Hartke HA5500 Owner's Manual

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Contents

Hartke HA5500 Owner's Manual Manual pdf 6 page image

4Guided Tour - HA5500 Front Panel1 32 4 5 6 7 89 101. Passive Input jack - If your bass guitar has passive circuitry, connect it to theModel 5500 here. This standard, 1/4” unbalanced jack provides a high imped-ance (100 k Ohms) input sensitivity of 20 millivolts.2. Active Input jack - If your bass guitar has active circuitry,* connect it to theModel 5500 here. This standard, 1/4” unbalanced jack provides a high imped-ance (100 k Ohms) input sensitivity of 60 millivolts.3. Pre-Amp A (Tube) control - This determines the amount of preamplificationbeing provided by special circuitry which delivers the sound of a classic tubeamplifier (this circuitry actually includes a real tube!). Note that when bothPre-Amp knobs are used at equal settings, the amplifier will be twice as loud aswhen only one is used. Avoid setting both Pre-Amp knobs on maximum (“10”),since the result will almost always be undesirable distortion.4. Pre-Amp B (Solid State) control - This determines the amount of preamplifi-cation being provided by special circuitry which delivers the sound of a solidstate amplifier. Note that when both Pre-Amp knobs are used at equal settings,the amplifier will be twice as loud as when only one is used. Avoid setting bothPre-Amp knobs on maximum (“10”), since the result will almost always beundesirable distortion.5. Compression LED - Provides a visual indicator of the status of thecompression circuitry. When lit steadily green (for example, when theCompression knob [see #6 on the next page] is set to “Off”), no compression isbeing applied. When unlit, compression is being applied to the incoming signalat a ratio of approximately 2:1. When flashing red, the compression ratio isapproaching infinity (limiting is being applied to peak signals). When lit steadilyred, the entire signal is being limited. This LED “follows” the incoming signal,changing continuously as different amounts of compression and/or limiting arebeing applied. For more information, see the “About Compression” section onpage 15 of this manual.* Bass guitars that have active circuitry normally require a battery for thecircuitry to be functional.