Articles & Videos: 5-channel Amplifiers

Car amplifier buying guide
by Buck Pomerantz

This guide will help you choose the right amplifier - number of channels and how many watts per channel - for your sound system.

Video: car amplifier channels
by Zak Billmeier, Ken Nail

One of the first steps in choosing an amplifier for your car audio system is to decide how you intend to use the amplifier, and thus how many channels it should have. This short video gives you a quick overview to help answer that question.

Video: car amplifier power
by Zak Billmeier, Ken Nail

We describe the basics of deciding how much power an amplifier should have when you're trying to match it to your speakers or subwoofers.

Video: car amplifier build quality
by Zak Billmeier, Ken Nail

If you can get the same amount of power from two different amplifiers, is there any reason to buy the higher-priced amp? What are you getting for that extra money? We'll discuss the differences in build quality and performance between lower-priced amplifiers and more-expensive options.

Video: car amplifier features
by Zak Billmeier, Ken Nail

This short video describes some of the common features you should look for when you're shopping for an amplifier for your car audio system. Not every amplifier will have all of these features, so make sure the amp that you get has the ones you need.

Car amplifiers FAQ
by Buck Pomerantz

Where should I mount my amp? What wiring do I need? Does any of it come with the amp? What size power and ground wires do I need for my amplifier? How much air space do I need around my amplifier? What's the biggest amp I can hook up to my car's electrical system? Plus more.

Car amplifiers glossary
by Crutchfield Writing Team

Learn about the features and technical specifications found in today's amplifiers.

Tuning your subs
by Buck Pomerantz

Having a subwoofer in your car is a good thing, but if the subwoofer isn't properly tuned, it won't sound as good as it should. This article describes how to adjust your amplifier so that your subwoofer will sound just the way you want it to.

Now that the front door speakers were in — and we could ably demonstrate the difference between the front aftermarket and rear factory speakers — it was time to install the new rear...

This step-by-step guide will help you make sure that your amps and subs are evenly matched and work well together, whether you have the subwoofers and want to find the amplifier to run them, or you've already got the amp and want the right subs for it.

The Alpine PDX-V9 is the "do it all" version of Alpine's popular digital PDX amps. It's small, stackable with other PDX amps, and gives you 100 watts RMS x 4 for your speakers, plus 500 watts RMS x 1 to drive a sub. Serious power, with a tiny footprint.

Setting amp gain correctly matches your amp's input level with your receiver's output level, resulting in maximum distortion-free music and minimum background noise. Here's a method for setting amp gain fast and accurately using test tones.

Amps make music fun
by Buck Pomerantz

When you add an amplifier to a system, the sound becomes higher, wider, and more realistic — like the band's playing on top of your dashboard and you're right there among the musicians.

One of our employees shares the excitement of having an amplifier in her car for the first time. We installed the Rockford Fosgate Punch P400-4 amplifier in her car, and she's more excited than ever to listen to her favorite tunes on the way home!

Minivan makeover
by Buck Pomerantz

Like most high schoolers, Morgan didn't particularly enjoy getting stuck driving the family minivan. And a minivan isn't a vehicle you'd normally think of to put in a rockin' aftermarket sound system. Now, it sounds better than a new car's stereo and she has a place to plug in her iPhone, too.

Lynn wanted better sound in her minivan, but didn't want to lose some factory features. So she installed a digital signal processor from Rockford Fosgate to take over the tunes, and added new speakers, an amp, and a sub for a complete overhaul.

A Rockford Fosgate system gave the family minivan a major audio overhaul while still keeping the manufacturer's dual DVD players intact for the kids.

Find what fits your car