Compared to the Labtecs, the ACS45.1 satellite units are larger, though not enormously so, and sport push-button volume controls which double as the on/off switch. The large sub-woofer unit, which houses a generous 12cm driver, is an all-wood box, designed to enhance bass resolution.

The sub-woofer also gets its own separate setting up volume knob. Audio input is via a conventional 3.5mm stereo jack lead from your sound card or any other compatible audio source and goes into a choice of two input sockets on the sub-woofer unit. The satellites are then fed from one socket on the sub-woofer. Apart from the power lead to the sub-woofer, only three cables are involved - one from the audio source, one to the right hand satellite with the volume controls and then one from this unit to the left hand unit.

Sonically, the ACS45.1 has stonking bass performance. You can really rattle the floorboards. The performance of the satellites drew a more mixed response from listeners. They have a smooth, easy-to-listen-to quality about them with a good central stereo image, but the treble was a bit muted, which tended to mask any spaciousness in the sound.