Power bass S-10T Guide de l'utilisateur

Autosound "S THIN" Series Subwoofer

Application & Enclosure Guide

Please read through this manual to familiarize yourself with your new speakers. Should your PowerBass

Autosound speaker components ever require service, you will need to have the original dated receipt.

S-10TD

S-12TD

S-10T

S-12T

Thank you and Congratulations

Congratulations on your decision to purchase PowerBass “S Thin” series woofers. You now own a woofer

of uncompromising design and engineering philosophy from a factory that truly believes in the relentless

pursuit of perfection. Incorporating the highest quality parts and state-of-the-art materials, these woofers

display the ultimate balance between high ﬁdelity, extreme performance and long-lasting reliability.

At Powerbass USA, Inc. we are conﬁdent you will have many years of outstanding enjoyment from your

superior WOOFER investment. For maximum performance we recommend that you have your new

PowerBass “S Thin” series Woofer installed by an Authorized PowerBass Dealer.

To learn more about PowerBass, please visit us on the World Wide Web at

http://www.powerbassusa.com

∆Warning ∆

Continuous exposure to sound pressure levels in excess of 100 dB can cause permanent hearing loss. PowerBass Autosound Speakers

are capable of producing sound pressure levels well over 170 dB. Please observe all local sound ordinances while listening to your

PowerBass Autosound system. PowerBass USA, Inc. accepts no liability for hearing loss, bodily injury, or property damage due to the

result of use or misuse of this product.

POWERBASS AUTOSOUND "S THIN" WOOFER FEATURES

Proprietary Composite Polycarbonate / Glass Fiber Basket: Provides a rigid and stable woofer

platform.

One Piece Injection Molded Cone: This design ensures low distortion bass reproduction and voice

coil alignment.

Large Roll Rubber Surrounds: Allows maximum excursion and precision bass reproduction.

2" Vented KSV Voice Coil Formers: These specially designed resin coated high temperature voice

coils ensure high power handling and precise linear excursion while maximizing thermal heat dissipation.

Perimeter Aeroventing: Aeroventing is incorporated in the basket design allowing cooler air to run over

the voice coil and keep the motor structure from overheating. Cooler woofers mean better bass!

Single and Dual 4-ohm Voice Coil: Made with pure EIW wire for multiple woofer applications and high

energy and heat transfer. This makes the voice coil highly efﬁcient, and allows you to play louder for longer.

Chrome Push Terminals: These high strength compression loaded speaker terminals ensure maximum

current and power transfer.

Optimally Designed for Small Sealed Enclosures: For tight area, high SPL applications.

WIRING GUIDELINES

It is highly recommended that you seek an authorized PowerBass dealer to properly setup, wire

and install your woofers for maximum performance.

There are multiple ways to wire your woofers depending on your ampliﬁer and system conﬁguration. The use

of multiple voice coils offers you more versatility in system conﬁguration. It is important to know the limits of

your ampliﬁer to optimize its performance. It is always better to use your subwoofer in a mono / bridged mode

if your ampliﬁer has the capabilities. There are basically four different types of wiring conﬁgurations: Series,

Parallel, Series-Parallel or Parallel-Parallel. It is possible to change the impedance or load by how the speakers

are to be wired and by the quantity of woofers used.

Parallel wiring a dual 4 ohm sub = 2 ohm

Parallel-Parallel wiring two dual 4 ohm subs = 1 ohm Series-Parallel wiring two dual 4 ohm subs = 4 ohm

NOTE: Never connect only one coil of a Dual Voice Coil (DVC) speaker. BOTH voice coils must be

connected to the ampliﬁer

DUAL VOICE COIL WIRING

PARALLEL SERIES

SERIES PARALLEL

PARALLEL-PARALLEL

Series wiring a dual 4 ohm sub = 8 ohm

Amplifier

Amplifier Amplifier

SINGLE VOICE COIL WIRING

Parallel wiring of two single 4 ohm subs = 2 ohms

Parallel wiring of four single 4 ohm subs = 1 ohms

Series/ Parallel wiring of four single

4 ohm subs = 4 ohms

Single 4 ohm woofer

Amplifier

STANDARD

PARALLEL

Amplifier

PARALLEL

Amplifier

SERIES-PARALLEL

Amplifier

INSTALLATION EXPERIENCE

Installation of PowerBass Autosound Subwoofers requires experience with a variety of mechanical proce-

dures including enclosure construction. This manual only provides general installation and operation in-

structions. If you have any reservations about your installation skills, please contact your local Authorized

PowerBass dealer for assistance.

CHOOSING A SPEAKER ENCLOSURE

The PowerBass Autosound S Thin Subwoofers are engineered to perform at their optimum level in a Sealed en-

closure. However, while not optimum, these woofers may also be used in bandpass enclosures. For maximum

performance we recommend you have your new PowerBass Autosound Subwoofer installed by an Authorized

PowerBass Autosound Dealer.

• SEALED BOX: (RECOMMENDED) A sealed or acoustic suspension enclosure is easy to build

and typically offers a smaller size enclosure and greater power handling. It has the most predict-

able frequency and phase response; the bass response will roll off slower than that of a ported de-

sign. Sealed boxes typically provide the best musical detail and deﬁnition. A well-designed sealed

enclosure will exhibit smooth frequency response with excellent sound quality and great low bass

extension. They also exhibit relatively accurate, punchy bass reproduction for most types of music.

If a sealed enclosure is too large to ﬁt into a speciﬁc area of a vehicle, it is possible to decrease the

recommended box volume by using 1.5 pounds per cubic feet of low density, high heat speciﬁc box

stufﬁng material. PowerBass recommends Fiberglass, Dacron, Poly-Fill or long ﬁber wool for stuff-

ing the enclosure. (Decreasing the box enclosure however should not exceed 20% of the

recommended size.) When using any type of box stufﬁng material be sure that the subwoofer’s

vented pole piece is clear from any obstructions, since covering the pole piece will result in loss of

bass and can possibly cause damage to your subwoofer. The most important aspect of a sealed

enclosure is to make sure that it is airtight and solid. If your enclosure has any air leaks or if the

panels vibrate or ﬂex, you will experience a loss of bass output. Using glue and some type of seal-

ant (caulk) on all seams will ensure a solid constructed box without any air leaks.

• BANDPASS ENCLOSURE: (NOT OPTIMUM) The most common band-pass enclosure is a

combination of a sealed and a vented enclosure working together (4th order or single reﬂex band-

pass system). The rear of the speaker goes into the sealed chamber while the front of the speaker

goes into the vented chamber. Because the vent produces all the sound generated from this type

of enclosure, sound quality may not be as good as a well-designed ported or sealed design. Often

the sacriﬁce for sound quality and subwoofer cone control is greater SPL output. However unlike a

sealed or vented enclosure, you can effectively increase the enclosure sensitivity with the appropri-

ate tuning choices. You can choose to design a narrow frequency band with very high sensitivity

or choose a wide frequency band with the sacriﬁce of lower sensitivity. The damping effect of the

vented chamber reduces the motion of the cone so that potentially higher sound output is achieved

without the subwoofer reaching its mechanical limits. Minor deviations from design recommenda-

tions however may result in frequency response and distortion problems.

(If you are intending to use multiple subwoofers in your system, PowerBass recommends hav-

ing separate chambers for each subwoofer if the subwoofers will be operated by two different

ampliﬁed signals. This will prevent any possible cancellation.)

TIPS TO GET THE MOST OUT OF YOUR S THIN SERIES WOOFER

Your PowerBass Autosound subwoofer has been meticulous engineered and designed to handle high

power musical reproduction. Despite their rugged construction, it is possible to damage your speaker if

they are improperly used. In general, you will hear distortion as a so-called warning before any damage

occurs. If you hear distortion in your system, immediately reduce the musical level to the point where the

sound retains its clarity.

1. All PowerBass Autosound subwoofers require an initial break-in period before it will reach optimum

performance. Like any new precision machinery, allow a minimum of several days to one week with

normal daily usage to ensure that the suspension has properly been broken-in.

2. With any dual voice coils subwoofers avoid using only one voice coil. Doing so will significantly

decrease the efficiency and power handling of the speaker.

3. Be sure you supply the speakers with enough unclipped amplifier power to drive them properly.

(More damage can be done to a speaker by under-powering and clipping your amplifier than any

other way!)

4. Where possible, run your Speakers in mono instead of stereo. Most bass is reproduced in mono so

there is less chance of any cancellation if played in mono.

5. Where possible, wire your Speakers in parallel instead of series. Bass is reproduced either way but

again there is less chance of cancellation in parallel. NOTE: Be sure the amplifier you are using is

stable to the resulting impedance of the speaker load!

6. Where possible, a separate amplifier just for your subwoofers should be used with an electronic

crossover to set the frequency range. One amplifier with passive crossovers will work (Tri-Way

Setup), but the system will do more with less stress on the amplifier by using two amps.

7. Do not block the front of your speakers. You want as much direct air coupling as possible.

8. Remember the Golden Rule “Measure twice…cut once.”

Note: The S Thin woofer basket is contructed of composite materials. Please use the en-

closed paper template if you are pre-drilling speaker mounting pilot holes--do not use

the woofer as a template.

BOX CONSTRUCTION: The material used for enclosure walls should be solid, dense and free of voids

or warps. Your enclosure should be made ¾” or 19mm material, Finland or Baltic birch type plywood is

recommended where the enclosure will be transported frequently. High-density ﬁberboard - MDF (not chip

board) can be used on permanently installed systems. Minimum of 1” (25mm) or double ¾” (1-1/2”) baf-

ﬂe is recommended on high-powered SPL applications. Corners must be strong and air tight and should

not have any air leaks or openings. Joints should be properly ﬁlled with glue that will not crack under high

stress or impact. If the integrity of the glue seal can’t be determined, hot glue or RTV caulking should be

used to seal all seams. Fiber reinforced resin may also be used to form any difﬁcult shapes. However avoid

making large panels with resin to eliminate any chances of box ﬂexing, cracking or ratting under high

pressure. Bracing made of 2 x 2” or 2 x 4” should be liberally applied either inside or outside the cabinet,

depending on whether the cabinet is to be permanently installed or portable. This principle applies to any

walls of the enclosure spanning more than 18” long. Any braces should also be liberally glued or screwed

down on edge. Edge-wise drilled, and countersunk holes through the braces can be used for #10-2 Flat-

head wood screws to avoid the use of more expensive lag bolts. The majority of strength from an enclosure

comes from the glue. When using screws be sure to pre-drill holes to avoid splitting the wood.

WARNING! The use of silicone rubber to seal in a speaker will void the Warranty! If any sealing

is needed in addition to the speaker’s gasket, use caulking cord or vinyl weather strip.

SUBWOOFER CROSSOVER SETTING

Your PowerBass subwoofers will perform best if they are used in conjuction with a subwoofer crossover of

some kind. Using a crossover will remove unwanted high frequencies and allow them to concentrate only

on bass. The two most common types of crossovers are "passive" or "active" (electronic crossovers are

active). Many ampliﬁers have a built in Low Pass (LPF) electronic crossover circuit. For optimum subwoofer

performance we recommend an initial electronic crossover setting between 80-100Hz and then tuning

the bass to your liking.

PREPARING FOR INSTALLTION

NOTE: The tools listed below may be required for basic installation.

• An electric drill with bits

• Saber, circular and jig saw

• Phillips-head and standard screwdrivers

• Wire strippers

• Crimping tool and needle-nose pliers

• Silicone sealant (for enclosures), closed cell weather-stripping (for the speakers)

INSTALLATION PRECAUTIONS

NOTE: Proceed only if you are a qualiﬁed installer otherwise; let your dealer do it.

• Always wear protective eyewear when using tools.

• Turn off all stereo and other electrical devices before you begin.

• Disconnect the (-) negative lead from your vehicle’s battery.

• Keep the speakers in the package until ﬁnal installation, and always rest it with the cone facing up.

Never use force when installing a speaker.

• Locate all fuel lines, brake lines, oil lines, and electrical cables when planning your installation.

• Check to see if there is enough clearance behind the mounting surface before drilling holes or install-

ing screws for proper speaker ventilation.

• Also make sure there’s enough front clearance for speaker cone excursion. Failure to do this could

cause the cone to vibrate against any obstructing object.

• Use a utility knife to trim away fabric from the speaker mounting hole location before drilling. It is

hard to get a good seal if you have both the carpet & subwoofer gasket between the speaker and

the enclosure.

• When running speaker wires through sheet metal, be sure to use grommets to properly insulate the

wires from metal edges.

Ce manuel convient aux modèles suivants

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