FLI ACTIVE - User Manual

This document serves as an instruction and installation manual for a FLI Active Enclosure, likely a car audio subwoofer with an integrated amplifier. The manual provides guidelines for mounting, connections, setup, troubleshooting, and warranty information, along with a list of accessories.

Function Description:

The FLI Active Enclosure is designed to provide enhanced bass response in a car audio system. It features an integrated amplifier, making it a self-contained unit that simplifies installation. The enclosure is intended to be mounted in a dry, solid location within the vehicle. The amplifier includes controls for gain, bass boost, and frequency crossover, allowing users to customize the sound output to their preferences and integrate it seamlessly with existing car speakers. The unit is designed for ease of installation, with clear instructions for wiring and setup.

Important Technical Specifications:

• Input Sensitivity: 40 mV
• Continuous Power: 10 V – 14.4 V (likely referring to the operating voltage range)
• Signal / Noise Ratio: > 100dB
• Fuse: 20 Amp (required for power protection)
• Variable Gain Control: Allows adjustment of the input signal level.
• Crossover: 40 – 250 Hz variable 12 dB crossover. This feature allows the user to set the frequency range at which the amplifier's filter will take effect, enabling control over the depth and punchiness of the bass. A 40 Hz setting produces deep bass, while a 250 Hz setting provides a more punchy bass response.

Usage Features:

• Low Level Input (RCA): For connection to head units with RCA outputs.
• Gain Control: Matches the input signal of the head unit to the amplifier. The setup routine involves turning the gain to minimum, setting head unit crossovers to flat and bass/treble to zero, turning up the head unit volume to approximately 3/4, and then slowly increasing the amplifier gain until distortion is heard or an uncomfortable listening level is reached, then slightly reducing it.
• Frequency Control (Crossover): Allows users to set the frequency at which the amplifier's filter takes effect, variable from 40 Hz to 250 Hz. This enables blending the subwoofer's frequencies with the rest of the car speakers for a cohesive sound.
• Power On Indicator: An LED on the front of the amplifier illuminates when correctly wired and operating.
• Bass Boost: The manual mentions a 24dB gain adjustment for the bass boost feature available on FLI Loaded amplifiers, suggesting this feature is present or compatible with the active enclosure.

Maintenance Features:

• Troubleshooting Guide: The manual includes a section for common issues like the amplifier not powering up or a blown fuse, with steps to diagnose and resolve them.
  • Amplifier Will Not Power Up / Power On Indicator Not Illuminated:
    • Check for good ground connections (to bare metal, not painted surfaces).
    • Use a multimeter to check for at least 7V DC at the remote terminal.
    • Use a multimeter to check for battery voltage at the positive terminal.
    • Check all fuses.
  • Fuse Blown:
    • Check both positive supply and ground for shorts.
    • Verify positive wire connection to the amplifier's positive terminal.
    • Verify negative wire connection to the amplifier's ground terminal.
    • Ensure a 20 amp fuse is fitted.
• Warranty: All FLI goods are covered by a full twelve-month warranty from the date of original receipt and proof of purchase. The warranty card should be returned within seven days of purchase. Products with issues during the warranty period should be returned to the point of purchase in their original packaging, complete and with no missing items. If the store cannot fix the product, it may be returned to FLI, a process that takes approximately 7 working days.
• Accessories: The manual lists several FLI accessories that can be ordered, including an in-dash remote control for bass boost, a line-level convertor, a 10 gauge FLI wiring kit, a 1 Farad digital power capacitor, a baseball cap, and a T-shirt. These accessories can be purchased from the FLI audio website.

The manual emphasizes the importance of proper installation, including using appropriate gauge wiring (at least 10 gauge for power and ground, 18 gauge for remote turn-on), ensuring secure connections, and placing a fuse within eighteen inches of the battery on the power cable. It also advises against mounting the amplifier upside down to prevent overheating and damage. For optimal performance, it recommends using FLI cabling and accessories.