19.4 K3 DSP+AESOP
Specications
General
Number of channels 2
Output power stereo mode mono-bridged mode
EIAJ Test Standard, 1 kHz, 1% THD 2 Ω/ch 4 Ω/ch 8 Ω/ch 4 Ω 8 Ω
2,800 W 2,600 W 1,400 W 5,600 W 5,200 W
Max output voltage / current 165 V
peak
/ 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 (
φ) >0.95 @ >500 W
Consumption / current draw @ 230 V @ 115 V
Idle 88 W 1.35 A 69 W 1.2 A
I/8 of max output power @ 4 Ω 813 W 4 A 813 W 8 A
I/4 of max output power @ 4 Ω 1,625 W 7.4 A 1,625 W 14.8 A
Thermal
Environmental operating temperature 0° - 45° C / 32° - 113° F
Thermal dissipation Fan, continuously variable speed, temperature controlled, front to rear airow
Idle 382 BTU/h 96 kcal/h
I/8 of max output power @ 4 Ω 836 BTU/h 211 k c a l / h
I/4 of max output power @ 4 Ω 1,390 BTU/h 326 kcal/h
Audio
Gain, selectable 26dB 29dB 32dB 35dB
Input Sensitivity @ 8 Ω 5.30 V 3.75 V 2.66 V 1.88 V
Max input level 27dBu 24dBu 21dBu 18dBu
Gate -52dBu -55dBu -58dBu -61dBu
Frequency response 20 Hz - 20 kHz (1W @ 8 Ω, ±0.5dB)
S/N ratio (amplier section) >106dBA (20 Hz - 20 kHz, A weighted)
Crosstalk separation > 70dB @ 1 kHz
Input Impedance 10 k Ω balanced
THD+N/SMPTE IMD/DIM 100 IMD <0.3% from 1W to full power (typically <0.05%)
Slew rate 50 V/µs @ 8 Ω, input lter bypassed
Damping factor @ 8 Ω >5000 @ 20-200 Hz
DSP
A/D converter
Dual 24bit 96 kHz Tandem® architecture with 127dBA of dynamic range and THD <0.005% (20 Hz - 20 kHz)
D/A converter
Dual 24bit 96 kHz Tandem® architecture with 122dBA of dynamic range and THD <0.003% (20 Hz - 20 kHz)
Memory 8 MB (RAM) plus 2 MB (ash 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 lters Butterworth, Linkwitz-Riley, Bessel, Arbitrary Asymmetric, 6dB/oct to 48dB/oct (IIR), linear phase (FIR), hybrid (FIR+IIR)
Output equalizer 16 fully parametric lters 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 lters each + group lters, up to 256 lters total
Cable compensation network up to 2 Ω negative/positive wire compensation (Active DampingControl
TM
)
Limiters
Power limiter (TruePower™, RMS voltage, RMS current) + Peak Limiter
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; mains switch
Network data port AESOP incl. AES3 2 x RJ45 with activity LEDs
Maintenance
SmartCard reader/writer for rmware updates and preset storage. Dust lter 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 Ethernet 2 x RJ45 with activity LEDs
Aux voltage 1 x 2-pin Phoenix P. 3.81mm
AC mains
EC20A 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 / 1 RU, D 380 mm / 15”
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
Weight
8 kg (17.7 lb)
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