End of Life Products – K2

2-Channel High Performance Power Amplifier

Powersoft 2ch
PFc
ArmoniaPlus
GreenPower
MyPowersoft

Overview

With up to 4,800 W the K2 is the “smallest” amplifier in K Series. Built on the same technologies and features as present in the bigger models, it makes a full-fledged member of the amplifier line that changed the face and direction of the professional audio amplification market.

Only 8kg/17.6lbs light, the K2 is the ideal companion for where space, weight, and uncompromised sound quality matter. Per Step-up card a K2 can be upgraded to become a K3 – more power without replacing the entire amplifier. Click here to go to the K Series Step-Up page.

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.

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 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 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 continous variable speed fan, front to back airflow
  • Temperature forecast with LCD traced historical behaviour

General

  • Fixed frequency switchmode output stage for high grade sound accuracy
  • Compact size – all models only 1 RU for reduced rack cost and space
  • Light weight – for easier racking and shipping: 12 kg (26.5 lbs) according to configuration
  • Combo XLR/6.3mm jack Neutrik input connectors with link capability
  • AES3 digital input*

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 channel2400 W @ 2 Ω1950 W @ 4 Ω1000 W @ 8 Ω
Bridge mode4800 W @ 4 Ω3900 W @ 8 Ω
Max output voltage / current
Single channel mode140 Vpeak / 102 Apeak
Bridge mode280 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: 69 W – 1.2 A230 V: 88 W – 1.35 A
1/8 of max output power @ 4 Ω115 V: 609 W – 6.3 A A230 V: 609 W – 3.1 A
1/4 of max output power @ 4 Ω115 V: 1219 W – 11.4 A230 V: 1219 W – 5.7 A
THERMAL
Operating temperature range0° – 45° C – 32° – 113° F
Thermal dissipation*
Idle115 V: 382 BTU/h – 96.3 kcal/h230 V: 382 BTU/h – 96.3 kcal/h
1/8 of max output power @ 4 Ω115 V:722 BTU/h – 181.9 kcal/h230 V:722 BTU/h – 181.9 kcal/h
1/4 of max output power @ 4 Ω115 V:1062 BTU/h – 267.6 kcal/h230 V:1062 BTU/h – 267.6 kcal/h