DB Drive OKUR A8 1750.1D Manuel de l'utilisateur - Page 7
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The A8 250.4D ampli er is equipped with a variable crossover network that allows you to select the
crossover mode (Highpass — Full Range) and desired crossover point for channels 1 and 2. Channels 3
and 4 allow you to select between a Highpass 12db slope, a 12db Stereo Lowpass / Bandpass slope and a
mono 24db Lowpass / Bandpass slope.
For example if you wish to drive a pair of subwoofers on channels 3 and 4 in the bridged mode, you can
select the LP/BP mono switch setting on the ampli er to lter out the high frequencies with a 24db
slope. You will then need to adjust the Lowpass control to the desired frequency setting (make sure to
have the Highpass control set to 15Hz so that the Bandpass lter does not engage)This will only send
low frequencies to your subwoofers. If you wish to use the Bandpass crossover lter you must set the x-
over switch to LP/BP stereo. Once the LP/BP stereo switch setting is selected you will use both the
Lowpass and Highpass controls to lter out the unwanted low and high frequencies to create the
desired Bandpass lter. (The Bandpass crossover is available on only channels 3 and 4) To use the
Highpass lter select the x -over switch to the HP setting, this will lter out any unwanted low
frequencies with a 12db slope.
Channel 1 & 2
Channel 3 & 4
Highpass Control
Lowpass Control
Channel 3 & 4
Channel 3 & 4
24db/Oct Lowpass/Bandpass
12db/Oct Lowpass/Bandpass
Mono output
Stereo output
The A8 1750.1D is equipped with a state of the art 24db per octave Lowpass crossover network. A
be required.
Lowpass Filter
Bass EQ
Sub Sonic Filter
A8 250.4D
Channel 3 & 4
Highpass Control
Channel 3 & 4 Bandpass Control
when function is activated
A8 1750.1
A8 2000.5
The A8 2000.5 ampli er is equipped with a built - in variable crossover networks allowing you to select
the crossover mode and desired crossover point for each the front, rear and subwoofer channels.
Channels 1and 2 allow you to select either the Highpass crossover which lters out any unwanted low
frequencies from reaching your speakers or Selecting the full s etting turns o any crossover lter
function for channels 1 and 2.
Channels 3 and 4 allow you to select either the Highpass crossover which lters out any unwanted low
frequencies from reaching your speakers or Selecting the full setting turns o any c rossover lter
function for channels 3 and 4.
Channel 5 has a variable Lowpass lter that lters out any unwanted high frequencies from reaching
your subwoofers. The bass boost feature allows you do boost the low end at 45Hz.
Channel 5 Lowpass Control
Channel 1 & 2
Channel 3 & 4
Highpass Control
Highpass Control