K-Array Firenze KS7P I Dual 21" 2x4Ω Passive subwoofer - Mark I (Black)

K-Array SKU: KS7P I
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Sale price$14,025.00


The 2 x 21” subwoofer features neodymium magnets with 6” voice coils driven by powerful Class D amplifiers. The large ports are designed to be fully symmetrical to the speakers, which means the back loading on the drivers is consistent and even with no port air turbulence. The rear panel provides balanced analog and digital AES3 inputs and Ethernet connectivity for complete remote control over the fully-featured integrated DSP. With the Firenze-KS7, gradient/cardioid configurations and end-fire arrangements are made easy with up to 2 seconds of input delay and frequency shaping. The Firenze-KS7 is an all-encompassing subwoofer that is capable of being employed as a single point source or in an arch array configuration.


  • Type:  

    Active subwoofer

  • Transducers:  

    2x 21" Neodymium magnet woofer with 5.31" voice coil

  • Frequency Response:  

    25 Hz - 120 Hz (-6 dB)

  • Max SPL:  


    145 dB peak


  • Coverage:  


  • Remote Control:  


    Remote control with dedicated PC software via Ethernet


  • Connectors:  

    1x XLR (bal) input signal
    1x XLR (bal) parallel output
    1x XLR AES3 input

Digital Signal Processor

  • Built-in DSP:  

    Input gain, delay up to 2 s,
    Full parametric IIR filters (Peaking, Shelving, Hi/Lo pass, Hi/Lo Butterworth),
    Level and Temperature remote monitoring

Handling and Finishes

  • Dimensions (W x H x D):  

    1162 x 590 x 851 mm (45.7 x 23.2 x 33.5 in) (3)

  • Weight:  

    104.4 kg (230.16 lb)

  • Material:  


  • Colors:  

    Black, White, Custom RAL


  • IP Rating:  



  • Amp Module:  

    2-ch., switch mode, class D

  • Output Power:  

    2x 3500 W @ 2 Ω 1% THD+N

  • Power Consumption:  

    600 W @ 4 Ω load, Pink noise 1/8 rated power

  • Protections:  

    Over Temp. (Power Limiting - Thermal Shutdown), Short Circuit/Overload Output Protection,
    Power Limiting, Clip Limiter/Permanent Signal Limiter, High Frequency Protection

  • Operating Range:  

    100-240V AC, 50-60 Hz with PFC

  • Mains Connector:  

    powerCON True with link inlet

At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.

  • Most in-stock orders placed Monday-Friday before 1PM PST ship the same day. Orders placed after 1PM will ship the next day of business. General restrictions apply; please see our full shipping policy here.
  • We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.

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