$219.00 per ea

Quantity Price
ea $219.00
2+ $209.00
4+ $190.00
per ea
All prices shown are (inc. GST)


This completely self-contained amplifier module simply fits into the back of a sub-woofer cabinet. The unit will automatically spring into life from it's Standby mode once a signal is received. The Volume and Crossover Frequency Controls together with the Phase Correction Switch allows the sub-woofer to be set for a desired sound. Installation can be completed in just minutes, simply make a 235mmH x 175mmW cutout into the back of the enclosure and slip in the module. Overall depth is 100mm.


  • Auto power on/off with signal presence
  • High and low level inputs
  • High level outputs
  • Volume control
  • Short circuit output protection
  • Active crossover variable from 20Hz - 200Hz
  • Phase reversal switch

Recommended Project Idea:
Purchase an A 2451 and 2 x C 3088 8" Woofers. Ideal combination for a D-I-Y home theatre subwoofer. The 8" woofers employed result in a compact enclosure that could easily fit behind or next to a couch.

This project can be built to the following specifications:

40 litre enclosure
70mm diametre port
100mm port length

This results in a sub enclosure tuned to 45Hz.

Information & Downloads


  • Power Output: 180 Max @ 4Ω (0.5% THD)
  • Frequency Response(Variable): 20Hz - 200Hz
  • Roll Off Rate: 6dB/Octave
  • S/N Ratio: >64dB
  • Auto Turn On Sensitivity: 21mV
  • Auto Power Off Time: 15-20 Minutes
  • Input Impedance: (Line) 47k Ω, (Speaker) 200 Ω
  • Size of facia plate: 210 x 270mm.
    • *Specifications are subject to change without notice.

Warranty & Returns


We offer 12 months warranty on this product from its date of purchase. This is available from Altronics stores, online purchases or Altronics resellers. In accordance with our full warranty terms we will repair, replace or refund if goods you have purchased from us are defective.


Not withstanding our warranty policy, if you are dissatisfied with our goods or service you may return the goods within 14 days of our despatch date. Simply contact us for a return authorisation number and we will refund your purchase in full, less transport costs on receipt of goods. All returned goods must be in as sold condition including all packaging, instructions, invoices etc.

Accessories (Sold Separately)