Rotel RB-1091 Troubleshooting, Specifications, Front Panel Power Indicator Is, Not Lit, No Sound

RB-1091Mono Power Amplifier 8

Troubleshooting	Specifications
Most difficulties in audio systems are the result of
poor or wrong connections, or improper control	Power Configurations	1 x 500 Watts
settings. If you encounter problems, isolate the	Watts/Channel	500 watts, with 20KHz filter, 8 ohm load,
area of the difficulty, check the control settings,		20-20 kHz, 0.03% THD
determine the cause of the fault and make the	Total Harmonic Distortion (20Hz-20kHz, 8 ohms)
necessary changes. If you are unable to get	Continuous Rated Power	< 0.03%
sound from the RB-1091, refer to the sugges-	One-Half Rated Power	< 0.03%
tions for the following conditions:	One Watt per Channel	< 0.03%
Front Panel Power Indicator Is	Power Output (4 Ohms, 0.09% THD)	1000 watts
	Output Peak Current	40A
Not Lit	Intermodulation Distortion 60 Hz:7 kHz, 4:1	< 0.03%
No main power to the RB-1091. Check AC	Damping Factor (8 ohms)	400
power connections at the amplifier and the	Amp Gain	27.2dB
AC outlet. Check the front panel power switch.	Input Sensitivity/Impedance	2.2 V / 11.1 k ohms
Make sure that it is set to the ON position. If	Frequency Response	10 - 40 KHz (±3dB)
using 12V trigger power-on, make sure that	Signal to Noise Ratio (IHF A)	118 dB
a trigger signal is present at rear panel 12V	Power Requirements
TRIG IN jack.	USA	120 Volts, 60 Hz
No Sound	Europe	230 Volts, 50 Hz
	Power Consumption	300 Watts
If the amp is getting AC power, but is producing		34 Watts - Idling
no sound, check the PROTECTION INDICATOR		3 Watts - Standby
on the front panel. If lit, see below. If not, check	Dimensions (W x H x D)	432 x 92 x 407 mm
all of your connections and control settings on		171/ x 35/ x 161/ in
associated components. Make sure that your		8	8	8
	Panel Height (for rack mounting)	80 mm, 31/		in
input connections and speaker connections			8
	Weight (net)	7.8 kg, 17.2 lb.

match your system configuration.

Protection Indicator Is Lit

The front panel PROTECTION INDICATOR will light when the RB-1091 protection circuits have shut off the amplifier. Typically, this oc- curs only when the amplifier has overheated, when there is faulty speaker wiring, or after a period of extreme use. Turn off the system and wait for the amp to cool. Then push the front panel power switch in and out to reset the protection devices. If the problem is not corrected or reoccurs, there is a problem with the system or the amplifier itself.

All specifications are accurate at the time of printing.

Rotel reserves the right to make improvements without notice.