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Active Subwoofers

LD Systems ICOA SUB Pro 21 A

4.0 out of 5 stars from 1 customer ratings ()
LD Systems
LD Systems ICOA SUB Pro 21 A
Start 360°
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB Pro 21 A

Active 21" Bassreflex Subwoofer

  • Powerful low-end up to 29 Hz
  • Class D power amplifier
  • Speaker configuration: 21" woofer and 4.5" voice coil
  • Power: 1500 W RMS / 3000 W Peak
  • Max. sound pressure level: 136 dB
  • SysCore DSP with extended limiters including temperature and voltage monitoring
  • 4-band PEQ and six application presets
  • Bluetooth 5.1 and stereo streaming (TWS) with two ICOA PROs
  • Free app for remote customisation via smartphone and tablet (iOS and Android)
  • Line delay for up to 50 metres
  • Front LED display
  • 8 ergonomic handles
  • Two M20 threads
  • 2 x 4 stacking grooves
  • Fanless passive cooling system with airflow-supported cooling of the electronics
  • Mic/line inputs: Two XLR 3-pin female
  • Line outputs: Two XLR thru 3-pin male
  • Dimensions (W x H x D): 566 x 700 x 699 mm
  • Weight: 57 kg
  • Colour: Black
30-Day Money-Back Guarantee
3-Year Thomann Warranty
  • Available since April 2025
  • Item number 614891
  • Sales Unit 1 piece(s)
  • Power (Manufacturers Specs) 3000 W
  • Number of Bass Woofers 1
  • Bass Woofer in Inch 21"
  • Colour Black
  • Width 566 mm
  • Height 700 mm
  • Depth 699 mm
  • Weight 57 kg
  • Wheels No
  • Stand Flange M20
  • Multi Channel Power Amp No
  • Remote Control BT
  • RMS Power 1500 W
  • Sound Pressure in dB 136 dB
  • Housing Material Wood
  • Construction Bass reflex
  • Dsp Yes
  • Input Connector XLR
  • Output Connector XLR
  • X-Over Connector XLR
  • High Cut Adjustable
  • Frequency Range (-10dB) from 29 Hz
Show variations of this product
LD Systems ICOA SUB Pro 21 A
LD Systems ICOA SUB 18 A
LD Systems ICOA SUB 15 A
LD Systems ICOA SUB Pro 21 A
1
LD Systems ICOA SUB Pro 21 A

LD Systems ICOA SUB Pro 21 A Active 21" Bassreflex Subwoofer * Powerful low-end up to 29 Hz * Class D power amplifier * ...

26.690 kr
to the product
LD Systems ICOA SUB 18 A
23
LD Systems ICOA SUB 18 A

LD Systems ICOA SUB 18 A Active 18" Bass Reflex PA Subwoofer * 18" subwoofer for a powerful low end up to 29 Hz * Power:...

10.222 kr
to the product
LD Systems ICOA SUB 15 A
15
LD Systems ICOA SUB 15 A

LD Systems ICOA SUB 15 A Active 15" Bass Reflex PA Subwoofer * 15" Subwoofer for a powerful low end up to 36 Hz * Power:...

8.799 kr
to the product
26.690 kr
All prices incl. VAT
In stock
1
36
Sales Rank
in Active Subwoofers
Bundles & offers
LD Systems ICOA Pro 12A/21A Power Set
LD Systems ICOA Pro 12A/21A Power Set
89.300 kr
LD Systems ICOA Pro 15A/21A Power Set
LD Systems ICOA Pro 15A/21A Power Set
93.800 kr

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1 Customer ratings

5 0 Customers 4 1 Customer 3 0 Customers 2 0 Customers 1 0 Customers
4 / 5
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1 Review

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KM
Tiefgang mit Abstrichen
Karolus Magnum 10.06.2026
Zuerst einmal: Der Bass ist ziemlich schwer. Mit Rollbrett und cover um die 65kg. Für das Gewicht kriegt man mancherorts schon einen Doppel 18er. Dieses hohe Gewicht macht er aber wett mit den acht perfekt platzierten, geräumigen Griffen, die auch den breitesten Händen genug Platz bieten, um aus jedem Winkel anzupacken. Verarbeitung ist super. Der Lack fühlt sich wertig an und die DSP-Einheit ist einfach zu steuern, mit Delay, 4-Band-EQ, Cardioid-Option und so weiter.
Laut ist er natürlich, und trotz der 21 Zoll Pappe hat er einen schönen Punch und reagiert schnell und präzise. Natürlich darf man nicht die Knackigkeit eines 15ers erwarten (von denen er zwei Stück locker ersetzen könnte), aber so manchen 18er haut er in Sachen Präzision aus der Arena. Und tief kann er, bis 35Hz ohne jeglichen Pegelverlust, darunter geht es langsam bergab. 29Hz macht er auch, gefühlt sogar lauter als die angegebenen -10dB.
Doch hier kommt das große aber:
Bei hohen Pegeln fangen die Bassreflexöffnungen an, zu schnaufen. Wenn man Musik mit tiefen Kicks spielt, um die sonst nicht viel los ist wie z.B. der Anfang von Ariana Grande's One Last Time, hört man unterhalb von 48Hz deutliche Portgeräusche. Weil das aber für mich zu diesem Preis sehr wichtig ist, ging der Sub leider zurück und die Suche ging weiter.

Für wen aber Hifi-Qualität keine Top-Prio ist, der ist mit diesem Sub bestens ausgestattet.
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