The HyDrive Design
The HD75 (75 watt, 12" driver, 1" tweeter) features Hartke's patented HyDrive speaker technology, which offers a meticulously 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.
HyDrive-Cone
HD75_Top
Solid... With Style
Packed with professional features, the HD75 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, as well as a 7-band graphic EQ for easy tweaking. It features a full effects loop, as well as a 1/8" stereo auxiliary input for playing along with your favorite tunes via an MP3 player, and a 1⁄4" headphone output for more intimate practice sessions. In addition, the HD75 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 sound of HyDrive speakers in a durable, highly portable enclosure, the Hartke HD75 bass combo is able to perform at levels far beyond ordinary bass combos.
Features / Specs
Features
75 watts of output power
12” HyDrive paper and aluminum cone driver
1” tweeter
Top-mounted amplifier with Volume, Bass, Mid and Treble controls
7-band graphic EQ
1⁄4” input for active and passive bass guitars
1/8” stereo Aux input for stereo line level devices (MP3 players, drum machines, etc.)
1⁄4” headphone output
Built-in limiter
Effects loop
Perforated metal grille
Molded strap carry handle
Specifications
Rated Output Power 75w
Rated Input Level (@ 1 kHz) 44.6mv rms
HD150 38.8mv rms
Total Harmonic Distortion (@ 1 dB below rated output, 1 kHz typical) 0.32%
Signal To Noise Ratio 1W/62dB
Signal Gain Speaker Output 35V
Signal Gain to Send Jack 545mV
Bass Control 50 Hz
Mid Control 700 Hz
Treble Control 10 kHz
Seven-Band Graphic EQ Frequencies 63Hz, 125Hz, 250Hz, 500Hz, 1.25kHz, 2.5kHz, 5kHz
Dimensions 19.9” x 18.6” x 13.9” / 506mm x 472mm x 353mm
Weight 48.2lb / 24.7kg