Description
Hartke HD25 8 25 Watt Bass Combo Amplifier
Specifications & Features
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Power: 25 W
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Speaker: 8″ HyDrive (hybrid cone — half paper, half aluminum)
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Controls: Volume, Bass, Mid, Treble (top-mounted)
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Inputs / Outputs:
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¼″ input for active and passive bass
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1/8″ (3.5 mm) stereo auxiliary input (for MP3 players, etc.)
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¼″ headphone out (which mutes the speaker)
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Limiter: Built-in limiter to protect the amp / speaker
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Cabinet: Perforated metal grille, molded strap handle for portability
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Tone EQ Frequencies:
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Bass: ~100 Hz
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Mid: ~400 Hz
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Treble: ~10 kHz
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Audio Specs:
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Input level: 44.6 mV RMS
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Total Harmonic Distortion: ~0.09%
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Signal-to-noise: 1 W → 60 dB, 25 W → 74 dB
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Signal gain: –27 dBV
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Headphone Output Power: 125 mW / 32 Ω
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Dimensions (H × W × D): ~15.2″ × 14″ × 10″ (≈ 387 mm × 355 mm × 254 mm)
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Weight: ~24.7 lb / 11.2 kg
Tone & Use‑Cases
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The HyDrive speaker gives a balanced, dynamic tone: you get warmth from the paper cone + punch/attack from the aluminum part.
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With only 25 W, this amp is best suited for practice, small rehearsal rooms, or bedroom playing, rather than loud gigging.
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The AUX input lets you play along with backing tracks, which is super handy for practice.
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Headphone out makes it great for quiet practice.
Additional information
| Weight | 11.2 kg |
|---|---|
| Brand | HARTKE |

