Rotel RA-1570 Owner's Manual download pdf (Page 7)

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RA‑1570 Stereo Integrated Ampliﬁer

About Rotel

Our story began over 50 years ago. Over the decades, we have received

hundreds of awards for our products and satisﬁed hundreds of thousands

of people who take their entertainment seriously - like you!

Rotel was founded by a family whose passionate interest in music led

them to manufacture high-ﬁdelity components of uncompromising quality.

Through the years, that passion has remained undiminished and the family

goal of providing exceptional value for audiophiles and music lovers,

regardless of their budget, is shared by all Rotel employees.

Rotel’s engineers work as a close team, listening to, and ﬁne tuning, each

new product until it reaches their exacting musical standards. They are

free to choose components from around the world in order to make that

product the best they can. You are likely to ﬁnd capacitors from the United

Kingdom and Germany, semiconductors from Japan or the United States,

while toroidal power transformers are manufactured in Rotel’s own factory.

We all have concerns about our environment. And, as more and more

electronics are produced and later discarded, it is especially important for

a manufacturer to do all it can to engineer products that have a minimum

negative impact on landﬁll sites and water tables.

At Rotel, we are proud to do our part. We have reduced the lead content

in our electronics by using special ROHS solder, while our new Class D

(not digital) ampliﬁers are up to ﬁve times more efﬁcient than our legacy

designs and still deliver power and performance. These products run

cool, give minimum wasted energy, are good for the environment and

give better sound too.

Finally, we have printed this manual on recycled paper stock.

While we understand that these are small ﬁrst steps, they are still important

ones. And we continue to pursue new methods and materials for a cleaner

and greener manufacturing process. All of us at Rotel thank you for buying

this product. We are sure it will bring you many years of enjoyment.

A Word About Watts

This ampliﬁer’s power output is quoted as 120 watts for each channel,

when both channels are operating together at full power. Rotel has chosen

to specify the power output in this way because, in Rotel’s experience,

it gives the truest value of the receiver or ampliﬁer’s power capability.

When comparing speciﬁcations for different products, you should be

aware that power output is often speciﬁed in other ways, so you may

not be comparing like with like. For example, the power output may be

quoted with only one channel operating, giving a higher maximum ﬁgure.

A loudspeaker’s impedance rating indicates the electrical resistance or

load it offers when connected to the ampliﬁer, usually 8 ohms or 4 ohms.

The lower the impedance, the more power the speaker will need. In effect,

a 4 ohm speaker will require twice as much power as an 8 ohm speaker.

However, Rotel amplifiers are designed to work into any speaker

impedance between 8 and 4 ohms, and with all the channels working

up to their full power. Because Rotel designs are optimized for use with

all channels operating together, Rotel is able to specify the true power

output for both channels.

Contents

Important Safety Instructions .......................................2

Figure 1: Controls and Connections 3

Figure 2: RR‑AX92 Remote Control 3

Figure 3: Analog Inputs and Speaker Output Connections 4

Figure 4: Balanced (XLR) Inputs 5

Figure 5: Digital Input and 12 Volt Trigger out Connections 5

Important notes 6

About Rotel .................................................... 7

A Word About Watts .............................................7

Getting Started ................................................. 8

A Few Precautions 8

Placement 8

Cables 8

The RR‑AX92 Remote Control ......................................8

Remote Control Batteries 8

AC Power and Control ............................................8

AC Power Input

Power Switch and Power Indicator

12V Trigger Connection

Input Signal Connections .......................................... 9

Phono Input

and Ground Connection 9

Line Level Inputs

Balanced (XLR) Inputs

= 9

Digital Signal Inputs

...........................................9

Preamp Outputs

.............................................9

Preamp / Power Amp Jumpers

................................9

Speaker Outputs

............................................10

Speaker Selection 10

Speaker Wire Selection 10

Polarity and Phasing 10

Speaker Connection

Phones Output

5

.....................................

Remote Sensor

2

..........................................10

Display

3

................................................10

Front USB Input

6

..........................................10

Bluetooth Connection



.........................................10

Audio Controls .................................................10

VOLUME Control

Balance Control

Tone Control Bypass K 11

BASS and TREBLE Tone Controls

Function Control

PC‑USB Input

q

............................................11

Computer I/O Connector

w

...................................11

Rotel Link

t

..............................................11

EXT REM IN Jack

u

.........................................11

Protection Circuit ...............................................11

Settings Menu .................................................11

Troubleshooting ................................................12

Power Indicator Is Not Illuminated 12

Fuse replacement 12

No Sound 12

Speciﬁcations ..................................................13

1 2 3 4 5 6 7 8 9 10 11 12 ... 75 76

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