User manual BEHRINGER ACX1000

[. . . ] ACX1000 User's manual Version 1. 3 June 2006 ULTRACOUSTIC ULTRACOUSTIC ACX1000 IMPORTANT SAFETY INSTRUCTIONS DETAILED SAFETY INSTRUCTIONS: 1) Read these instructions. CAUTION: To reduce the risk of electric shock, do not remove the top cover (or the rear section). No user serviceable parts inside; refer servicing to qualified personnel. 8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. [. . . ] Finally, the TREBLE control governs the microphone/line channel's high frequency gain. 2. CONTROL ELEMENTS 7 ULTRACOUSTIC ACX1000 With the ENHANCER control you can add treble frequencies to the microphone/line signal, thus improving the audio signal's power and transparency. The FEEDBACK 1 control adjusts a notch filter that allows you to suppress feedback frequencies or other forms of interference. To detect and suppress interference frequencies, please turn the FEEDBACK 1 control slowly. The FEEDBACK 2 control determines the frequency of a second notch filter, ranging from 1. 5 kHz through 9. 5 kHz. Use the EFFECT control to determine the intensity of the effect selected on the effects module (microphone/line channel). The WARMTH control adjusts the ULTRACOUSTIC's tube emulator circuit. The more you turn this control to the right, the more upper harmonics are added to the signals on the instrument or microphone/line channels, which results in a sound of unobtrusive brilliance with improved power and transparency. Use this CONTROL INDICATOR to assess the amount of upper harmonics added with the WARMTH control. To achieve the maximum tube emulation effect, both channels should be set to correct levels. The MASTER control determines the overall volume level of your ULTRACOUSTIC. The AUX input on the rear of your ACX1000 can be muted with the MUTE switch. The AUX LEVEL control in the master section adjusts the volume level of the AUX signal (e. g. drum computer, playback) fed in via the AUX IN or TAPE IN jacks on the rear of the ULTRACOUSTIC. Your ACX1000 features an on-board effects module that produces 23 different types of effects comprising 99 effect variations plus associated program numbers. Use the table printed on the effects module to locate the various groups of effects and associated program numbers. When you press the POWER switch on the rear of the unit, the POWER LED lights up. Be sure to properly connect your ULTRACOUSTIC to the mains before (see chapter 3 "INSTALLATION"). Use the four PRESET buttons to assign an effects program to one of the PRESET buttons and recall it from there. To save a preset selected with the PROGRAM control, simply press one of the four PRESET buttons for about 2 seconds, until its LED lights up. The mix of signals adjusted with the EFFECT control will of course be stored as well. Then, select a MIDI channel with the PROGRAM control (1 through 16, "on" = Omni, "OF" = inactive). The INSTRUMENT CLIP LED lights up as soon as the effects module starts distorting. [. . . ] damages/defects caused by force majeure or any other condition that is beyond the control of BEHRINGER. Any repair or opening of the unit carried out by unauthorized personnel (user included) will void the warranty. If an inspection of the product by BEHRINGER shows that the defect in question is not covered by the warranty, the inspection costs are payable by the customer. Products which do not meet the terms of this warranty will be repaired exclusively at the buyer's expense. [. . . ]