ULT18 Active Sound-Reinforcement Subwoofer
ULT18 Active Sound-Reinforcement Subwoofer
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Overview
Designed to complement any full-range PA loudspeaker and a perfect companion for the PreSonus® ULT12 and ULT15, the ULT18 subwoofer delivers a powerful, clear, and accurate low-end punch. With 2,000 watts of Class D power and a direct radiating, ported enclosure, it delivers the detailed low-frequency performance audio pros demand. Its custom 18-inch low-frequency transducer with 4-inch voice coil provides 7 mm of driver travel before over-excursion to push more air and bring more thump. A variable lowpass filter (rare in this class) lets you dial in upper frequency limit. The ULT18 also offers M10 fly points, ground stacking provisions, castor provisions, and a defeatable front-panel LED, making it a great choice for both mobile and install applications.
Overview
Features
- 18-inch custom woofer with 4-inch voice coil with 7 mm driver travel
- 2,000W Class D power (1,000W Program / 500W continuous)
- 2 XLR/¼" combo inputs with direct outputs
- Variable lowpass filter lets you dial in upper frequency limit
- Polarity invert
- Defeatable front-panel LED for low-visibility installs
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Documentation
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Specs
Electronics
Auxiliary Input
N/A
Channels
Two
Inputs
Two - 2 x Line
Line Out
Two - 2 XLR Male (Mix Out, Direct Out)
VoltageRequirements
100-240 VAC, 50-60 Hz
General
Amplifier Type
Class-D
Color
Black
Product Name
ULT18 Active Sound-Reinforcement Subwoofer, Black
Series
ULT
Hardware
Audio Controls
Output Level Low Pass Filter Preset Select Polarity Invert On/Off Mono On/Off Front LED On/Off
Cabinet Material
15mm Eucalyptus Plywood
Grille Material
Powder-Coated Steel
Handle
2 Side
LF Power
2 x 500W Bridged (1000W Total)
LF Transducers
1x18" Ferrite (4" Voice Coil)
Pole Socket
Ground-Stack Provisions
Inputs
Line Inputs Impedance
10 kΩ
Line Inputs Maximum Level
+22 dBu
Measurements
Product Depth
24.5" (62.2 cm)
Product Height
22.5" (57.15 cm)
Product Width
25" (63.5 cm)
Miscellaneous
DSP Features
Presets: Extended LF
Power Cable
IEC
Protections
Amplifier: Over-current, DC, over/under-voltage, over-temperature, high frequency
Transducer: Limiter
Supported Sample Rates
96 kHz
Suspension
M10 Suspension Points
Performance
Amplifier Dynamic Range
119 dB (A-Weighted)
Digital Audio Bit Depth
24 Bit
Peak SPL
135 dB
Total Harmonic Distortion
<0.05% (20 Hz - 20 kHz)
Total Power Output
2000W Peak (1000 RMS)
Speakers
Crossover Frequency
90 Hz
Speaker Type
Powered Subwoofer
Total Impedance
NA