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Rotel RB-1552 MkII vs. Nobsound NS-20G + 3
Bridgeable
No
Yes
RMS output power at 4 ohm
3000 W
RMS output power at 8 ohm
Number of channels
2 ​
2 ​
2 ​
2 ​
2 ​
RMS power, 4 ohm, 20Hz-20kHz (all)
900 W
RMS power, 8 ohm, 20Hz-20kHz (all)
130 W
150 W
440 W
Analogue RCA input (s)
2 ​
2 ​
Analogue RCA output (s)
0 ​
0 ​
Balanced input(s) (analogue)
2 ​
0 ​
2 ​
Balanced output(s) (analogue)
0 ​
0 ​
Euro Block in
0 ​
0 ​
Headphone output
No
No
Speaker connectors (type)
Screw / banana
Screw / banana
Speakon out
0 ​
0 ​
2 ​
Tele plug 6.3mm input
0 ​
0 ​
2 ​
Tele plug 6.3mm output (not headphones)
0 ​
0 ​
Available colours
Black, Silver
Black, Silver
Black
Black
Black
Dimensions (WxHxD)
Depth
340 mm
394 mm
231 mm
Height
144 mm
101 mm
94 mm
Width
431 mm
435 mm
482 mm
Product weight
12.4 kg
11.5 kg
3.5 kg
Features
Volume control / Gain
Amplifier class
AB
AB
D
Cache memory
No
Designed for rack mounting (1U=44mm)
3U
2U
Operational Power Consumption (min-max)
400 W
0 - 500 W
Power consumption (standby)
Separate power connector (mains)
Large power inlet connector (e.g. IEC C13/C17)
Large power inlet connector (e.g. IEC C13/C17)