3PHASE-40K Networkable Digital Power Amplifiers

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Main Features

- Worldwide highest output power level and greatest extra headroom
- Three or Single* phase very wide range of AC line operation with APFC
- Easy interfacing to the 3X 400V** distribution without Neutral connection
- Reduced current draw and line cabling cost, saves lots of copper
- No more line-to-line balance problems, moreover the amp helps to keep
the best symmetry betweenphase conductors in 3 Phase operation mode
- Fault-tolerant to power line anomalies, still operational with 2 phases
- Network control over standard ETHERNET, Open Source drivers
- Optional DSP module with 24bit/192KHz HiDefinition sample rate
- Full soft switching implemented with very high power conversion efficiency
- Supercompact size and small weight in rugged 1RU steel case
- Easily readable large format display and accurate output level metering

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User Manual

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Technologies behind the
largest PKN Amplifier

Technical Specifications

Parameter	PKN 3PHASE-40K
Channel number	4 input/ 4 output
Output Power 8 Ohms	4 x 4000W
Output Power 4 Ohms	4 x 7500W
Output Power 2.6 Ohms	4 x 10000W
Bridged Output Power 8 Ohms	2 x 8000W
Bridged Output Power 4 Ohms	2 x 15000W
Bridged Output Power 2.6 Ohms	2 x 20000W
Peak Output Voltage per Channel	256V (181Vrms)
Peak Output Current per Channel	130A
Power Supply	Dual, Two independent High Frequency Resonant Switching with active Power Factor Correction
Typical Power Factor	>0.92 above 2000W
AC Power input in Three Phase mode	3x 400V (25A**) no Neutral connection needed
AC Power input in Single Phase mode	230V (63A**)
Operational AC Voltage range in Three Phase mode	3X 208V- 3X480V 45...65Hz Still operational in case of single phase loss
Operational AC Voltage range in Single Phase mode	90V- 275V** 45...65Hz 400Vac proof in single-phase mode
Maximum AC line current draw in Three Phase mode	3X 32A (Separated AC Power limiter for AB and CD Channels)
Maximum AC line current draw in Single Phase mode	80A
Inrush current limiting	Yes, very soft turn-on
Minimum Operational AC input	65V (Single Phase mode)
AC Overvoltage Proof	1.5 KV in Three Phase mode, 0.75 KV in Single Phase mode
Signal to Noise ratio (with “A-weighed” filter)	112dB
Frequency response (+/- 0,05dB)	20Hz – 30KHz
Frequency response (+/- 3dB	5Hz - 60Khz (High Frequency filter off)
Damping factor (20-100Hz, 8R****)	>12000
Damping factor (1KHz, 8R****)	>6500
THD + IMD (20Hz - 20kHz full power)	0.15% max (typical <0.05%)
Output Slew Rate	100V/us (Input and HF filters bypassed)
Crosstalk (A <-> B), (C <-> D)	>75dB
Crosstalk (AB <-> CD)	>106dB	-
Output protections	CCM (0 Ohm STABLE), Overload, Short circuit, HF, unmatched loads, DC fault, lost connection, Programmable limiters
Input sensitivity (analog inputs)	0.775Vrms or 2Vrms (configurable from the menu)
Input impedance	10K+10K, Balanced
Output connectors	4X NEUTRIK NLT4M*
Input connectors	4X NEUTRIK XLR
Networking	Standard Ethernet
Built-in DSP	Optional
Size	1RU, 455mm depth
Limiter	Output Voltage (1V/step), Sustained Output Power Limiter (10W/step)
Latency from the analog inputs	1 ms
Weight	16 Kgs
Operational temperature range	0C - +45C
Built-in DSP	Optional
Cooling	Forced air cooling with hidden high-performance FANS , Front to rear airflow

** There is a possibility of multiple line-current limiting methods from the menu booth in three and single phase mode
*** Maximum performance is around 3X400V or 230V operation, bellow 208V the sustained output power performance drops, please see the deration graphs(1).
**** Measured directly on the output points Preliminary Specificiations are subject to change without prior notice