The all-new HD25 Bass Combo packs Hartke's revolutionary HyDrive speaker design into a sleek combo design ideal for bedroom practice/jam sessions and small rehearsal spaces, and capable of greatly enriching your low-end tone. The HD25 also maintains Hartke's commitment to producing high quality bass amplification with exceptional durability. The HD25 (25 watts, 8 inch. driver) employs Hartke's patented HyDrive Speaker Technology that offers a carefully crafted hybrid (half paper, half aluminum) cone bass speaker. By combining the warmth and roundness of paper with the punch and attack of aluminum, the HyDrive design produces serious tone that is ideal for bass players of all genres and styles. Packed with professional features, the HD25 combo is designed to be user-friendly and reliable for players of all levels. The combo offers Volume, Bass, Mid and Treble controls on its top-mounted amplifier panel, allowing for easy adjustments. It also features an 1/8 inch. stereo Aux input for playing along with your favorite tracks via an MP3 player and a 1/4 inch. headphone output for more intimate practice sessions. In addition, the HD25 has a built-in limiter to ensure constant amp operation at safe levels. Lastly, its solid enclosure is finished in a stylish fashion with a sleek, perforated metal grill and molded strap carry handle. With the exceptional tone of a HyDrive speaker housed in a durable, highly portable enclosure, Hartke's HD25 Bass Combo is able to perform at levels far beyond ordinary bass combos.