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The GT SUB 18 A is powered by a built-in Class D amplifier with 1600 watts peak output and high-efficiency SMPS as well as overcurrent and overvoltage protection. It provides a 32 Hz - 200 Hz frequency response and features XLR and 6.3 mm line inputs, XLR line output, an adjustable low-pass filter and filtered 100 Hz satellite output.

A protective cover is available as accessory.

Shipping Info
Shipping Availability Philippines
Technical Specifications
Amplifier Class D
Cabinet constructions vented
Cabinet Material 18 mm MDF
Cabinet surface Dura-vinyl textured paint
Features LD Systems GT handles, Threaded flange M20
Frequency response 32 - 200Hz
Indicators limit, Power, protect (protection circuit engaged), signal
Input impedance 27 kΩ
Line input connectors 6.3 mm Jack, XLR
Line inputs 2
Line output connectors XLR
Line outputs 2 x sat output 100 Hz, 2 x direct output
Low/mid driver dimensions 18"
Max SPL (peak) 128dB
Max. SPL (continuous) 125dB
Operating voltage Switching Power Supply, 100 V AC - 120 V AC, 200 V AC - 240 V AC, 50 - 60 Hz (automatic conversion)
Product Type PA subwoofer
Protection circuits limiter, DC, over-current, short circuit
RMS 400W
Type active
Controls Sub Freq (adjustable low-pass filter), sub level, Subwoofer Phase Reverse

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LD Systems GT SUB 18 A 18" Powered Subwoofer

With its custom 18" low frequency transducer and a peak SPL of 128 dB, the GT SUB 18 A active subwoofer delivers a big, tight bottom end with superb transient response. Providing amazing value, it sports a sturdy MDF bass reflex enclosure with hard-wearing textured Dura-Vinyl covering, heavy-duty steel handles, a steel grille with honeycomb pattern and threaded M20 pole insert.


  • Brand: LD Systems
  • Product Code: LDGTSUB18A
  • Availability: In Stock


Tags: LD systems, GT, loudspeaker, GT 18 A sub, 18 18 18", powered, subwoofer, speakers