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CONTENTS
(Click on a topic to view)
Congratulations
Introduction
Sealed Enclosure
Sealed Enclosure
Ported Enclosure
Ported Enclosure
PC PRO8 Specifications
PC PRO8 Response Graphs
PC PRO10 Specifications
PC PRO10 Response Graphs
PC PRO12 Specifications
PC PRO12 Response Graphs
Additional Information
Warranty
Congratulations and thank you.....
for choosing PrecisionPower audio epuipment. At PrecisionPower we 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 TM performance, sound quality, reliability, and value. This PrecisionPower product reflects our commitment to offer you unparalleled versatility and quality for years of dependable service and listening enjoyment.
S ervice
Do not attempt to service PrecisionPower products yourself.
Performing exploratory surgery on your audio equipment yourself will void the warranty. Many parts of your PrecisionPower gear 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 PrecisionPower product will always sound as good as the day it was purchased. Contact your authorized PrecisionPower dealer about obtaining any warranty service through PrecisionPower.(See Warranty inside back cover)
F O R YO U R R E C O R D S :
M o d e l
Serial Number
Purchase Date
C aution!
The extended use of a high powered audio system may result in hearing loss or damage. While PrecisionPower systems are capable of "Concert Level" volumes with 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.
INTRODUCTION
Your new PowerClass PRO Flat Piston subwoofer is part of an exciting line of loudspeakers, PRO8, PRO10 and PRO12, which represent the extraordinary design achievements of the PrecisionPower Engineering Team.
The PPI PowerClass PRO Flat Piston subwoofers have been engineered from the ground up and are constructed at our factory in Phoenix from the finest materials available. Like all PPI products, they reflect our commitment to “Absolutely State of the Art” performance and flawless sonic quality.
The PRO8 subwoofer incorporates a 2” voice coil, while the PRO10 and
PRO12 incorporate a 3” voice coil. Both the 2" and 3" voice coils are edge wound onto Nomex reinforced Kapton formers, and are available in 4
Ω
and
8
Ω
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, PrecisionPower recommends that your subwoofer be installed by an Authorized PrecisionPower Dealer.
1
2
3
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
8 9 10 11
4
5
6
7
12
SEALED ENCLOSURE
Building A Sealed Enclosure:
1.
Build a sealed box with specified dimensions of L x W x D per 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 affect the performance of a subwoofer. (The use of an air stapler will help to achieve the nicest results for constructing the enclosure.)
2.
Using the supplied template, trace the circle template and mounting hole pattern for your PrecisionPower subwoofer on the appropriate side of the box. (See diagram)
3.
Cut the speaker hole from the face of the box with a router.
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.
4.
Place the woofer in the opening which you have cut into the box to check the fit. Make sure that the T-nut holes line-up.
5.
Install the 10-24 T-nuts (supplied) into the 7/32” holes from the backside of the face board.
6.
Run an appropriate length of wire into the box, leaving enough 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.
7.
Vacuum out any shavings and dust that could find it's way into your woofer from the inside of the box. Fill the box with polyester fiberfill. Use a ratio of 1/2lb per cubic foot.
8.
Apply the included foam gasket to the speaker to ensure a sealed fit. Be sure that the mounting holes line up on the foam gasket.
9.
Connect the wires to the woofer observing the proper polarity, positive and negative terminals. Strip away the insulation of the wire about 1/4" and install the wires into the terminal posts.
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 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.)
12.
Finally, sit back and enjoy to the incredible enhancement your new PrecisionPower subwoofer brings to your audio system.
2
SEALED ENCLOSURE
Sealed speaker diagram
10-24 T-nut
10-24 Allen head bolt
Subwoofer
Foam seal gasket
Mounting hole diameter
D
L W
Internal dimensions should be calculated to determine the correct box volume.
Be sure to allow for speaker displacement and extra bracing (if used).
3
PORTED ENCLOSURE
Building A Ported Enclosure:
1.
Build a sealed box with internal dimensions of LxWxD as specified for your woofer. 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 affect the performance of a subwoofer. (The use of an air stapler will help to achieve the nicest results for constructing the enclosure.)
2.
Using the supplied template, trace the appropriate circle and mounting hole pattern for your PrecisionPower subwoofer on the proper side for mounting the woofer. Be sure to offset the woofer to one side to allow for the port to fit comfortably.(See Diagram)
3.
Cut the speaker hole out of the box with a router. 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 mounting holes with a 7/32” drillbit.
4.
Locate the port material which you are going to use. Trace the pattern of the appropriate hole needed for the port, then cut the hole out. When installing the port, make sure you have a distance of at least the diameter of the port from the end of the port to the wall inside the box. To best seal off any air leaks use silicone around the inside edge. Also, bevel the inside edge of both ends of the port to cut down on port noise.
5.
Place the woofer into the hole which you have cut into the box to check the fit. Make sure that the T-nut holes line up.
6.
Install the 10-24 T-nuts (supplied) into the 7/32” holes from the backside of the mounting board.
7.
Run an appropriate length of wire into the box, leaving enough 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.
8.
Vacuum out any shavings and dust that could find it's way into your woofer from the inside of the box. Line the box with a polyester fiberfill blanket or fiberglass insulation about 1” thick.
9.
Apply the included foam gasket to the speaker to ensure a sealed fit.
Be sure that the mounting holes line up on the gasket.
10.
Connect the wires to the woofer observing the proper polarity, positive and negative terminals. Strip away the insulation of the wire about a 1/4" and install the wires into the terminal posts.
11.
Install the woofer into the box using the provided 10-24 bolts.
12.
Once the box is completed it is time to connect the speaker 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.)
13.
Finally, sit back and enjoy to the incredible enhancement your new
PrecisionPower subwoofer brings to your audio system.
4
PORTED ENCLOSURE
Ported speaker diagram
10-24 T-nut
10-24 Allen head bolt
Subwoofer
Foam seal gasket
Mounting hole diameter
Port
D
L W
Internal dimensions should be calculated to determine the correct box volume. Be sure to allow for speaker displacement, extra bracing (if used), and port displacement. It may be necessary to angle the port to fit your design.To calculate volume of the port: Radius 2 x 3.14 x Length of port.
5
POWERCLASS PRO8 Subwoofer
PRO8 Specifications
Normal Power Handling
Voice Coil Diameter
Voice Coil Type / Former
Resonant Frequency
Qts-Total Damping
Qms- Mechanical Damping
Qes- Electromagnetic Damping
Vas- Equivalent Compliance Volume
DC Resistance of V.C.
Sensitivity(SPL at 1W)
Linear Excursion
Peak to Peak Excursion
Mms- Total Mass
Sd- Piston Area
Bl- Magnet Product
Diaphragm Material
Basket Material
Net Weight
Dimensions
Mounting Diameter
PRO8 Sealed Enclosure
Basic working dimensions for the PRO8
Outer Diameter
Mounting Hole Diameter
Mounting Depth (from bottom of top ring)
Speaker Displacement
Inside Volume / Internal Box Dimensions
.33 cubic foot LxWxD 12” x 9” x 6 13/32”
.50 cubic foot LxWxD 14” x 10” x 7 9/32”
.75 cubic foot LxWxD 12” x 10” x 12 1/32”
PRO8 Ported Enclosure
8 3/8”
7 1/4”
4 1/4”
.07 cubic foot
200W rms
2” edge wound/Kapton
40Hz
.37
1.5
.50
14 Liter
4
Ω
/ 8
Ω
85 dB
±
5.5mm
±
13mm
59.9 grams
0.0191 sqM
11.13 TM carbon fiber/Nomex honeycomb cast aluminum
14.44lb
8.375” dia. X 4.125” H
7.25” dia.
Due to the very small box size and the very large port necessary to appropriately tune the enclosure, we do not recommend a ported enclosure for the PRO8
6
POWERCLASS PRO8 Subwoofer
PRO8 IMPEDANCE CURVE *
OHMS
100.0
P C P R O 8 I N P U T I M P E D A N C E : M A G N I T U D E
Sealed
30.0
10.0
3.0
1.0
10 20 30 50 70 100 200
Frequency Hz
300 500 700
PRO8 Sealed RESPONSE CURVE *
-6
-9
-12
-15
-18
-21
-24
-27
-30
15
12
9
6
3
0dB
-3
10 20
.75 cubic foot
.50 cubic foot
.33 cubic foot
30 50 70 100
Hz
200 300 500 700 1K
PRO8 Ported RESPONSE CURVE *
Due to the very small box size and the very large port necessary to appropriately tune the enclosure, we do not recommend a ported enclosure for the PRO8
2K
1000
*ACTUAL IN-CAR RESPONSE CURVE WILL VARY BASED ON CAR TYPE, WOOFER LOADING, AND ENCLOSURE DESIGN.
7
POWERCLASS PRO10 Subwoofer
PRO10 Specifications
Normal Power Handling
Voice Coil Diameter
Voice Coil Type / Former
Resonant Frequency
Qts-Total Damping
Qms- Mechanical Damping
Qes- Electromagnetic Damping
Vas- Equivalent Compliance Volume
DC Resistance of V.C.
Sensitivity(SPL at 1W)
Linear Excursion
Peak to Peak Excursion
Mms- Total Mass
Sd- Piston Area
Bl- Magnet Product
Diaphragm Material
Basket Material
Net Weight
Dimensions
Mounting Diameter
PRO10 Sealed Enclosure
Basic working dimensions for the PRO10
Outer Diameter
Mounting Hole Diameter
Mounting Depth (from bottom of top ring)
Speaker Displacement
10 7/16”
9 1/4”
4 1/4”
.092 cubic foot
Inside Volume / Internal Box Dimensions
0.5 cubic foot LxWxD 16 5/16” x 10 1/16” x 6 1/4”
.75 cubic foot LxWxD 18 5/16” x 11 5/16” x 7”
1.0 cubic foot LxWxD 20” x 12 3/8” x 7 5/8”
PRO10 Ported Enclosure
Basic working dimensions for the PRO10
Outer Diameter
Mounting Hole Diameter
Mounting Depth (from bottom of top ring)
Speaker Displacement
Inside Volume
Internal Box Dimensions (LxWxD)
Port Length
Port Diameter
Port Displacement
10 7/16”
9 1/4”
4 1/4”
.092 cubic foot
1.0 cubic foot
20 1/4” x 12 1/2” x 7 3/4”
10 1/16”
3” ID
.04 cubic foot
300W rms
3” edge wound/Kapton
37Hz
0.36
2.22
0.42
34.1 Liter
4
Ω
/ 8
Ω
88.1 dB
±
5.5mm
±
13mm
75.13 grams
0.0315 sqM
12.92 TM carbon fiber/Nomex honeycomb cast aluminum
23.66lb
10.4” dia. X 4.75” H
9.25” dia.
8
POWERCLASS PRO10 Subwoofer
PRO10 IMPEDANCE CURVE *
PRO10 Sealed RESPONSE CURVE *
PRO10 Ported RESPONSE CURVE *
*ACTUAL IN-CAR RESPONSE CURVE WILL VARY BASED ON CAR TYPE, WOOFER LOADING, AND ENCLOSURE DESIGN.
9
POWERCLASS PRO12 Subwoofer
PRO12 Specifications
Normal Power Handling
Voice Coil Diameter
Voice Coil Type / Former
Resonant Frequency
Qts-Total Damping
Qms- Mechanical Damping
Qes- Electromagnetic Damping
Vas- Equivalent Compliance Volume
DC Resistance of V.C.
Sensitivity(SPL at 1W)
Linear Excursion
Peak to Peak Excursion
Mms- Total Mass
Sd- Piston Area
Bl- Magnet Product
Diaphragm Material
Basket Material
Net Weight
Dimensions
Mounting Diameter
PRO12 Sealed Enclosure
Basic working dimensions for the PRO12
Outer Diameter
Mounting Hole Diameter
Mounting Depth(from bottom of top ring)
Speaker Displacement
300W rms
3” edge wound/Kapton
43Hz
0.52
2.51
0.66
43.97 Liter
4
Ω
/ 8
Ω
89.31 dB
±
5.5mm
±
13mm
114.7 grams
0.0512 sqM
13.74 TM carbon fiber/Nomex honeycomb cast aluminum
24.18lb
12.27” dia. X 4.75” H
11.125” dia.
12 9/32”
11 1/8”
4 1/4”
.098 cubic feet
Inside Volume / Internal Box Dimensions
1.0 cubic foot LxWxD 20” x 12 3/8” x 7 5/8”
1.25 cubic feet LxWxD 21 7/16” x 13 1/4” x 8 3/16”
1.50 cubic feet LxWxD 22 11/16” x 14” x 8 11/16”
PRO12 Ported Enclosure
Basic working dimensions for the PRO12
Outer Diameter
Mounting Hole Diameter
Mounting Depth(from bottom of top ring)
Speaker Displacement
Inside Volume
Internal Box Dimensions (LxWxD)
Port Length
Port Diameter
Port Displacement
12 9/32”
11 1/8”
4 1/4”
.098 cubic feet
1.50 cubic feet
23 1/16” x 14 1/4” x 8 13/16”
11 1/16”
4” ID
.08 cubic foot
10
POWERCLASS PRO12 Subwoofer
PRO12 IMPEDANCE CURVE *
PRO12 Sealed RESPONSE CURVE *
PRO12 Ported RESPONSE CURVE *
*ACTUAL IN-CAR RESPONSE CURVE WILL VARY BASED ON CAR TYPE, WOOFER LOADING, AND ENCLOSURE DESIGN.
11
Additional information
The PowerClass PRO8 subwoofer will give you excellent results in sealed enclosures from .33 cubic foot to over .75 cubic foot.
The PowerClass PRO10 subwoofer will give you excellent results in enclosures from .5 cubic foot to over 1 cubic foot, ported or sealed.
The PowerClass PRO12 subwoofer will give you excellent results in enclosures from 1 cubic foot to over 1.5 cubic feet, ported or sealed.
If a ported enclosure is utilized, the port should be tuned from 32-40 Hz.
Use as large a port diameter as possible to eliminate port “whistle”. Be sure to refer to diagrams and charts for specifications for your new subwoofer.
Our dealers are trained to achieve the highest level of performance from our products. If you are installing your new subwoofers on your own and need assistance, please call your local PrecisionPower dealer or
PrecisionPower Technical Service Department at
1-800-62-POWER.
Thanks again for choosing PrecisionPower.
The Solution Is Loud And Clear™
Ferrosound means more stable sound quality and performance, smoother frequency response, reduced distortion, increased power handling, greater efficiency and voice coil centering.
NOTE: Abuse and/or Installation Error: PrecisionPower defines abuse as, but not limited to, burnt voice coils (blackened, no continuity, melted adhesives, coil separated from the former, etc.), punctured or damaged surrounds, broken speaker terminals, non-
PrecisionPower modifications, bent, chipped, or broken frames, ripped spiders, or damaged back plates. Speakers submitted with any of the above will be considered out of warranty.
12
WA R R A N T Y
Three-Year Limited U.S.A. Warranty
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. PrecisionPower warrants its products to be free from defects in materials and workmanship under normal use and service for a period of three (3) years from the date of original purchase when the unit is installed by an Authorized Dealer. Non-Authorized Dealer installed products carry a one (1) year parts and ninety (90) days labor limited warranty. The extent and conditions of Limited Warranty are as follows:
1. Authorized Dealer Installed Products: PrecisionPower will either repair or replace at no charge, to the original purchaser, any unit which PrecisionPower’s examination discloses to be defective and under warranty, provided the defect occurs within three (3) years from the date of original purchase when the unit is installed by an Authorized Dealer and the product is returned immediately to PrecisionPower. This warranty is not transferable.
2. Non-Authorized Dealer Installed Products: PrecisionPower will either repair or replace at no charge, to the original purchaser, any unit which PrecisionPower’s examination discloses to be defective and under warranty, provided the defect occurs within ninety (90) days from the date of purchase and the product is returned immediately to PrecisionPower. Warranty claims beyond ninety (90) days for Non-Authorized Dealer Installed Products will be for parts only and will extend for one (1) year from the date of purchase. This warranty is not transferable.
3. The date of purchase and proof of Authorized Dealer Installation of a PrecisionPower product must be established by an original sales receipt which must accompany the article being returned for warranty work.
4. This warranty shall NOT apply to any PrecisionPower product found to have the original factory serial number removed or defaced. All products received (by PrecisionPower) for in warranty or out of warranty repair, with their original serial numbers removed or defaced, will NOT be repaired and will be returned to sender, freight collect. Refer to original packaging for the serial number of your component speakers.
5. The provisions of this warranty shall not apply to any PrecisionPower product used for a purpose for which it is not designed, which has been repaired or altered in any way, or which has been connected, installed, or adjusted other than in accordance with the instructions furnished in
PrecisionPower’s owner’s manual. Nor shall this warranty apply to any part which has been subject to misuse, neglect, or accident.
6. PrecisionPower does not authorize any other persons to assume any other liability in connection with its products. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY MADE BY
PRECISIONPOWER APPLICABLE TO ITS PRODUCTS. ANY IMPLIED WARRANTY OR MER-
CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE APPLICABLE TO
PRECISIONPOWER PRODUCTS IS LIMITED IN DURATION TO THE DURATION OF THIS
LIMITED WARRANTY. PRECISIONPOWER SHALL NOT BE LIABLE FOR THE INCIDENTAL,
CONSEQUENTIAL, OR COMMERCIAL DAMAGES RESULTING FROM THE BREACH OF THIS
WRITTEN WARRANTY. Some states or provinces do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts; so the above limitations or exclusions may not apply to you.
7. Your product will be serviced on an in-warranty basis within the warranty period for the correction of warranted defects. If improper operation of your PrecisionPower product should occur, contact your Authorized Dealer for assistance with the return and factory repair of your
PrecisionPower product. If an Authorized Dealer is not available, return the unit including your name, telephone number, return address, a copy of your sales receipt, and a description of the problem to:
PrecisionPower,Inc.
Service Department
4829 S. 38th Street
Phoenix, AZ 85040-2964
TO RETURN PRECISIONPOWER PRODUCTS OUT OF WARRANTY: Return the unit, postage prepaid, in the original protective carton. Please include a description of the problem and, if desired, a request for an estimate of repair costs. Unless a request for an estimate is included, the unit will be repaired as necessary. Please contact PrecisionPower Customer Service at 1-
800-62-POWER for questions concerning out of warranty repair charges. Repaired unit will be returned with an itemized statement, C.O.D.
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