ULTRACOUSTIC
ACX1800
180-Watt 2-Channel Stereo Acoustic Instrument Amplifier with
Dual FX and FBQ Feedback Detection
ACX900
90-Watt 2-Channel Stereo Acoustic Instrument Amplifier with
Dual FX and FBQ Feedback Detection
ACX450
45-Watt 2-Channel Acoustic Instrument Amplifier with
Dual FX and FBQ Feedback Detection
2 ULTRACOUSTIC ACX1800/ACX900/ACX450 3
¼" TS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
MUSIC Group
MIDAS KLARK TEKNIK LAB GRUPPEN
LAKE TANNOY TURBOSOUND TC ELECTRONIC
TC HELICON BEHRINGER BUGERA
MUSIC Group IP Ltd.
© MUSIC Group IP Ltd. 2017
MUSIC Group
music-group.com/warranty
4 ULTRACOUSTIC ACX1800/ACX900/ACX450 5
ULTRACOUSTIC
ULTRACOUSTIC
24
FBQ
ULTRACOUSTIC
ULTRACOUSTIC
1.1
1.1.1
ULTRACOUSTIC
1.1.2
3
2
180°
120 V
IEC
2.
2.1
INSTR(UMENT)
ULTRACOUSTIC
6,3 mm
6,3mm
PHASE 180°
GAIN
TUNER ACX450
TUNER
BTR2000 TU100
TUNER
CLIP LED
GAIN CLIP LED
CLIP LED
FBQ EQUALIZER
0
12 dB
FBQ FBQ FBQ
LED
FBQ
MIC /
XLR
/ LINE
6,3 mm
COMPRESSOR
ACX1800 4.3
IN/OUT
ACX1800
FX SELECT
16 1
4.2 4.1
PARAMETER
ACX1800
4.1
IN/OUT
ACX450
LED
FX LEVEL
MASTER ACX1800
PHASE 180°
ACX1800
ULTRACOUSTIC CD
CD LEVEL
CD
ACX1800
ACX900 ACX450
2.2
MUTE ACX1800 CD
POWER ULTRACOUSTIC
POWER
POWER
$&;
$&;
$&;
2.1:
6 ULTRACOUSTIC ACX1800/ACX900/ACX450 7
2.2
$&;
$&;
$&;
2.2:
LINE XLR
ULTRACOUSTIC
ACX1800 ACX900
GND LIFT
TUNER
FOOT SW(ITCH)
IN/OUT
CD IN RCA
CD MD
+ MIC INSERT:
SEND
ULTRACOUSTIC RETURN
+ INST(RUMENT) INSERT
1 SEND
RETURN
INSERT SEND
RETURN
2.3: IEC
IEC
/
230 V 120 V
2
120 V
3.
3.1 ACX450
3.1: ACX450
1
2
FS112
CD
CD MD
3.2
ACX900 ACX1800
3.2: ACX900 ACX1800
ACX900 ACX1800
:
CD
3.1
INSERT SEND
INSERT RETURN
19"
MIC INSERT SEND
INSTRUMENT INSERT SEND
CD INPUT
CD LEVEL
100%
PA
DI DI
ULTRACOUSTIC DI
LINE
2
XLR
8 ULTRACOUSTIC ACX1800/ACX900/ACX450 9
4.
ULTRACOUSTIC FBQ
ACX1800 4
4.1 FBQ
FBQ
0
FBQ FBQ
FBQ LED
LED
LED
4.2
ULTRACOUSTIC
4
16
IN/OUT
FX SELECT
4.1:
FX LEVEL
PARAMETER
ACX1800
PARAMETER
Decay
1 CHAMBER
2 ROOM:
3 HALL:
4 CONCERT
Depth
Speed
5 CHORUS
6 FLANGER:
7 PHASER:
8 TREMOLO:
ACX1800
9 CHORUS/DELAY 400
10 FLANGER/DELAY 400
11 CHORUS/DELAY 300
12 FLANGER/DELAY 300
13 DELAY 80
14 DELAY 300
15 DELAY 400
16 DELAY: 500
4.3 ACX1800
ON
COMPRESSOR
ON
GAIN
COMPRESSOR
5.
5.1
BEHRINGER ULTRACOUSTIC
LINE
LINE OUT
XLR
CD RCA
5.1: XLR
5.2: 6,3 mm
5.3: 6,3 mm
10 ULTRACOUSTIC ACX1800/ACX900/ACX450 11
1.
230 V 120 V
2
2. MUSIC Group
behringer.com
Support
MUSICGroup
behringer. com Support
OnlineSupport
behringer.com
3.
ACX1800 ACX900 ACX450
Audio Inputs
INSTRUMENT IN ¼ " TS unbalanced
Input Impedance 10 MOhm
MIC IN XLR balanced
Input Impedance 4 kOhm
LINE IN ¼ " TRS balanced
Input Impedance 40 kOhm
INST INSERT RETURN ¼ " TS unbalanced ¼ " TS unbalanced —
Input Impedance 220 kOhm 220 kOhm —
MIC INSERT RETURN ¼ " TS unbalanced ¼ " TS unbalanced —
Input Impedance 220 kOhm 220 kOhm —
CD Input RCA
Input Impedance RCA
Audio Outputs
LINE OUT XLR balanced XLR balanced —
Output Impedance 4.3 kOhm 4.3 kOhm —
Max. output level >24 dBu >24 dBu —
INST INSERT SEND ¼ " TS unbalanced ¼ " TS unbalanced —
Output Impedance 100 Ohm 100 Ohm —
Max. output level >18 dBu >18 dBu —
MIC INSERT SEND ¼ " TS unbalanced ¼ " TS unbalanced —
Output Impedance 100 Ohm 100 Ohm —
Max. output level >18 dBu >18 dBu —
TUNER OUT ¼ " TS unbalanced ¼ " TS unbalanced —
Output impedance 33 kOhm 33 kOhm —
Max. output level >6 dBu >6 dBu —
System Speci cations
Power rating 2 x 90 / 2 x 4 Ω 2 x 45 / 2 x 4 Ω 1 x 45 / 2 x 4 Ω
Digital Processing
Converters 24-bit sigma-delta, 64/128-times oversampling
Sampling rate 40 kHz
Loudspeakers
Type 2 x 8" 2 x 8" 1 x 8"
Model BUGERA dual cone speakers
Impedance 4 Ohm
Power handling 60 W 60 W 40 W
Power Supply
Mains Voltage
USA/Canada 120 V~, 60 Hz
Europe/U.K./Australia 230 V~, 50 Hz
Japan 100 V~, 50 - 60 Hz
China/Korea 220 V~, 50 Hz
General Export model 120/230 V~, 50 - 60 Hz
Power consumption max. 265 W max. 135 W max. 90 W
Fuses 100 - 120 V~ T 6.3 A H 250 V T 3.15 A H 250 V T 2.5 A H 250 V
Fuses 200 - 240 V~ T 3.15 A H 250 V T 1.25 A H 250 V T 1.25 A H 250 V
Mains connection Standard IEC receptacle
Dimensions/Weight
Dimensions (H x W x D)
232 x 423 x 526 mm
(19.1 x 16.6 x 20.7")
242 x 427 x 526 mm
(19.5 x 16.8 x 20.7")
212 x 413 x 455 mm
(8.3 x 16.2 x 17.9")
Weight 19.5 kg (42.9 lbs) 17.6 kg (38.8 lbs) 14.3 kg (31.5 lbs)
Dedicate Your Life to MUSIC
/