1. Introduzzjoni
The LD Systems SUB88A active subwoofer features two 8" loudspeakers and delivers 600 W Peak power. The SUB88A is the active version of the SUB88, one of our most popular subwoofers. It is equipped with a 600 Watt (peak) mono amplification module that offers excellent sound and dynamic characteristics. This subwoofer is the ideal partner for our SAT62A active loudspeakers, our SAT42/242/62 passive loudspeakers in combination with an external amplifier (like DJ200), or for all types of satellites if you wish to enrich the sound with deep and powerful bass.

Figura 1: Quddiem u ġenb view of the LD Systems SUB 88 A Active Subwoofer.
2. Istruzzjonijiet tas-Sigurtà
Jekk jogħġbok aqra dawn l-istruzzjonijiet ta' sigurtà bir-reqqa qabel ma tħaddem l-apparat. Żomm dan il-manwal għal referenza futura.
- Sors tal-Enerġija: Connect the device only to a power supply of the type described in this manual or marked on the device.
- Ventilazzjoni: Aċċerta ruħek li jkun hemm ventilazzjoni xierqa. Timblokkax xi fetħiet tal-ventilazzjoni.
- Ilma u Umdità: Tesponix l-apparat għax-xita jew għall-umdità. Tpoġġix oġġetti mimlija b'likwidi, bħal vażuni, fuq l-apparat.
- Sħana: Tpoġġix l-apparat ħdejn sorsi tas-sħana bħal radjaturi, reġistri tas-sħana, stufi, jew apparat ieħor (inkluż amplifiers) li jipproduċu sħana.
- Tindif: Naddaf biss b'ċarruta niexfa.
- Servizzi: Tippruvax isservi dan il-prodott lilek innifsek peress li l-ftuħ jew it-tneħħija tal-kisi jista' jesponik għal voltage jew perikli oħra. Irreferi l-manutenzjoni kollha lil persunal tas-servizz kwalifikat.
- Kejbils: Ipproteġi l-korda tad-dawl milli timxi fuqha jew maqrusa, partikolarment fil-plakek, ir-reċipjenti tal-konvenjenza, u l-punt fejn joħorġu mill-apparat.
3. Kontenut tal-Pakkett
Iċċekkja li l-oġġetti kollha huma preżenti u f'kundizzjoni tajba meta tiftaħ il-pakkett.
- LD Systems SUB 88 A Active Subwoofer
- Manwal ta' Istruzzjoni
4. Prodott Aktarview
Familiarize yourself with the various components and controls of your SUB 88 A subwoofer.

Figura 2: Quddiem view of the subwoofer, showing the bass reflex port.

Figure 3: Rear panel of the subwoofer, displaying input/output connections and controls.

Figura 4: Close-up view of the rear panel controls, including SUB LEVEL, SUB CROSSOVER, SUB PHASE, and input/output ports.
Rear Panel Controls and Connections:
- Swiċċ POWER: Ixgħel jew jitfi s-subwoofer.
- Input AC: Tgħaqqad il-kejbil tad-dawl.
- Detentur tal-FJUŻ: Contains the main fuse for protection.
- INPUT (XLR/TRS Combo Jack): Main audio input for connecting to a mixer or audio interface.
- SUB LEVEL Knob: Adjusts the overall output volume of the subwoofer.
- SUB CROSSOVER Knob (80 Hz - 200 Hz): Sets the upper frequency limit for the subwoofer. Frequencies above this setting will be sent to connected satellite speakers (if applicable).
- SUB PHASE Switch (0°/180°): Adjusts the phase of the subwoofer output to match the phase of your main speakers, preventing phase cancellation.
- LED LIMITU: Illuminates when the internal limiter is active, indicating that the signal is too high.
- LED SINJAL: Jixgħel meta jkun hemm sinjal awdjo.
- LED POWER: Jiddawwal meta l-unità tkun mixgħula.
5. Setup
Follow these steps to properly set up your LD Systems SUB 88 A subwoofer.
- Pjazzament: Position the subwoofer on a stable, flat surface. For optimal bass response, consider placing it in a corner or near a wall. Avoid blocking the bass reflex port.
- Konnessjoni tal-Enerġija: Ensure the POWER switch is in the OFF position. Connect the supplied power cable to the AC Input on the rear panel and then to a suitable power outlet.
- Konnessjoni tal-Awdjo:
- Connect the audio output from your mixer, audio interface, or pre-amplifier to the INPUT (XLR/TRS Combo Jack) on the subwoofer's rear panel using a balanced XLR or TRS cable.
- If connecting satellite speakers, ensure they are connected to the appropriate outputs on your mixer/interface, or if your setup allows, route them through the subwoofer's high-pass outputs (if available, though not explicitly listed for this model, typical for subwoofers).
- Settings Inizjali:
- Issettja l- SUB LIVELL knob to its minimum (MIN) position.
- Issettja l- SUB CROSSOVER knob to an initial setting, typically around 100 Hz for general use. Adjust later for optimal sound.
- Issettja l- SUB FAŻI switch to 0°. You may need to adjust this later during calibration.
6. Joperaw
Instructions for operating your LD Systems SUB 88 A subwoofer.
- Qawwa Mixgħul: Once all connections are made, switch the POWER button to the ON position. The POWER LED should illuminate.
- Aġġustament tal-Volum: Start playing audio through your system. Slowly increase the SUB LIVELL knob until the desired bass level is achieved. Ensure the LIMIT LED does not illuminate frequently, as this indicates signal clipping.
- Aġġustament Crossover: Aġġusta l- SUB CROSSOVER knob to blend the subwoofer's output seamlessly with your main speakers. A lower setting (e.g., 80 Hz) is suitable for larger main speakers, while a higher setting (e.g., 120 Hz or more) may be needed for smaller satellite speakers. Experiment to find the best balance.
- Aġġustament tal-Fażi: While playing music with strong bass, toggle the SUB FAŻI switch between 0° and 180°. Choose the setting that produces the most impactful and defined bass. This compensates for acoustic phase differences between the subwoofer and main speakers due to their placement.
- Monitoraġġ: Pay attention to the SIGNAL and LIMIT LEDs. The SIGNAL LED confirms audio input. If the LIMIT LED flashes frequently or stays lit, reduce the input signal level from your source or decrease the SUB LEVEL to prevent distortion and potential damage.
7. Manutenzjoni
Proper care and maintenance will ensure the longevity of your subwoofer.
- Tindif: Disconnect the power before cleaning. Use a soft, dry cloth to wipe the exterior surfaces. Do not use liquid cleaners, aerosols, or abrasive chemicals.
- Ventilazzjoni: Ensure that the ventilation openings are free from dust and debris. Periodically clean them with a soft brush or vacuum cleaner.
- Ħażna: If storing the subwoofer for an extended period, keep it in a cool, dry place, away from direct sunlight and extreme temperatures.
- Sostituzzjoni tal-fjus: If the unit does not power on, check the fuse in the FUSE holder. Replace it only with a fuse of the same type and rating as specified on the unit. Refer to qualified service personnel if unsure.
8 Issolvi l-problemi
Irreferi għal din it-taqsima għal kwistjonijiet komuni u s-soluzzjonijiet tagħhom.
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| Ebda qawwa | Power cable not connected; Power outlet faulty; Blown fuse. | Check power cable connection; Try a different outlet; Replace fuse (refer to service personnel). |
| L-ebda ħoss | Input cable not connected; SUB LEVEL too low; Source device not playing audio; Crossover set too low. | Check input cable; Increase SUB LEVEL; Verify source audio; Adjust SUB CROSSOVER. |
| Distorted sound / LIMIT LED constantly on | Input signal too high; SUB LEVEL too high. | Reduce input signal from source; Decrease SUB LEVEL. |
| Bass dgħajjef jew imdardar | Incorrect phase setting; Subwoofer placement; Crossover setting. | Toggle SUB PHASE (0°/180°); Experiment with subwoofer placement; Adjust SUB CROSSOVER. |
9. Speċifikazzjonijiet
| Tip ta' Prodott | Installazzjoni Subwoofer |
| Isem tal-Mudell | LDSUB88A |
| Brand | Sistemi LD |
| Tip ta' Kelliem | Subwoofer |
| Qawwa tal-Ħruġ (Ogħla) | 600 Watts |
| Teknoloġija tal-Konnettività | USB (Note: This might be an error in the source data, typically audio inputs are XLR/TRS for professional subwoofers. The image shows XLR/TRS combo jack.) |
| Modalità tal-Ħruġ tal-Awdjo | Mono |
| Tip ta 'Immuntar | Immonta fuq il-mejda |
| Kulur | Iswed |
| Piż tal-oġġett | 15 Kilogrammi |
| Dimensjonijiet tal-Pakkett | 66.8 x 42.8 x 33.2 ċm |
| Tip ta' Enerġija | Corded Elettriku |
| Karatteristika Speċjali | Amplifier (Active Subwoofer) |
| Apparati Kompatibbli | MP3 Player, Smartphone (Note: This seems like generic data, actual compatibility is with professional audio equipment like mixers, audio interfaces.) |
| Surround Sound Channel Konfigurazzjoni | 2.0 |
10. Garanzija u Appoġġ
This product comes with a limited warranty. For detailed warranty information and technical support, please refer to the official LD Systems webis-sit jew ikkuntattja lid-distributur lokali tiegħek. Żomm il-prova tax-xiri tiegħek għal talbiet ta' garanzija.
Għal aktar għajnuna, żur il- LD Systems Store on Amazon.