Inspection - dbx 223/223XL Operation Manual

2-Way, 3-Way 223/223XL - 234/234XL
4-Way Crossovers
I
NSPECTION
Note: There are no front panel differences between the 234 and the 234XL. Therefore the
234XL is shown below, representing both the 234 and the 234XL.
1 2
CHANNEL ONE
0 240
140 350
-6 +6
70 680 700
40 Hz
x10
-12 +12 45 960
dB Hz
GAIN XOVER FREQ
INPUT LOW CUT LOW/LOW-MID
INPUT LOW CUT LOW/MID
13 14
S 2-W
TEREO AY
In 2-way stereo mode the controls are marked BELOW the horizontal blue line.
Channel One and Channel Two functions are identical in the stereo mode. Front panel controls not described in
this section are not active in stereo 2-way operation.
[1] & [7] I
NPUT
[13] & [20] L
OW
[2] & [8] L
OW
[14] & [21] 10 LED
X
[4] & [10] L
OW
[15] & [22] P
HASE
[6] & [12] H
IGH
[17] & [24] P
HASE
[19] S
TEREO
* although this control is labeled as "L
high frequencies in stereo 2-way operation.
Before going any further, you should take time to fill out your warranty
registration card and inspect the contents of the shipping carton. Inside
both the 223/223XL and 234/234XL boxes you should find the following:
• either the dbx model 223, 223XL, 234, or the 234XL crossover.
• operation manual (you are reading it!)
• 4 rack screws and washers
• power cord.
The contents of this manual are subject to change at any time without
notice.
dbx 234/234XL Front Panel
3 4 5 6
-10 -10 -10
2.4k
1.4k 3.5k
-30
0 -30 0 -30
6.8k
INV INV
450 9.6k - +6 - +6 -
Hz dB dB dB
XOVER FREQ GAIN GAIN GAIN
LOW-MID/HIGH-MID LOW OUTPUT LOW-MID OUTPUT
MID/HIGH LOW OUTPUT MID OUTPUT HIGH OUTPUT
15 16
M
ODE
G Controls the INPUT level with +/- 12 dB of gain.
AIN
C Switch for selecting the 40 Hz high pass filter. An LED indicates the
UT
selection.
/M * Selects crossover point between the LOW and HIGH outputs.
ID
Indicates that the LOW/HIGH crossover frequency range is 450 Hz to
9.6 kHz.
O Controls the Low frequency output level with a range of -∞ to +6 dB.
UTPUT
I Switch for reversing the polarity on the Low Output. An LED indicates
NVERT
that the phase is inverted.
O Controls the High frequency output with a range of -∞ to +6 dB.
UTPUT
I Switch for reversing the polarity on the High Output. An LED indicates
NVERT
that the phase is inverted.
LED indicating stereo mode operation.
/M ", it operates as the crossover frequency control between low and
OW ID
7 8
CHANNEL TWO
0 240
140 350 1.4k
-6 +6
0 70 680 700
INV 40 Hz
x10
+6 -12 +12 45 960
dB Hz
GAIN XOVER FREQ
MONO
STEREO INPUT LOW CUT LOW/MID
17 18 19 20 21
9 10 11 12
-10 -10 -10
2.4k
3.5k
-30
0 -30 0 -30
6.8k
INV INV
450 9.6k - +6 - +6 -
Hz dB dB dB
XOVER FREQ GAIN GAIN GAIN
HIGH-MID/HIGH HIGH-MID OUTPUT HIGH OUTPUT
MID/HIGH LOW OUTPUT MID OUTPUT HIGH OUTPUT
22 23
®
3
0
INV
+6
24