K+ series
K4+ and K12+ use Class D power amplifier modules and high-quality power frequency toroidal transformers, making them extremely efficient and compact.
Class I™ amplifier technology is applied to the K6+ and K8 amplifiers, giving them the dual advantages of high efficiency and high-quality sound.
feature
- Energy efficient Class I™ power modules (K6+/K8+).
- Class D power modules (K4+/K12+).
- High quality toroidal transformer power supply.
- Single modulation dual channel power amplifier technology
- High CMRR balanced input for enhanced noise rejection.
- Independent channels on the front panel have over-temperature, protection and peak clipping warning lights.
- Independent channel power indicator and -5dB / -10dB / -20dB signal indicator on the front panel.
- Rear panel XLR input sockets and link sockets.
- SpeakON Nl4 output sockets (K6+/K8+/K12+) on the rear panel.
Parameter
| Model | K4+ | K6+ | K8+ | K12+ |
| Power | (output power per channel with resistive load at the same time under 220V~50Hz stable frequency power supply condition) | |||
| 8Ω Stereo Power | 400W x2** | 700W x2** | 900W x2** | 1200W x2 |
| 4Ω Stereo Power | 450W x2** | 1000W x2** | 1200W x2** | 2300W x2** |
| 8Ω bridge power | 900W** | – | – | 4800W x2 |
| Other parameters | ||||
| Frequency Response | 20Hz-20kHz( +0/-1.5dB) | 20Hz-20kHz( +0/-0.8dB) | 20Hz-20kHz( +0/-0.8dB) | 20Hz-20kHz( +0/-1.5dB) |
| Total Harmonic Distortion | ≤0.1% | ≤0.05% | ≤0.05% | ≤0.1% |
| Signal to Noise Ratio | ≥ 85dB | ≥ 85dB | ≥ 85dB | ≥ 90dB |
| Input Sensitivity | 0.775/1.4V | 0.775V | 0.775V | 0.775/1.4V |
| Input impedance (balanced/unbalanced) | 40kΩ/20kΩ | 20kΩ/10kΩ | 20kΩ/10kΩ | 40kΩ/20kΩ |
| Voltage Gain (8 ohms) | 37dB | 38.5dB | 39.5dB | 42dB |
| Output Category | Class D | Class I™ | Class I™ | Class D |
| Cooling | Front to Back | |||
| input section | Balanced input XLR female socket/balanced parallel to XLR male socket | |||
| Output Section | BINDING POST (red and black columns); SPEAKON speaker screw seat (K6+/K8+/K12+) | |||
| Front Panel Indicators | Power/Signal/-5dB-10dB/-20dB/Clipper/Protect | |||
| Front Panel | Power switch/volume control knob | |||
| Size/Weight | ||||
| Product Dimensions (mm) | 483 x 254 x 89 | 483 x 298 x 89 | 483 x 298 x 89 | 483 x 419 x 89 |
| Outer Packaging Dimensions (mm) | 560 x 435 x 170 | 560 x 435 x 170 | 560 x 435 x 170 | 595 x 565 x 170 |
| Gross Weight | 10.3kg | 11.1kg | 12.71kg | 20.3kg |
Notice:
1. This power is measured in accordance with EIA standards.
2, *, this power is measured using a 40ms pulse 1kHz sine wave at 1% total harmonic distortion.
3.**, this power is measured using a 20ms pulse 1kHz sine wave at 1% total harmonic distortion.
4, ***, this power is measured using a 10ms pulse 1kHz sine wave at 1% total harmonic distortion.
3. AES reserves the right to interpret the above parameters. The parameters will change without further notice. The final parameters are subject to the product manual.