POWERSOFT PS-K2

2-Channel Power Amplifier for High Performance Touring

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 Powersoft?s most advanced line. 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 either or both KDSP board and KAESOP Ethernet/AES3 interface. Fully equipped with both options, 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? software.

Interface available for MediaMatrix, Crestron and AMX control and monitoring systems.



Key applications:

Small to Medium Scale Touring FOH Systems
Stage Monitoring
Fullrange Loudspeakers
for

Concert Halls
Live Clubs
Corporate Events

GENERAL




Number of channels
2
Output power 2 ?
4 ?
8 ?
4 ? Bridged 8 ? Bridged
EIAJ test, 1 kHz, 1% THD 2 x 2,400 W 2 x 1,950 W 2 x 1,000
1 x 4,800 W 1 x 3,900 W
Max. output voltage 140 V(peak)
Max. output current 102 A(peak)

AC MAINS POWER




Power supply Universal, regulated switch mode with PFC (Power Factor Correction)
Operating voltage 100-240 V ±10%, 50/60 Hz
Power factor cos (?) >0.95 @ >500 W
Consumption / current draw
@ 230 V @ 115 V
Idle 112 W 0.57 A 1.14 A
1/8 of max. output power @ 4 ?* 609 W
3.1 A 6.3 A
1/4 of max. output power @ 4 ?* 1,219 W
5.7 A 11.4 A

THERMAL




Environmental operating temperature 0-45° C / 32-113° F
Thermal dissipation Fan, continuously variable speed, temperature controlled, front to rear airflow
Idle 96 kcal/hr 382 BTU/hr
1/8 of max. output power @ 4 ?* 182 kcal/hr 722 BTU/hr
1/4 of max. output power @ 4 ?* 268 kcal/hr 1,062 BTU/hr


AUDIO




Gain (selectable via user menu)
26 dB 29 dB 32 dB 35 dB
Input sensitivity @ 8 ? 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
Input impedance 10 k? balanced



Frequency response 20 Hz - 20 kHz (1 W @ 8 ?, ±0.5 dB)
THD+N / SMPTE IMD / DIM100 IMD S/N ratio >106 dBA (20 Hz - 20 kHz, A weighted)
Crosstalk separation >70 dB @ 1 kHz
Slew rate 50 V/µs @ 8 ?. input filter bypassed
Damping factor >5000 @ 20 - 200 Hz

FRONT PANEL
Indicators 7 meter LEDs: 5 x green, 1 x yellow, 1 x red, top yellow and red show alarm with protect description on LCD panel
Controls 4 pushbuttons, function depending on user menu
Maintenance SmartCard reader/writer for firmware updates and preset storage.
Easily accessible dust filter foam behind two steel covers


REAR PANEL
Audio signal input connectors Analog: 2 x balanced Neutrik® XLR female; AES3: use channel 2 XLR
Audio signal output connectors Analog: 2 x balanced Neutrik® XLR male
Loudspeaker output connectors 2 x Neutrik® Speakon NL4MD
Network data port RS485 1 x RJ45 with 2 recessed rotary encoders for ID selection
Aux voltage
1 x 2-pin Phoenix P. 3.81mm
AC mains IEC20A with IEC20A Schuko for EU, IEC20A/American 15A pin plug
Controls 1 x link switch, linking analog inputs 1 and 2
AES3/analog input switch

CONSTRUCTION
Dimensions W 483 mm / 19", H 44.5 mm / 1U, D 380 mm / 15"
Weight 8kg / 17.7 lbs
Chassis 1 mm / 0.04? steel chassis and removable dust cover
3 mm / 0.12? steel front panel, screw hole protection, side reinforcement & rear support

DSP SPECIFICATIONS (optional)
A/D converter
Dual 24bit 96 kHz Tandem® architecture with 127 dBA of dynamic range and THD D/A converter Dual 24bit 96 kHz Tandem® architecture with 122 dBA of dynamic range and THD Memory 8 MB (RAM) plus 2 MB (flash for presets)
Presets 50 stored locally + 150 stored on a smartcard
Digital audio input
AES3 (glitchless fallback to analog audio selectable)
Delay for time alignment Up to 4 s on the input section, up to 32 ms per output, sample-by-sample stepping
Crossover filters Butterworth, Linkwitz-Riley, Bessel, Arbitrary Asymmetric, 6dB/oct to 48dB/oct (IIR), linear phase (FIR), hybrid (FIR+IIR)
Output equalizer 16 fully parametric filters per channel, IIR: peaking, hi/lo shelving, hi/lo pass eq, band pass, band stop, all pass. Custom FIR up to 384 taps @ 48 or 96 kHz
Input equalizer
Three layers (PEQ, raised cosine, shelving), 32 filters each + group filters, up to 256 filters per channel
Cable compensation network
Up to 2 ? negative/positive wire compensation (Active DampingControl?)
Limiter Power limiter (TruePower?, RMS voltage, RMS current) + Peak Limiter

* = With pink noise signal

Powersoft reserves the right to change specifications without notice.

Key benefits/features:

Weight and space saving: unequaled, extremely efficient switch mode PSU and Class D design in only one rack space (1U) and 12kg/26.5lbs

Power saving: more amp output power from the AC power distro thanks to >90% efficiency, resulting in more overall power from less rack space1)

Fewer amplifiers for more speakers: designed for, stable and sounding consistently good with 2? loads

Outstanding sonic quality per design, including patented output filters

Highly integrated: internal state-of-the-art DSP optional

Versatile: large number of amp/system/venue parameters can be configured, locked, and monitored

Communicative: serial PC interface on board; Ethernet interface including AES3 over Cat-5e optional (KAESOP) for complete remote monitoring and control

Grows with you and your system requirements: upgradable to the next bigger model by simply purchasing Step-up SmartCards

All features:

Compact size and Light weight - all models only 1 RU and 12 kg (26 pounds) for easier racking and shipping

Powersoft legendary universal switch mode power supply up to 300VAC tolerant , compact, high performance

Power Factor Correction (PFC), reducing AC mains current draw and increasing voltage operating range (universal power supply)

Detachable AC mains cord

Low Inrush Limiting reduces AC inrush current, removing the need for expensive power sequencers

Fixed frequency switch mode output stage for highest grade audio accuracy

Patented output filter with ripple cancellation network

Front panel LCD interactive display and LED level meters

Lockable user menu for setting max output voltage, max mains current draw, digital gain/attenuation control, defeatable gate selection per channel, limiter and real time

Gain/sensitivity user selection capability (Digital gain attenuator)

Built-in defeatable Clip limiters for each channel

Monitoring of: load impedance, AC mains voltage and current, output voltage, internal temperature

Downloadable log file of all functional fault events with time related trace

Hardware monitor available for fast local diagnostics

Built-in Remote Control (RS 485 interface) for full diagnostic, operational setting and system monitoring, Armonía compatible

Temperature controlled continuous variable speed fan, front to rear airflow

Smart card reader for preset load/save, firmware upgrades and step-up power to K8/K10 (or K3)

Power on/off muting: for 4s at power on, and upon power off amplifiers outputs are muted

Neutrik® XLR/1/4" Combo balanced input (link out on K2/K3) and Speakon® output connectors

Fully protected circuitry design including DC, infrasonic, high frequency, thermal overload and short circuit

Comprehensive protection circuitry:

DC protection: protects against infrasonic signals

VHF protection: protects the loudspeakers against strong very high frequency non-musical signals above the audible range

Thermal protection: prevents the amplifier from being overheated. The protection indicators on the front panel are switched on, as a warning, before the protection process is initiated

AC protection: shuts down the power supply if the line voltage is outside the operating voltage

Clip limiter: prevents severely clipped waveforms from reaching the loudspeakers, whilst maintaining full peak power

Control and monitoring* via Armonía Pro Audio Suite?

Interface available* for MediaMatrix, Crestron and AMX control and monitoring systems

Full four years warranty

*= DSP+AESOP, or AESOP versions only