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Precision Power PPI 355CS

5-1/4" 2-Way Component Speakers System


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Precision Power PPI 355CS

5-1/4" 2-Way Component Speakers System


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Car Stereo and Speaker Installation Tool Kit

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NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!



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These Precision Power component speakers have a bloodline that no other speakers can claim. Their design is based on the world-famous a/d/s component platform except with an aluminum voice coil for improved heat efficiency. The woofer cone interlaces Kevlar, Mica, and Fiberglass to create a sturdy platform that can reproduce mids and lows with clarity. The silk dome tweeters are not harsh or shrill on the ears, yet can produce enough noise to keep up with the competition. The Precision Power PPI 355CS components come with a monster of a crossover with many different crossover configurations and a Zobel circuit. These speakers are truly the decedents of the world famous a/d/s component platform. Let your ears hear the sound of legacy.

  • 5-1/4" 2-way Component System
  • Power Handling:
    • Peak: 200 watts per set / 100 watts each side
    • RMS: 100 watts per set / 50 watts each side
  • Kevlar, mica, fiberglass interlaced cone woofer
  • Silk dome tweeter
  • Phase plug for controlled interaction between mid and high frequencies
  • Woven tinsel leads
  • 4 ohms impedance
  • Copper clad aluminum voice coil
  • Custom Crossover
    • 12 dB High pass configuration
    • 6 dB Low pass
    • +3 dB Tweeter level adjustments
    • 180º Tweeter phase adjustments
    • Multi stage tweeter protection
    • Bi-ampable mid/mid-bass Zobel circuit
  • Top-mount depth: 2-1/2"
  • 1-year Manufacturer's warranty

Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Speaker Specifications

This is the manufacturer product line of speakers.
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way Component System
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
100 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
50 watts
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
86 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
77 - 22,000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


north port, FL

Excellent Speakers!!! What a steal!!!

December 10, 2009

absolutely the best speaker kit i've ever purchased. complete with soldered wires and the best connections i have ever seen. absolutely a pleasure to install with no worries.

the manual recommends 45-150 rms which is higher than the stated 50.

6 of 7 found this helpful

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Harley Man


Excellent Sound For An Unbelievable Price!!!!!!!

December 12, 2009

I was skeptical of buying these speakers but I could'nt pass up the deal. So I entrusted a friend of mine about these speakers & he recommended them to me. So I ordered them, & I am glad I did. Worth every penny & then some. I had FOCAL's in my truck & took them out to put these in! What a sound! The crossovers are so easy to use & understand!

5 of 6 found this helpful

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Lavaca, AR

Terrific speakers...a steal for this price!!!!

October 23, 2009

I have a set of these running off of an Eclipse XA4000 amplifier. I initially ran them active, but the crossovers were to attractive to leave in the box. So, I am now bi-amping them through the passive crossovers, and they sound terrific. The midbass is good and the high's aren't harsh, as long as you set your gains properly. I have heard plenty of component speakers, and I honestly can say that these are some of the best I have heard, especially for the price. This deal is a steal, and I recommend them.

3 of 4 found this helpful

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Bloomigton, MN

What a steal!!!

August 11, 2009

What an incredible sound. I have these speakers in a Grand Prix sedan, with Polk MOMO 6x9's and two 12" kicker subs. I'm pushing 55 watts rms to them. The highs are fantastic, as is the mids. Only issue is the size of the crossover. They are huge, and would not fit in the doors of my car. I had to stick them under the seat, which is not a bad place. I highly reccomend these to everyone.

4 of 6 found this helpful

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Montclair, NJ

If they can fit in your car, get them

June 18, 2009

They are one of the best pair of speakers I have ever heard. At this price, its a steal. The tweeters are worth that price alone, throw in the heavy duty crossover, then a very impressive mid bass speaker and there is nothing that compares to it in this price range. In fact, there is very little that compares to it at double this price. These are ADS designed speaker with the PPI nameplate. This is a closeout price because Directed is dropping the line. I am planning on getting another pair....

2 of 3 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 16 Gauge Speaker Wire

100% OFC wire with a noise eliminating twisted-pair technology to provide crystal clear sound.

Your Price $15.99

Streetwires 50 ft. of True Spec 16 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $29.99

Belva 23 ft. of True Spec 16 Gauge Speaker Wire

100% Copper Clad Aluminum, PVC blended jacket for easy installation and high strand count for maximum audio quality

Your Price $12.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

NVX XTGSP2 Tone Generator and Speaker Polarity Tester

Perfect for safely troubleshooting and testing audio systems

Your Price $29.99

Belva Five Piece Installer's Panel Removal Tool Kit

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $11.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $7.99

Encore Universal Four Door Power Door Lock Kit

Add Power Door Locking and Unlocking while you have the Door Panels removed

Your Price $29.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $12.99

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $10.99

NVX Sound Dampening Rubber Roller

Install your Sound Dampening with ease using this heavy duty rubber roller!

Your Price $7.99


Creates a tight seal around the speaker for enhanced audio quality and imaging.

Your Price $17.99

Speaker Baffles for your Speakers

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $9.99

5" to 5-1/4" Round Foam Speaker Baffles

Creates a tight, acoustic seal behind the speaker to enhance the sound quality.

Your Price $5.97

16-14 AWG Butt Connectors

These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!

Your Price $4.49

16-14 AWG Blue T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.99

16-14 AWG Quick Disconnect Connectors

These blue quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $13.26

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Precision Power PPI 355CS