PF-350 / PF-500 Bass Guitar Amplifier

PF-500 Front Panel continued

 

mute

 

 

 

 

ultra hi

 

 

 

1

2

3

4

5

 

 

 

 

 

 

PF 500

peak

 

thresh

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fault

audio phones

mute

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in

 

-15dB

0

10

0

10

ultra lo

0

10

0

10

 

 

 

 

0

10

0

10

0

10

 

input

compression

 

gain

bass

 

midrange frequency

treble

fx mix

volume

 

 

 

 

 

 

1

2

3 45

6

7

8 9

10

11

12

13

14

15

1617 18

11.MIDRANGE: Use this to adjust the midrange frequency level of the amplifier. This provides up to 10 dB of boost, or –20 dB of cut at the frequency selected. The midrange frequency output is flat at the center position. Rotate the control counter clockwise for a “contoured” sound (more distant, less midrange output) or clockwise for a sound which really cuts through.

12.FREQUENCY: This control allows you to select the center frequency for the mid- range control [11], giving you a choice of five “voices” for the midrange. The numbers correspond to the following center frequencies: 1=220 Hz, 2=450 Hz, 3=800 Hz, 4=1.6 kHz, 5=3 kHz.

13.TREBLE: Use this to adjust the high frequency level of the amplifier. This provides up to 15 dB of boost, or –20 dB of cut at 4 kHz. The high frequency output is flat at the center position.

14.FX MIX: This control varies the mix between the direct (dry) signal and the effects (wet) when the effects loop is used. Fully counter-clockwise results in all direct signal (no effect) and fully clockwise adds all effect with no direct signal. The fully clockwise position is equivalent to a series effects loop and should be used with such devices as limiters and equalizers.

12

15.VOLUME: Use this to control the

overall output level. It affects the preamp level to speaker and phone outputs. Use it wisely, and turn it down when making connections, putting on headphones, or trying something new.

16.FAULT LED: This LED illuminates amber if the amp thermals and shuts down or develops other fault conditions. See “Fault/Thermal Considerations” on page 18 for more information.

17.AUDIO IN: The audio output from line- level sources, such as an iPod®, MP3, or CD player, can connect to this

1/8" TRS stereo input. The incoming audio is mixed with the preamp signals, so you can play along to a practice track, as you listen with headphones. (The audio coming in here only plays in the headphones, and appears nowhere else. It does not affect the signal fed to the audio input.)