THE MACHINE CONFIGURATION CAN CHANGE AS PRODUCT IMPROVEMENTS ARE INCORPORATED. IF YOU OWN AN EARLIER VERSION OF THE MACHINE, THIS MANUAL MAY NOT EXACTLY DEPICT YOUR MACHINE . CONTACT CUSTOMER SERVICE IF YOU HAVE ANY QUESTIONS ABOUT DIFFERENCES. PREVIOUS VERSIONS ARE NOT AVAILABLE ONLINE. INPUT—Connect your guitar here, using a shielded instrument cable with a Vi" jack. VOLUME—This knob controls the pre-gain level. PRESENCE—This circuit provides a gradual boost in the upper frequency output for better articulation. The boost begins at 2 KHz and provides a maximum output increase of approximately 10 dB. 3 BAND EQUALIZATION—The main equalization of the Model H5524 is a classic 3-band passive network. All pass (no band cut) is attained with the controls in the full clockwise position—unlike active controls which exhibit a “flat” setting at the 12 o’clock positions. LINE OUTPUT—A line level output is provided for sending a signal from the preamp section to a mixing console for live performance or recording purposes. HEADPHONES OUTPUT—For connection to almost any headphone with a Vi" jack. CD/TAPE INPUTS—These line level inputs allow the use of a CD or tape player for practice sessions. POWER LED—The power LED illuminates when the power is ON. POWER SWITCH—Turns power ON and OFF. Caring For Your Amplifier • DO NOT remove the grounding prong to fit the plug into a two-pronged outlet! • To keep the amplifier working properly, DO NOT expose it to rain or moisture. • DO NOT pull or lift the amplifier by the power cord. • UNPLUG the amplifier before cleaning, and only clean with a damp cloth (no chemicals). ACAUTION SHOCK HAZARD! The amplifier must have a ground prong in the plug to help ensure that it is grounded. DO nOt remove this prong to fit the plug into a two-pronged outlet!...