Floor-standing speaker Criterion S 2100 CTL
The S 2100 is the medium-sized floor-standing speaker in the CTL series; although it is more compact it is still not small, as it measures a full metre in height. This size ensures that there is ample volume available for the transmission line, which in turn generates very powerful low bass at high volume. In terms of construction it is very similar to the S 2200 CTL; the only difference is that the woofers are slightly smaller. The two 17 cm bass units exactly mirror the 22 cm drivers of the larger S 2200 CTL in design and features. Their resonant frequency is low, they are matched to the transmission line just as accurately, and their extremely hard, embossed cones generate very deep, forceful and accurate bass.
As in its big sister, the speaker’s 15 cm mid-range, textile dome treble unit and sculpted “organic baffle” combine to form an acoustic unit which we have named CD = Constant Directivity. This is responsible for the speaker’s superbly spacious sound and outstanding radiation characteristics. The impregnated textile dome tweeter retains its lively, airy qualities even when reproducing extreme dynamic peaks, without any tendency to sound hard or sharp. Like all CTL loudspeakers the S 2100 CTL is fitted with a sophisticated double-sided three-way crossover unit (FSR). It is effortlessly capable of handling even the highest levels, and provides perfect control of the three frequency ranges. The speaker’s impressive imaging and dispersion characteristics over the full frequency range are a direct result of the design of the crossover. The S 2100 CTL is effortlessly capable of processing very high levels, and provides a quality of low bass previously considered impossible from a cabinet of this modest size. Nevertheless, its bass response is not quite a match for that of the S 2200 CTL. Like the latter, its refined, carefully developed design also makes it the perfect choice for reproducing the most delicate music with natural sensitivity.