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Jumper position on crossover switchboard (see figure x, No.1 / bold is default position):
• J3:
A-B = Close = Tweeter SPL-Level -12dB
„Reference“ frequency reponse gliding -2dB per octave
Recommended with installation of the tweeters directly in
the listening axis and/or ear proximity, e.g., A- or B-pillar,
front instrument panel area with strong windshield
reflection, or rear installation in direct proximity of the back window
• J4:
A-B = Close = Tweeter SPL-Level -6dB
„Reference“ frequency reponse gliding -2dB per octave
Recommended with installation of the tweeters directly in
the listening axis and/or ear proximity, e.g., A- or B-pillar,
front instrument panel area with strong windshield
reflection, or rear installation in direct proximity of the back window
• J5:
A-B = Close = Tweeter SPL-Level -8dB
„Reference“ frequency reponse gliding -2dB per octave
Recommended with installation of the tweeters directly in
the listening axis and/or ear proximity, e.g., A- or B-pillar,
front instrument panel area with strong windshield
reflection, or rear installation in direct proximity of the back window.
• J6:
A-B
= Close = Tweeter SPL-Level 0dB = linear
Recommended with installation of the tweeters outside of the
direct listening axis, e.g., lower door installation, floor
space installation, rear installation next to head rests, or
with heavily padded vehicle interiors with strong high
frequency sound absorption.
• J7:
A-B = Close = Tweeter full SPL-Level = +6 dB
Recommended for kick panel operation in floor space.
• J1:
A-B
= Close = High pass phase correction “OFF”
B-C = Close = High pass phase correction “ON”
J1 should be in A-B position if tweeter is mounted in axis
(e.g. on dashboard)
J1 should be in B-C position if tweeter is out of axis and distance between tweeter and woofer is large (e.g.
a-pillar installation)