Overview
Hartke's popular HD Series continues to grow with the addition of the high-powered, lightweight HD508 Bass Combo. Packing four 8″ Hartke patented HyDrive speakers and a 500-watt Class D amplifier into a sleek enclosure weighing only 49 pounds, the HD508 provides exceptional bass tone to any rehearsal, stage, or studio.
HyDrive speakers feature carefully crafted paper/aluminum hybrid cone drivers. The hybrid makeup delivers an exceptional blend of warmth and attack that can't be attained by traditional all-paper bass speakers. Specific to the HD508, packing four 8″ HyDrive speakers into a single cabinet creates a combined cone area that is larger, as well as able to reproduce a wider audio range, than that of a single 15″ speaker.
Beyond the impeccable tone of the HyDrive speakers, the HD508 offers tremendous power in a highly-portable design. Its lightweight Class D amplifier produces an earth-shaking 500 watts of power capable of filling any rehearsal space, recording studio, or performance venue. Weighing just 49 pounds in all, the HD508 can be easily transported via its molded strap carry handle, metal side carry handles, or removable casters. Ideally suited for tone shaping, the unit includes a selectable Shape circuit for specialized EQ curves and a standard 3-band EQ for further customization.
Features
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Lightweight Class D Amplifier – Weighs only 49 lbs while delivering massive power.
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500 Watts of Power – Capable of filling rehearsals, studios, and venues with ease.
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Four 8" HyDrive Drivers – Paper/aluminum hybrid cones offer a unique blend of warmth and attack with a large combined cone area.
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Tone Shaping Control – Features Hartke's Shape EQ knob with a variable filter (100Hz–900Hz).
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3-Band EQ – dedicated Bass, Mid, and Treble controls for precise frequency customization.
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Comprehensive Connectivity – Includes XLR direct out, 1/8" stereo Aux input, 1/4" headphone output, and Effects loop.
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Rugged Design – Built with a perforated steel grille, molded strap handle, and metal side handles.
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Mobile Ready – Includes four removable casters for easy transport.
Specifications
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Amplifier: Class D, top-mounted control panel
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Rated Output Power: 500W Peak
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Rated Input Level: 77.46mv rms (@1kHz)
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Speakers: Four 8" paper/aluminum cone drivers
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Total Harmonic Distortion: 0.54% (@1dB below rated output)
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Signal To Noise Ratio: 1W/49.3dBu (1Wrms @1kHz)
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Equalizer Center Frequency: Bass: 70Hz, Mid: 700Hz, Treble: 5kHz
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Shape Control: 100Hz–900Hz
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Inputs: 1/4" instrument, 1/8" stereo Aux
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Outputs: 1/4" headphone, XLR direct out
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Effects Loop: 1/4" Send, 1/4" Return
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Cabinet Design: 5/8" plywood, shelf port
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Grille: Perforated metal
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Handles: Molded strap (steel reinforced), 2 x inset handles
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Product Dimensions: 21.75" (551mm) x 20" (508mm) x 12" (305mm)
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Product Weight: 49lb (22.2kg)
