| Hartke HA2500
250 Watts Bass Amplifier Head
The HA2500 provides 250 watts of power to a 4 ohm speaker system or 180 watts to an 8 ohm speaker system. With that kind of power, the HA2500 is EXTREMELY loud and punchy. In addition, the HA2500 offers a number of additional advanced features, including front-panel compression and graphic equalizers, effects send and return jacks, an effects send/return balance knob, and a direct output with ground lift and pre or post EQ selection. The HA2500 is optimized for use with electric bass instruments. You’ll find it to be an excellent bass amplifier for live performance use in small and medium-size venues; in addition, the HA2500’s advanced pre-amp features makes it ideal for use in recording environments.
With 250 watts of available power, the HA2500 will drive your small to mid-sized bass rig with incredible clarity and punch. In addition, the HA2500 offers a number of advanced features, including front panel compression and ten bands of graphic equalization, allowing you to create a broad range of tonal colors. A dedicated in/out button even allows you to preset an equalization curve. Two fully adjustable contour knobs (high pass and low pass) also provide further control for shaping your bass sound.
Effects send and return jacks let you connect to professional outboard effects processors and an effect balance knob enables you to adjust the relative amount of send ("dry") versus return ("wet") effect signal being routed to the speaker outputs. Protection relay circuitry also protects connected speakers from dangerous overloading and also prevents "thumps" when powering on or off.
The Hartke silver-face chassis adds a clean, stylish aesthetic to any rig and rugged construction makes the HA2500 eminently roadworthy. Plus, with advanced preamp features, this amp is as ideal for studio work as it is for live performances. All this combined with exceptional reliability makes the HA2500 a staple amplifier for the contemporary bass industry.
Features
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Power to spare — HA2500, a full 250 watts delivered to a 4 ohm speaker system or 180 watts to an 8 ohm speaker system.
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The unique Transient Attack® circuitry which ensures that every nuance of your bass performance is reproduced faithfully.
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Two Pre-Amp input knobs, allowing custom blending of solid state and tube type sounds.
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Ten bands of high-quality graphic equalization, allowing you to create a broad range of tonal colors for your bass instrument. A dedicated in/out button allows you to preset an equalization curve.
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Two fully adjustable contour knobs (high pass and low pass), which provide further control over shaping your bass sound.
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A built-in compressor which not only adds real “punch” to your bass sound, but also allows you to smooth out volume differences between notes.
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Two independent inputs that accommodate both passive and active bass guitars.
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Protection relay circuitry that protects connected speakers from dangerous overloading and also prevents “thumps” when powering on or off.
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Effect loop send and return jacks that allow you to connect to professional outboard effects processors.
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An effect Balance knob which enables you to adjust the relative amount of Send (“dry”) versus Return (“wet”) effect signal being routed to the speaker outputs.
Specifications
Input Sensitivity
Passive Input 100 k Ohms, 20 mv.
Active Input 100 k Ohms, 60 mv.
Rated Output Power
250 watts @ 4 ohms
180 watts @ 8 ohms
Total Harmonic Distortion: less than .5%
Signal To Noise Ratio: approx. 78 dB
Equalizer
Contour Low Pass: ±18 dB @ 100 Hz
Contour High Pass: ±18 dB @ 10 kHz
Ten-Band Graphic
±15 dB, center detented @ 30 Hz, 64 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 3 kHz, 5 kHz, 8 kHz
Compression Ratio: 2:1 to infinity
Send Output Level: 0 dBM
Return Input Level: 0 dBM
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