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KEY500.1
Technical Highlights
- RMS Power: Up to 500W @ 1Ω, 300W @ 2Ω, 150W @ 4Ω.
- Ultra-wide frequency range: 10 Hz to 160 Hz.
- Impedance: Supports up to 40V input signal with FIT 2+.
- More technical details
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KEY500.1 by Kicker
The KEY500.1 from Kicker is a 1-Channel Amplifier that offers versatile features for audio enthusiasts. With an RMS power of up to 500W at 1Ω, it delivers powerful sound. The Auto-EQ technology ensures automatic frequency response correction and bass restoration, while the ultra-broadband frequency range from 10 Hz to 160 Hz covers a wide sound spectrum. With variable crossovers and a steep roll-off of 24 dB/Octave, you achieve precise channel separation. The FIT 2+™ Integration allows for safe operation with factory radios, and the flexibility of input sensitivity guarantees easy adjustment. Despite its compact form factor, the amplifier remains "Start-Stop-Ready" even when the engine is off. An optional remote control allows full bass control for even more personalized enjoyment.
Technical specifications
- 1-Channel Amplifier
- RMS power: 500W @ 1Ω / 300W @ 2Ω / 150W @ 4Ω
- Auto-EQ technology: Automatic frequency response correction and bass restoration
- Frequency range: Ultra-broadband from 10 Hz to 160 Hz
- Variable crossovers: Low Pass (40–160 Hz) & High Pass/Subsonic (10–40 Hz)
- Steep roll-off: 24 dB/Octave for precise channel separation
- FIT 2+™ Integration: Safe operation with factory radios (up to 40V input signal)
- Input sensitivity: Flexible from 125mV (Low) to 40V (High Level)
- Signal quality: Excellent noise ratio of >90 dB (A-weighted)
- Start-Stop-Ready: Remains active at the traffic light even when the engine is off
- Form factor: Extremely compact at only 4.3 x 9.2 x 20.7 cm
- Remote controllable: Full bass control via optional CXARC module
- Scope of delivery: Includes Fuse Holder, mounting materials, and instructions

