1. Uvod
This manual provides essential information for the safe and efficient operation of your LD Systems Road LDRJ8 Portable PA System. Please read this manual thoroughly before using the device to ensure proper setup, operation, and maintenance. Keep this manual for future reference.
The LD Systems Road LDRJ8 is an 8-channel portable PA system designed for versatile audio applications. It features battery-powered operation for mobility and offers multiple connectivity options including XLR, Speakon, Auxiliary, and USB. The system is equipped with a 15-inch Faital Pro neodymium woofer and a 1.4-inch BMS compression driver, delivering a powerful 1400 Watts output. Advanced features include a 1ms predictive peak limiter for distortion-free sound, state-of-the-art analog/digital converters, and an 80-degree x 50-degree rotatable asymmetrical horn flare. Its robust steel construction and integrated wheels make it suitable for various portable sound reinforcement needs.

Slika 1: Prednja strana view of the LD Systems Road LDRJ8 Portable PA System with its retractable handle extended, showcasing the main speaker grille and control panel.
2. Sigurnosna uputstva
- Izvor napajanja: Connect the device only to the specified voltage and frequency. Ensure the power cord is not damaged.
- ventilacija: Ne blokirajte ventilacijske otvore. Osigurajte dovoljan protok zraka oko uređaja kako biste spriječili pregrijavanje.
- Vlaga: Do not expose the device to rain or moisture. Avoid placing liquid-filled objects on the unit.
- čišćenje: Disconnect from power before cleaning. Use a dry cloth. Do not use liquid cleaners or aerosols.
- servisiranje: Za sve servisne radove obratite se kvalifikovanom servisnom osoblju. Ne pokušavajte sami popraviti uređaj.
- plasman: Place the unit on a stable, level surface. Avoid extreme temperatures, direct sunlight, and strong vibrations.
- Sigurnost baterije: The unit is battery-powered. Follow all instructions regarding battery charging and usage. Do not expose batteries to excessive heat.

Figure 2: Rear panel of the LD Systems Road LDRJ8, showing the power input, fuse compartment, voltage selector, and the "SOUNDSYSTEM BATTERY LEVEL" indicator with three LEDs.
3. Sadržaj paketa
Please check the package contents immediately after unpacking to ensure all components are present and undamaged.
- 1 x LD Systems Road LDRJ8 Portable PA System
- 1 x kabl za napajanje
- 1 x Korisnički priručnik (ovaj dokument)
Napomena: If any components are missing or damaged, please contact your dealer immediately.
4. Proizvod je gotovview
4.1. Kontrolna tabla

Slika 3: Detaljno view of the LDRJ8 control panel, featuring input channels (CH 1, CH 2, CH 3/AUX), level controls, EQ (LOW, HIGH), ECHO, MASTER VOL, MP3 player controls, and a display screen.
- CH 1 Input: XLR/TRS combo jack for microphone or line-level sources.
- CH 1 Level: Adjusts the input level for Channel 1.
- CH 2 Input: TRS/TS jack for instrument or line-level sources.
- CH 2 Level: Adjusts the input level for Channel 2.
- CH 3 / AUX Input: RCA stereo input for external audio devices.
- CH 3 / AUX Level: Adjusts the input level for Channel 3 / AUX.
- LOW EQ: Bass frequency adjustment.
- VISOKI EQ: Treble frequency adjustment.
- ECHO: Kontroliše nivo efekta odjeka.
- MASTER VOL: Opšta kontrola jačine zvuka za sistem.
- SNAGA: LED indikator napajanja.
- MP3 Player Section:
- Prikaz: Shows track information and settings.
- UPUTE: Switches between MP3, AUX, Bluetooth, and SD card modes.
- USB ULAZ: USB port za reprodukciju medija.
- Utor za SD karticu: Za reprodukciju medija sa SD kartice.
- Kontrole reprodukcije: Play/Pause, Stop, Previous/Next Track.
4.2. Stražnja ploča

Figure 4: Rear panel of the LDRJ8, detailing the power switch, AC input, fuse, voltage selector, and battery level indicators.
- OFF/ON prekidač: Glavni prekidač za napajanje jedinice.
- Indikator PUNJENJA: LED indikator koji pokazuje status punjenja baterije.
- AC ulaz: Konektor za kabl za napajanje.
- OSIGURAČ: Držač osigurača.
- VOLTAGE Selector: Switch to select between 115V and 230V operation.
- SOUNDSYSTEM BATTERY LEVEL: LED indicators for battery charge status (LOW, 1, 2, 3).
4.3. Karakteristike prenosivosti

Slika 5: Bočna strana view of the LDRJ8, illustrating the retractable handle fully extended and the integrated wheels for easy transport.

Figure 6: Close-up of one of the durable wheels and a metal corner protector, highlighting the robust construction designed for portability.
The LDRJ8 is designed for easy transport with integrated wheels and a retractable handle, similar to luggage. This allows for convenient movement of the system to various locations.
5. Podešavanje
5.1. Početno uključivanje i punjenje
- Ensure the unit's power switch (OFF/ON) on the rear panel is in the OFF pozicija.
- Provjerite VOLTAGE selector on the rear panel matches your local power supply (115V or 230V).
- Connect the supplied power cable to the AC Input on the rear panel and then to a suitable power outlet.
- The CHARGE indicator LED will illuminate, indicating the battery is charging. Allow sufficient time for a full charge before initial battery-powered use.
5.2. Povezivanje audio izvora
- Microphones/Instruments: Connect microphones to CH 1 (XLR) and instruments to CH 2 (TRS/TS). Adjust the respective LEVEL knobs.
- External Audio Devices (e.g., CD Player, Mixer): Connect to CH 3 / AUX using RCA cables. Adjust the CH 3 / AUX LEVEL knob.
- USB/SD kartica: Insert a USB drive into the USB IN port or an SD card into the SD Card Slot for media playback.
- Bluetooth: Refer to the "Operating" section for Bluetooth pairing instructions.
6. Operating the PA System
6.1. Osnovni rad
- After connecting your audio sources, switch the unit's power to ON. The POWER LED will illuminate.
- Slowly increase the MASTER VOL to a desired listening level.
- Adjust individual channel LEVEL knobs for a balanced mix.
- Use the LOW and HIGH EQ knobs to adjust the bass and treble frequencies of the overall mix.
- Apply ECHO effect as desired using the ECHO knob.
6.2. MP3 Player / Bluetooth Operation
- Pritisnite MODE button to cycle through available input modes: MP3 (USB/SD), AUX, Bluetooth.
- USB/SD reprodukcija:
- Umetnite USB disk ili SD karticu sa MP3 files.
- Select MP3 mode. The display will show track information.
- Use the Play/Pause, Stop, Previous/Next Track buttons to control playback.
- Bluetooth uparivanje:
- Select Bluetooth mode. The display will indicate "BT" or "Pairing".
- Na pametnom telefonu ili tabletu omogućite Bluetooth i potražite dostupne uređaje.
- Select "LD Systems LDRJ8" (or similar) from the list to pair.
- Nakon uparivanja, možete bežično strimovati zvuk na PA sistem.
7. Održavanje
- čišćenje: Za čišćenje vanjske strane uređaja koristite meku, suhu krpu. Ne koristite abrazivna sredstva za čišćenje, rastvarače ili voskove.
- Skladištenje: Kada se uređaj ne koristi duži period, čuvajte ga na suhom i hladnom mjestu, dalje od direktne sunčeve svjetlosti i ekstremnih temperatura.
- Održavanje baterije: For optimal battery life, avoid fully discharging the battery frequently. Recharge the battery regularly, even if the unit is not in use, to maintain its capacity.
- Zamjena osigurača: If the unit does not power on, check the fuse on the rear panel. Replace it only with a fuse of the identical type and rating (e.g., T 1 AL / 250V or T 500mA L / 250V).
8. Otkrivanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Nema struje |
|
|
| Nema izlaza zvuka |
|
|
| Bluetooth se ne uparuje |
|
|
| Izobličen zvuk |
|
|
9. Specifikacije
| Feature | Detalj |
|---|---|
| Model | LDRJ8 |
| Brand | LD Systems |
| Vrsta montaže | Podni stalak |
| Izvor napajanja | Battery Powered |
| Tipovi konektora | XLR, Speakon, Auxiliary, USB |
| Materijal | Čelik |
| Težina artikla | 30 funti (otprilike 13.6 kg) |
| Broj kanala | 8 |
| Audio ulaz | Various audio input devices |
| Output Wattage | 1400 W (RMS) |
| Woofer | 15-inch Faital Pro neodymium |
| Compression Driver | 1.4-inch BMS |
| Disperzija | 80 Degree x 50 Degree (rotatable asymmetrical horn flare) |
| Dimenzije (D x Š x V) | 11 x 15 x 17 inča (približno 27.9 x 38.1 x 43.2 cm) |
| Tehnologija povezivanja | Various (including Bluetooth) |
| Kompatibilni uređaji | Smartphone, Tablet, Microphones, Instruments |
| Posebne karakteristike | 1ms predictive peak limiter, State-of-the-art analog/digital converters |
10. Informacije o garanciji
Specific warranty details for the LD Systems Road LDRJ8 Portable PA System are typically provided at the point of purchase or within separate documentation included with the product. Please refer to your purchase receipt or the official LD Systems webstranicu za najtačnije i najnovije uslove garancije.
Generally, warranties cover manufacturing defects under normal use. Damage resulting from misuse, accidents, unauthorized modifications, or improper maintenance is usually not covered. Keep your proof of purchase for any warranty claims.
11. Podrška
For technical support, service, or further inquiries regarding your LD Systems Road LDRJ8 Portable PA System, please contact your authorized LD Systems dealer or visit the official LD Systems website.
- Online resursi: www.ld-systems.com
- Kontakt trgovca: Refer to your purchase documentation for local dealer contact information.





