ① ↑ PUSH

AVISO!

Diagram showing wireless communication between two speakers and a laptop, with smartphone icons and signal waves.

Simple geometric shape: a trapezoid outline with no text or symbols

ユーザーズガイド

Technical line drawing of a speaker with four concentric circles and a flange (no text or symbols)

パッシブスピーカー

Technical line drawing of a speaker with four concentric circles and a flanged top (no text or symbols)

アクティブスピーカー

3.5mm-RCAオーディオケーブル

RCA-RCAオーディオケーブル

注: 画像は参照用です。

電源ケーブル光角型ケーブル

日本語

各部の名称

Diagram of a device panel with labeled ports and connection points

Diagram of a device panel with numbered components and internal layout, showing dot patterns and labeled connections.

VOLUME LINE1 LINE2 COAX OPT EDIFIER

1. ミュート

2. 電源オン/スタンバイ

3.ボリュームダウン

4.ボリュームアップ

1. ライン入力1

6.ライン入力2

OPEN PUSH

ご警告

Diagram showing wireless communication between two speakers and a laptop, with mobile devices and sound waves indicated.