Manual Black Decker BDV066 T2 (page 10 of 76) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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RA‑1570 Stereo Integrated Ampliﬁer

Speaker Outputs

See Figure 3

The RA-1570 has two sets of speaker outputs, labeled SPEAKER A and

SPEAKER B. The speaker outputs are controlled by the switch

7

the front panel and the buttons O on the remote control.

Speaker Selection

If only one set of speakers will be used at any given time, the speakers

may have an impedance as low as 4 ohms. If there are times when

both the A and B speakers will be used, all the speakers should have an

impedance of 8 ohms or more. Speaker impedance ratings are less than

precise. In practice, very few loudspeakers will present any problems for

the RA-1570. See your authorized Rotel dealer if you have any questions.

Speaker Wire Selection

Use insulated two-conductor stranded wire to connect the RA-1570 to

the speakers. The size and quality of the wire can have an audible effect

on the performance of the system. Standard speaker wire will work, but

can result in lower output or diminished bass response, particularly over

longer distances. In general, heavier wire will improve the sound. For

best performance, you may want to consider special high-quality speaker

cables.Your authorized Rotel dealer can help in the selection of cables

for your system.

Polarity and Phasing

The polarity – the positive/negative orientation of the connections – for

every speaker and ampliﬁer connection must be consistent so all the

speakers will be in phase. If the polarity of one connection is reversed,

bass output will be very weak and stereo imaging degraded. All wire

is marked so you can identify the two conductors. There may be ribs

or a stripe on the insulation of one conductor. The wire may have clear

insulation with different color conductors (copper and silver). There may

be polarity indications printed on the insulation. Identify the positive and

negative conductors and be consistent with every speaker and ampliﬁer

connection.

Speaker Connections

Turn off all the components in the system before connecting the speakers.

The RA-1570 has color-coded binding post type speaker connectors on

the back panel. These connectors accept bare wire, connector lugs, or

dual banana type connectors. (except in European Community countries

where their use is not permitted)

Route the wire from the RA-1570 to the speakers. Give yourself enough

slack so you can move the components to allow access to the speaker

connectors.

If you are using dual banana plugs, connect them to the wires and then

plug into the backs of the binding posts. The thumbscrews of the binding

posts should be screwed in all the way (clockwise).

If you are using terminal lugs, connect them to the wires. If you are

attaching bare wires directly to the binding posts, separate the wire

conductors and strip the insulation from the end of each conductor. Be

careful not to cut into the wire strands. Unscrew (turn counterclockwise)

the binding post. Place the connector lug or wire around the binding

post shaft. Turn the binding post clockwise to clamp the connector lug

or wire ﬁrmly in place.

NOTE: Be sure there are no loose wire strands that could touch

adjacent wires or connectors.

PHONES Output

The Phones output allows you to connect headphones for private listening.

This output accommodates standard stereo phone (1/8”) plugs. Plugging

in a set of headphones does not cut off the signal to the speakers. Use

the Speaker Selector to turn off the speakers. The settings of the Function

Selector determines which source is heard.

NOTE: Because the sensitivity of speakers and headphones can

vary widely, always reduce the volume level before connecting or

disconnecting headphones.

Remote Sensor

This remote sensor window receives IR commands from the remote control.

Please do not block this sensor.

Display

The front panel display shows the source selected, volume level and

tone settings.

Front USB Input

The front USB input can be connected to a iPod, iPhone, MP3 players or a

Bluetooth dongle (supplied) for wireless streaming. With iPod or iPhones,

simply plug the device into the front USB and select USB function from

the source selector. The iPod, iPhone remains active. Search and play

tracks as usual and the music will be played through the Rotel system.

Bluetooth Connection

Insert the supplied Bluetooth Dongle into the front USB for wireless

streaming via Bluetooth, from your device (i.e. mobile phones) to the

ampliﬁer. From your mobile device, look for “Rotel Bluetooth” and

connect to it. Connection is normally automatic, but if prompted for a

password, please press “0000” then press ENT (if necessary) on the

remote and your device.

Audio Controls

VOLUME Control

Turn the controls clockwise to increase the volume, or counter clockwise

to decrease the volume. From the remote control press the volume + or -

key to turn the volume up or down. Press the MUTE B key to completely

mute the volume.

BALANCE Control

The Balance Control adjusts the left-to-right balance of the sound output.

The factory default is the center position or “0”. To change the balance

from the front panel, press the MENU

9

key to toggle the front display

to BALANCE SETTING mode. Then press the - or + keys on the front panel

to change the value to LEFT or RIGHT. The value can change from L15

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Black Decker BDV066 T2 Manual

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