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Connect the speaker wires to the respective output of the audio amplifier (left output to left speaker, etc.). Connect the opposite end of the
speaker wires to the rear panel Speaker Terminals, matching the polarity of the amplifier output to the speaker input, + to + (red) and – to
– (black). DIAGRAM 4 shows the F400 rear panel connector panel.
CONTOUR SWITCH SETTINGS
The F400 front panel Contour Switches provide subtle frequency adjustment control, allowing a boost or cut of the treble and bass response
by ±3dB. Determine through listening or test procedures if the F400 speakers require this adjustment.
To adjust the Contour Switches:
1. Carefully remove the F400 grill cover.
2. Using the Contour Switches shown in DIAGRAM 5, make the following adjustments for the desired result.
• Add bass: Move the bass switch to the +3 position.
• Lower bass: Move the bass switch to the -3 position.
• Add treble: Move the treble switch to the +3 position.
• Lower treble: Move the treble switch to the -3 position.
3
Bass Contour Switch
Treble Contour Switch
DIAGRAM 5
Contour Switches
Push Tweeter Here
DIAGRAM 6
Tweeter Adjustment
PIVOTING TWEETER ADJUSTMENT
The pivoting tweeters can be pointed toward the listening position for optimal directivity. If you have mounted the F400 Speakers off-axis
from the listener’s ear level, you may gently move the tweeter position to compensate for the loss of directivity. Follow the instructions in
DIAGRAM 6, below.
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F400
DIAGRAM 4
Rear Panel Speaker Terminals