The K Series is the flagship of Powersoft's technologies, ranking in the "Top Class" amplification of the global pro audio market. Offering various power ratings in 6 models ranging from 2 x 2400 W/ch @ 4 ? to 2 x 9000 W/ch @ 2 ?, still maintaining the 1 unit size, the K series represents a new milestone of switch mode amplification providing incredible power with the lowest weight and highest efficiency.
Its sonic performances set a new target for professional audio market. By using the Step-Up procedure it is now possible to increase the output power without having to change amplifier. Read more on the K Series Step-Up procedure here.
The K20 impresses with up to 18,000 W in a single rack space, making it probably the most powerful amplifier at its size, and definitely the most powerful model within the K Series, the most advanced line of power amplifiers from Powersoft.
Ideal for subwoofers requiring relatively high continuous power and ample headroom, the K20 is the unique result of smart design, attention to sound quality, and extremely high efficiency with reliability, portability, and adaptability in mind.
In use worldwide by leading touring and event sound companies, K Series is preferred among the top ranking system designers, sound engineers, and system techs on the road for making their lives easier, giving them reliable premier-grade power and headroom in the smallest possible package size.
Fully digitally controlled and with a serial PC communication port as standard, the K20 is also available with KDSP board and KAESOP Ethernet/AES3 interface: the K20 DSP+AESOP amounts to a fully integrated, highly sophisticated yet easy to use power source including state-of-the-art sound shaping and system management capabilities, remotely controllable via Powersoft's Armonía Pro Audio Suite? (Interface available for MediaMatrix, Crestron, AMX, Q-SYS control and monitoring systems)
Features
Power supply
Protections
Fully protected circuit design with:
General
Settings
Monitoring
Digital Signal Processing*
Remote management*
* = DSP+AESOP version
Number of channels | 2 | ||||||||||||||||||||||||||||
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Output power | Single channel mode | Bridge mode | |||||||||||||||||||||||||||
2 Ohm |
4 Ohm |
8 Ohm |
4 Ohm |
8 Ohm |
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9000 W | 5200 W | 2700 W | 18000W | 10400W | |||||||||||||||||||||||||
Max output voltage / current | 225 Vpeak / 125 Apeak | 450 Vpeak | |||||||||||||||||||||||||||
AC Main Power | |||||||||||||||||||||||||||||
Power supply | Universal, regulated switch mode with PFC (Power Factor Correction) | ||||||||||||||||||||||||||||
Nominal power requirement | 100-240 V ±10%, 50-60 Hz | ||||||||||||||||||||||||||||
Operating voltage | 90 V - 264 V | ||||||||||||||||||||||||||||
Power consuption** | 115 V | 230 V | |||||||||||||||||||||||||||
Idle | 91 W | 1.3 A | 88 W | 1.17 A | |||||||||||||||||||||||||
1/8 of max output power @ 4 Ohm |
1650 W | 15.8 A | 1625 W | 7.9 A | |||||||||||||||||||||||||
1/4 of max output power @ 4 Ohm |
3250 W | 29.3 A | 3250 W | 14.7 A | |||||||||||||||||||||||||
Thermal | |||||||||||||||||||||||||||||
Operating temperature range | 0° - 45° C - 32° - 113° F | ||||||||||||||||||||||||||||
Thermal dissipation** | 115 V | 230 V | |||||||||||||||||||||||||||
Idle | 682 BTU/h | 171.9 kcal/h | 682 BTU/h | 171.9 kcal/h | |||||||||||||||||||||||||
1/8 of max output power @ 4 Ohm |
1590 BTU/h | 400.7 kcal/h | 1590 BTU/h | 400.7 kcal/h | |||||||||||||||||||||||||
1/4 of max output power @ 4 Ohm |
2498 BTU/h | 629.5 kcal/h | 2498 BTU/h | 629.5 kcal/h | |||||||||||||||||||||||||
AUDIO | |||||||||||||||||||||||||||||
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Frequency response | 20 Hz - 20 kHz (±0.5 dB) @ 1 W, 8 ? | ||||||||||||||||||||||||||||
S/N ratio | > 110 dB (20 Hz - 20 kHz, A weighted) | ||||||||||||||||||||||||||||
Crosstalk separation | > 66 dB @ 1kHz | ||||||||||||||||||||||||||||
THD+N | < 0.5% from 1 W to full power (typically < 0.05%) | ||||||||||||||||||||||||||||
IMD | < 0.5% from 1 W to full power (typically | ||||||||||||||||||||||||||||
Input impedance | 10 k? balanced | ||||||||||||||||||||||||||||
Slew rate | 50 V/?s @ 8?, input filter bypassed | ||||||||||||||||||||||||||||
Damping factor | > 5000 @ 20-200 Hz | ||||||||||||||||||||||||||||
DSP | |||||||||||||||||||||||||||||
DSP architecture | Analog Devices SHARC® DSP | ||||||||||||||||||||||||||||
AD Converter | Dual 24 bit 96 kHz Tandem® architecture with 127 dBA of dynamic range and THD | ||||||||||||||||||||||||||||
DA Converter | Dual 24 bit 96 kHz Tandem® architecture with 122 dBA of dynamic range and THD | ||||||||||||||||||||||||||||
Internal precision | 40 bit floating point | ||||||||||||||||||||||||||||
Firmware | Network upgradable firmware | ||||||||||||||||||||||||||||
Memory/presets | 8 MB (RAM) plus 2 MB flash for presets / 50 stored locally + 150 stored on Smart Card | ||||||||||||||||||||||||||||
Latency | 6.0 ms fixed latency architecture | ||||||||||||||||||||||||||||
Input equalizer | Three layers (PEQ, raised cosine, shelving), 32 filters each + group filters, up to 256 filters total | ||||||||||||||||||||||||||||
Output equalizer | 16 fully parametric filters per channel, IIR: peaking, hi/lo-shelving, hi/lo-pass, band-pass, band-stop, all-pass. Custom FIR up to 384 taps @ 48 or 96 kHz | ||||||||||||||||||||||||||||
Crossover | Butterworth, Linkwitz-Riley, Bessel: 6 dB/oct to 48 dB/oct (IIR), linear phase (FIR), hybrid (FIR-IIR) | ||||||||||||||||||||||||||||
Delay | up to 4 s on input section; up to 32 ms per output, sample-by-sample stepping | ||||||||||||||||||||||||||||
Limiters | Power limiter, TruePower?, RMS voltage, RMS current + Peak limiter | ||||||||||||||||||||||||||||
Damping control | Active DampingControl? | ||||||||||||||||||||||||||||
Front panel | |||||||||||||||||||||||||||||
Indicators and Controllers | 2 x LED bar - Signal level and over-temperature protection 4 x Push-button - Setting operating parameters 1 x Display - Settings and monitoring 1 x Power switch - |
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Connectors | |||||||||||||||||||||||||||||
AC main | 1 x AMP CPC 45A connector - 45 A max (region-specific power cord provided) |
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Audio signal input | 2 x Combo Jack/XLR-F - Signal input 1 x Analog/Digital input - Switchable Analog line/AES3 digital input on channel 2 |
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Loudspeakers | 2 x speakON - Neutrik NL4MD |
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Network/data | 2 x Rj45 socket - Ethernet + AESOP connection (DSP+AESOP version only) 2 x Rj45 socket - Ethernet + AESOP connection (DSP+AESOP version only) 1 x Rj45 socket - RS485 data connection (non-DSP version) |
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Rear panel | |||||||||||||||||||||||||||||
Indicators and Controllers | 1 x Push-button - Link channel pair 1 x Push-button - Toggle ANALOG input/AES3 input on selected connector |
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Construction | |||||||||||||||||||||||||||||
Dimensions (L x H x W) | 483 mm x 44.45 mm x 475 mm (19.0 in x 1.8 in x 18.7 in) | ||||||||||||||||||||||||||||
Weight | 12 kg (26.5 lb) |