OLi 30 Black: 2 Way Dual 5.25" Tower Loudspeaker
The dual 5.25" OLi30 is Roth’s most affordable tower loudspeaker but it’s equipped with all the OLi technology and features required to make it sound as sensational as its big brother. If you’re looking for an elegant way of bringing sensational sound to your home you need look no further than the OLi30.
Great stereo-imaging, superlative sound-stage performance and accurate reproduction of what the artist intended all this for such a cost-effective price.
Beautifully finished with high-gloss black top and base, with black Ash effect sides, the OLi speakers look as good as they sound.
We recommend that the OLi30 are used as the main speakers in a stereo set-up, or perhaps as front L and R speakers in a 5.1 system.
Black Diamond Silk Dome Tweeter
The OLi series Black Diamond Silk Dome tweeter creates the wonderful high frequency clarity that has become a Roth Audio signature. Extremely light silk is heated to extreme temperatures, molded into its dome shape, and treated with our proprietary Black Diamond amalgamation to give it the strength and rigidity it needs to maintain its shape. The tweeter also features strong neodymium magnets, Ferro fluid in the gap and thermal protection circuits to handle high power and maintain perfect performance.
Woven Fiberglass Hybrid Woofer
Woven Fiberglass possesses an incredible strength to weight ratio which is why it’s a popular material used in the construction of race car bodies, allowing them to stay very light yet maintain perfect rigidity. The benefits are identical when applying it to woofer construction, making it light enough to react quickly for a quick, tight response, yet strong enough to maintain its shape during challenging, explosive, bass-heavy passages so it’s free of unwanted distortion.
Woven Fiberglass Hybrid midrange and Aluminum Phase Plug
The Woven Fiberglass Hybrid midrange cone is identical to the Woven Fiberglass Hybrid woofer with the important addition of a true phase plug. Midranges benefit from a true phase plug to help synchronize the sound that comes from the edge and center of the cone and time align the frequencies in the 300Hz-2K range. Frequencies below this, like those from a woofer, are Omni directional by nature and do not need a phase plug which actually limits the SPL of a woofer. The phase plug slows down the acoustic wave from the center of the cone so it's transmitted at the same time as the acoustic wave from the edge, which is marginally slower, for perfect sonic accuracy. It also reduces cone mass to permit an extended frequency response and allows more airflow through the motor structure that improves cooling, thus increasing power handling.
DALtech Acoustic Damping
Distortion occurs when a speaker resonates from the speaker’s own energy, discoloring the desired sound and resulting in reduced sound quality. DALtech, which stands for Dead as Lead Technology, is an acoustic damping material that eliminates this distortion when strategically installed in specific parts of the speaker cabinet, capturing and absorbing the unwanted resonances for pure, untainted speaker reproduction.