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Product description HK L.U.C.A.S Impact Impact

When vocals and instruments need to stand out clearly above a solid bass foundation, all the components need to work together. The active HK Audio L.U.C.A.S Impact System combines two satellites with a subwoofer; the amplifiers and DDO™ controller are housed in the subwoofer and matched to the speakers. The system is designed for small to medium-sized sound reinforcement applications.

The bass section uses a 15-inch neodymium speaker, while each of the two satellites has an 8-inch neodymium speaker and a 1-inch compression driver with CD horn. Class-D amplifiers deliver 700 W RMS for the subwoofer and 250 W RMS for each satellite. The 56-bit DDO™ controller processes the signal digitally and compensates for the speakers’ playback characteristics; a multiband limiter provides additional protection against overload.

You can select five sound presets using the control panel: Speech reduces the subwoofer level for speech reproduction, Live 1 emphasises punchy bass and clear vocals, and Live 2 delivers softer, deeper bass. DJ 1 is tuned for CD playback; DJ 2 also takes MP3-encoded sources into account. A sixth setting mutes the system. Presets for speech, live and DJ can be selected using the Up/Down buttons and viewed on the display.

You can adjust gain, left-right balance and subwoofer level separately on the subwoofer. The subwoofer level can be reduced by up to 12 dB or increased by 6 dB from the centre position. Two XLR combo sockets accept the left and right signals; parallel XLR outputs pass them on. Two Speakon outputs power the satellites. A Ground switch separates signal ground from chassis ground when required, for example to resolve hum issues. Separate controls for balance and bass level make it easier to adapt the system to the input signal.

For positioning, the satellites feature a MonoTilt™ pole mount with a 36 mm diameter and a 10° tilt. This makes it easy to angle them down towards the audience. The subwoofer has an M20 threaded plate for a distance pole, castors and ergonomic handles for transport. Castors on the subwoofer and MonoTilt™ on the satellites support setup, pack-down and positioning.

The set is suitable for bands, DJs and speech reinforcement when you’re looking for a matched active system with selectable sound presets, a separately adjustable subwoofer level and two satellites. Speakon speaker cables are required to connect the satellites; the input signals are connected via XLR. The integrated amplification in the subwoofer eliminates the need for separate amplifiers for the bass and satellites.

Features HK Audio L.U.C.A.S Impact System

  • Active PA system for small to medium-sized sound reinforcement applications, with subwoofer and two satellites
  • DDO™ system controller with five sound presets and an additional mute setting
  • 56-bit signal processing with DDO™ controller and multiband limiter
  • 700 W RMS Class-D amplifier for the subwoofer and two Class-D amplifiers rated at 250 W RMS each for the satellites
  • Subwoofer with a 15-inch neodymium speaker
  • Satellites with an 8-inch neodymium speaker and a 1-inch compression driver each
  • Satellite CD horn with a 60° x 40° dispersion angle
  • Speech, Live 1, Live 2, DJ 1 and DJ 2 presets
  • Gain, balance and subwoofer level controls, plus Ground switch
  • Two XLR combo sockets for signal inputs and two parallel XLR outputs
  • Two Speakon NL4 outputs for the satellites
  • MonoTilt™ pole mount with 36 mm diameter and 10° tilt on the satellites
  • M20 threaded plate on the subwoofer
  • Subwoofer with castors and ergonomic transport handles

Technical specifications

  • Amplifier powerSubwoofer 700 W RMS | Satellites 2 x 250 W RMS | Class D
  • Controller24 Bit / 48 kHz sampling rate | 56-bit internal signal processing
  • Protection circuitsDDO™-controlled multiband limiter | dynamic driver protection in the satellites
  • Subwoofer frequency response45–130 Hz (± 3 dB) | 36–130 Hz (-10 dB)
  • Subwoofer sensitivity101 dB (1 W / 1 m, half-space)
  • Max. subwoofer sound pressure level127 dB at 10 % THD (half-space)
  • Subwoofer inputs2 x XLR combo socket, electronically balanced and isolated from ground
  • Input impedance47 kΩ
  • Input sensitivity0 dBV (1 V) | switchable +4 dBu / -6 dBu
  • Max. input level+20 dBu
  • Parallel outputs2 x XLR
  • Satellite outputs on subwoofer2 x Speakon NL4
  • Satellite speakers1 x 8-inch neodymium woofer and 1 x 1-inch driver each
  • Satellite frequency response130 Hz–19 kHz (± 3 dB, via DDO™ controller)
  • Satellite power handling250 W RMS each
  • Satellite nominal impedance8 Ω
  • Satellite sensitivity103 dB (1 W / 1 m, half-space)
  • Max. satellite sound pressure level125 dB at 10 % THD (half-space)
  • Horn characteristics60° x 40° CD horn
  • Satellite passive crossover frequency2,2 kHz | 12 dB / octave
  • Satellite inputSpeakon NL4
  • Satellite pole mountMonoTilt™ | 36 mm | -10°
  • Current consumption, maximum4,4 A (220–240 V) | 8 A (110–120 V)
  • Power consumption, maximum1000 W
  • Operating temperature-10 °C to +35 °C
  • WeightSystem 47 kg | Subwoofer 32 kg | Satellites 7,5 kg each
  • Dimensions (W x D x H)Subwoofer 475 x 585 x 470 mm (without castors) | Satellite 258 x 285 x 385 mm

Scope of delivery

  • HK Audio L.U.C.A.S Impact System active PA system with subwoofer and two satellites
Responsible company
GSM-Multimedia GmbH
Siemensstr. 10
94405 Landau a.d. Isar
Germany

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