Soundstream PN4.520D 520W 4 Channel Class D Picasso Series Compact Amplifier PN4520D

Purchased this 4ch Amp For 3 Main Reasons - 1.) Trusted Brand - Soundstream Has Been Around For Years 2.) Compact Size Considering It's A Multi-Channel Amp 3.) Price - Extremely Reasonable Considering The Build Quility/Performance Of This BabyInstalled Underneith The Passenger Seat Of A 1998 Eclipse GS-T Spyder Powering The Mids/Highs Of My SystemJBL 2-Way 6.5" GTO Series Speakers In The Doors and KICKER CS Series 6"x9" Speakers In The Rear Area.Sonically This System Sounds Amazing!!! I Listen Mostly To 70s Rock, 80s Rock, Pop, and Hair Bands And This System Handles All Of It Flawlessly!!!Plan To Install A Rockford Fosgate R1 10" Subwoofer Box Powered By SOUNDSTREAM's Picassa Nano Mono Amp To Complete My System In The Near Future.

This amplifier is one of the still " made in Korea" amplifiers made by Soundstream. It puts out super clean sound quality and put out true rated power. You get high and low level inputs, selectable crossovers for both channels as well as a power and protect led. I have used these amp for years and they never let me down and for the price you can not beat it.

I had a Pioneer GM-D9500F, it is a class FD 4 channel bridgeable amp. It was driving a front pair of Pioneer TS-D1702C 6-3/4 inch Component speakers and a rear pair of TS-D1702R 6-3/4 inch coaxial speakers in the rear speaker pods. I had the rear speaker pods ported into the tour pack and the rear pods were both damped with acoustic foam and with bass fiber filler. The front speakers had the entire front fairing is damped by acoustic foam and bass fiber filler was placed around the woofer. I also have the pioneer DEH-X3600UI CD receiver. The receiver is connected to the amp through Audio Quest G-Snake interconnects and the speaker cables are through Boss Audio (those need to be upgraded) the power and ground cable is Boss Audio. So that is the set up, the amp is located in the tour pack.So the comparison.... the Pioneer GM-D9500F very powerful for 75 watts per channel, very clean, clear, transparent. The head unit really allows you to adjust the tonal quality of the music. A friend told me to increase my power that 75 watts wasn't enough, though going at highway speeds (keeping up with traffic) the sound/loudness wasn't an issue. But I'm all for more power, so I decided to purchase a more powerful amp and I read some good things about the Sound Stream Picasso Nano 4.520d 4 channel. Why not go for it, it was a good price, cheaper than my Pioneer and with more power.I swapped out the Pioneer GM-D9500F for the Sound Stream Picasso Nano 4.520d. I certainly heard a difference, keeping all things the same, (head unit settings, cables, power, speakers, acoustic dampening, porting), the sound stream seems to not have as much transparency, it also seemed to struggle at lower volumes. What I mean by that, the Pioneer was clearer, more tonally accurate, greater bass reproduction and the highs didn't bust my ear drums. While the Sound Stream certainly got loud, it got harsher as the volume was increased.So I hear the logical comments, why does any of this matter when your on a Harley and all you hear is the pipes and air. Well... believe it or not, you can have a great sound system on a Harley that really sounds great while your riding at any speed. If you only replace the amp, you will hear some difference and if that is all your doing, just buy the cheapest most power amp and plug in to your Harley. However, if your really trying to enjoy music while your riding and you have upgraded from the power source to the interconnects and speaker cables you can achieve sonic quality music that sounds as really great while your riding and sounds fantastic with the bike off and playing music. Think of all the pieces that make your sound system work, and now think of each piece as a gray layer of glass. Put all those gray layers of glass together and while you can still see light through it, it isn't clear, bright, or nearly the same as the source. That is what audiophiles strive for is to get the sound reproduction to be virtually the same as the source. By making all those changes on the my Harley, the sound that I'm hearing is much closer to the source than the original equipment. As you replace the stock or cheap pieces with more quality pieces, you take a gray glass pane out and put a clearer glass pane, you do this until you get to the closest reproduction of the source, or until you wife screams at you to stop spending on the audio system (by the way I'm the later).So back to the review, the Pioneer S/N is >95db while the Sound Stream S/N is 70db. This means that the Pioneer has cleaner sound (greater sounds than background noise). This is why at higher volume the Sound Stream was more harsher and sounded more colored, while the Pioneer was cleaner, more transparent, more accurate representation of the music.One other matter I noticed, while many people stated the Sound Stream didn't get hot or was barely warm, I noticed a completely different result. The Sound Stream got very hot, so hot that at times I could touch it for about half a second before it was uncomfortable to touch. The Pioneer on the other hand got warm, but near to the point where I was concerned. I commute 129 miles round trip to work, so I really use my sound system and I crank it while riding. With all things being the same, I took the Sound Stream off and remounted my Pioneer.Yes the Sound Stream is much smaller in size (that's a huge plus), but the Pioneer fit very well in the tour pack. I'll probably place the Sound Stream in the front fairing and use it to drive sub woofers in the lower fairing. I hope this is helpful to anyone wondering if more watts is better than what they currently have. Your consideration should be more than just watts.

I have been out of the car audio world for a long time and I had some equipment laying around doing nothing. When the stock amp in my car fried I needed to do something. Originally, I bought this little amp to replace the stock amp and run the interior speakers, no big deal. It fit right in the stock location and sounded excellent. Then when my stock subwoofer blew out, I hooked the interior speakers to the front channels of this amp @ 2 ohms and bridged a Treo SSi 15" sub @ 4 ohms to the rear speakers of this tiny little thing. It sounds FANTASTIC. I can't believe this thing makes that subwoofer move like this. The gain on the front is set at 1/4 and the gain on the rear going to the subwoofer is less than 1/2 and the amp is working flawlessly. What a little workhorse

Great amp for the price. Not the most tunable amp but it sounds great and is very efficient. Very powerful for the size.

I have a 2001 Harley Road glide, and mounted 2 of these in the fairing (on metal brackets purchased through hawg tunes) they work well, and no overheating issues. There are many install kits available but I made my own wiring harness, and had no trouble getting them installed. A tight squeeze fitting them in, but it can be done. They are powering 3 sets of Polk 6.5 inch 2 way speakers. Great amps, awesome performance and sound. Also I recommend if you do this, to upgrade to a better battery, I used an Odyssey.I have received many compliments on this setup. You will not regret getting these amplifiers.

This amp may be small in size, but it makes great power - used it to replace a dead amp in my car. There's no comparison between the one I replaced and this one - the Soundstream is 4x more powerful and smaller in size! Crazy.The only gripe I have is the crossover frequency is fixed at 80 Hz, it is not variable - but at this price you really can't complain!Seems Amazon only lists the bridged output. Here's the full power rating from the manual:RMS Power @ 14.4 V------------------4 Ohm: 100W x 42 Ohm: 130W x 44 Ohm Bridged: 260W x 2

Had it for 9 months (actually only used it for 6 months) and it started failing. I called Soundstream and since I installed it myself it only had a 3 month warranty. There was crossover feedback between the front and rear outputs so it was all internal and nothing I could have done. I've also installed dozens of head units and amps over the years with no problems. A better alternative for the same money is the POWER ACOUSTIK RZ4-2000D RAZOR Nano 4 Channel 2000 Watt Amplifier. It looks nearly identical in all ways (inputs, outputs, shape) but is clearer and more powerful than the PN4 so the internals must be different. I just bought the RZ4 a month ago and it is a monster even though I think the specs are slightly overrated.