– 12 – – 13 –
As a general rule of thumb, the -6dB position is is best for tweeters that are mounted very
close to the listener’s head, or for tweeters mounted on top of the dash-board and in the
window triangles or A-pillars.
The -3dB position is usually the setting that provides a good tonal balance for most in-
stalls, while the 0dB position leaves you with a slight excess of energy in the treble region.
Attention: The tweeter attennuation switches must both be set to identical position on
both crossovers!
After completing all the available settings for mid/woofer lowpass slope, tweeter attenua-
tion and polarity, you can mount the crossover in place and reinstall all the other panels /
factory grilles a.s.o.
Your installation is now complete and therefore ready, to be checked out.
TESTING THE INSTALLED SYSTEM
Slowly turn up the volume of your head unit, and listen for distorted sounds. If everything
appears to be okay and it just sounds right, check out the speaker balance of the left and
right side by adjusting the balance control of your headunit. Shifting the balance to the left
channel should provide you with sounds coming solely from the left speaker system, while
shifting the balance to the right should do the same for the right speakers. If anything
appears to be wrong, you must recheck the wiring of the x-overs, the amp or the mid/
woofers.
TECHNICAL SPECIFICATIONS
AC25 AC26 AC25ES AC26ES
Type Component Component Component Component
Nominal Size 5¼” (13 cm) 6½“ (16.5 cm) 5¼” (13 cm) 6½“ (16.5 cm)
Conguration / System 2-Way 2-Way 2-Way 2-Way
Peak Power Handling 140 W 160 W 120 W 140 W
Continuous Power Handling 100 W RMS 120 W RMS 80 W RMS 100 W RMS
Crossover Slope LP Mid/Woofer 6/12dB / oct. 6/12dB / oct. 6/12dB / oct. 6/12dB / oct.
Crossover Slope HP Tweeter 12dB / oct. 12dB / oct. 12dB / oct. 12dB / oct.
Crossover Frequency 3500 Hz 3500 Hz 3500 Hz 3500 Hz
Nominal Impedance 4 Ohms 4 Ohms 4 Ohms 4 Ohms
Sensitivity 90 dB 91 dB 88 dB 89 dB
Frequency Response (- 3dB) 70 Hz – 25 kHz 60 Hz–25 kHz 70 Hz – 26 kHz 60 Hz–25 kHz
Mid Woofer
Basket (EURO-DIN) 5¼” (13 cm) 6½“ (16.5 cm) 5¼” (13 cm) 6½“ (16.5 cm)
Mounting Depth 62 mm 66 mm 46 mm 50 mm
Mounting Diameter 118 mm 144 mm 118 mm 144 mm
Tweeter
Overall Diameter 52 mm 52 mm 52 mm 43 mm
Mounting Height (at surface) 31 mm 31 mm 31 mm 31 mm
Mounting Diameter (recessed) 52 mm 52 mm 52 mm 52 mm
