Powersoft K2

Description


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.

Fully digitally controlled and with a serial PC communication port as standard, the K2 is also available with KDSP board and KAESOP Ethernet/AES3 interface: the K2 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 MediaMatrixCrestronAMXcontrolQ-SYS and monitoring systems).

General  
Number of channels 2
   
Output power Single channel mode   Bridge mode
  2 Ω 4 Ω 8 Ω       4 Ω 8 Ω    
  2400 W 1950 W 1000 W       4800W 3900W    
Max output voltage / current 140 Vpeak / 102 Apeak 100 Vpeak 140 Vpeak 280 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 69 W 1.2 A   88 W 1.35 A
1/8 of max output power @ 4 Ω 609 W 6.3 A   609 W 3.1 A
1/4 of max output power @ 4 Ω 1219 W 11.4 A   1219 W 5.7 A
   
Thermal  
Operating temperature range 0° - 45° C - 32° - 113° F
Thermal dissipation** 115 V   230 V
Idle 382 BTU/h 96.3 kcal/h   382 BTU/h 96.3 kcal/h
1/8 of max output power @ 4 Ω 722 BTU/h 181.9 kcal/h   722 BTU/h 181.9 kcal/h
1/4 of max output power @ 4 Ω 1062 BTU/h 267.6 kcal/h   1062 BTU/h 267.6 kcal/h
   
AUDIO  
Gain 26 dB 29 dB 32 dB 35 dB
Input sensitivity 4.48 V 3.17 V 2.47 V 1.59 V
Max input level 27 dBu 24 dBu 21 dBu 18 dBu
Gate -52 dBu -55 dBu -58 dBu -61 dBu
Frequency response 20 Hz - 20 kHz (±0.5 dB) @ 1 W, 8 Ω
S/N ratio > 106 dB (20 Hz - 20 kHz, A weighted)
Crosstalk separation > 70 dB @ 1kHz
THD+N < 0.2% from 1 W to full power (typically < 0.05%)
IMD < 0.2% from 1 W to full power (typically < 0.05%)
Input impedance 10 kΩ balanced
Slew rate 50 V/μs @ 8Ω, 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 or arbitrary asimmetric: 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 - 
Connectors  
AC main 1 x IEC C20 connector - 20 A max (region-specific power cord provided)
Audio signal input 2 x XLR - Signal input
1 x Analog/Digital input - Switchable Analog line/AES3 digital input on channel 2
Auxiliary voltage 1 x 2 pin Phoenix MC 1.5/2-ST-3.81 - External voltage connector (DSP version only)
Audio out (link through) 2 x XLR - Signal output (link through)
Loudspeakers 2 x speakON - Neutrik NL4MD
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)
   
Rear panel  
Indicators and Controllers 1 x Push-button - Link channel pair
1 x Push-button - Toggle ANALOG input/AES3 input on selected connector
   
Construction  
Dimensions (L x H x W) 483 mm x 44.45 mm x 380 mm (19.0 in x 1.8 in x 15.0 in)
Weight 7.4 kg (16.3 lb)