Manual Rotel RA-05 (page 9 of 52) (English, German, Dutch, French, Italian, Spanish)

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12 Volt Trigger Outlet \

Some audio components can be turned on

automatically when they receive a 12V turn

on “signal”. The two12V Trigger Outputs of the

RA-05 provide the required signal. Connect

compatible components to the RA-05 with a

conventional 3.5mm miniplug cable. When the

RA-05 is in Standby mode, the trigger signal

is interupted, so the components controlled by

it are turned off.

Protection Indicator

The RA-05 has both thermal and over-current

protection circuitry that protects the ampliﬁer

against damage in the event of extreme or faulty

operating conditions. The protection circuits

are independent of the audio signal and have

no impact on sonic performance. Instead, the

protection circuits monitor the temperature of

the output devices and shut down the ampliﬁer

if temperatures exceed safe limits.

Most likely, you will never see this protection

circuitry in action. However, should a faulty

condition arise, the ampliﬁer will stop playing

and the LED indicator on the front panel will

light up.

If this happens, turn the ampliﬁer off. Let it

cool down for several minutes, and attempt to

identify and correct the problem that caused

the protection circuitry to engage. When you

turn the ampliﬁer back on, the protection circuit

will automatically reset and the indicator LED

should go out.

In most cases, the protection circuitry activates

because of a fault condition such as shorted

speaker wires, or inadequate ventilation lead

ing to an overheating condition. In very rare

cases, highly reactive or extremely low imped

ance speaker loads could cause the protection

circuit to engage.

If the protection circuitry triggers repeatedly

and you are unable to isolate and correct the

faulty condition, contact your authorized Rotel

dealer for assistance in troubleshooting.

Speciﬁcations

Continuous Power Output 40 watts/ch

(20-20 kHz, < 0.03%, 8 ohms)

Total Harmonic Distortion (20Hz-20kHz) < 0.03% at rated power, 1/2 power or 1 watt

Intermodulation Distortion (60 Hz : 7 kHz, 4:1) < 0.03% at rated power, 1/2 power or 1 watt

Frequency Response

Phono Input 20Hz-15kHz, ±0.3dB

Line Level Inputs 10Hz-40kHz, ±1dB

Damping Factor (20-20,000 Hz, 8 ohms) 180

Input Sensitivity / Impedance

Phono Input 2.5mV / 47 kOhms

Line Level Inputs 150 mV / 24 kOhms

Input Overload

Phono Input 180mV

Line Level Inputs 5V

Premp Output / Impedance 1V / 470 Ohms

Tone Controls - Bass / Treble ±6 dB at 100Hz / 10kHz

Signal to Noise Ratio (IHF “A” weighted)

Phono Input 80 dB

Line Level Inputs 100 dB

Power Requirements

USA Version 120 Volts, 60 Hz

European Version 230 Volts, 50 Hz

Power Consumption 220 Watts

Dimensions (W x H x D) 437 x 72 x 342 mm

x 2

x 13

”

Panel Height 60 mm / 2

”

Weight (net) 5.9 kg, 13 lbs.

All specifications are accurate at the time of printing.

Rotel reserves the right to make improvements without notice.

English

Troubleshooting

Most difﬁculties in audio systems are the result

of incorrect connections, or improper control

settings. If you encounter problems, isolate the

area of the difﬁculty, check the control settings,

determine the cause of the fault and make the

necessary changes. If you are unable to get

sound from the RA-05 refer to the suggestions

for the following conditions:

Power Indicator Is Not Lit

The Power Indicator should be lit whenever the

RA-05 is plugged into the wall power outlet

and the Power Switch is pushed in. If it does

not light, test the power outlet with another

electrical device, such as a lamp. Be sure the

power outlet being used is not controlled by

a switch that has been turned off.

Fuse Replacement

If another electrical device works when plugged

into the power outlet, but the Power Indicator

of the RA-05 does not light when plugged into

the same outlet and the Power Switch is pushed

in, it indicates that the internal power fuse may

have blown. If you believe this has happened,

contact your authorized Rotel dealer to get the

fuse replaced.

No Sound

Check the signal source to see if it is function-

ing properly. Make sure the cables from the

signal source to the RA-05 inputs are connected

properly. Be sure the Listening Selector is set

to the proper input. Check the wiring between

the RA-05 and the speakers.

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Rotel RA-05 Manual

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