1. Sarrera
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.

1. irudia: Aurrealdea eta alboa view of the LD Systems SUB 88 A Active Subwoofer.
2. Segurtasun-argibideak
Mesedez, irakurri arretaz segurtasun-argibide hauek gailua erabili aurretik. Gorde eskuliburu hau etorkizunean erreferentzia gisa.
- Energia iturria: Connect the device only to a power supply of the type described in this manual or marked on the device.
- Aireztapena: Ziurtatu aireztapen egokia dagoela. Ez blokeatu aireztapen-irekidurak.
- Ura eta hezetasuna: Do not expose the device to rain or moisture. Do not place objects filled with liquids, such as vases, on the device.
- Beroa: Ez jarri gailua bero-iturrietatik gertu, esate baterako, erradiadoreak, bero-erregistroak, sukaldeak edo beste aparatu batzuk (barne ampberoa sortzen duten argitzaileak).
- Garbiketa: Garbitu zapi lehor batekin bakarrik.
- Zerbitzua: Ez saiatu produktu hau zuk zeuk zaintzen, estalkiak irekitzeak edo kentzeak bolumen arriskutsuak eragin ditzakeelakotage edo beste arrisku batzuk. Jarri zerbitzu-zerbitzu guztiak zerbitzu-pertsonal kualifikatuari.
- Kableak: Babestu korronte-kablea oinez ibiltzetik edo atxilotzetik, batez ere entxufeetan, erosotasun-harguneetan eta aparatutik irteten diren puntuetan.
3. Paketearen edukia
Egiaztatu elementu guztiak bertan daudela eta egoera onean daudela paketea desontziratzean.
- LD Systems SUB 88 A Active Subwoofer
- Argibide eskuliburua
4. Produktua amaitu daview
Familiarize yourself with the various components and controls of your SUB 88 A subwoofer.

2. irudia: Aurrealdea view of the subwoofer, showing the bass reflex port.

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

4. irudia: hurbileko planoa view of the rear panel controls, including SUB LEVEL, SUB CROSSOVER, SUB PHASE, and input/output ports.
Rear Panel Controls and Connections:
- POWER switch: Subwoofer-a pizten edo itzaltzen du.
- AC sarrera: Elikatze kablea konektatzen du.
- FUSIBILEEN EDUKIA: Babeserako fusible nagusia dauka.
- INPUT (XLR/TRS Combo Jack): Main audio input for connecting to a mixer or audio interface.
- SUB LEVEL Knob: Subwooferraren irteerako bolumen orokorra doitzen du.
- 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.
- MUGA LED: Illuminates when the internal limiter is active, indicating that the signal is too high.
- SEINALE LED: Audio-seinalea dagoenean pizten da.
- ENERGIA LED: Unitatea pizten denean pizten da.
5. Konfigurazioa
Follow these steps to properly set up your LD Systems SUB 88 A subwoofer.
- Lekua: 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.
- Potentzia-konexioa: 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.
- Audio konexioa:
- 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).
- Hasierako ezarpenak:
- Ezarri AZPI MAILA knob to its minimum (MIN) position.
- Ezarri SUB CROSSOVER knob to an initial setting, typically around 100 Hz for general use. Adjust later for optimal sound.
- Ezarri AZPI FASEA switch to 0°. You may need to adjust this later during calibration.
6. Funtzionamendua
Instructions for operating your LD Systems SUB 88 A subwoofer.
- Piztu: Once all connections are made, switch the POWER button to the ON position. The POWER LED should illuminate.
- Bolumenaren doikuntza: Start playing audio through your system. Slowly increase the AZPI MAILA knob until the desired bass level is achieved. Ensure the LIMIT LED does not illuminate frequently, as this indicates signal clipping.
- Crossover doikuntza: Egokitu 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.
- Fase doikuntza: While playing music with strong bass, toggle the AZPI FASEA 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.
- Jarraipena: 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. Mantentzea
Proper care and maintenance will ensure the longevity of your subwoofer.
- Garbiketa: Disconnect the power before cleaning. Use a soft, dry cloth to wipe the exterior surfaces. Do not use liquid cleaners, aerosols, or abrasive chemicals.
- Aireztapena: Ensure that the ventilation openings are free from dust and debris. Periodically clean them with a soft brush or vacuum cleaner.
- Biltegiratzea: If storing the subwoofer for an extended period, keep it in a cool, dry place, away from direct sunlight and extreme temperatures.
- Fusiblearen ordezkapena: 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. Arazoak
Atal honetan ohiko arazoei eta haien irtenbideei buruzko informazioa aurkituko duzu.
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Botererik ez | Power cable not connected; Power outlet faulty; Blown fuse. | Check power cable connection; Try a different outlet; Replace fuse (refer to service personnel). |
| Soinurik ez | 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. |
| Baxu ahula edo nahasia | Incorrect phase setting; Subwoofer placement; Crossover setting. | Toggle SUB PHASE (0°/180°); Experiment with subwoofer placement; Adjust SUB CROSSOVER. |
9. Zehaztapenak
| Produktu Mota | Instalazioa Subwoofer |
| Ereduaren izena | LDSUB88A |
| Marka | LD Sistemak |
| Hizlari mota | Subwoofer |
| Irteerako potentzia (gailurra) | 600 Watt |
| Konektibitate Teknologia | USBa (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.) |
| Audio irteera modua | Mono |
| Muntatze Mota | Mahai gaineko muntaia |
| Kolorea | Beltza |
| Elementuaren pisua | 15 kilogramo |
| Paketearen neurriak | 66.8 x 42.8 x 33.2 cm |
| Potentzia Mota | Kable elektrikoa |
| Ezaugarri Berezia | Amplifier (Active Subwoofer) |
| Gailu bateragarriak | MP3 erreproduzitzailea, telefonoa (Note: This seems like generic data, actual compatibility is with professional audio equipment like mixers, audio interfaces.) |
| Inguruko soinu-kanalaren konfigurazioa | 2.0 |
10. Bermea eta Laguntza
This product comes with a limited warranty. For detailed warranty information and technical support, please refer to the official LD Systems webwebgunera edo jarri harremanetan zure tokiko banatzailearekin. Gorde erosketaren frogagiria berme-erreklamazioetarako.
Laguntza gehiago lortzeko, bisitatu LD Systems Store on Amazon.





