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Anleitung Zusammenfassung
For example, you should not place the product on a bed, sofa, rug, or similar surface that might block the vent openings, or placed in a built-in installation, such as a bookcase or cabinet that might impede the flow of air through the ventilation openings. Grounding or Polarization - Do not defeat the grounding or polarization feature of the AC power cord. If your AC receptacle will not accept the power cord plug, contact your electrician to install a proper AC receptacle. When not in use - Unplug the power cord of the appliance from the outlet when left unused for a long period of time. To disconnect the cord, pull it out by grasping the plug. Never pull the plug out by the cord. * the appliance has been exposed to rain or moisture. * the appliance does not appear to operate normally or exhibits a marked change in performance. * the appliance has been dropped, or thé enclosure damaged. Wall or Ceiling Mounting - If your appliance can be mounted to a wall or ceiling, mount it only as recommended. AC Receptacle - Check to make sure that the AC receptacle holds the power cord plug firmly and securely. If the power cord plug is loose, contact your electrician to replace the defective and unsafe AC Foreign Objects - Be careful that foreign objects and liquids do not enter the enclosure through openings. Do not attempt to service the appliance beyond that described in the operating instructions. For all other sen/icing, refer to qualified sen/ice personnel only. ▲_ TABLE OF CONTENTS Precaution.......................................................................................i Product Description........................................................................1 Controls/Connections.....................................................................2 Footswitch.......................................................................................6 Specifications..................................................................................6 General Operation/Applications.....................................................7-11 Service/Warranty Information.........................................................12 Schematic Diagrams......................................................................13-17 Congratulations on your purchase of the BBE Model 381 Guitar Pre-amp! This two channel guitar pre-amp offers flexibility unequaled in today’s market place. With the BBE 381’s two channels, the player is able to achieve the more traditional clean and overdrive tones while leaving room to create some unique tones of his/her own. An important advantage with the BBE 381 Guitar Pre-amp is that all of the controls are front panel mounted. This allows for an instantaneous status report of all controls, at a glance. Additionally, the BBE 381 Guitar Pre-amp is equipped with both Main Outputs and Recording Outputs to increase its interfacing capabilities. So whether in the studio or on stage, the BBE 381 will indulge players of any style or caliber. The BBE 381 Guitar Pre-amp is also equipped with the following features: 1. Custom BBE circuit for increased tonal quality and intelligibility with a built-in noise suppressor. 2. Passive three band tone controls for the clean channel and active four band tone controls for the distortion channel. 3. Recording Outputs allow the user to plug directly into a mixing console or to record direct to tape and still have that full, rich, cabinet sound that the player enjoys hearing. The importance of this feature is most evident in eliminating the need to transport a speaker cabinet or the use of microphones for sound reinforcement. 4. A Stereo Effects Loop to interface the BBE 381 with the most popular of effects processors. 5. Independent channel volumes to coordinate the proper level blend between the clean and distortion channels. 6. Channel Select Footswitch to switch between the Clean and Distortion channels. The following sections will provide detailed information on all of the BBE 381’s functions. IMPORTANT Before you begin, please check the contents of this box to insure that included are: 1. The BBE 381 Guitar Pre-amp. 2. The Channel Select Footswitch. 3. A 25’ two conductor cable. 4. BBE 381 User’s manual. If any of these items are found to be missing, contact your BBE dealer from whom the unit was purchase immediately. 1 A_ CONTROLS AND CONNECTION FRONT PANEL 1. INPUT: This jack allows for the connection of the guitar to the BBE 381 pre-amp. 2. CH. 1: This “GREEN” LED illuminates when the Clean Channel is selected. CLEAN CHANNEL 3. VOLUME: This knob controls the level of the Clean Channel volume. Use this knob in conjunction with the Distortion Channel’s volume knob to achieve the desired balance. 4. BASS: This control adjusts the amount of low frequency content, shelved at 80Hz, within the channel. Turning the knob to its maximum position (fully clockwise) boosts the low frequencies +10dBu. Turning the knob to th...