Depending on the music or style that the drumline plays, different brands and types of heads may be used. For maximum volume and stick articulation, a head made of woven Kevlar fibers is used and usually tuned to very high tension. If the player desires a slightly "softer" feel, then an aramid fiber head (such as Remo's Black Max) is a good choice. Finally, if more overtones and the softest head-feel are desired, the player may want to consider a heavy clear head with a center reinforcement dot (such as a Remo Powerstroke 77). This type of head is rarely used today among competitive drumlines, mostly owing to its lack of outdoor projection in comparison with Kevlar, but nonetheless, it may still be used if a unique timbre is desired. One of the most famous marching bands utilizing this head is the Ohio State University Marching Band, however, recently, they have switched to the more modern high tension Aramid-fiber heads. Tenor/Quad drums Marching tenor drums (also called quads/quints) are single-headed tonal drums. Modern tenor configurations usually have 4 drums and 1 to 2 special effect drums known as spocks or gocks. The spocks are tuned relatively high and are used to play parts that cut through the ensemble. Tenor players add pitch variety to the drumline with drums of different sizes. Tenor players use matched grip and generally play with mallets with plastic disc-shaped heads, though traditional drumsticks and softer mallets are commonly used to achieve different timbres. Single tenor drums, also known as flubs, are popular in HBCUs, pipe bands or as starting points for inexperienced drummers, and are beaten using soft or hard mallets. Either in the single or the multiple form, these tenors can be mounted on the chest, like bass drums, or horizontally, like traditional snares. Tenor drums are aptly the tenor voice of the ensemble, as well as one of the most melodic. Tenor drums often have parts that mirror what the winds or front ensemble is playing. Because there is often more than one drum, various visuals can be used when performing drum changes such as "cross-overs" or "sweeps". Marching multiple tenor drums can weigh anywhere between 30 and 45 pounds, depending on the model, and number of drums. This means they are typically the heaviest drums in the drumline. Modern marching bands and drum corps use multi-tenors, which consist of several single-headed tom-toms