Hartke LH500 Owner's Manual
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Hartke LH500 Owner's Manual

500 & 1000 watt bass amplifiers
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LH500
LH1000
500 & 1000 WATT BASS AMPLIFIERS

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Summary of Contents for Hartke LH500

  • Page 1 LH500 LH1000 500 & 1000 WATT BASS AMPLIFIERS...
  • Page 2 WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. To reduce the hazard of electrical shock, do not remove cover or back. No user serviceable parts inside. Please refer all servicing to qualified personnel.The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage"...

  • Page 3: Table Of Contents

    Guided Tour - Model LH500 and LH1000 Front Panel ....... .

  • Page 4: Introduction

    4-ohm load. The Model LH1000 features a dual 500-watt power core for a total of 1000 watts of power. With that kind of power, the Models LH500 and LH1000 are EXTREMELY loud and punchy.

  • Page 5: Features

    Power to spare — The Model LH1000, a full 1000 watts delivered to a 4 ohm speaker system or 500 watts to an 8 oh m speaker system. The model LH500 delivers 500 watts to a 4 ohm speaker or 350 watts to a 8 ohm speaker.

  • Page 6: Guided Tour - Model Lh500 And Lh1000 Front Panel

    This standard, 1/4” unbalanced jack provides a high impedance (100 k Ohms) input sensitivity of 20 millivolts. 3. ACTIVE Input jack - If your bass guitar has active circuitry,* connect it to the Model LH500 and LH1000 here. This standard, 1/4” unbalanced jack provides a high impedance (100 k Ohms) input sensitivity of 60 millivolts.

  • Page 7: Guided Tour - Model Lh500 And Lh1000 Front Panel

    11. DIRECT OUT - Use this electronically balanced XLR jack to route signal from the Model LH500 and LH1000 to a professional mixing console or as a tap to a main PA system via a mic input on the console. The signal output from this jack is low impedance (100 ohm) with an output level of approximately -30 to -20 dB.

  • Page 8: Guided Tour - Model Lh1000 Rear Panel

    LH1000 from a professional outboard effects processor. 4. Fan - The fan provides vital cooling to your Model LH500 and LH1000. Make sure that it is kept free of all obstructions and that cool, fresh air is accessible at all times. Also, try to ensure that the Model LH1000 is used in a dust-free environment.

  • Page 9: Guided Tour - Lh500 Rear Panel

    LH1000 from a professional outboard effects processor. 4. Fan - The fan provides vital cooling to your Model LH500. Make sure that it is kept free of all obstructions and that cool, fresh air is accessible at all times. Also, try to ensure that the Model LH500 and LH1000 is used in a dust-free environment.

  • Page 10: Setting Up And Using The Model Lh500 And Lh1000

    “Active” input; if not, connect it to the “Passive” input). On the front panel of the Model LH500 and LH1000, set the VOLUME control to “0” (fully counterclockwise) and set BASS, MID and TREBLE to their center “0”...
  • Page 11 10. Now try out the Model LH500 and LH1000 Limiter circuitry. Activate it by pressing the Limiter switch in to the “on” position. The LIMITER LED will illuminate when the Limiter circuit is active.

  • Page 12: About Equalization

    The LH Series EQ controls allow you to alter a sound by boosting or attenuating specific frequency areas— they operate much like the bass and treble controls on your hi-fi amp, but with much greater precision.
  • Page 13 The specific EQ you will apply to your bass signal is very much dependent upon your particular instrument and personal taste and playing style. However, here are a few general suggestions: • For that super-deep reggae or Motown sound, boost the Bass EQ slightly while attenuating the MID and Treble EQ.

  • Page 14: Using Lh1000'S Bridge And Dual Parallel Modes

    Parallel mode, or Bridge mode. In Dual Parallel (BRIDGE mode switch to the left), the two amplifier channels are receiving the same input signal from the pre amp, but are operating separately, so each channel sees its own speaker load. In BRIDGE mode (Bridge mode switch to the right), the two amplifier channels work as one and therefore, a single impedance load from the con- nected speakers is presented to the amplifier.

  • Page 15: Using The Direct Output

    Using the Direct Output The LH500 and LH1000 both feature a front panel DIRECT OUTPUT connector used for interfacing to external recording and PA gear. This standard, balanced XLR connector provides a Line-level pre-EQ and pre-VOLUME output signal from the LH Series amplifier. You’ll usu- ally use this to connect the LH Series signal to a Mic-level input when interfacing with PA systems or recording mixing consoles.

  • Page 16: Cleaning The Fan Filters

    Cleaning the Fan Filters Cleaning the Fan Filters From time to time, it may become necessary to clean the fan filter. It’s a good idea to keep the fan filter clean to ensure maximum airflow, and cooling, through your LH Series amplifier. To clean the fan filters, follow these simple steps: 1/ Remove the fan filter by placing your finger in the depressed area under the fan filter frame.

  • Page 17: Specifications

    Input Sensitivity Passive Input Active Input Rated Output Power LH500 LH1000 Dual Parallel mode Bridge mode Total Harmonic Distortion Signal To Noise Ratio Equalizer Type Controls Send Output Level Return Input Level Dimensions (Both Models) Weight LH500 LH1000 100 k Ohms, 20 mv.
  • Page 18 Notes...
  • Page 20 Hartke 45 Gilpin Avenue Hauppauge, New York 11788-8816 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 631-784-2201 www.hartke.com...

This manual is also suitable for:

Lh1000

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