KAC-PS4D
4-channel Digital Power Amplifer
The Heart of Kenwood Sound
Amplifiers in the 2007 PS lineup pump out extraordinary power thanks to awesome technologies that only a high-fidelity specialist like Kenwood can offer. Take a look at the performance: Dual Σ (sigma) drive provides bridged output with an excellent damping factor, new K-STAT technology with a slimmer, more compact chip design reduces thermal resistance but increases power for
improved sound quality, and a dual power supply with two transformers ensures steady operation even when the positive and negative loads are unstable. What's more, the digital amplifiers boast slimmer overall dimensions without any sacrifice in performance.
Key Features
| High Performance 4-channel Power Amplifier for Subwoofer |
| Class-D Amplifier Circuit |
| 1200W Max Output Power |
| 2Ω Load Capability |
| Full Function DSP (Digital EQ, Digital X'over) |
Amplifier Features
| Class D Amplifier | Yes |
| Full Range Digital Amplifier | Yes |
| Load Capability | 2Ω Stable |
| Maximum power output | 1200W |
| Rated power output (4Ω) | 75W x 4 (4Ω) |
| Rated power output | 100W x 4 (2Ω) |
| Bridged power output (4Ω) | 200W x 2 |
| CEA-2006 Compliant | Yes |
| Low-pass Filter | Yes |
| High-pass Fliter | Yes |
| Infrasonic filter | Yes |
| Phase inverter 0°(Normal) / 180°(Reverse) | Yes |
| Built-in Full Function DSP | Yes |
| Switched Mode Power supply | Yes, with Power MOS-FET |
| Power Supply with Dual Transformer | Yes |
| Cooling Fan | Yes |
| Amplifier Information Display | Yes |
| Power Indicator | Yes |
| Installer Memory | Yes |
| Last Settings Memory | Yes |
| Line in | 2 RCA (Gold Plated) A/B |
| Input Selector | A/AB |
| Line out | 1 RCA (Gold Plated) |
| Line Out Filter | Yes |
| Single Side Terminals | Yes |
| Full Contact Terminal | Yes |
| Gold Plated Power & Speaker Terminals | Yes |
| Die-Cast Aluminium Heat Sink | Yes |
| Removable Coverplate | Yes |
Amplifier-Specifications
| Maximum power output (4Ω) | 1200W x 1 |
| Rated power output (4Ω, 14,4V) | 100W x 4 (20Hz ~ 200Hz, 0.05%THD) |
| Rated power output (2Ω, 14,4V) | 150W x 4 (1000Hz, 0.5%THD) |
| Rated power output (4Ω, 14,4V) | 300W x 2 (1000Hz, 0.5%THD) |
| Rated power output (4Ω, 12V) | 75W x 4 (20Hz ~ 200kHz, 0.05%THD) |
| Rated power output (2Ω, 12V) | 100W x 4 (1000Hz, 0.5%THD) |
| Rated power output (CEA-2006) | 100Watts RMS x 4 at 4 ohms and 1% THD |
| Low-pass Filter | 40~200Hz (24dB/oct) |
| High-pass Fliter | 50~200Hz (12dB/oct) |
| Infrasonic filter | 20/30/40/50/60Hz (-24dB/oct) B-channel |
| RCA Input Sensitivity | 0.2 ~ 5V |
| Input Impedance | 10kΩ |
| Signal to Noise Ratio | 105dB |
| Signal to noise ratio (CEA-2006) | 78dBa (Reference: 1 Watt into 4 Ohms) |
| Frequency response (+0dB, -3dB) | 20Hz ~ 20000Hz |
| Operating voltage | 14.4V (11V ～ 16V allowable) |
| Maximum current consumption | 60A |
| Dimensions (WxHxD) | 340 x 60 x 225(mm), |
| Weight | 3.8kg |
DSP Specifications
| Frequency Band 1 | 25 / 40 / 60 / 80 / 100Hz |
| Frequency Band 2 | 150 / 200 / 300 / 400 / 500Hz |
| Frequency Band 3 | 600 / 800 / 1k / 1.5k / 2kHz |
| Frequency Band 4 | 3k / 4k / 5k / 6.3kHz |
| Frequency Band 5 | 8k / 10k / 12.5k / 16kHz |
| Quality Factor Band1 - Band3 | 1 / 2 / 3 / 5 |
| Quality Factor Band4 - Band5 | 2 / 4 / 8 / 10 |
| Gain (Boost or Cut) | -9dB - +9dB |
| Delay Control | 0 - 3.9ms (0.1ms Step) |