Infinity Kappa One6 -Class D, 600W Mono Subwoofer Amplifier with LPF, Low- and High- Level Inputs, RBC (Remote Bass Control) Included


  • $ 449.95

Infinity Kappa One 6 Mono subwoofer amplifier — 600 watts RMS x 1 at 2 ohms


  • Mono subwoofer amplifier
  • 380 watts RMS x 1 at 4 ohms (600 watts RMS x 1 at 2 ohms)
  • Class D amp technology
  • Variable low-pass filter (32-320 Hz, 12 dB/octave)
  • Dynamic Bass Optimizer:
  • Variable bass boost (0-12 dB)
  • Variable subsonic filter (10-80 Hz)
  • Phase switch (0, 180 degrees)
  • Wired remote level controller included
  • More Features:
  • Preamp and speaker-level inputs
  • speaker wire-to-RCA adapters included
  • 1/0-gauge power/ground wire adapter and E.A.R.L. ground terminal included
  • Wiring and hardware not included with amplifier
  • 4-gauge power and ground leads recommended
  • Fuse rating: 35A x 2
  • Dimensions: 10-1/4"W x 1-3/4"H x 6-15/16"D
  • Warranty: 1 year
  • Our 30-day money-back guarantee


  1. Power Output: The Infinity Kappa One 6 mono amplifier delivers 380 watts RMS x 1 at 4 ohms, and 600 watts RMS x 1 at 2 ohms. The amp's total peak power is 1500 watts.

  2. Protection Circuitry: The amplifier features protection circuitry for thermal overload, DC voltage on the audio output, over- or under-voltage (<9V or >16V), and short circuits. The LED on the back panel of the amp glows red if the amp goes into protection mode.

  3. Remote Level Control: The Kappa One 6 comes with a rotary Remote Level Control module that lets you control the bass output from a convenient location in the vehicle. A 16.5-foot cable is included.

  4. Controls

    Gain: The Kappa One 6's rotary gain control let you match the amp's input sensitivity to the output of the source unit. The maximum input sensitivity of the amplifier 0.2V for a line-level input, and 2V for speaker-level input. The maximum signal level is 20V for both line and speaker level inputs. A small screwdriver (not included) is required to set the gain.

  5. Input Level: The Input Level switch should be set to match the type of input signal connected to the amplifier. If using line-level connections, select LO. If using speaker-level inputs, select Hi1 or Hi2. Hi2 contains a special circuit designed to fool a factory audio system to detect a speaker connected to its output, and should be used only if Hi1 doesn't work.

  6. Low Pass Filter: The amp features a non-defeatable low pass filter with a cutoff frequency between 32Hz and 320Hz. The crossover has a 12dB per octave slope. A small screwdriver is required to adjust the frequency.

  7. Dynamic Bass Optimizer (DBO): The amplifier's DBO circuit features a 0-12dB bass boost. In addition, a subsonic filter helps prevent the amplifier from wasting power by eliminating ultra-low frequencies you can't hear. You can adjust the filter between 10Hz and 80Hz. A small screwdriver is required to adjust the bass boost and subsonic frequency controls.

  8. Phase: You can set the subwoofer phase at 0° or 180°. While playing music with lots of bass, slide the phase switch back and forth. Choose the setting that provides more bass. If there is little difference, leave the switch at 0°.

  9. Auto Turn-on: If your stereo does not have a "Remote Out" wire, you can set the amplifier to automatically turn on when it detects a speaker level signal on the input. If you are connecting a remote turn-on lead, the switch should be left in the "off" position.