The S4X models The S4X monitors are not just an improved versions of the famous and highly acclaimed S4A but an evolutionary development. Like their predecessors, they have been designed for medium size control rooms. Given their excessive power, the S4X are also capable of working in larger environments. Because both S4X models have identical tweeters and midrange drivers handling frequencies above 350 Hz, any combination of either model will integrate perfectly in a 5.1 or 7.1 installation. X-ART & newly developed broadband amplifier All models of the SX-Series are equipped with the new X-ART tweeter. The X-ART tweeter has a 4dB higher efficiency, a 3dB higher maximum sound pressure level, and an increase in frequency response up to 50 kHz. The newly designed broadband A/B amplifier has been developed by ADAM to perfectly match the needs and capabilities of the X-ART tweeter. The entire range of sound can be heard as never before. New HexaCone woofers The new HexaCone woofers are designed with larger and longer voice coils that deliver more linear excursion for higher SPL max. values. A stronger magnetic structure is added as well for an optimum in efficiency and accuracy. Optional digital input and magnetical shielding All SX-models (except the S1X) can be optionally retrofitted with a 24 bit/192 kHz D/A Converter featuring an AES/EBU (XLR) and a SPDIF (RCA) inputs as well as a R/L/Mono switch. All models can optionally be magnetically shielded. S4X-H The S4X-H midfield monitor combines the X-ART tweeter with a 5“ HexaCone midrange and two redeveloped 9“ HexaCone woofers. Each of the woofers and midrange drivers are driven by a 250 W ICE module. To allow the X-ART tweeter to extend to its highest frequencies, it is combined with a unique ADAM Audio A/B amplifier. This unique amplifier has ultra low distortion and an immense internal bandwidth of more than 1MHz. Combine this amplifier with the X-ART tweeter and you get a fascinating sound that is effortless and of highest resolution. Improperly designed larger monitors are always at risk at compromising the overall sound with bass reproduction that is too intense. As in all ADAM Audio designed speakers, both versions of the S4X have been designed to combine both the power and volume of the bass (28 Hz at -3 dB point) with the highest possible precision. Combine this with the transparent high and midrange frequencies of the S4X and this will give an engineer a new quality level of control and performance for larger rooms. The frontpanel ADAM has developed an innovative front panel with sophisticated controls. These controls allow the user to adapt the speakers to the soundroom with high precision. Apart from the standby-button, there are two controls for the input sensitivity, two for the bass section and two more for the high frequencies.