FBT X-Sub 118SA Active Subwoofer User Manual

1. ആമുഖം

Thank you for choosing the FBT X-Sub 118SA Active Subwoofer. This 18-inch processed compact bass reflex subwoofer is designed to provide powerful and extended low-frequency response, making it an ideal companion for FBT X-LITE and X-PRO series loudspeakers. Featuring a 1200W RMS Class D power amplifier and 4 DSP presets, the X-Sub 118SA delivers exceptional performance for various professional audio applications.

Figure 1.1: FBT X-Sub 118SA Active Subwoofer. This image shows the front and side of the black subwoofer, highlighting its robust grille and integrated side handle.

2 സുരക്ഷാ വിവരങ്ങൾ

Please read and understand all safety instructions before operating the FBT X-Sub 118SA. Retain this manual for future reference.

• ഇലക്ട്രിക്കൽ സുരക്ഷ: Always connect the subwoofer to a grounded power outlet. Do not expose the unit to rain or moisture. Disconnect power during lightning storms or when unused for long periods.
• വെൻ്റിലേഷൻ: യൂണിറ്റിന് ചുറ്റും മതിയായ വായുസഞ്ചാരം ഉറപ്പാക്കുക. വെന്റിലേഷൻ തുറസ്സുകൾ തടയരുത്.
• പ്ലേസ്മെൻ്റ്: Place the subwoofer on a stable, level surface. Avoid placing it near heat sources or in direct sunlight.
• സേവനം: ഈ യൂണിറ്റ് സ്വയം സർവീസ് ചെയ്യാൻ ശ്രമിക്കരുത്. എല്ലാ സർവീസിംഗും യോഗ്യതയുള്ള സർവീസ് ഉദ്യോഗസ്ഥരെ ഏൽപ്പിക്കുക.
• ഫ്യൂസുകൾ: Replace fuses only with the same type and rating as indicated on the unit.
• ശ്രവണ സംരക്ഷണം: Prolonged exposure to high sound pressure levels can cause permanent hearing damage. Use appropriate hearing protection when operating at high volumes.

3. പാക്കേജ് ഉള്ളടക്കം

പാക്കേജിൽ എല്ലാ ഇനങ്ങളും ഉണ്ടെന്ന് ഉറപ്പാക്കുക:

• 1 x FBT X-Sub 118SA 18-inch Processed Compact Bass Reflex Active Subwoofer
• 1 x പവർ കോർഡ്
• 1 x ഉപയോക്തൃ മാനുവൽ (ഈ പ്രമാണം)

4 പ്രധാന സവിശേഷതകൾ

The FBT X-Sub 118SA boasts a range of features designed for optimal audio performance:

• Active bass reflex subwoofer design.
• 18mm / 0.70" birch plywood cabinet construction for durability.
• High excursion 18" woofer with a 3" voice coil.
• Powerful 1200W RMS Class D power amplifier with switching power supply.
• Four (4) DSP presets for versatile sound shaping (2 responses with 2 different cut-off frequencies).
• Frequency response from 38Hz to 120Hz (@-6dB).
• Maximum SPL of 136dB peak (Half Space).
• M20 top mount speaker stand socket for satellite speaker integration.
• Control panel with stereo combo XLR/jack inputs, stereo XLR HP filter outputs, level control, preset switch, 0°/180° phase reversal switch, and PRT/LMT LED indicators.
• Two FBT design aluminum handles for easy transport.
• Optional 100mm / 3.93" transport wheels available.

5. സജ്ജീകരണം

5.1 ഫിസിക്കൽ പ്ലേസ്‌മെന്റ്

The X-Sub 118SA is designed for floor standing placement. Due to its omnidirectional dispersion, it can be positioned in various locations within a room or stage. For optimal bass response, consider placing the subwoofer near a wall or in a corner, which can acoustically reinforce low frequencies. Ensure the unit is stable and has sufficient space for ventilation.

5.2 കണക്ഷനുകൾ

The rear panel of the X-Sub 118SA provides all necessary connections and controls. Refer to the diagram below for a visual guide:

Figure 5.1: FBT X-Sub 118SA Rear Control Panel. This diagram illustrates the input/output connections, voltage selector, power switch, and DSP controls on the rear of the subwoofer.

• ഇൻപുട്ട് (IN): നിങ്ങളുടെ ഓഡിയോ ഉറവിടം ബന്ധിപ്പിക്കുക (ഉദാ. മിക്സർ, പ്രീamplifier) to the XLR/Jack combo inputs. The unit supports stereo input.
• Link (LINK): These XLR outputs allow you to daisy-chain the audio signal to other subwoofers or full-range speakers.
• HP Filter Out (HP FILT OUT): These XLR outputs provide a high-pass filtered signal, ideal for connecting to full-range loudspeakers (e.g., FBT X-LITE or X-PRO series) to ensure proper crossover and system integration.

5.3 Power Connection and Voltagഇ സെലക്ഷൻ

പവർ കോർഡ് ബന്ധിപ്പിക്കുന്നതിന് മുമ്പ്, വോളിയം ഉറപ്പാക്കുകtagപിൻ പാനലിലെ ഇ സെലക്ടർ സ്വിച്ച് ശരിയായ വോളിയത്തിലേക്ക് സജ്ജീകരിച്ചിരിക്കുന്നുtage for your region (100-120V~ or 220-240V~). Incorrect voltage selection can damage the unit. Once the voltage is set, connect the supplied power cord to the IEC inlet and then to a grounded AC power outlet.

6. പ്രവർത്തിക്കുന്നു

6.1 പവർ ഓൺ/ഓഫ്

After all connections are made, flip the 'ON' switch on the rear panel to power on the subwoofer. The power indicator LED will illuminate. To power off, flip the switch back to 'OFF'.

6.2 Level Control (LEV)

The 'LEV' knob controls the overall output volume of the subwoofer. Start with the level set to minimum and gradually increase it to achieve the desired bass balance with your main speakers.

6.3 DSP പ്രീസെറ്റുകൾ

The X-Sub 118SA features 4 DSP presets to optimize its performance for different applications and acoustic environments. Use the 'PRESET' button to cycle through the available options:

1. Preset 1 (ORIGINAL 80Hz): Standard response with an 80Hz low-pass filter.
2. Preset 2 (ORIGINAL 120Hz): Standard response with a 120Hz low-pass filter.
3. Preset 3 (PUNCH 80Hz): Enhanced punchy bass response with an 80Hz low-pass filter.
4. Preset 4 (PUNCH 120Hz): Enhanced punchy bass response with a 120Hz low-pass filter.

Select the preset that best suits your audio content and desired sound profile.

6.4 Phase Reversal (PHASE 0°/180°)

The 'PHASE' switch allows you to invert the phase of the subwoofer's output by 180 degrees. This is crucial for achieving optimal acoustic alignment with your main loudspeakers. Experiment with both 0° and 180° settings to find the position that yields the strongest and most coherent bass response in your listening environment.

6.5 PRT/LMT LED Indicators

The 'PRT/LMT' LED indicates the status of the protection and limiter circuits:

• പച്ച: സാധാരണ പ്രവർത്തനം.
• Red (briefly): Limiter is active, indicating that the input signal is approaching or exceeding the maximum safe level. This prevents distortion and protects the speaker.
• ചുവപ്പ് (ഖര): Protection circuit is active, indicating a potential fault or overheating. Reduce the input level or power off the unit and allow it to cool down.

7. പരിപാലനം

Proper maintenance ensures the longevity and optimal performance of your FBT X-Sub 118SA.

• വൃത്തിയാക്കൽ: Use a soft, dry cloth to clean the exterior of the subwoofer. Do not use abrasive cleaners, solvents, or excessive moisture.
• സംഭരണം: When not in use for extended periods, store the subwoofer in a dry, temperate environment, away from direct sunlight and extreme temperatures.
• പരിശോധന: Periodically check the power cord and audio cables for any signs of damage.

8. പ്രശ്‌നപരിഹാരം

If you encounter issues with your FBT X-Sub 118SA, refer to the following common problems and solutions:

If the problem persists after attempting these solutions, please contact FBT customer support or a qualified service technician.

9 സ്പെസിഫിക്കേഷനുകൾ

Detailed technical specifications for the FBT X-Sub 118SA Active Subwoofer:

9.1 ഉൽപ്പന്ന അളവുകൾ

Figure 9.1: FBT X-Sub 118SA Subwoofer with Dimensions. The image shows the subwoofer with its approximate dimensions: 31 inches (Depth) x 27 inches (Width) x 32 inches (Height).

• Net Dimension (WxHxD): 510 x 655 x 630 മിമി
• Product Dimensions (Approximate): 31"D x 27"W x 32"H

10. വാറൻ്റി

The FBT X-Sub 118SA comes with a limited warranty. For specific details regarding the terms, conditions, and duration of your warranty, please refer to the warranty card included with your product or visit the official FBT webസൈറ്റ്. വാറന്റി ക്ലെയിമുകൾക്കായി നിങ്ങളുടെ വാങ്ങലിന്റെ തെളിവ് സൂക്ഷിക്കുക.

11. പിന്തുണ

For technical assistance, service, or further inquiries about your FBT X-Sub 118SA, please contact FBT customer support through their official website or authorized distributors. Provide your product model number and a detailed description of the issue when seeking support.