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Фрагмент инструкции
MEMO What’s FFP (Feed Forward Processing) Technology? FFP is system control technology that optimizes the performance of the amp, speakers, and cabinet characteristics according to the signals being input, based on results of analyses of the operation and behavior of each section of existing amp systems. MEMO What’s COSM (Composite Object Sound Modeling) Technology? Technology that uses different means to create a virtual reconstruction of physical structures, materials, and so on that actually exist is called modeling technology. COSM is proprietary technology from Roland that combines several kinds of sound-modeling technology to create even newer sounds. To Use the DB-900 Like a Conventional Bass Amp When you want to operate the DB-900 like a regular bass amp, whereby settings are controlled directly with the knobs, press the MANUAL button, illuminating its indicator. Button Names and Functions Button Names and Functions Front panel 1 Controls that can be stored in memory 2 3456 7 1. Control Buttons You can store the settings of the controls in memory A or memory B. For more information, take a look at “The Memory Function” (p. 12). MANUAL Button To play sounds in a way that faithfully reflects the control settings, press this button to make the indicator light up (the Manual function). You can use a foot switch to switch the Manual function on and off. MEMORY A and MEMORY B Buttons Use these to call up and store knob settings. The indicators light when the buttons are pressed. You can use a foot switch to switch between memory A and memory B. WRITE Button Press this to store the control settings in memory. 2. Input Jacks HIGH Jack LOW Jack Connect the bass guitar to the corresponding jack according to the bass guitar’s output level. Do not connect to the HIGH and LOW jacks NOTE simultaneously. This may result in damage to the equipment. 3. Amplifier Thanks to the modeling function using COSM technology, you can make the settings for a variety of amp sounds. TYPE Switch This selects three amp types: solid state, tube, and tube drive. GAIN Knob This adjusts the input gain. You can make the settings for a wide range of sounds, from clean to overdrive. VOLUME Knob These adjust the volume level. When toggling between memory A and memory B as you use the amp, the VOLUME knob is handy for adjusting the volume level between the two. COMPRESSION Knob This adjusts the compression effect. 4. Shape SHAPE Switch Setting this switch to ON allows you to modify the tonal characteristics of each amp type selected with the TYPE switch. 5. Equalizer The DB-900 comes with a three-band equalizer. You can change midrange frequencies, so it’s possible to create a wide variety of sounds. BASS Knob This adjusts the tone of the bass range. MIDDLE LEVEL Knob This adjusts the tone of the middle range. MIDDLE FREQUENCY Knob This adjusts the frequency of the middle range. TREBLE Knob This adjusts the tone of the treble range. Button Names and Functions 6. D-Chorus Thanks to dynamic band-splitting processing according to input signals, you can perform with a chorus effect with no loss in bass-range response. INTENSITY Knob This adjusts the amount of chorus that’s applied. When you don’t want to use a chorus effect, set this to “Off” (the indicator goes dark). If you want to obtain a longer pre-delay effect, set this to a value of 7 or more. You can use a foot switch to toggle the chorus effect on and off. Note that this is not possible when the INTENSITY knob is off. 7. Master POWER INJECTION Indicator This indicator shows the power-boosting effect of DSP. The color of the indicator changes from green to orange according to the effect. This indicator only applies to the speaker output. MASTER Knob This adjusts the volume level of the unit’s speaker or the headphones. Rear panel NOTE The setting of the MASTER knob is not stored in memory A or memory B. PHONES Jack This is for connecting headphones. Tonal correction is performed in order to produce the optimal headphones sound. When headphones are connected, no sound is output to the unit’s speaker. Output to the headphones is monaural. NOTENOTE Before plugging in or unplugging headphones, be sure NOTE to adjust the MASTER knob to 0. POWER Switch This switches the power on and off. The pilot light illuminates when the power is on. NOTE Before turning the power on or off, be sure to put the MASTER knob at 0. 891011 8. Balanced DI Balanced DI Connector This is an XLR-type, superior sound quality, balanced DI connector for output of the direct sound of the bass guitar. GND LIFT Switch This selects whether the balanced DI connector and the XLR- type Line Out jack are grounded or not. If hum occurs, try changing a switch position 2 1: GND (earth) 1 2: HOT 3: COLD 3 9. Insert These jacks are for connecting external effects and the like. SEND Jack This is the output jack that connects to the input on the external effects unit. RETURN Jack This jack is for input of the returned sound from the ...