Precision Power PC PRO8 Owners Manual

POWERCLASS

OWNER'S MANUAL

CONTENTS

(Click on a topic to view)

Congratulations PC PRO8 Response Graphs

Introduction PC PRO10 Specifications

Sealed Enclosure PC PRO10 Response Graphs

Sealed Enclosure PC PRO12 Specifications

Ported Enclosure PC PRO12 Response Graphs

Ported Enclosure Additional Information

PC PRO8 Specifications Warranty

PC PRO8 / PRO10 / PRO12

Congratulations and thank you.....

for choosing proudly design, engineer and manufacture audio products at our facility in Phoenix, Arizona. Our award winning engineering team utilizes innovative technology to consistently deliver Absolutely State of the Art sound quality, reliability, and value. This our commitment to offer you unparalleled versatility and quality for years of dependable service and listening enjoyment.

PrecisionPower

audio epuipment. At

PrecisionPower

performance,

product reflects

S er vice

Do not attempt to service Performing exploratory surgery on your audio equipment yourself will void the warranty. Many parts of your are custom built to our specifications. Our factory parts are not made available to anyone else nor are they for sale. Our goal is to make sure that your sound as good as the day it was purchased. Contact your authorized service through

PrecisionPower

dealer about obtaining any warranty

.(See Warranty inside back cover)

products yourself.

PrecisionPower

product will always

gear

FOR YOUR RECORDS:

Model Serial Number Purchase Date

Caution!

The extended use of a high powered audio system may result in hearing loss or damage. While systems are capable of incredible accuracy, they are also designed for you to enjoy at more reasonable levels all of the sonic subtleties created by musicians. Please observe all local sound ordinances.

"Concert Level"

PrecisionPower

volumes with

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INTRODUCTION

Y our new of loudspeakers, extraordinary design achievements of the The

PowerClass PR O

PRO8, PRO10

PPI PowerClass PRO

Flat Piston subwoofer is part of an exciting line

and

PRO12

PrecisionPower

, which represent the

Engineering T eam.

Flat Piston subwoofers have been engineered

from the ground up and are constructed at our factory in Phoenix from the

PPI

finest materials available. Like all

“Absolutely State of the Art”

PRO8

The

PRO12

subwoofer incorporates a 2” voice coil, while the

incorporate a 3” voice coil. Both the 2" and 3" voice coils are edge

performance and flawless sonic quality.

products, they reflect our commitment

PRO10

and

wound onto Nomex reinforced Kapton formers, and are available in 4Ω and 8Ω versions. The voice coils are cooled and given increased mechanical damping through the use of a ferrofluid filled magnetic gap. The cooling, and therefore power handling, is further enhanced by virtue of the inverted coil geometry , together with a vented pole piece, spiders, and magnet cavity . The use of an inverted coil geometry results in a substantial reduction of distortion over conventional loudspeaker systems. Increased linearity over a large excursion is obtained by using dual matched rear suspension components together with the finest quality rubber roll surround. The most unique feature is the use of a flat diaphragm instead of a conical structure. The diaphragm is constructed from a combination of state of the art materials which include carbon fiber and Nomex honeycomb. The result is a diaphragm that is exceptionally stiff and lightweight which does not exhibit cone flex distortion or the buckling effects inherent in conventional designs. Additionally,

PrecisionPower’s

exclusive cast basket design is extremely rigid which ultimately removes any unwanted distortion due to resonance and flexing. Included in this manual are a number of sample enclosure drawings. They are by no means the only enclosures to use, but rather a starting point in the right direction. To determine the correct enclosure for your needs many factors need to be addressed (amount of power, vehicle, placement, crossover, etc.) Therefore, as always, your subwoofer be installed by an

1. Rubber roll surround

2. Aluminum trim ring

3. Carbon fiber/Nomex honeycomb diaphragm

4. Cast aluminum basket

5. Gold plated, heavy duty terminal posts

6. Magnet structure

7. Forged steel back plate

8. Magnet cavity vent

9. edge wound voice coil/ Kapton former

10. Dual spiders

11. Vented pole piece

12. Ferrofluid filled magnetic gap

Authorized PrecisionPower Dealer

PrecisionPower

recommends that

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SEALED ENCLOSURE

Building A Sealed Enclosure:

1. Build a sealed box with specified dimensions of L x W x D per

2. Using the supplied template, trace the circle template and

3. Cut the speaker hole from the face of the box with a router.

4. Place the woofer in the opening which you have cut into the

5. Install the 10-24 T-nuts (supplied) into the 7/32” holes

6. Run an appropriate length of wire into the box, leaving enough

7. Vacuum out any shavings and dust that could find it's way into

drawing. (See chart for suggested box sizes) Use 3/4” thick material (preferably medium density fiber board or equivalent) for box construction. Be sure to use wood glue and silicone to ensure your enclosure is sealed properly , as air leaks will af fect the performance of a subwoofer. (The use of an air stapler will help to achieve the nicest results for constructing the enclosure.)

mounting hole pattern for your the appropriate side of the box. (See diagram)

Use a guide or template whenever possible for a clean, accurate job; use a jig saw only if a router is not available. Drill out the holes for the T-nuts with a 7/32” drill bit.

box to check the fit. Make sure that the T-nut holes line-up.

from the backside of the face board.

length to comfortably install the wires to the terminals on the woofer before placing the speaker into its mounting hole. Use a terminal cup whenever possible.

your woofer from the inside of the box. Fill the box with polyester fiberfill. Use a ratio of 1/2lb per cubic foot.

PrecisionPower

subwoofer on

8. Apply the included foam gasket to the speaker to ensure a

9. Connect the wires to the woofer observing the proper polarity,

10. Install the woofer into the box using the provided 10-24 bolts.

11. Once the box is completed it is time to connect the speaker

12. Finally, sit back and enjoy to the incredible enhancement

sealed fit. Be sure that the mounting holes line up on the foam gasket.

positive and negative terminals. Strip away the insulation of the wire about 1/4" and install the wires into the terminal posts.

wire coming from the subwoofer enclosure to your amplifier. Check that you use the proper wire for consistent polarity, positive and negative. (Refer to amplifier owner’s manual.)

your new

PrecisionPower

subwoofer brings to your audio system.

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SEALED ENCLOSURE

Sealed speaker diagram

10-24 Allen head bolt

Subwoofer

Foam seal gasket

10-24 T-nut

Mounting hole diameter

Internal dimensions should be calculated to determine the correct box volume.

Be sure to allow for speaker displacement and extra bracing (if used).

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