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FLI Audio Loaded 450s FL450S-F1

450W Max, Loaded Series 2-Channel Power Amplifier

FLI Audio
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Loaded Series 2-Channel Power Amplifier • 100 Watts x 2 Chan @ 4 Ohm • 115 Watts x 2 Chan. @ 2 Ohm • 450 Watts Max • Selectable Bass EQ • High-Level Inputs • Heavy Duty Aluminum Heatsink • Illuminated FLI Logo

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Product Highlights


Loaded Series 2-Channel Power Amplifier • 100 Watts x 2 Chan @ 4 Ohm • 115 Watts x 2 Chan. @ 2 Ohm • 450 Watts Max • Selectable Bass EQ • High-Level Inputs • Heavy Duty Aluminum Heatsink • Illuminated FLI Logo

Description


FLI Audio brand icon

Authorized dealer

  • Loaded Series 2-Channel Class A/B Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 100 watts x 2 chan.
    • 2 ohm: 115 watts x 2 chan.
    • Bridged, 4 ohm: 225 watts x 1 chan.
  • Max power output: 450 watts
  • MOSFET power supply
  • Optional wired remote bass level control sold separately
  • Power and protection LED indicators
  • Selectable Bass EQ (0, 6, 12 dB bass boost at 45 Hz)
  • Illuminated FLI logos
  • Aluminum plate covers the inputs and outputs for a clean installation
  • Adjustable gain control
  • 2/1 Channel operation
  • High level (Speaker-level) inputs with signal sensing for automatic turn-on
  • Protection circuitry prevents the amplifier from getting to hot
  • Heavy duty aluminum alloy heatsink for extreme heat dissipation
  • Nickel-plated RCA level inputs
  • Nickle-plated screw terminals
  • Variable high-pass filter (45-300 Hz, 24 dB/octave)
  • Variable low-pass filter (45-300 Hz, 24 dB/octave)
  • Frequency response: 20-20,000 Hz
  • Dimensions: 9-7/8"L x 11-1/4"W x 2-1/8"H
  • 8-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
100 watts x 2 channel
RMS Power @ 2 ohms
115 watts x 2 channel
Bridged RMS Power
225 watts x 1 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
2-Channel
Total Peak Power Output
450 watts
Total RMS Power Output
225 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.2%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
45 - 300 Hz
Low-Pass Crossover Frequency
45 - 300 Hz
Channel Separation
90 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
Optional (Accessory required and sold separately)
Fuse Rating
30A x 1 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

FL450S-F1

Weight:

8.00lbs

Internal SKU:

fl450sf1

Internal Product ID:

23955

Product and How-to Videos


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.