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8" Bass Combo

The HD25 Bass Combo packs Hartke's patented HyDrive speaker technology into a sleek combo design that is ideal for small venues, rehearsal rooms, and bedroom practice sessions, and can greatly enhance your low end. The HD25 also maintains Hartke's commitment to producing high-quality bass amplification with exceptional durability.

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  • The HyDrive Design

    The HD25 (25-watt, 8-inch driver) features Hartke's patented HyDrive speaker technology, a carefully crafted hybrid (half paper, half aluminum) cone bass speaker. Combining the warmth and roundness of paper with the punch and attack of aluminum, the HyDrive design produces a serious tone ideal for bassists of all genres and styles.

  • HD25_Top_Updated

    Solid... With Style

    Packed with professional features, the HD25 combo is designed to be easy to use and reliable for players of all levels. The combo offers volume, bass, mid, and treble controls on its top-mounted amp panel for easy adjustments. It also features a 1/8" stereo auxiliary input for playing along with your favorite tunes on an MP3 player and a 1⁄4" headphone output for more intimate practice sessions. The HD25 also features a built-in limiter to keep the amp running at safe levels. Finally, its rugged enclosure is stylishly finished with a sleek, perforated metal grille and molded strap carry handle. With the exceptional tone of a HyDrive speaker in a durable, highly portable enclosure, the Hartke HD25 bass combo is capable of performing at levels far beyond ordinary bass combos.

Features / Specs


  • 25 watts of output power
  • 8" HyDrive paper and aluminum cone driver
  • Top-mounted amplifier with Volume, Bass, Mid and Treble controls
  • 1⁄4" input for active and passive bass guitars
  • 1/8" stereo Aux input for stereo line level devices (MP3 players, drum machines, keyboards, etc.)
  • 1⁄4" headphone output
  • Built-in limiter
  • Perforated metal grille
  • Molded strap carry handle


Rated Output Power 25w
Rated Input Level (@ 1 kHz) 44.6mv rms
Total Harmonic Distortion 0.09%
Signal To Noise Ratio (1 Wrms @ 1 kHz) 1W/60dB, 25W/74dB
Signal Gain -27dBV
Bass Control 100 Hz
Mid Control 400 Hz
Treble Control 10 kHz
Headphone Output 125mW/32 Ohms
Dimensions 15.2” x 14” x 10” / 387mm x 355mm x 254mm
Weight 24.7lb / 11.2kg

Warning CALIFORNIA PROPOSITION 65 WARNING: Cancer and Reproductive Harm -

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