Owner's Manual
Important Safety Information ATTENTION RISQUE DE CHOC ÉLECTRONIQUE NE PAS OUVRIR This lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of non-insulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock.
Important Safety Information 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
Introduction Congratulations on the purchase of your new Hartke TX300 Bass Amplifier! We know you don’t like reading owner’s manuals, but we suggest you take some time to go through these pages to fully understand how we’ve implemented a number of unique features. The TX300 is a lightweight, 300-watt Class D bass amplifier that offers the legendary Hartke preamp circuity in a highly portable design. To sculpt your sound, the TX300 features three-band EQ, with Hartke’s Shape circuit.
Front Panel Callouts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1. INPUT - Connect your bass guitar here using a standard 1/4” instrument cable. 2. MUTE Switch - This switch lights orange when the TX300 is powered on. When engaged, the switch lights red and mutes all of the outputs. 3. DRIVE - This control knob adjusts the amount of overdrive applied to the input signal. 4. COMPRESSOR Knob - This knob determines the amount of compression by adjusting the threshold level.
Rear Panel Callouts 1 2 3 4 5 6 7 8 9 10 1. REAMP OUT Jack - This output jack is fed from the preamp, and may be used with an external P power amplifier, to connect to a mixing console, or to an effects processor. Use a standard 1/4” instrument cable when connecting to external devices. 2. OWER AMP IN Jack - This line level input, low impedance jack connects directly to the interP nal power amp, and can be used with external preamps.
Quick Start Setting up your Hartke TX300 Amplifier is a simple procedure, which takes only a few minutes. 1. emove all packing materials (save them in case your unit requires servicing in the future) R and decide where the amplifier is to be physically placed. To avoid potential overheating, be sure that the rear panel fan is unobstructed and that there is proper ventilation around the entire unit. 2.
Choosing the Correct Speaker Cabinets When choosing a speaker cabinet to use with your Hartke TX300, there are many specifications to consider (impedance, power handling, frequency response, etc). While most specs are pretty straight forward, there is often questions about impedance. Basically, impedance is the amount of current that will flow through a speaker at a certain voltage. It is measured in Ohms (Ω). The actual impedance of a speaker is not constant across all frequencies.
About Compression The dynamic range of a sound is the difference between its loudest and softest levels. For example, as you play your bass, you’ll probably find that some notes (such as notes played on the upper frets of the lowest string) are considerably louder than others. The function of the compression circuitry in the TX300 amplifier is to reduce overall dynamic range by automatically reducing the level of the loudest sounds you play so that they are closer in level to softer ones.
About Equalization The Hartke TX300 Bass Amplifier gives you control over shaping the sound of your bass, using a process called equalization. To understand how this works, it’s important to know that every naturally occurring sound consists of a broad range of pitches, or frequencies, combined together in a unique way. This blend is what gives every sound its distinctive tonal color.
Specifications Rated Output Power 300 watts @ 4 ohms 200 watts @ 8 ohms Input >1MΩ unbalanced Compressor Ratio Fixed 1.6:1 Compressor Threshold Off to -30dBu to Input Mute >80dB (100dB typical) at Direct Output & Speaker Output EQ Bass Shelf Mid Peak Treble Shelf Shape Range Preamp Output +/-16dB @ 30Hz (+/-12dB @ 70Hz) +/-16dB @ 700Hz +/-16dB @ 6.
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