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Infinity Kappa One
Mono subwoofer amplifier 800 watts RMS x 1 at 2 ohms
Item # 108KAPPA1 | MFR # Kappa One
This item is no longer available.
Our take on the Infinity Kappa One by Crutchfield's Gabrielle Thorndyke
Infinity designed the latest Kappa Series amplifiers to deliver increased efficiency and performance from an extremely compact package. These slim powerhouses stand only 1-3⁄4" tall, so they'll fit easily in spaces where other amps just won't go. And efficient heat dissipation means these amps won't get too hot in tight quarters.
The Kappa One mono amplifier makes an ideal match for your high-performance Kappa sub, dispensing up to 800 watts of clean power. The amp's Class-D design generates less heat, eliminating the need for large heatsinks. Non-stop Thermal Protection circuitry adjusts the amp's output so it runs cool, no matter how hard you push your system. Balanced speaker-and preamp-level inputs reject engine whine and other noise from your car's electrical system.
The unique detachable power/ground plug lets you connect and disconnect large-gauge power cables in one easy step. The amp's Dynamic Bass Optimization circuit lets you filter and shape the bass for the best possible performance from your sub and enclosure.
What's in the Box:
- Mono amplifier
- Three 40A ATO fuses
- 4-Gauge terminal adapter (installed)
- Instructions (English/ German/ French/ Spanish/ Dutch/ Italian/ Swedish/ Danish/ Finnish/ Polish/ Russian)
- Warranty/Product Registration card
- mono subwoofer amplifier
- 500 watts RMS x 1 at 4 ohms (800 watts RMS x 1 at 2 ohms)
- CEA-2006 compliant
- variable low-pass filter (32-320 Hz, 12dB per octave)
- bass boost: 0-12 dB
- frequency response: 20-320 Hz
- Non-stop Thermal Protection ciruitry
- Class-D amplifier design
- differential balanced speaker-and preamp-level inputs
- 4-gauge power and ground leads and a 120-amp fuse recommended wiring and hardware not included with amplifier
- fuse rating: 40A x 3
- 7-1/16"W x 1-13/16"H x 14-9/16"D
- warranty: 3 years
- Our 60-day money-back guarantee
Infinity Kappa One Reviews
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Features and Specs
|RMS Power Output (Watts x Channels)||
500 x 1
|Peak Power Output (Watts x Channels)||N/A|
|Power at 2 Ohms (Watts x Channels)||800 x 1|
|Bridged Power (Watts x Channels)||N/A|
|Minimum Impedance Bridged||N/A|
|Minimum Impedance Unbridged||2|
|Best Frequency Response||20-320 Hz|
|THD at Rated RMS Power||1%|
|Signal to Noise Ratio||85 dB|
|Low-Pass Crossover Frequency||32-320 Hz|
|Low-Pass Slope (dB/octave)||12 dB/oct|
|High-Pass Crossover Frequency||N/A|
|High-Pass Slope (dB/octave)||N/A|
|Bass Boost||0-12 dB|
|Bass Boost Frequency||10-80 Hz, Variable|
|Speaker Level Inputs||RCA (adapter req)|
|Preamp Outputs||1 pair|
|Parts Warranty||3 Years|
|Labor Warranty||3 Years|
Class D/DirectFET Technology: The Infinity Kappa One features high-power Class D circuit topology with DirectFET transistors, a design that increases power output and overall efficiency, with improved heat transfer from the transistors to the chassis.
CEA-2006 Compliance: The specifications given by Infinity for the Kappa One comply with the CEA-2006 Amplifier Power Standard from the CEA (Consumer Electronics Association). All manufacturers who comply with the standard can display the CEA-2006 logo on their product.
Protection Circuitry: The amp features protection circuits and will shut itself down in the following cases:
- DC Output: DC voltage is detected on the amplifier output
- Over/Under Voltage: Voltage at the +12V (Battery) terminal is too high or too low
- Short Circuit: Short circuit in speaker or speaker wire
Non-Stop Thermal Protection: Kappa amps protect themselves against excess heat with circuits that cool the amplifier down by gradually reducing output, instead of shutting down completely.
Status LEDs: Three LEDs on top of the chassis indicate the status of the amplifier. Two Power LEDs indicate the amplifier is on. The Protection LED indicates one of the protection circuits has engaged.
Input Level: Rotary control to match the level of the preamp input signal; 200mV to 6V.
Low Pass Crossover: The Kappa One has a 12 dB per octave low pass crossover; continually variable from 32-320 Hz.
Dynamic Bass Optimization (DBO): The Dynamic Bass Optimizer (DBO) is used to enhance low frequency reproduction in your vehicle. Conventional bass-boost circuits only increase bass at a fixed frequency, and cause the amp to consume considerable power. The DBO allows you to adjust the frequency, as well as the boost level (up to 12dB), allowing you to fine-tune the bass in your system to optimize performance. The frequency control is a subsonic filter.
Power: Set screw terminal for power wire from battery; handles up to 4 gauge wire.
Remote: Set screw terminal for remote turn-on lead; handles up to 12 gauge wire.
Ground: Set screw terminal for ground; handles up to 4 gauge wire.
Preamp Input: 1 pair of RCA jacks. The amp will accept a speaker level signal through the RCA inputs. A speaker wire to RCA adapter is needed (136XDCLR2S, sold separately).
Preamp Output: 1 pair of RCA jacks (full range signal for adding amplifiers).
Speaker Output: 4 Set screw terminals for connecting speaker wires; handles up to 8 gauge; there are two sets of terminals to make it easier to connect multiple subwoofers; they are internally wired in parallel.
Fuses: 3 Slots for 40A ATO fuses (installed).
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