SP-S24C Component System
SP-S25C Component System
SP-S26C Component System
Thank you for purchasing this SPECTRON loudspeaker system. Please read and study this manual care-
fully before attempting the installation of your new SPECTRON component system!
General Mounting and Installation Hints
■ Choose a location where the woofer and the tweeter can be mounted close to each other.
■ Make sure the tweeters are mounted in a place where they are obstructed as little as possible.
■ The position where the mid/woofer will be mounted must be level in order to provide a tight seal.
■ Check behind the chosen mounting locations to make sure that there are no obstructions in the way,
e.g. window tracks, electrical wiring, gas tank etc.
■ Use high-quality speaker cable with a cross-section of at least 1,5 mm2 to connect the crossover unit
to the power amplifier or to the head-unit.
■ Before mounting the crossover, check out the different tweeter attenuation levels by setting the
jumper on the crossovers printed circuit board.
■ Your component system needs some time to “break in”. Especially the mid/woofer speaker units will
need some hours before the optimum sound quality is achieved.
■ The high-pass crossover frequency should preferably be set in between 120 to 200Hz for the
SP-S24C, 70 to 110 Hz for the SP-S25C and 60 to 90 Hz for the SP-S26C respectively.
Installing the Tweeter
First of all, find a good location where to install the tweeters. Cut the mounting hole, the exact cutout
diameter is 40 mm. Check the clearance behind the surface, before you start to cut the hole!
The assembled surface mount tweeter unit needs approx. 16 mm installation depth/clearance, to be
mounted properly. Insert the main surface housing adapter into the cutout, insert the tweeter into the
housing and lock the bottom plate by turning it clockwise. Then push the counter ring over the tweeter
housing to fix the housing on the mounting material.
Installing the Mid/Woofer
The EURO-DIN frame woofers allow easy replacement of the factory installed speaker systems. Their
frame/bolt hole configuration is made to match perfectly with European and Asian cars factory speaker
cut-outs.
For best bass performance, the mid/woofers must be mounted on a solid background, providing an
airtight and perfect fit.
If you intend to use the speaker grilles provided, remove the metal grille. Then mount the mid/woofer
on top of the plastic ring, finally pushing the metal mesh grille top back in place.
Mounting the Crossover
The crossover can be mounted in any location inside the vehicle. Stay away from places that could lead
to excessive exposure to dirt, moisture or heat.
Double check the connection of all the speaker wires! They must be connected in-phase, that is positive
(+) is connected to positive (+), and negative (-) is connected to negative (-). If one of the speakers is
connected with reversed polarity (out of phase) to the crossover, the result could be low bass output
or/and a dislocated soundstage. However, it is advisable to reversely connect both main tweeter wires
to the crossover unit and check the sonic result by a short listening test. Depending on the distance of
mid/woofer to tweeter the overall sound quality and the soundstage might benefit from reversed
polarity connection of both tweeter units.
Tweeter Level Attenuation
A slide switch allows for three tweeter attenuation levels! The slide switch is located on the printed
circuit board of the crossover unit. The tweeter attenuation slide switch should be used, to fine tune the
treble balance of your component system, since the intensity of the high frequency reproduction
depends strongly on the tweeter mounting location.
It is highly recommended to listen to all three attenuation options, to obtain the most pleasing treble
balance in your car.
Warranty Limitations
This warranty does not cover any damage due to:
1. Unauthorized or unapproved installation, incorrect audio or mains connection(s).
2. Exposure to excessive humidity, fluids, sun rays or excessive dirt or dust.
3. Accidents or abuse, unauthorized repair attempts and modifications not explicitly authorized
by the manufacturer.
This warranty is limited to the repair or the replacement of the defective product at the manufacturer’s option
and does not include any other form of damage, whether incidental, consequential or otherwise. The
warranty does not cover any transport costs or damages caused by transport or shipment of the product.
Installation
AMPLIFIER
WOOFER
X-OVER
TWEETER
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SPECTRON, Bohrturmweg 1 · CH-5330 Bad Zurzach · Switzerland · Web: www.acr.eu
Phone (++41) (0) 56/269 64 64 · Fax (++41) (0) 56/269 64 65
