LD Systems SUB 88 A - Active Subwoofer 2 x 8" User Manual

1. Okwu mmalite

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.

Foto 1: N'ihu na akụkụ view of the LD Systems SUB 88 A Active Subwoofer.

2. Ntuziaka nchekwa

Biko gụọ ntuziaka nchekwa ndị a nke ọma tupu ị rụọ ọrụ ngwaọrụ ahụ. Debe akwụkwọ ntuziaka a maka ntụaka n'ọdịnihu.

• Isi mmalite ike: Connect the device only to a power supply of the type described in this manual or marked on the device.
• Igwe ikuku: Gbaa mbọ hụ na ikuku ikuku dị mma. Akwụsịla oghere ikuku ikuku ọ bụla.
• Mmiri na mmiri: Do not expose the device to rain or moisture. Do not place objects filled with liquids, such as vases, on the device.
• Okpomọkụ: Edokwala ngwaọrụ n'akụkụ ebe okpomọkụ dị ka radiators, ndekọ okpomọkụ, stovu, ma ọ bụ ngwa ndị ọzọ (gụnyere amplifiers) nke na-emepụta okpomọkụ.
• Nhicha: Jiri akwa kpọrọ nkụ hichaa naanị.
• Ije ozi: Anwala ịnye ngwaahịa a n'onwe gị ka imeghe ma ọ bụ iwepụ mkpuchi nwere ike ikpughe gị na voltaji dị egwutage ma ọ bụ ihe egwu ndị ọzọ. Tụtụ aka n'aka ndị ọrụ ruru eru.
• Gịnị: Chebe eriri ọkụ ka ị ghara ịgagharị ma ọ bụ tuo ya, ọkachasị na plọg, ebe nchekwa dị mma, na ebe ha si na ngwa ahụ pụta.

3. Ihe ngwugwu

Hụ na ihe niile dị ma dị mma mgbe ị na-ewepụ ha.

• LD Systems SUB 88 A Active Subwoofer
• Akwụkwọ ntuziaka

4. Ngwaahịa gafereview

Familiarize yourself with the various components and controls of your SUB 88 A subwoofer.

Foto 2: N'ihu view of the subwoofer, showing the bass reflex port.

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

Ọgụgụ 4: nso nso view of the rear panel controls, including SUB LEVEL, SUB CROSSOVER, SUB PHASE, and input/output ports.

Rear Panel Controls and Connections:

• Mgbanwe IKE: Na-agbanye ma ọ bụ gbanyụọ subwoofer.
• Ntinye AC: Na-ejikọta eriri ọkụ.
• Ihe njide FUSE: 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.
• Ọkụ LED: Illuminates when the internal limiter is active, indicating that the signal is too high.
• Ọkụ ọkụ: Na-enye ọkụ mgbe mgbama ọdịyo dị.
• Ike Ikanam: Na-enye ọkụ mgbe agbanyere unit ahụ.

5. Nhazi

Follow these steps to properly set up your LD Systems SUB 88 A subwoofer.

1. Nkwanye: 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.
2. Njikọ ike: 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.
3. Njikọ Audio:
   • 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).
4. Ntọala mbụ:
   • Tọọ nke Ọkwa SUB knob to its minimum (MIN) position.
   • Tọọ nke SUB CROSSOVER knob to an initial setting, typically around 100 Hz for general use. Adjust later for optimal sound.
   • Tọọ nke SUB PHASE switch to 0°. You may need to adjust this later during calibration.

6. .rụ ọrụ

Instructions for operating your LD Systems SUB 88 A subwoofer.

1. Ike Na: Once all connections are made, switch the POWER button to the ON position. The POWER LED should illuminate.
2. Ndozi olu: Start playing audio through your system. Slowly increase the Ọkwa SUB knob until the desired bass level is achieved. Ensure the LIMIT LED does not illuminate frequently, as this indicates signal clipping.
3. Ndozigharị crossover: Hazie nke 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.
4. Ndozi usoro: While playing music with strong bass, toggle the SUB PHASE 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.
5. Nleba anya: 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. Nlekọta

Proper care and maintenance will ensure the longevity of your subwoofer.

• Nhicha: Disconnect the power before cleaning. Use a soft, dry cloth to wipe the exterior surfaces. Do not use liquid cleaners, aerosols, or abrasive chemicals.
• Igwe ikuku: Ensure that the ventilation openings are free from dust and debris. Periodically clean them with a soft brush or vacuum cleaner.
• Nchekwa: If storing the subwoofer for an extended period, keep it in a cool, dry place, away from direct sunlight and extreme temperatures.
• Ndochi fiusi: 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. Nchọpụta nsogbu

Rụtụ aka na ngalaba a maka okwu nkịtị na azịza ha.

9. Nkọwapụta

10. Akwụkwọ ikike na nkwado

This product comes with a limited warranty. For detailed warranty information and technical support, please refer to the official LD Systems webma ọ bụ kpọtụrụ onye na-ekesa ihe n'ógbè gị. Debe ihe akaebe nke ịzụrụ ihe gị maka akwụkwọ ikike.

Maka enyemaka ọzọ, gaa na LD Systems Store on Amazon.