511 Stereo/Dual    511 Mono
Mains    100 – 240 V (50 – 60 Hz)    100 – 240 V (50 – 60 Hz)
Power consumption    < 0.5 W standby
idle 100 W
max 1600 W    < 0.5 W standby
idle 200 W
max 2000 W
Outputs    2 pairs Cu-terminal,
gold plated    2 pairs Cu-terminal,
gold plated
Gain    + 26 dB    + 32 dB
Power output    2 × 150 W @ 8 Ω
2 × 300 W @ 4 Ω
2 × 600 W @ 2 Ω     600 W @ 8 Ω
1200 W @ 4 Ω
2000 W @ 2 Ω
Pulse power    > 2 × 2000 W    > 4500 W
Frequency response (– 3 dB)    0 – 800 kHz    0 – 1.6 MHz
THD + N    < 0.001% at 50 W @ 4 Ω
(20 Hz – 20 kHz)    < 0.001% at 200 W @ 4 Ω
(20 Hz – 20 kHz)
IM distortions    < 0.005 % SMPTE
< 0.0006 CCIR    < 0.005 % SMPTE
< 0.0006 CCIR
Signal-to-noise ratio    108 dB (5 W @ 1 kHz)    108 dB (5 W @ 1 kHz)
Channel separation    > 120 dB @ 1 kHz   
Damping factor    > 10,000    > 5,000
Output current max    45 A (limited)    45 A (limited)
Inputs    1 × balanced (XLR)    1 × balanced (XLR)
Input impedance     2 kΩ balanced (XLR)    2 kΩ balanced (XLR)
Dimensions    442 × 270 × 448 mm (W × H × D)    442 × 270 × 448 mm (W × H × D)
Weight    approx. 30 kg    approx. 30 kg
LINK (remote turn-on)    12 V control signal    12 V control signal