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15WATT HOWITZER

 

Guitar Preamp & Power Amp 

 

Congratulations on your purchase of the 

15WATT HOWITZER 

guitar amplifier! 

The 15Watt Howitzer produces an ample 15 watts but is small enough to throw in 
a bag and carry anywhere. At 15 watts, the Howitzer’s sweet sound and extreme 
portability will make it an integral part of any rig. The 15Watt Howitzer was 
designed for guitar but can handle other instruments as well. It includes a preamp 
section with GAIN, BASS, MID, and TREBLE controls to dial in your perfect sound. 
The BRIGHT switch adds a bit more sparkling highs to your output. An FX Loop, 
on the SEND/RETURN jacks, allows for effects to be placed between the 15Watt 
Howitzer’s preamp section and VOL knob. Please read this manual to get the most 
out of your 15Watt Howitzer. 

        

 

C

ONTROLS

 

 

 

 

 

 

 

 

 

 

VOL Knob

 

– Controls the volume or loudness of the amplifier. As you turn the 

VOL knob clockwise, the 15Watt Howitzer’s output gets louder. This knob acts as 
a master volume control and interacts with the GAIN knob to set the output level. 
 

GAIN Knob 

 

This knob controls the amount of gain and overdrive that is 

generated by the preamp. As you turn GAIN clockwise, the overall signal will get 
louder and start to distort. When the knob is turned fully clockwise, the sound will 
be a warm overdriven tone. WARNING: as you turn the GAIN knob up, the output 
level might increase significantly, compensate by turning down VOL. 
 

BASS Knob 

– Controls the loudness of low frequencies in the preamp section of 

the amplifier. As you turn BASS up, the low-end increases. 
 

MID Knob 

– Controls the mid frequency loudness in the preamp section of the 

amplifier. As you turn MID up, the middle frequency band increases in level. 

 

TREBLE Knob 

 

This knob controls the loudness of high frequencies in the 

preamp section of the amplifier. As you turn TREBLE up, the high-end increases. 

WARNING:

 

THE 15Watt Howitzer IS A POWER AMP, NOT AN EFFECTS PEDAL.

 

Do not connect the OUTPUT 8-16

Ω

 jack of the 15Watt Howitzer to the input of 

another amplifier, effects pedal, mixer, computer, computer interface or other 
similar device. Connect the output of the 15Watt Howitzer to an 8 -16 

Ω

 

speaker cabinet ONLY.

 

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