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OWNER'S MANUAL
FRX
AMPLIFIERS
FEATURES:
• Full Range Capable Class-D Amp
• Compact Size and Wide Band Crossover for more Applications
• Variable Full Crossover Filter: LPF / FULL / HPF
• Surface Mount Component
• Audio Precision Quality Control Verification
• Stable & Reliable Four Layers PCB Trace Layout
• Heavy Duty Heat-sink Chassis and Forced Cooling System Build In
• Power & Protection Led Light Status Indicator
• Short Circuit, Thermal and Voltage Protection
• Level Knob Remote Control (mono models only)

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Summary of Contents for DS18 FRX1K

  • Page 1 OWNER’S MANUAL AMPLIFIERS FEATURES: • Full Range Capable Class-D Amp • Compact Size and Wide Band Crossover for more Applications • Variable Full Crossover Filter: LPF / FULL / HPF • Surface Mount Component • Audio Precision Quality Control Verification •...
  • Page 2: Installation

    DS18 FRX AMPS Thank you for choosing DS18 FRX amps! To Take full advantage of the DS18 FRX amps you have just purchased, please read and follow the instructions in this manual. As with all of our products, professional installation by an authorized DS18 FRX amps dealer is highly...
  • Page 3: Input Section

    INPUT SECTION Because of the wide range of head unit output configurations all DS18 ATOM amps have an adjustable input sensitivity of “Gain”. The gain is not a volume or a power limiting control like a throttle.
  • Page 4: Bass Boost

    BASS BOOST DS18 FRX amps amplifiers have an adjustable bass boost. Begin your adjustments at low volume. If you do not hear any improvement then woofer does not need any bass boost. The Low Pass Filter (LPF) must be switched on for the bass boost to activate.
  • Page 5 It is advisable to test the ground with an ohmmeter between the ground cable and the negative battery cable to ensure a good low resistance connection. Some allows used in modern cars do not offer the best ground. If you believe this is the case - first consult with the vehicle manufacturer.
  • Page 6 INSTALLATION FRX1K FRX2.5K FRX2K FRX3.5K RCA AUDIO SIGNAL REMOTE IN SPEAKERS...
  • Page 7: Normal Mode

    INSTALLATION - FRX4K4 NORMAL MODE...
  • Page 8: Bridge Mode

    INSTALLATION - FRX4K4 BRIDGE MODE...
  • Page 9: Wiring Configuration Examples

    WIRING CONFIGURATION EXAMPLES DIMENSIONS FRX1K: 179.2 / FRX2K: 259.2 / FRX2.5K: 309.2 / FRX3.5K: 349.2 / FRX4K4: 479.2 (mm) FRX1K: 7 / FRX2K: 10.2 / FRX2.5K: 12.17 / FRX3.5K: 13.74 / FRX4K4: 18.87 (Inches) 56.5 (mm) / 2.22” FRX1K: 186 / FRX2K: 228 / FRX2.5K: 278 / FRX3.5K: 318 / FRX4K4: 448 (mm)
  • Page 10 WARRANTY Should your amplifier require service: Please consult with the dealer from which it was purchased, or contact DS18 CAR AUDIO Local Dealer. Do not attempt to return your amplifier directly to us without first calling for a Return Authorization Number. Units received without any accompanying Return Authorization Number will be processed more slowly.

This manual is also suitable for:

Frx2kFrx2.5kFrx3.5kFrx4k4

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