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Precision Power PPI i520.4

520W RMS (Dyno Tested at 554W RMS) iON Series Class D Full-Range Digital Stereo Bridgeable 4-Channel Amplifier

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Precision Power PPI i520.4

520W RMS (Dyno Tested at 554W RMS) iON Series Class D Full-Range Digital Stereo Bridgeable 4-Channel Amplifier

$119.97

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You will need an amp kit to install your amp, and the TruConnex TC4KIT-44B by Metra is the perfect kit for this amp. For a limited time, when you click "Add Both to Cart", you'll receive 25% off the amp kit. This offer cannot be combined with any other coupons or offers.

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TruConnex TC4KIT-44B by Metra

• 4 Gauge Power Amplifier Installation Kit
• Ideal for Systems Up to 900 Watts
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 4-Channel Twisted RCA Cables

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Sonic Electronix Power Certified Amplifier

The Precision Power PPI i520.4 4-Channel amplifier is a Sonic Electronix Certified Amplifier. This amp's power output has been professionally tested with our SMD Amplifier Dyno, bringing you it's true power ratings.
Learn more about this amp's Sonic Electronix Certified Power Here!


Impedance
Claimed Output
Certified Results
Dynamic Results
4 Ω
100W @ 14.4V
96W @ 14.16V
100W @ 14.20V
2 Ω
130W @ 14.4V
153W @ 14.14V
173W @ 14.16V
4 Ω Br.
260W @ 14.4V
277W @ 14.13V
329W @ 14.18V



General Features:

  • Precision Power iON Series PPI i520.4
  • Class-D Digital Full Range, 2-Ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohms: 100 watts x 4 chan.
    • 2 ohms: 130 watts x 4 chan.
    • Bridged, 4 ohms: 260 watts x 2 chan.
  • Sonic Electronix Certified Power Rating*:
    • 4 ohms: 96 watts x 4 chan.
    • 2 ohms: 153 watts x 4 chan.
    • Bridged, 4 ohms: 277 watts x 2 chan.
  • MOSFET Power Supply w/ Audiophile Grade IRTM Transistors
  • LED power (green) and protect (red) indicators
  • Speaker-level (high-level) inputs
  • Soft start turn-on
  • 4, 3 or 2 channel operation
  • Low-Heat producing circuit
  • Military Grade SMT PCB Maintains Dynamic Performance
  • Hybrid Aluminum Alloy Heatsink for Optimum Dissipation
  • Double sided FR-4 PC board
  • Quick Disconnect RCA/High Level Wire Harness
  • SMT (Surface Mount Technology) for easy installation
  • Nickel-plated RCA, Power/Ground and Speaker Connections
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heat-sink for extreme heat dissipation
  • Input sensitivity: 200mV - 6V
  • Frequency Response: 10 - 20,000 Hz
  • Total Harmonic Distortion (THD): 0.5%
  • Signal to Noise Ration: 70 dB
  • Selectable high-pass filter: 80 Hz, 12 dB/octave
  • Selectable low-pass filter: 80 Hz, 12 dB/octave
  • Made in Korea
  • Fuse Rating: 40A x 1
  • 8 gauge power and ground wiring is recommended for installation.
    • Most "True To Spec" 4 Gauge Power/Ground cables will not fit and will require the installer to shave away excess wire.
    • Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.
  • Dimensions: 5-5/16"W x 9"L x 1-11/16"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

*The Sonic Electronix Certified Power Ratings listed are based on a test of a specific sample amplifier. Actual power ratings may slightly vary between amps.

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

100 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

130 watts x 4 channels
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

260 watts x 2 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
iON (Precision Power)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
4
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

520 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
8 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
0.5%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Yes
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

Fixed 80 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

Fixed 80 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
70 dB
Channel Separation
Also referred to as crosstalk. The amount of interference on one stereo channel caused by the leaking of the other stereo channel. The higher the rating in decibels (dB), the better the Channel Separation.
55 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
No
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
40A x 1 
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.
No
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

No
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Yes
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
55%
4 Star
36%
3 Star
0%
2 Star
9%
1 Star
0%

Average Attribution Rating

Durability
4.2
Value
4.9
Features
4.0
Design
4.3
Usability
4.5
Jason

Republic, mo

Overall
Durability
Value
Features
Design
Usability
Great!!

July 9, 2014

This is a powerful amp. I am running 4 of the 7" alpine marine speakers with this amp. Wow!! I have room for 4 more speakers on this amp. Very pleased. I highly recommend.

26 of 30 found this helpful

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JC

Round Rock, TX

Overall
Durability
Value
Features
Design
Usability
Precision Power PPI i520.4 - a stealth addition to my reportoire

January 12, 2015

Been dying to amplify my 4 coaxials, 2 Kappas in the front and 2 MB Quarts in the rear. This thing delivers, and packs a wallop at such a small footprint. I can see others mounting this is other stealth spots like under the driver seat or even under a truck bench. And it puts out the wattage! Trust me, quality PPI construction and performance at an absolute steal of a price!

26 of 31 found this helpful

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Philip

Riverside, CA

Overall
Durability
Value
Features
Design
Usability
Good Amp

January 26, 2014

The amp works well. I mounted it under my passenger seat. The vehicle was a 2004 corolla. The amp was so small, it very easily fit under the passenger seat. Installation was a breeze and it powers my kicker speakers very well. The one con I found about the product is the ground and power terminals on the amp are stacked on top of each other. Normally those terminals are side by side. I ran 4 gauge power and ground to the amp. The gauge was so large, I could not screw the ground wire screw down far enough to fit in the power wire above the screw. I had to trim down the gauge of the ground wire and power to get them to fit into the terminals. You will need to trim 4 gauge wire or go with 8 gauge wire.

21 of 26 found this helpful

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jeffdachef

garden grove CA

Overall
Durability
Value
Features
Design
Usability
GOOD

December 4, 2013

Owned it for seven months now, it plenty of power and no noise, clean sounding mids and highs lasts long, runs warm-borderline hot on 95 degree summer days but on normal weather 50-80 degrees, it runs real cool. What have i used that i can compare it to? JL audio 60 x 4 A/B channel amp, no difference in sound quality at all, but this ppi amp offers more power with better efficiency. Definitely way better then my friend's hifonics zues/gladiator 100 rms X 4 channels in terms of sound and raw power. Only bad thing i can knock on it is that its not Active capable, pretty much an amp with globs of power and minimal crossover functions.

21 of 26 found this helpful

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War Eagle

Tampa Area, FL

Overall
Durability
Value
Features
Design
Usability
Great little amp for the money.

July 18, 2014

This amp is a great value. I'm running a front soundstage in my car from this little guy, and thus far it's been great. I can't speak to its crossover capabilities since my DSP is handeling that end, but the power is sufficient for my 7" drivers and 2" tweets.

18 of 23 found this helpful

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CJR

Nashville, TN

Overall
Durability
Value
Features
Design
Usability
Great sounding amp with lots pf power.

May 4, 2014

Great sounding small amp with lots of power. I used his amp along with a new set of components and rear speakers and this little amp rocks. With its small size was super easy to do a clean install and easily hide it

19 of 25 found this helpful

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Kirk

Trinidad and Tobago

Overall
Durability
Value
Features
Design
Usability
Awesome little amp.

February 26, 2015

This amp can be hidden anywhere, so it makes installation a breeze. I had always been a PPI user, and wanted to see if PPI still produces good products.

Even though I am currently only using it for my component set (MB Quart OSC213), it sounds great with no overheating for a chassis this small. I still have to connect my Rockford 10" to it, but from what I have heard from it so far, i am sure i will not be let down.

15 of 19 found this helpful

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Joe

Chicago, IL

Overall
Durability
Value
Features
Design
Usability
Feels well made, Nice weight.

May 13, 2016

I've just installed this amp. I like the look and feel of the amp however the screw terminals on the amp are pretty cheap, I liked the remote out feature however it causes my sub amp to "pop" when it turned on. I wired my remote to my sub amp and jumped to this PPI amp and that "pop" is gone.

Keep in mind when watching the sonic amp dyno video they are testing at 1% THD not the 0.05% THD PPI claimed.

0 of 0 found this helpful

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Alek

Grand Rapids, MI

Overall
Durability
Value
Features
Design
Usability
I Wanted to Like this Amp

April 14, 2016

TL;DR Great cheap small amp, I had a bad one.

Amp is stupid small, easy to find a good spot to install. It's actually kind of hard to fathom the power this can put out when you're holding it, it's just so small.

Anything over USB or Bluetooth sounded fantastic, power is on par with the ratings, clear as could be audio.

Since the other reviews on this amp are so great and no issues like this, Sonic support and I could only determine that the unit I received was a faulty one and had to be returned unfortunately.

This amp absolutely murdered radio reception. Of the 9 stations I tested, one was completely gone even if I am in the city where it is broadcasting from. 7 stations I still received, though all of them had crackles with static, and one station came in mostly fine with only the occasional crackle and break up. With the fuse pulled, I can get audio on every single channel, some a little better than others.

My radio has a symbol for audio output and another with bars to show signal strength. I tested with the amp connected, and with the fuse pulled to see the difference in reception.

For audio received we'll say
None=no audio in
Some=some audio, but a lot of static
Most=mostly audio, little static
Full=Full audio no static

For signal strength it's 1, 2, 3, 4 bars with 4 being the strongest signal.

Before:
Station 1: 4 ; Full
Station 2: 2 ; None
Station 3: 1 ; Some
Station 4: 4 ; Some
Station 5: 3 ; None
Station 6: 4 ; None
Station 7: 1 ; Some
Station 8: 1 ; Some
Station 9: 1 ; None

After:
Station 1: 3 ; Full
Station 2: 1 ; Most
Station 3: 1 ; Full
Station 4: 4 ; Full
Station 5: 1 ; Full
Station 6: 2 ; Full
Station 7: 2 ; Full
Station 8: 1 ; Full
Station 9: 1 ; Most

While it looks like I am getting less of a signal on many of the channels, the only thing I could conclude was that there was so much interference thrown by the amp that it was overpowering the local radio stations and the Radio was picking it up as a signal. Particularly #5/6 (104.5/105.3 FM for me locally) would be silent, with a faint squiggle of a squeal sound underlying the white noise.

0 of 0 found this helpful

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shane

LIVE OAK, TX

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Small and powerful!

December 10, 2015

This amp does work! It has a real small footprint and a high wattage output! Love this little thing! Great buy!

0 of 0 found this helpful

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treybrad

Austin, TX

Overall
Durability
Value
Features
Design
Usability
Solid Little Amp

November 27, 2015

I've been impressed with this little thing. First and foremost, it's tiny -- really tiny. 15 years ago I had a ESX 120w x 4 amp that must have been 4x the size of this. The small size made an under seat install really simple and painless. It also seems to be very efficient. Even after extended high volume listening it's always surprisingly cool to the touch. The option of running a size or two smaller power wire since it's less of a power hog is nice as well.

I have two channels powering some Infinity Reference 6.5" coax speakers, and the other two channels bridged to power a small subwoofer. Sounds great to my ears, plenty of punch. The difference between head unit power and the amp power to the front speakers is night and day.

If there's a con, it seems to have a little bit of a noise floor. I can't hear it with the car running, but sitting in the garage in silence, with the volume set very low I can hear a faint hum on quiet tracks. Turn the volume up a few clicks and I can't hear it -- it doesn't increase with output, just a low level, constant hum. Maybe that's due to class D design vs. AB design? I don't know... I'm not an expert, I just wanted good sound in my daily driver, not an SQ build. I wish it wasn't there, but I don't even notice it under normal circumstances.

The crossovers are also limited. I knew that when I was buying it, but two frequency, selectable (not variable) crossovers might not cut it for some. My head unit has built in crossovers with lots of options so it wasn't an issue for me.

0 of 0 found this helpful

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Accessory Tools and Products

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19 ft. of 4-Channel RCA cable with dual twisted-pair conductors

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25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

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50 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

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12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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Comes with everything you need to upgrade your power and ground wire.

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240 Amp S Series Alternator for Select 1992-2003 Dodge/Jeep Vehicles

240 Amp cutting edge 6 phase hairpin epoxy reinforced stator technology

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240 Amp L Series Alternator for Select 1963-1985 GM Vehicles

Specifically designed to fit in tight spaces

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250 Amp Alternator for Select 2003-2008 Ford/Lincoln/Mercury Vehicles

Cutting edge 6 phase hairpin stator technology with Twin internal rectifier plates with finned heat sink

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240 Amp S Series Alternator for Select 1999-2006 Jeep Vehicles

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240 Amp S Series Alternator for 2011 Toyota Corolla

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240 Amp S Series Alternator for 2006-2011 Honda Civic

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370 Amp E Series Alternator with Black Finish for Select 1994 - 2003 GM

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320 Amp S Series Alternator for Custom and Racing Applications

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12-Volt Deep Cycle AGM Power Cell with 750 Max Amps

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Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

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120 Amp 4-Post Battery Isolator

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ANL/Mini-ANL Fuse Holder with 1/0 or 4 Gauge Input and Output

No-fail termination and current flow, it helps keep your system protected and running smoothly

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4 Pack of 80 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 80A Nickel Plated Fuses

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4 Pack of 100 Amp Nickel-Plated MANL Fuse

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4 Pack of 150 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 150A Nickel Plated Fuses

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2 Pack of 200 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 200 Amp ANL Fuses

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2 Pack of 300 Amp Nickel-Plated ANL Fuse

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Gauge Reducer, 4 Gauge Input to 8 Gauge Pin

Great for amplifiers that do not accept a large gauge power wire

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Browse 4 questions and 16 answers
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Why did you choose this?
Sonic Electronix Store
great for 4 channel budget power
Rich C on Nov 18, 2016
Bench tested by Sonic, so I trust the findings. I am on this website frequently for troubleshooting various installs. Can't wait to get it plugged in!
Kevin E on Jun 5, 2016
Best value and trusted testing specs. Also having good luck with ion series sub amplifier in car
Dave F on Jun 16, 2016
Already own a ppi amp which I have owned for years driving my JL subs with no problems or complaints. Also your testing on this specific amp helped!
Francisco T on Mar 26, 2016
I have only a single stereo RCA pair to feed this amp, and plan to power all 4 speakers. If I don't plug in a set to the rear, will I only get signal in the front l/r? Or does it switch and feed signal to the rear l/r when it doesn't detect it? Checked the manual that came with it, no luck.
A shopper on Dec 17, 2014
Best Answer: Hello,

like Todd and Lauren suggested, it will NOT send signal to the rears. We do NOT suggest Splitting the RCA signal, because this will dramatically degrade the overall performance/signal. Your best approach is to use the Amplifiers High Level Inputs w/ the harnesses that come with the amplifier, pictured in the link below. It is a bit more work than simple RCA connections, but is worth the effort if you wish to have a clean output. Instead of RCAs you simply need a strand of "9 Conductor Wire" to run from your stereos speaker wire outputs (total of FOUR outputs) to the amp's high level inputs.

http://www.sonicelectronix.com/pictures_new.php?id=68789&picture_id=1352676

http://www.sonicelectronix.com/item_24134_EFX-FS9W-25FT-by-Scosche.html
Reply · Report · Sonic Electronix SStaff on Dec 19, 2014
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How do i get the best performance if I am running only two 6.25 inch front speakers. What speaker ratings should I look for to best match this amplifier?
Markgc64 on Jun 16, 2015
Best Answer: I look for speakers that match the ratings on the amp. For example that is a 4 channel amp i believe is 500 watts. So you could run 2 speakers rated at 250 watts 4 ohm. I don't think there is any 6" speakers rated at that high watts. You can rune lower amp speakers with it and it will do just fine just don't turn it up too much or you will have to replace the speakers. I would look for a comparable two channel amp though if you are only running two spealers
Reply · Report · Matthew A on Jun 17, 2015
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PPi website useless... Can't find this amp's manual.
Will this run "3-way"? (2 ohm components on front channel, 2 (4ohm) subs on rear channel bridged)
It looks like some class D amps can't run "3-way"???
CohoCarl on Nov 5, 2014
Best Answer: Hello Mike,

This amp will NOT fair well with having a Different Impedance ran across it. We suggest a traditional 3 Channel amp MEANT to allow such an application.
Reply · Report · Customer SStaff on Nov 5, 2014
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Product Summary

Manufacturer

Model Number

i520.4

UPC

709483044395

Weight

4.50lbs

Internal SKU

i5204

Internal Product ID

68789

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 i520.4

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