SUBWOOFER TIPS & TECHNIQUES
home theater and driven actively with a separate amplifier then the crossover function
will be handled by the AV receiver.
For most installations, whether the AEF-8LFT is
part of a distributed audio system or a home theater, we recommend a crossover
frequency of 80Hz ±20Hz.
WIRING
To achieve maximum performance from your new subwoofer(s) we strongly suggest the use
of good quality CL-2 or CL-3 rated audio cable. We recommend that the cable be at least 16
gauge or larger for runs of over 50 feet (15m) and that the cable meet your local codes and
regulations. Allow about 2½ feet (0.8m) of free cable at the speaker cut-out and sufficient
length at the other end to reach the electronics. Having to add extra cable later can be
tedious and time consuming.
Avoid bundling speaker cables parallel to electrical cables for extended lengths. Though
the impedance is low and the likelihood of interference low, this may help reduce hum
and RF interference. When securing the cable, use care not to staple or nail the electrical
conductors. Doing so could result in a short that might damage the electronics.
When connecting your speakers, make sure proper polarity (phasing) is maintained. Simply
put, this means being sure the same wire which is hooked to the positive terminal of the
amplifier has its other end hooked to the positive terminal of the speaker. It is important to
check this on all speakers. If the connections on one of the speakers are reversed, (out of
phase) the quality of the bass will be impaired.
If you have multiple subwoofers we recommend that each one be wired with its
own dedicated speaker cable. This ensures the greatest flexibility for connection
and amplification.
Multiple woofers can be wired in series, parallel, or series/parallel configurations. Please
refer to the illustrations showing the various wiring configurations on this page.
PAINTING THE GRILLES
If you will be painting your grilles then leave them in their plastic bags until needed to protect
them from dust and oil contamination.
The grilles can be painted using multiple light coats of spray paint. Do not paint the
grilles with a brush or roller. Custom color spray paints are available in different sheens
to match most surfaces. Contact us or your dealer for information. Certain types of paint
will require thinning to avoid clogging the grille’s perforations.
It is not necessary or
recommended to remove the scrim cloth from the back of the grille prior to painting.
It can’t be reapplied once removed.
Follow the directions that are supplied with your paint. In addition to the paint
supplier’s instructions we suggest the following techniques be employed to ensure the
best possible finish.
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Ensure the work area is protected from overspray and that it is clean and clear of
dust before beginning. A light mist of paint can be applied to the protected work
surface and allowed to dry before painting the grilles. This can help to keep loose dust
particles from becoming airborne while painting.
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Apply the paint to the front and edges of the grilles from several directions by either
turning the grilles or moving around the grilles while painting. This will provide more
uniform coverage.
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Begin spraying to one side of the grille and then move the steady spray over the grille
as you work your way around it. This helps to ensure that you have a steady smooth
spray that is free from large spatter that sometimes occurs when the spray is first
initiated. Stop the spray in the same way, by moving the spray away from the grille.
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Use a few light coats and allow sufficient time for the paint to dry before handling.
Angstrom Loudspeakers Corporation
1885 Clements Road, Pickering, Ontario L1W 3V4
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TEL: 905-686-0777
www.angstromloudspeakers.com
