Wharfedale Pro Delta 18BA - Manual (Page 9)

7
SPECIFICATION
Model Name DELTA 12A DELTA 15A DELTA 15BA DELTA 18BA
System Type
Active 12” 2-way Bi-
Amplified system
Active 15” 2-way Bi-
Amplified system
Active 15” Subwoofer
Amplified system
Active 18” Subwoofer
Amplified system
Frequency Response (+/-3dB) 60-20kHz 50-20kHz 42-200Hz 38-200Hz
Low Frequency Transducer
Size (mm / inches)
332mm / 12” 404mm / 15” 404mm / 15” 470mm / 18”
Coil Size (mm / inches) 75.0mm / 3.0” 75.0mm / 3.0” 101.6mm / 4.0” 101.6mm / 4.0”
Impedance 4 Ω 4 Ω 8 Ω 8 Ω
High Frequency Transducer
Type
Compression Driver Compression Driver
Coil Size (mm / inches) 51mm / 2” 51mm / 2”
Exit Size (mm / inches) 35.6mm / 1.4” 35.6mm / 1.4”
Diaphragm Material Titanium Titanium
Impedance 8 Ω 8 Ω
Maximum SPL(peak)@1m 130dB 131dB 130dB 132dB
High Frequency Coverage (H x V) 90° x 45° 90° x 45°
Amplifiers
Low-Frequency Power Amplifier (Class
D)
650W 650W 900W 1000W
High- Frequency Power Amplifier
(Class D)
100W 100W / /
Electronic Crossover
24dB/octave Linkwit-
Riley
24dB/octave Linkwit-
Riley
24dB/octave Linkwit-
Riley
24dB/octave Linkwit-
Riley
Crossover Frequency 2.7kHz 2.7kHz
Adjustable 80Hz to
200Hz
Adjustable 80Hz to
200Hz
Controls
Equalization:
High(±10dB) 10kHz
Shelving High(±10dB) 10kHz
Shelving
/ /
Low(±10dB) 100Hz
Shelving
Low(±10dB) 100Hz
Shelving
/ /
Monitor Filter
Subsonic Filter
30Hz, Second-order
filter
30Hz, Second-order
filter
Amplifier Protection
Power On Protection
Power switch on/of
mute
Power switch on/of
mute
Power switch on/of
mute
Power switch on/of
mute
Thermal Protection
Amplifer shutdown,
auto reset
Amplifer shutdown,
auto reset
Amplifer shutdown,
auto reset
Amplifer shutdown,
auto reset
Low Line Voltage Shut Down
80% Nominal line
voltage
80% Nominal line
voltage
80% Nominal line
voltage
80% Nominal line
voltage
Driver Protection
Indepndent LF and HF
limiters
Indepndent LF and HF
limiters
Yes Yes
DC Protection Yes Yes Yes Yes
Short Protection Yes Yes Yes Yes