Arcam Digital Pre -Amplifier Delta 110 User Manual download pdf (Page 7)

Delta 110 digital pre-amplifier

The LED above the selected input will glow green. Do not

attempt to push more than one button at a time.

Adjust the volume as required.

Record function

See page 9 for full details on tape recording and dubbing.

The 'record' button is used to select the source required for

recording. The signal is routed to both tape outputs, which are

compatible with cassette decks, open reel decks, hi-fi stereo VCR's or the

analogue Inputs of DAT recorders.

The 'record' button acts rather like a shift key on a computer

or calculator When it has been depressed, the red LED above the

'record'button will flash for approximately 5 seconds. While the LED is

flashing, any of the 7 function buttons may be selected, to determine

which input is to be recorded (i.e. routed to the tape outputs). The LED

above the selected input will now glow red.

Notes

1. Because the Delta 110 incorporates only one set of digital

to analogue converters (DACs), it is not possible to listen to one of the

digital sources whilst recording the other

2. If you have chosen to record from the same source that

you are listening to, for instance 'tuner', the LED above the 'tuner' input

will simply glow green and no red LEDs will be visible above the input

buttons. If you then select another input to listen to, for instance 'disc',

the LED above the 'tuner' input will now glow red, to indicate that the

tuner is being recorded, and the LED above the 'disc' input will now

''ow green, to indicate that a disc has been selected to listen to.

Phase switch

This is an absolute phase reversal switch which operates on

the co-axiai and optical digital inputs only. Its use is not essential as the

difference in sound between the two positions is normally small.

However, it does give the more enthusiastic listener the opportunity to

achieve optimum results.

Due to the electronic complexity of the recording process,

some CDs are produced with absolute phase inversion and can sound

better when phase reversed. For example, a drum sound which should

be reproduced by the forward motion of your loudspeaker diaphragms,

when phase inverted becomes a signal which moves them backwards.

The phase switch allows you to correct this reversal.

Normal phase reproduction is achieved when the LED above

the phase switch glows green. For absolute phase reversal push the

phase switch once, and the LED with glow red. A second push will cause

the system to revert to the normal position again.

The switch position for a particular recording should be

determined by listening. We suggest that by colour coding your CDs to

match the phase switch LED, you can have easy reference to preferred

switch settings in future.

Note that the phase LED will only be illuminated when one

of the digital inputs is selected, for either listening or recording.

Mono

The Delta 110 is in its normal stereo mode when the LED

above the mono button is not illuminated. Then the left and right input

signals are amplified independently to feed the corresponding main

outputs and stereo headphones jack socket.

When the mono button is depressed, the LED above it glows

green. The left and right signals are then mixed together and the

combined signal is routed to the main outputs and headphone socket.

This is particularly useful when listening to mono records or tapes (as

much of the low frequency out-of-phase rumble can be eliminated) or to

remove excessive hiss from weak FM broadcasts. It is also invaluable for

checking speaker phasing in a stereo hi-fi system.

Depressing the mono button a second time will restore the

system to stereo operation.

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Arcam Digital Pre -Amplifier Delta 110 User Manual Page 7

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