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Фрагмент инструкции
Its use is not essential as the difference in sound between the two positions is normally small. 7 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. Delta 110 digital pre-amplifier Balance control This is set so that in the normal (' 12 o'clock') position the left and right signals are amplified equally. Adjusting the balance control anti clockwise will then move the stereo image to the left; moving the control clockwise moves the image to the right. For optimum performance the balance control is inside the feedback loop of the Delta 110's line amplifier stage. As the control's range is limited to approximately + 10dB, it is not possible to mute one channel completely. Volume control This adjusts the listening levels of the left and right channels together, through both loudspeakers and headphones. Note that neither the volume or balance controls affect the level of signals sent to the tape outputs. The volume control is motorised for remote control (see p 10). The special clutch used allows it to be adjusted manually without any risk of damaging the drive motor However, take care not to force the volume knob beyond its end stops (at approximately 7 o'clock for minimum volume and 5 o'clock for maximum). Headphones socket The Delta 110 incorporates its own high quality headphone amplifier which is suitable for both high and low impedance headphones using a standard 'A inch (6.35mm) jack plug. It is not generally suitable for use with electrostatic headphones. Note that the Delta 110's two main stereo outputs are automatically muted when the headphone jack is pushed home. Delta 110 digital pre-amplifier Tape recording Tape recording The Delta 110 is extremely versatile when using tape , reorders, allowing you not only to record from one source but also to listen to another source at the same time. Both sets of tape sockets I'tape 1 'and 'tape 2') are identical in function and suitable for use with almost any type of recorder (cassette, hi-fi VCR, reel to reel, DAT, etc.). Connecting up Connect your tape recorder to the 'tape I' sockets, using the in'sockets for playback and the out'for record. A second machine may be connected to the 'tape 2' sockets in the same way, if required. Recording ('tape 1’) Any input signal available on the Delta 110 may be routed to the 'tape I' output sockets by using the 'record' button to select the appropriate input, as described on page 7. Set your tape recorder into its recording mode and this input will be recorded. Selecting the same input to listen to will not affect the signal sent out to the recorder and will now enable you to listen to the input being recorded. If your tape recorder is a 3 head design, this will allow A-B monitoring of the actual recording while it is taking place. Switching between the original source and the 'tape V button during recording will then allow you to make a true 'before and after'(A-B) comparison. Playback ('tape 1') Push the 'tape I' button.and set your tape recorder in its playback mode. 9 Recording and playback ('tape 2') Proceed exactly as above, except use the 'tape 2’ sockets and 'tape 2' button when monitoring or playing b...
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