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Soundstream PN4.520D

520W 4-Channel Picasso Nano Class-D Amplifier

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List price $229.95

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Save 25% on a 4 Gauge Amp Kit with Purchase!

You will need an amp kit to install your amp, and the Belva BAK44 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.




Soundstream PN4.520D



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Belva BAK44


Special Price $37.49 ($49.99 if purchased separately)

Belva BAK44

• Complete 4 Gauge 4-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 1000 Watts RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 30% Copper CCA Wire

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General Features:

  • Picasso Nano Series 4-Channel Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 100 watts x 4 chan.
    • 2 ohms: 130 watts x 4 chan.
    • 4 ohms, Bridged: 260 x 2 chan.
  • Max power output: 520 watts
  • Pulse Width Modulated MOSFET power supply
  • Heavy duty aluminum heatsink
  • Soft turn-on circuit
  • Thermal and speaker short protection circuitry
  • Dash mount remote bass level control included
  • Variable Bass Boost (0 to +12 dB bass boost at 80 Hz)
  • 4 and 2 channel operation
  • 180° phase switch
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • Variable low-pass filter (50-250 Hz, 24 dB/octave)
  • Subsonic filter (12 dB at 10-50 Hz)
  • 4 gauge power and ground wiring is required for installation
    • Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier
  • Dimensions: 4.75"W x 9"L x 2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

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.
Picasso-Nano (Soundstream)
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.

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.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

520 watts
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.

400 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.
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
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.
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.
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)
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.

50 - 250 Hz
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 12 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.
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).
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.
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.

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


austin, TX

Awesome Amp

February 7, 2015

I ordered this to replace a kenwood 400w 4ch amp that I had in my car. My primary reason was for the size cause I knew it would fit under the seat. I have previous experience with Soundstream and know that they put out an amazing product. In fact this amp is pushing SoundStream Tarantula speakers up front in my car that are 5.25" and those replaced the 6.75" alpine type s speakers I had and I always felt those were pathetic.

For the power output and 4 channels this amp can't be beat.

4 of 5 found this helpful

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manchester, NH


July 13, 2014

Wow what a great amplifier! I have the PN4.520D Bi-amping a set of Sony XSGS1720S 6.5" Component speakers. This amp is very small for the power it puts out. very powerful. It is replacing a vega 500.4. The PN4.520D is by far more powerful and cleaner. The crossover is the only weakness of this power house.

9 of 16 found this helpful

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Arvin Sajat


Big punch in small form

April 5, 2015

This thing puts out twice the power of my stock head unit. Installed in my trunk, almost invisible due to the small footprint. Would recommend if you're on a tight budget but still want good bang for ur buck....

1 of 1 found this helpful

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Franklin, TX

great amp

April 5, 2015

Have this little gem hooked up in my probox on my can am maverick. It really makes those 6.5 sing. Everyone is amazed how much sound comes out of those 4 speakers.

0 of 0 found this helpful

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Brooklyn, NY

great buy!

January 12, 2015

This is a great little amp that puts down serious power. i currently have it powering a pair of alpine type R tweeters and another pair of alpine type S tweeters. the amps puts out so much power with gain set at 1/4 that the type s tweeters (100 rms rated) started to sizzle and almost popped while playing loud for just about 5 min. the amp does get warm after about 15 min of really loud music but never really gets to the point of burning your hand even after an hour of constant pounding. highly recommended amp.

4 of 8 found this helpful

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phoenix, AZ

Amazing !!!

July 8, 2014

purchased and installed 2 sets of MB Quart OSC213, a pair of RE Audio REX8D4, a Soundstream PN2.350D (for 8"s) and PN4.320D (for mids & tweets) controled by a Kenwood KDCBT558U. 8"s are in minimal enclosures(sealed) . this system is in a 2005 Ford f-250 Super Duty Crew Cab. Incredible sound. couldn't believe my ears. WOW!! the REX8D4's feel and sound like more expensive 10"s. i HIGHLY recommend ALL these components,and will use them again on future installs...

7 of 17 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT44 4-Gauge 4-Channel Wiring Kit

4-Channel 100% OFC Complete True 4 Gauge Amp Kit with RCA Cables and Speaker Wire

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T-Spec V8-4DAK 4-Channel 4-Gauge Wiring Kit

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NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

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

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Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

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StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

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Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

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NVX XIX45 X-Series RCA Interconnect Cable

16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology

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StreetWires ZN9 Series Interconnect Cable

16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!

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Kicker 4-Channel RCA Audio Interconnect Cable

4 Meters (13 ft.) 4-Channel K-Series RCA Audio Interconnect Cable

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NVX XWS1225 12 AWG Speaker Wire

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

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Belva BBSW127 12 AWG Speaker Wire

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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The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

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e2 ECAP1 by Scosche - Mid-Level 1 Farad

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Rockford Fosgate RFC1D - Top of the Line 1 Farad

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Browse 4 questions and 14 answers
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Why did you choose this?
Sonic Electronix Store
I've had a few Soundstream units in my cars over the past years and they never disappointed me. I bought this one for my kid brother, hope it's as good or better then what the reviews say.
Arvin Sajat A on Mar 3, 2015
ive had it in the past and was a great system amp
JEFF L on Dec 24, 2014
Small amp that pushes the power I needed while still fitting under my seat
John C on Jan 3, 2015
This site was recommended by a friend who recently purchased from there. Very easy sopping experience and will definitely buy from again
Jeff L on Dec 8, 2014
Can this be bridged on just the rear channels? I'd like to run the front to the door speakers and the rear bridged to a sub. The manual says 2 or 4 channels though.
Brent H on Oct 28, 2014
Best Answer: Hello Brent,

Yes, it can be. However, you are obligated to a 4ohm final impedance at ALL channels. That means the subwoofer MUST be a 4ohm final load. The amp WILL fry if this is not followed.
Reply · Report · Customer SStaff on Oct 28, 2014
· Add Answer · I Have This Question Too (1)
I would like to use this amp to power (2) JBL P662 2ohm speakers on the front channels, and 2 JL Audio 6W3V3-4 4ohm subs on the rear channels. can I mix match impedances front and rear? what will be the RMS power on the front channels at 2 ohms? what would be the RMS power for the rear channels at 4 ohms?
eric s on Jan 26, 2015
Soundstream PN4.520D
Soundstream PN4.520D
JL Audio 6W3V3-4
JL Audio 6W3V3-4
JBL P662
JBL P662
Best Answer: Hello Eric,

The impedance MUST match. Some higher end amplifiers have the ability to 'mix match' the load of their outputs, but even then that often depletes the life of the amplifier (despite the manufactures' approval). We suggest a traditional 3-Channel , like the JBL GTO-3EZ, or reconsidering the setup.

Feel free to speak with the Manufacture's Tech Support for their input:
Technical support is available Monday through Friday from 8AM PST to 4:30PM PST at (323)724-4600 extension 243.
Reply (1) · Report · Customer SStaff on Jan 26, 2015
· Add Answer · I Have This Question Too (0)
Does this Amplifier have balanced RCS inputs?
Peter D on Nov 27, 2014
Best Answer: I am not sure what RCS stands for..but I used this amplifier on my motorcycle to power 4 each of the Polk audio 5.25" speakers..and I have got to say for the size and price of this will not be disappointed..
Reply (2) · Report · ken r on Nov 27, 2014
· Add Answer · I Have This Question Too (0)

Product Summary


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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: Soundstream PN4.520D

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