Manual-6
FRONT PANEL: MONO 4-WAY AND 5-WAY CONFIGURATION
Observe the labels screened
below
the controls for Mono operation.
햲
MASTER LEVEL control:
Sets the overall Level of the entire unit in Mono mode, without changing relative settings of
the individual Sub/Low/Mid/High Outputs. Unity gain for all Level controls is “7”.
햳
SUBWOOFER LEVEL control:
Sets the Level of signal going to the Sub Output. See page Manual-15.
햴
SUBWOOFER MUTE switch:
Removes all signal from the Sub Output when pressed to the
in
position. This eases the
system tune-up procedure, as described on pages Manual-11-16.
햵
SUBWOOFER DELAY control:
In Subwoofer applications this control has virtually no effect and will normally be set to
MIN (minimum). Refer to page Manual-10.
햶
SUB / LOW crossover frequency selector:
This 41-detent selector sets the crossover frequency between the Subwoofer
and Low Outputs. Refer to page Manual-10 to determine the proper setting for your system.
햷
LOW LEVEL control:
Sets the Level going to the Low frequency Output.
햸
LOW MUTE switch:
Removes all signal from the Low Output when pressed
in
.
햹
LOW DELAY control:
Adds from 0 to 2 ms of time Delay to the Low Output only. Refer to page Manual-10 for align-
ment procedure.
햺
LOW / MID crossover frequency selector:
Sets the crossover frequency between the Low and Mid frequency Outputs.
햻
MID LEVEL control:
Sets the Level of signal going to the Mid Output only.
햽
MID MUTE switch:
Removes all signal from the Mid Output when pressed
in
.
햾
MID DELAY control:
Adds from 0 to 2 ms of time Delay to the Mid frequency Output only.
햿
MID / HIGH-MID crossover frequency selector:
Sets the crossover frequency between the Mid and High-Mid Outputs.
* NOTE: Both the CHANNEL 1 HIGH LEVEL control and CHANNEL 2 MASTER LEVEL control are automatically bypassed
when the AC 23B is switched to "MONO" on the back panel. Adjusting these controls has no effect in the Mono mode.
헀
HlGH-MID LEVEL control:
This controls the Level of signal going to the High-Mid Output only in 5-Way Mode.
**NOTE TO 4-WAY MONO USERS: An internal switch (S5) determines 4 or 5-Way mode. Our apologies: We must ship the
units in the 5-Way mode since normal Stereo 3-Way operation demands it: a fact not the least bit obvious, but nevertheless,
a fact it remains. See the
Mono 4-Way Switch Instructions
on the next page. The HIGH-MID LEVEL control, HIGH-MID
MUTE switch, HIGH-MID DELAY control and HIGH-MID / HIGH FREQUENCY control are out of circuit and will have
no effect regardless of their settings in 4-Way Mode.
MONO 4W OR 5W: INACTIVE
MID
MONO MASTER
SUBWOOFER
SUB / LOW
HIGH
LOW
LOW / MID
4W: MID / HIGH
5W: MID / HIGH-MID
4W: INACTIVE
5W: HIGH-MID / HIGH
4W: INACTIVE
5W: HIGH-MID
10
0
2
4
8
6
10
0
2
4
8
6
10
0
2
4
8
6
10
0
2
4
8
6
10
0
2
4
8
6
10
0
2
4
8
6
10
0
2
4
8
6
10
0
2
4
8
6
MAX
MIN
2
4
8
6
MAX
MIN
2
4
8
6
MAX
MIN
2
4
8
6
MAX
MIN
2
4
8
6
100
80
1k
900
850
150
200
240
750
600
400
190
250
7.0k
5.8k
550
475
350
700
2.0k
2.8k
4.5k
1.0k
190
250
7k
5.8k
550
475
350
700
2.0k
2.8k
4.5k
1.0k
100
80
1k
900
850
150
200
240
750
600
400
3W: MID / HIGH
2W: LOW / HIGH
3W: LOW / MID
2W: INACTIVE
2W: INACTIVE
3W: MID / HIGH
2W: LOW / HIGH
3W: LOW / MID
2W: INACTIVE
2W: INACTIVE
2W: LOW
ACTIVE
CROSSOVER
70
70
2W: LOW
LEVEL
LEVEL
MUTE
LEVEL
LEVEL
MUTE
FREQUENCY
DELAY
DELAY
LEVEL
FREQUENCY
FREQUENCY
LEVEL
DELAY
MUTE
FREQUENCY
LEVEL
DELAY
MUTE
LEVEL
AC 23B
CH 2
MASTER
CH 1
MASTER
POWER
FREQUENCY
LOW
MID
LOW
MID
HIGH
HIGH
1
6
2
3
4
5
11 12
13
7
8
9
17
10
18 19
*
14 15 16
Mono 4-Way and 5-Way labels in this row.
