The text below is copied verbatim from
this document.
Edit: the original document didn't list the 6-speaker setup, only the differences between the two 10-speaker variants it seems...
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10 speaker setup (HiFi):
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Low-range speakers (woofers):
The front woofers (low-range speakers) are mounted at the bottom in the A-pillars on the
left and right. The woofers are arranged transversely with respect to forward direction.
The resonance volume is approx.10 l and utilizes a part of the sill area.
Rear woofers are additionally installed in the partition behind the seats.
High-range speakers (tweeters)
The tweeter has a diameter of 26 mm and a fabric cap or calotte. The maximum load
capacity is 25 W. The tweeter (high-range speaker) covers a frequency range from 4000 Hz
to 20,000 Hz. The tweeter is connected to the woofer.
The frequency range of the high-range speaker is set by means of a capacitor.
The tweeter (high-range speaker) is located in a panel mounted in the mirror triangle.
The output direction of the tweeter is directed at the head area of the occupant opposite.
The tweeter (high-range speaker) is based on a sealed design.
Mid-range speakers
The mid-range speakers have a diameter of 100 mm and a paper cone. The maximum load
capacity is 25 W. The mid-range speaker covers a frequency range from 100 Hz to 15,000
Hz. The front and rear mid-range speakers are of identical design.
The front mid-range speakers are fitted in the doors. The rear mid-range speakers are
mounted behind the seats. The front mid-range speakers emit sound transversely with
respect to forward direction. The mid-range speakers utilize the resonance volume of the
doors. The output of the rear mid-range speakers is aligned in forward direction. The resonance
volume is approx. 2 l.
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10 speaker setup (Top-HiFi / Carver / Logic 7):
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Front low-range speaker (woofer)
The woofer has a diameter of 160 mm and a paper cone. The maximum load capacity is
50 W. The woofers (low-range speakers) cover a frequency range from 50 Hz to 500 Hz.
The front woofers (low-range speakers) are mounted at the bottom in the A-pillars on the
left and right.
High-range speakers (tweeters)
The tweeter has a diameter of 26 mm and a fabric cap or calotte. The maximum load
capacity is 25 W. The tweeter (high-range speaker) covers a frequency range from 4000 Hz
to 20,000 Hz.
The frequency range of the high-range speaker is set by means of a capacitor.
The tweeter (high-range speaker) is located in a panel mounted in the mirror triangle.
The output direction of the tweeter is directed at the head area of the occupant opposite.
The tweeter (high-range speaker) is based on a sealed design.
Mid-range speaker
The mid-range speaker has a diameter of 100 mm and an aluminum cone. The maximum
load capacity is 50 W. The mid-range speaker covers a frequency range from 100 Hz to
10,000 Hz. The front and rear mid-range speakers are identical.
The front mid-range speakers are fitted in the doors. The rear mid-range speakers are
installed in the partition behind the seats.
Carver woofers (low-range speakers), rear
The Carver woofers have a diameter of 160 mm and a paper cone in Carver technology.
The maximum load capacity is 100 W. The Carver woofers cover a frequency range from
30 Hz to 150 Hz.
The rear Carver woofers are accommodated in the partition behind the seats. The resonance
volume is approx.10 l.