End of Life Products – K20

2-Channel High Performance Power Amplifier

Powersoft 2ch
PFc
ArmoniaPlus
GreenPower
MyPowersoft

Overview

The K20 impresses with up to 18,000 W in single rack space, making it probably the most powerful amplifier at its size.

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 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.

MyPowersoft services are available for this product

Features

Power supply

  • Advanced switch-mode worldwide operating power supply technology for high performance and compact size
  • Power Factor Correction PFC for extremely low mains consumption and extremely wide mains operating a range
  • Low Inrush Limiting reduces AC inrush current, removing the need for expensive power sequencers

Protections

Fully protected circuit design with:

  • Ac protection: shut down power supply when AC mains voltage is outside the operating range
  • Clip limiter: prevents severely clipped waveforms from reaching loudspeakers, while still maintaining full peak power output
  • DC protection: protects against infrasonic signal at the outputs
  • VHF protections: protects the loudspeakers against non-audible, strong, non-musical high-frequency signals
  • Short circuit protection: protects the amplifier from short circuit or other stressful events for the output circuits with automatic protection reset
  • Long term limiter: protects the loudspeaker against steady long term RMS (non-audio) signals reducing maximum output
  • Thermal protection: output stages operating temperature up to 80 °C (176 °F)
  • Temperature controlled continuous variable speed fan, front to back airflow
  • Temperature forecast with LCD traced historical behavior

General

  • Fixed frequency switchmode output stage for high-grade sound accuracy
  • Compact size – all models only 1 RU for reduced rack cost and space
  • Lightweight – for easier racking and shipping: 12 kg (26.5 lbs) according to the configuration
  • Combo XLR/6.3mm jack Neutrik input connectors with link capability

Settings

  • LCD matrix interactive display
  • Comprehensive-user friendly front panel display menu
  • Built-in defeatable clip limiters for each channel
  • Digital gain-attenuator control
  • Defeatable gate selection for each channel
  • User-selectable gain/sensitivity
  • User-selectable maximum output power for each channel
  • User-selectable maximum mains current draw
  • Lockable set-up by user selectable access key code
  • Built-in remote control via the RS-485 interface provides full diagnostic, operational setting, and system monitoring

Monitoring

  • Hardware monitor available for fast local diagnostic
  • Load impedance measurement/display for each channel
  • Output power measurements/display for each channel
  • Mains voltage and current measurements/display
  • Downloadable log file of functional fault events with time-related trace
  • Smart Card settings, parameters, and upgrades functionality

Specifications

General
Output power per channel
Output power per channel9000 W @ 2 Ω5200 W @ 4 Ω2700 W @ 8 Ω
Bridge mode18000 W @ 4 Ω10400 W @ 8 Ω
Max output voltage / current
Single channel mode1225 Vpeak / 125 Apeak
Bridge mode450 Vpeak
AC main power
Power supplyUniversal, regulated switch mode with PFC (Power Factor Correction)
Nominal power requirement100-240 V ±10%, 50-60 Hz
Operating voltage90 V – 264 V
Power consumption / current draw
Idle115 V: 91 W – 1.3 A230 V: 88 W – 1.17 A
1/8 of max output power @ 4 Ω115 V: 1650 W – 15.8 A230 V: 1625 W – 7.9 A
1/4 of max output power @ 4 Ω115 V: 3250 W – 29.3 A230 V: 3250 W – 14.7 A
THERMAL
Operating temperature range0° – 45° C – 32° – 113° F
Thermal dissipation*
Idle115 V: 682 BTU/h – 171.9 kcal/h230 V: 682 BTU/h – 171.9 kcal/h
1/8 of max output power @ 4 Ω115 V: 1590 BTU/h – 400.7 kcal/h230 V: 1590 BTU/h – 400.7 kcal/h
1/4 of max output power @ 4 Ω115 V: 2498 BTU/h – 629.5 kcal/h230 V: 2498 BTU/h – 629.5 kcal/h