The KAC-M1814 Compact 4-Channel Power Amplifier gives your factory or aftermarket speakers a clean power upgrade in a small, versatile chassis. Designed for tough in-car and outdoor use, it fits hidden spaces, works with speaker-level inputs and offers 2 ohm stability plus selectable high-pass filters, so you enjoy clearer, stronger sound in cars, agriculture, boats and powersports vehicles without losing space.
| Key Features | 4 channel digital (Class D) amplifier | |
| Maximum output power 400W | ||
| 4 x 45W @ 4ohm (CEA-2006 standard) | ||
| RCA / Speaker level input | ||
| Signal sensing turn-on/off | ||
| Variable Low- & High-Pass filter | ||
| Compact size (145 x 45 x 99mm) | ||
| Conformal coating protection | ||
| Amplifier Features | Class D Amplifier | Yes |
| Full Range Digital Amplifier | Yes | |
| Load Capability | 4Ω Stable | |
| Maximum power output | 400W | |
| Rated power output (4Ω) | 45W x 4 (4Ω) | |
| CEA-2006 Compliant | Yes | |
| Low-pass Filter | Yes | |
| High-pass Fliter | Yes | |
| Switched Mode Power supply | Yes, Power MOS-FET | |
| Signal Sensing Turn-on | Yes | |
| Line in | 4 RCA / Speaker level | |
| Speaker level Input | Yes | |
| Die-Cast Aluminium Heat Sink | Yes | |
| DC cable Supplied | Yes | |
| Conformal Coating | Yes |
| Amplifier-Specifications | Rated power output (CEA-2006) | 45Watts RMS x 4 at 4 ohms and 1% THD |
| Low-pass Filter | 50~200Hz (-12dB/oct) | |
| High-pass Fliter | 50~200Hz (12dB/oct) | |
| Input Impedance | 10kΩ | |
| Signal to Noise Ratio | 98dB | |
| Signal to noise ratio (CEA-2006) | 82dBa (Reference: 1 Watt into 4 Ohms) | |
| Frequency response (+0dB, -3dB) | 20Hz ~ 20Hz | |
| Operating voltage | 14.4V (11V ～ 16V allowable) | |
| Maximum current consumption | 15A | |
| Dimensions (WxHxD) | 145 x 45 x 99(mm), | |
| Weight | 0.7kg | |
| Unit weight in individual package | 0.99 kg. |
