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Way, 3-way 4-way crossovers, Tereo, Nspection – Harman-Kardon 223/223XL User Manual

Page 5

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2-Way, 3-Way

4-Way Crossovers

223/223XL - 234/234XL

®

I

NSPECTION

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.

3

S

TEREO

2-W

AY

M

ODE

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

G

AIN

Controls the INPUT level with +/- 12 dB of gain.

[13] & [20]

L

OW

C

UT

Switch for selecting the 40 Hz high pass filter. An LED indicates the
selection.

[2] & [8]

L

OW

/M

ID

*

Selects crossover point between the LOW and HIGH outputs.

[14] & [21]

X

10 LED

Indicates that the LOW/HIGH crossover frequency range is 450 Hz to
9.6 kHz.

[4] & [10]

L

OW

O

UTPUT

Controls the Low frequency output level with a range of -

to +6 dB.

[15] & [22]

P

HASE

I

NVERT

Switch for reversing the polarity on the Low Output. An LED indicates
that the phase is inverted.

[6] & [12]

H

IGH

O

UTPUT

Controls the High frequency output with a range of -

to +6 dB.

[17] & [24]

P

HASE

I

NVERT

Switch for reversing the polarity on the High Output. An LED indicates
that the phase is inverted.

[19]

S

TEREO

LED indicating stereo mode operation.

* although this control is labeled as “L

OW

/M

ID

”, it operates as the crossover frequency control between low and

high frequencies in stereo 2-way operation.

INPUT

INPUT

LOW CUT

LOW CUT

x10

LOW/LOW-MID

LOW/MID

LOW-MID/HIGH-MID

MID/HIGH

LOW OUTPUT

LOW OUTPUT

LOW-MID OUTPUT

MID OUTPUT

HIGH OUTPUT

INPUT

LOW CUT

LOW/MID

HIGH-MID/HIGH

MID/HIGH

LOW OUTPUT

HIGH-MID OUTPUT

HIGH OUTPUT

MID OUTPUT

HIGH OUTPUT

GAIN

dB

-12

-6

+6

0

+12

XOVER FREQ

Hz

45

70

680

350

240

140

960

XOVER FREQ

Hz

450

700

6.8k

3.5k

2.4k

1.4k

9.6k

x10

GAIN

dB

-12

-6

+6

0

+12

XOVER FREQ

Hz

45

70

680

350

240

140

960

XOVER FREQ

Hz

450

700

6.8k

3.5k

2.4k

1.4k

9.6k

MONO

STEREO

40 Hz

40 Hz

-

GAIN

dB

-30

-10

0

+6

-

GAIN

dB

-30

-10

0

+6

-

GAIN

dB

-30

-10

0

+6

-

GAIN

dB

-30

-10

0

+6

-

GAIN

dB

-30

-10

0

+6

-

GAIN

dB

-30

-10

0

+6

INV

INV

INV

INV

INV

INV

CHANNEL ONE

CHANNEL TWO

dbx 234/234XL Front Panel

1 2 3

4 5 6

7 8

9 10

11

12

13 14 15 16 17 18 19 20 21 22 23 24

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.

This manual is related to the following products: