Muarah
MU-4 TUBE INTEGRATED AMPLIFIER
USER MANUAL
v1.2
7
3)
When you plan not to use remote controller for a longer period of time (over 3 months) remove
batteries from controller.
Important safety instructions!
1)
WARNING!!!
During amplifier operation there is high voltage up to DC 500V existing inside MU-
4 that is dangerous to human’s life. So
on no account should you insert anything into
ventilation slots or into tube’s sockets.
If it happens accidentally do not touch amplifier and
disconnect AC mains plug from AC outlet as quick as possible. Then contact authorized service to
remove foreign body and check amplifier circuits.
2)
Vacuum tubes get hot over 100
o
C (210
o
F) during normal operation. Touching tubes can cause
scorch so locate MU-4 amplifier in place inaccessible for children and pets.
3)
Amplifier can be connected to AC mains power only when all vacuum tubes are installed
4)
On any account should you open MU-4 amplifier bottom cover!
Parameters
Power frequency re0dB/-1,5dB
20Hz-20kHz @ 50W
Frequency re0dB/-3dB
10Hz-70kHz
Nominal Power at THD=2%
2x50W
Signal to noise
>96dBA
Speaker outputs
Headphones output
4 or 8 Ω (separate outputs)
6,3mm jack plug. Headphones 30-300 Ω
Inputs
3 x unbalanced RCA
Tubes
2x6N1P, 2x12BH7, 4xKT88 (or 6550)
Dimensions (width/length/height)
43,5cm/43,5cm/23,5cm
Weight
20kg
Power consumption
< 400VA
