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With ready built SAM 300D 300watt, Digital amplifier crossover panel

The SW4 is a very compact but powerful 25 litre active subwoofer with an exceptional performance delivering superbly controlled low  bass .This is possible because of equalisation built into the crossover circuit. The downward firing 10" bass unit is the  excellent 1000 watt (peak power) TI   unit with its large magnet, long throw, high Qts, and very stiff  DPC moisture resistant cone and strong rubber surround. The TI range have been individually tested and selected by IPL, and  have been engineered especially for subwoofer use, The combination of these features gives this unit a large force factor (BL)  resulting in superb bass control and extension , making the SW4 suitable for both music and AV use.

The extremely powerful SW4  SAM 300D digital amplifier /crossover unit  produces 300 watt RMS (into 4 ohms) 420 watt peak power. It exhibits: silent, cool and economical operation, and  incorporates; volume control, adjustable frequency contouring (with crossover points between 40 and 200hz), and variable phase control between 0-180 deg. It has low level inputs, both mono and stereo, (for outputs from home cinema amps and stereo pre-amps,), and high level inputs, (suitable for use from stereo integrated amplifier speaker terminals). The amp automatically senses the signal,- shutting down when not in use. THIS AMP NOW HAS A 3 YEAR WARRANTY which you activate via the internet, direct with the manufacturer (details supplied with amp)

 This unit gives complete versatility with Home Cinema and Stereo systems. The superbly extended but controlled bass this unit gives is only achieved in commercial subwoofers costing 2-3 times the price.


The total kit includes a very solid flat-pack 22mm MDF cabinet which can be veneered (1 roll of MV1 is sufficient), sprayed or covered in black ash Venelia. The SW4 is very simple to build and can be completed in a day. The unit comes complete with mains lead. Low level is via gold phono sockets. high level via 4mm plugs or spade connectors.


Crossover frequency lower.................10htz Crossover frequency higher.........40-200hz , (fully adjustable)
Phase control .......0-180 deg Sensitivity........fully adjustable
Size mm....................330x330x350mm Low and high level inputs.
PLUS KIT  Complete Amp/x-over chassis, cables, TI 10"  bass unit, & instructions mounting screws
TOTAL KIT As above inc. 22mm Flat-pack cab kit and feet.

Cab kit included with total kit

 Iron on veneers see cabinet accessories