background image

w w w . A c o u s t i c A m p l i f i c a t i o n . c o m

U U

FRONT PANEL

 

 

1.

 

 

INPUTS

 

– combination 

¼

” (2-conductor instrument cable) or XLR (3 or 4-conductor microphone) 

2.

 

 

VOLUME CONTROLS 

–  these adjust the overall loudness of the corresponding input. If your acoustic instrument has a preamp, you 

should set the Volume control on your instrument to about half volume. You can then adjust the volume to your normal playing 
level and still have room to increase or decrease your volume as needed from the instrument.

3.

 

PHANTOM POWER (+48V) 

–  this switch enables a +48 volt DC send on PIN 1 of an XLR cable to power condenser microphones.

4.

 

  

EQUALIZATION

 

a.   LOW 

– set to boost (15 dB) or cut (-15 dB) frequencies at 80 Hz. Controls the lowest fundamental frequencies to enhance the 

warmth and deep, full tones of your acoustic instrument.

 

b.   MIDRANGE

 

– set to boost (15 dB) or cut (-15 dB) adjustable from 500 Hz to 1.2 kHz. Allows you to control the definition and voice of 

your acoustic instrument. 

         

  

1.  FREQUENCY – this adjusts the center frequency for the MIDRANGE EQ control above: you can sweep between 500Hz and 1.2kHz. 

Moving the midrange frequency and either cutting or boosting this frequency will give you maximum control over the body 
of your tone. It also allows you to control the definition and voice of your acoustic instrument or vocals.

 

c.   HIGH 

– set to boost (15 dB) or cut (-15 dB) frequencies at 10 kHz. Increasing this will enhance the clarity and brightness of your 

acoustic instrument.

5.

 

 

 

Digital effects 

–  

  • UP/DOWN soft buttons scroll between programs, select effect types or parameter values
  • Press UP/DOWN buttons together to activate the tuner. Press any button to exit.
  • SELECT button scrolls through individual effects within a program 
  • ON/OFF button turns an individual effect on or off within a program
  • PARAM (parameter) button pages through the parameters of an effect 
   

- UP/DOWN buttons change the parameter value

3

2

1

4

5

6

7 8

9

Summary of Contents for A40

Page 1: ...w w w A c o u s t i c A m p l i f i c a t i o n c o m USER SMANUAL 40 WATT ACOUSTIC INSTRUMENT AMP ...

Page 2: ...l installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determi...

Page 3: ...r cord or plug damage due to liquids spilled or objects dropped inside the unit dropping the unit or anything else that interrupts normal use of the unit 16 WARNING To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture 17 When the MAINS plug or an appliance coupler is used as the disconnect device the disconnect device shall remain readily operable 18 Protec...

Page 4: ...nputs for use with instruments or vocals each with separate volume 8 coaxial design studio monitor style speaker for extended frequency response Ported cabinet design for extended bass response 3 Band EQ with sweepable mid range for more tonal flexibility Full function digital effects with editable parameters and LCD readout Auxiliary Bluetooth connectivity play backing tracks directly from your m...

Page 5: ...Never apply excessive force to any parts Unplug cables by gripping plugs firmly Do not pull on cables Physical shocks caused by dropping or bumping can result in serious damage CLEANING Clean with a dry soft cloth A slightly damp cloth may be used to remove stubborn grime and dirt Never use cleaners such as alcohol or thinner ELECTRICAL INTERFERENCE The A40 contains electronic circuitry that may c...

Page 6: ...adjustable from 500 Hz to 1 2 kHz Allows you to control the definition and voice of your acoustic instrument 1 FREQUENCY this adjusts the center frequency for the MIDRANGE EQ control above you can sweep between 500Hz and 1 2kHz Moving the midrange frequency and either cutting or boosting this frequency will give you maximum control over the body of your tone It also allows you to control the defin...

Page 7: ...ayback 8 HEADPHONE this 1 8 3 conductor jack is for plugging in headphones When used it will disconnect the internal speaker 9 POWER this indicator light will illuminate when the rear panel power switch is depressed DSP PROGRAM PRESETS Title Effects Included 1 Dry No EFX None 2 Short Room Short reverb 3 Small Room Small room reverb 4 Medium Room Mid size room reverb with early reflections 5 Large ...

Page 8: ...tings in POST setting the direct signal is effected by the EQ settings b DIRECTOUTPUTLEVEL this adjusts the overall level of the direct output c DIRECTOUTPUT connect a standard XLR balanced cable from this jack to provide a line level signal to your PA system powered speaker or other powered output device d GROUNDLIFT this switch disconnects pin 1 on the XLR jack which is connected to the shield i...

Reviews: