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1. Introduction
DS212 is a cost-effective machine with auto digital feedback destroyer. It can store up to 10 groups of data,
and meet 10 different environmental requirements tone control. It increases signal output from +16dB~48dB.
When feedback occurs, DS212 will analyze through DSP calculation and auto detect & destroy feedback
frequencies. Then stores all result to memory. As DS212 only control & destroy the decay of filter bandwidth
It only eliminates the feedback signals and does not affect the music signal with high definition.
(1) Adjustable Filter frequency bandwidth
While in compressing feedback, filter frequency bandwidth is fluctuating and adjustable from 2 times frequency
range to 1/60. This compresses feedback effectively.
(2) Adjustable compression Threshold
User can adjust the Threshold of DS212 to initial feedback filtering in different excited level from -3dB to
-9dB.
(3) Displays all parameters
LCD screen with back light to display all filtering parameters in AUTO or SINGLE mode entering parametric
EQ manual, e.g.: you are able to read the feedback frequencies, frequency bandwidth & decreasing values. User
Is able to make changes from all this data through LCD screen.
(4) Act as Parametric EQ
There are 12 filter in every channel of DS212. In normal situation, feedback sound will not be more than
3 or 4 frequencies, thus the remainder ones are not been use and can be uterlise as parametric EQ for adju
-sting room acoustic & to compensate lost frequencies.
2.Control Front Panel
DS
212
There are 6 function buttons for control & editing purpose and 1 LCD display screen in the DS212 Front panel.
2.1 Menu display & functions
(1) 2
LED light for left/right input/output indication.
(2)
indicates menu sequence select. Select any sequence from 0~10 by blinking ":" symbol with rotary
"P:"
jog wheel.
Page 4
FEEDBACK EXTERMINATOR
CLIP
L
CLIP
R
Fig 2.1
DS212
Front Panel
CLIP
L
P
1
CH
FILE
3
CLIP
R
Fig 2.2 Menu selection
FILTER SEL
FILTER MODE
PARAM/PUSH
L
EQ-ON
PEQ
SV
CH L
BYPASS
CH R
STORE
POWER
COUPLE
MIDI
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