Driver Protection
DC and Short Protection
Yes
Yes
Clip Limiter
Limiter Indicator
Red LED
Red LED
Red LED
Red LED
Power Indicator
Green LED
Green LED
Green LED
Green LED
Connectors
Input A – type
Switchable Balanced
Mic or Line Level Input
Switchable Balanced
Mic or Line Level Input Balanced
Balanced
Input Sensitivity
Mic:-40dBu Line:0dBu
Mic:-40dBu Line:0dBu
Line:0dBu
Line:0dBu
Maximum Input Level
22dBu
22dBu
22dBu
22dBu
SPECIFICATION
Model Name
DELTA-AX12
DELTA-AX15
DELTA-AX15B
DELTA-AX18B
System Type
Active 12” 2-way Bi-
Amplified
Active 15” 2-way Bi-
Amplified
Active 15” Subwoofer
Active 18” Subwoofer
Frequency Response (+/-3dB)
60Hz - 20kHz
50Hz - 20kHz
42Hz - 200Hz
38Hz - 200Hz
Frequency Range (-10dB)
55Hz - 20kHz
45Hz - 20kHz
Low Frequency Transducer
130dB
131dB
130dB
132dB
Calculated Maximum SPL @1m
Size (mm / inches)
332mm / 12”
404mm / 15”
404mm / 15”
470mm / 18”
Coil Size (mm / inches)
75mm / 3”
75mm / 3”
101.6mm / 4”
101.6mm / 4”
Impedance
4 Ω
4 Ω
8 Ω
8 Ω
High Frequency Transducer
Type
Compression Driver
Compression Driver
-
-
-
-
-
-
-
-
-
-
-
-
Coil Size (mm / inches)
51.2mm / 2”
51.2mm / 2”
Exit Size (mm / inches)
35.6mm / 1.4”
25mm / 1”
Diaphragm Material
Titanium
Titanium
Impedance
8 Ω
8 Ω
Nominal Coverage (H x V)
90° x 45°
90° x 45°
Amplifiers
Low-Frequency Power Amplifier
RMS
650w (Class D)
650w (Class D)
900W (Class D)
1000W (Class D)
High-Frequency Power Amplifier
RMS
100W (Class D)
100W (Class D)
NA
NA
Amplifier Protection
Yes
Yes
Yes
Yes
Power On Protection
Power switch
on/off mute
Power switch
on/off mute
Power switch
on/off mute
Power switch
on/off mute
Amplifier Shut Down.
Auto Reset
Amplifier Shut Down.
Auto Reset
Amplifier Shut Down.
Auto Reset
Amplifier Shut Down.
Auto Reset
Thermal Protection
Low Line Voltage Shut Down
80% Nominal Line
Voltage
80% Nominal Line
Voltage
80% Nominal Line
Voltage
80% Nominal Line
Voltage
Turns on Approx 650w
Output
Turns on Approx 650w
Output
Turns on Approx 900w
Output
Turns on Approx 1000w
Output
Independent LF and
HF Limiters
Independent LF and
HF Limiters
Yes
Yes
Yes
Yes
Input Connector
XLR 1/4
〞
Combo jack
2 x RCA
XLR 1/4
〞
Combo jack
2 x RCA
TRS jack and
Female XLR
TRS jack and
Female XLR
8