Hartke LX5500 Owner'S Manual Download Page 2

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Important Safety Information

WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
WARNING: The mains plug/appliance coupler is used as disconnect device, the disconnect device 
shall remain readily operable. 

Protective earthing terminal. The apparatus should be connected to a mains socket outlet with 
a protective earthing connection. 
Voltage selector: Used to adjust the input rating (100-120Vac 50/60Hz and 220-240Vac 

50/60Hz), please just insert the mains power plug into the socket-outlet with voltage within the 
setting of the selector. The current ratings of mains fuse link are different for each input rating (see 
marking for details), and the installed mains fuse link matches the input rating of the voltage selector 
during factory assembly line production, please ask a qualified personnel to help you replace the 
mains fuse link before you adjust the voltage selector.

FCC Notice

This device complies with part 15 of the FCC Rules. Operation is subject to the following two 
conditions: (1)this device may not cause harmful interference,and (2)this device must accept any 
interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void 
the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable 
protection against harmful interference in a residential installation. This equipment generates, 
uses and can radiate radio frequency energy and, if not installed and used in accordance with 
the instructions, may cause harmful interference to radio communications. However, there is no 
guarantee that interference will not occur in a particular installation. If this equipment does cause 
harmful interference to radio or television reception, which can be determined by turning the 
equipment off and on, the user is encouraged to try to correct the interference by one or more of 
the following measures:

• 

Reorient or relocate the receiving antenna.

• 

Increase the separation between the equipment and receiver.

• 

Connect the equipment into an outlet on a circuit different from that to which the receiver is 
connected.

• 

Consult the dealer or an experienced radio/TV technician for help.

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.

The exclamation point within an equilateral triangle is intended to alert the user 

to the presence of important operating and maintenance instructions in the 

literature accompanying the appliance.

ATTENTION

RISQUE DE CHOC ÉLECTRONIQUE - 

NE PAS OUVRIR

 If you want to dispose this product, do not mix it with general household waste. There is a 
separate collection system for used electronic products in accordance with legislation that 
requires proper treatment, recovery and recycling.
Private household in the 28 member states of the EU, in Switzerland and Norway may 
return their used electronic products free of charge to designated collection facilities or to 

a retailer (if you purchase a similar new one).
For Countries not mentioned above, please contact your local authorities for a correct method of 
disposal.
By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery 
and recycling and thus prevent potential negative effects on the environment and human health.

Summary of Contents for LX5500

Page 1: ...Owner s Manual ...

Page 2: ...tions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reori...

Page 3: ...Service is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 This appliance shall not be exposed to dripping or splashing water and that no object filled with liquid such as vases shall be placed o...

Page 4: ...Direct Output and an FX Loop plus the ability to add footswitches that control features like Brite and Overdrive You ll find our LX5500 LX8500 the ideal choice for every performance situation from the studio to the stage In these pages you ll find descriptions of the many features of the LX Series bass amplifier as well as instructions for setting up and using the amplifier You ll also find a regi...

Page 5: ... lights around the knob will flash red during signal peaks 6 BRITE Switch Turns on the BRITE circuit which adds a preset EQ curve to enhance the bass instrument s high frequency response This backlit switch will light red when engaged LX8500 s footswitch option can turn this feature on lit red and off not lit 7 BASS Knob As part of a passive tone stack EQ this control is used to adjust the low fre...

Page 6: ...o use the SEND jack to route signal to a professional mixer or recording device 6 FOOTSWITCH Jacks LX8500 only Connect a two button footswitch terminating to a 1 4 TRS plug Tip DRIVE FX ring Tip BRITE ring FREQUENCY to one or both of these jacks to allow you to turn on or off OVERDRIVE FX and FREQUENCY BRITE features of the LX preamp 7 SPEAKER OUTPUT Use these outputs to connect speakers to the am...

Page 7: ... set the EQ knobs to the 12 o clock position 5 Press the Power switch on the rear panel to turn on the amplifier 6 Set the output of your bass to its maximum level Then while playing slowly turn the LX amplifier s GAIN control up until the desired level is reached If you hear distortion even at a low MASTER setting lower the GAIN control or back off the output of your bass If the problem persists ...

Page 8: ...ng the speakers or the amplifier in this way Typically amplifier speaker output jacks and speaker cabinet input jacks are parallel connections and will follow the rules described in this section When speakers are connected in parallel the impedance is reduced The formula to calculate the total impedance of your speaker system is 1 Rt 1 R1 1 R2 1 R3 1 Rn Where R is the impedance of a speaker cabine...

Page 9: ...ful when playing fast staccato passages as it will cause all the notes to sound at the same level even if the signal is above the threshold level The LX5500 LX8500 provide front panel compression lights that visually indicate when the audio signal crosses the threshold level and activates the compressor circuit When lit white no compression is being applied When the indicator lights red compressio...

Page 10: ...ze the effect of the EQ curve that best complements your particular bass instrument As the SHAPE knob is rotated clockwise the depth of the notch increases Moving the FREQUENCY control clockwise causes the notch filter to be applied to higher frequencies while moving the knob counterclockwise causes it to be applied to lower frequencies In addition to the EQ knobs the LX amps also includes a BRITE...

Page 11: ...k EQ Bass 8 14dB 80Hz relative to 12 o clock Shape 11 3dB relative to 12 o clock Frequency 200Hz 800Hz Treble 5 20dB 6kHz relative to 12 o clock FX Loop Send 200Ω impedance balanced FX Loop Return 20kΩ balanced 5 5dBu for Rated Output Power Tuner Output 100Ω unbalanced Direct Output 210Ω balanced Stereo Aux Input 3kΩ unbalanced 10dBV Headphones 80mW max 32Ω Dimensions LX8500 14 x 12 x 3 355mm x 30...

Page 12: ...Hartke 278 B Duffy Ave Hicksville New York 11801 Phone 1 800 372 6766 www hartke com Follow us hartkesystems hartke hartkesystems ...

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