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Presonus ULT18 active subwoofer

Original price was: €1,540.Current price is: €1,140.

QSC KS118 active subwoofer

Original price was: €1,600.Current price is: €1,100.
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QSC KLA-181 Active Line Array Subwoofer

Original price was: €2,950.Current price is: €2,250.

The KLA-181 is the subwoofer from QSC’s KLA series. That series consists of a strong line array system, of which the 18-inch subwoofer takes care of powerful bass. Thanks to its woofer, the KLA-181 has a frequency response of 38 Hz. Its frequency range extends even further – bass tones as low as 33 Hz are still reproduced. When you combine that with the powerful amplifier, you get a maximum sound pressure level of 135 dB.

QSC KLA-181: Double the Power
As one might say: bigger is better. It doesn’t get any bigger than this though, as the KL-181 subwoofer is extremely powerful. QSC’s KLA-181 features an 18-inch woofer, which is powered by a digital amplifier with a continuous power of 1,000 Watts. As the built-in digital amp has a rather low weight, its power-to-weight ratio is kept to a minimum.

A Line Array Subwoofer with Sub-Settings and Phase Reverse
In addition to the Guardrail protection, the KLA-181 also features two sub-configurations. These allow you to adjust the bass reproduction – you can choose between Standard and Deep. The latter gives the lowest tones an extra, natural punch. With the phase reverse option, you can adjust the phase for an uninterrupted music experience.

Tips or comments about this product
Please note: the subwoofer is sold per piece, the other product images serve illustrative purposes only.
Please note: QSC extends a standard warranty of six years after registration.



Product features
Speaker connections XLR input, out / link / thru
Woofer diameter 18 inches
Weight per speaker 45 kg
Maximum SPL 130 dB – 139 dB
Maximum subwoofer frequency not applicable
Minimum frequency 30 – 34 Hz
RMS power in watts 750 – 1,499 W
Locking speaker connectors no
Power adapter Europlug, Schucko or CEE 7/7 plug
Weight and dimensions including packaging
Weight (incl. packaging)50.0 kg
Product specifications
18-inch active line array subwoofer
woofer: 18-inch cone transducer
frequency response (-6 dB): 38 Hz – crossover
frequency range (-10 dB): 33 Hz – crossover
amplifier bass: 1,000 Watts continuous, class D digital
max. SPL: 135 dB
amplifier protection: Guardrail™ system
SOLO™ rigging system for easy rigging
Ar-Q™ frequency optimisation
connectors: balanced XLR (can be daisy-chained)
PowerCon connector (can be daisy-chained)
subwoofer setting: standard, Deep™
phase reverse
durable plywood housing
dimensions: 21.5 x 23.1 x 24.9 inches (547 x 586 x 633 mm)
weight: 99.9 lbs (45 kg)

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