Drawmer DL231 Spécifications télécharger pdf (Page 7)

DL231 OPERATORS MANUAL

LED BAR DISPLAY is a dual function facility which measures output level (input level if

bypass is selected) or gain-reduction, selectable by the display

switch.

i. The VU meter and threshold controls are calibrated to show 0VU at +4dB

ii. In the gain reduction mode, all the red LED’s are very slightly illuminated at all

times. This is quite normal and does not indicate a fault condition.

EXPANDER

THRESHOLD (+10 to -40 dB) sets the point at which gain reduction takes place.

Signals above threshold pass un-attenuated unless compression

occurs..

RATIO A three position switch selects ratios of 1:2, 1:5 or 1:20 provides

gating characteristics. Gating can be regarded as the opposite of

limiting.

ATTENUATION (Attn) a three position switch sets the maximum attenuation of 10,

20 or 40dB.

FUNCTION selects ‘side-chain listen’, normal (expander in operation) and off

(expander bypassed).

ATTACK time is completely automatic. See introduction.

RELEASE time is semi-automatic, matched to the compressor release and is

adjustable via the compressor release

VISUAL DISPLAY is by means of three LED’s arranged in a horizontal ‘traffic light’

configuration. Green indicates zero expansion, whilst yellow shows

gain reduction of 50%, referring to the attenuated setting and red

100%.

STEREO LINK couples the control circuits of both compressors to prevent image

shifting when treating stereo material on a final mix. The peak

limiters can also be used if desired but they remain independent.

Operational controls should be set the same on both channels when

linked.

SIDE-CHAIN EQ may be applied to expanders and compressors via insert points at

the rear of the unit. Connection are via stereo jack ( Rind - send. Tip

- return)

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Drawmer DL231 Spécifications Page 7