At £449 the Teufel Concept D THX are definitely at the expensive end of the scale of PC speakers we've tested, and the number of potential buyers for such a high end speaker system intended only for use with a PC probably isn’t that large. Nevertheless, with THX certification and Teufel's strong record of crafting quality audio equipment, it's a price that you could be forgiven for expecting to be justified.
Getting things off to a good start is the build quality, which meets the standards we'd expect from a £449 speaker system. The sub woofer and satellites respectively are solidly constructed, with a real heft to them; the speakers crafted from plastic and the sub from MDF. The satellite speakers come with metal stands and, curiously enough, can be stood in either a portrait or landscape orientation - given their asymmetrical design the latter looks a little odd.
We do, however think that the combination of matt and glossy black gives the Concept D 500 THX speakers the high-end look you'd expect for £449. It's not a groundbreaking colour combination, but it's common for a reason. Uncommon, conversely, is the lack of any covers for the front of the speakers. While we do like the look of exposed drivers, we'd expect to at least have option to give them some extra protection from accidental kicks, the prying fingers of younger family members, or inquisitive pets.
The sheer physical size and weight of the Concept D 500 speakers will be off-putting for some, with the satellites measuring a not inconsiderable 115mm x 29mm x 24mm, the sub woofer an imposing 210mm x 475mm x 455mm and these weighing 1.9kg and 12.9kg respectively. The benefit of this is that the drivers in these speakers are suitably large, the satellites featuring 19mm tweeters handling the high-end and 100mm woofers for the system's mid-range, and the sub woofer boasting a pair of 165mm drivers.