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SUB618 is a bass-reflex active subwoofer featuring a 600W RMS Class D Power Amplifier with SMPS and is equipped with a 18” transducer.

The system delivers outstanding sound pressure levels (up to 133dB) in spite of its compact housing, while providing a clean, impressively precise low-end reproduction.

Sub 600s’ outstanding audio performance allow user to build most of the PA systems with 1 single sub and 2 full range speakers, avoiding any external processing or crossover thanks to a balanced Xover signal to left and right speakers.
Controls on the amp panel allow user to operate with Mono or Stereo audio feed, activate polarity inversion and choose Outputs link mode (True Bypass or Xover). Whenever a further punch is needed, a low-frequencies boost EQ can be set thanks to the Sub Mode switch.

The series comes with a full grille design in a lightweight wood cabinet (total weight 31kg /68 lbs) strengthened with a hardwearing, scratch-resistant black covering. Carved side handles enhance portability. The design of the top side eases subs stacking in larger systems and features a M20 pole mount thread to stack full-range speakers


00 W RMS Class D AMP
Selectable Stereo Balanced Input
Link or Xover Balanced Stereo Output Mode
Compact and sturdy wood cabinet
Polarity Switch
FLAT or BOOST Mode Switch


Technical Data
Speaker Type Active Subwoofer

Acoustical data
Frequency Response [-10dB]35 - 130 Hz
Max SPL (1 m)133 dB
Directivity omnidirectional
LF 18"
LF Voice Coil 2.5"

Amp Technology SMSP digital amplifier
Amp Class Class D
RMS Power 600 W
Peak Power 1200 W
Controller 28/56 bit DSP
Limiter Peak, Thermal, RMS
Controls Subwoofer level, Outputs mode, Polarity, Subwoofer mode

Signal Input2x XLR (balanced)
Signal Output2x XLR (balanced)

Housing Plywood
Grille Full metal grid
Pole Mount M20
Width 500 mm (19.69 in)
Height 625 mm (24.60 in)
Depth 690 mm (27.17 in)
Weight 31.1 kg (68.57 lbs)

dB Tech SUB 618

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