How To Power a Guitar Amp Outdoors Safely and Effectively

"This site contains affiliate links to products. We may receive a commission for purchases made through these links."

Sharing your music to a venue where a large number of people can hear it might be the answer to raising your confidence.

It can also help grow your fan base and get notoriety as a talented musician.

In relation to that, knowing how to power a guitar amp outdoors is essential for those who plan to perform in a space where an outlet is not guaranteed.

Let’s learn how to establish a power connection for your guitar amp and other related topics.

Types of Guitar Amplifiers

Before discussing how to power a guitar amp outdoors, let’s determine the four main types of guitar amps.

Tube Amp

A tube amplifier is an amplifier that amplifies the electric signals generated by a bass or acoustic guitar using vacuum tubes or valves.

For electrically-powered string instruments, such signals are generated by pickups, and they transmit via the tubes, which will get amplified once they exit.

Several guitarists favor tube amps because of their warm, broad tone and “natural” distortion.

Most tube amplifiers feature distinct channels that quickly turn from clean to distorted tones.

However, tube performance might degrade with time.

Hence, this amp needs proper maintenance and replacement if necessary.


A solid-state amp is primarily designed with power sections, and a preamp made up of transistors.

This type is well-known for its longevity and dependability.

Typically, solid-state amplifiers provide a highly “cleaner” sound compared to tube amps.

It is popular among musicians for practice purposes, and professionals frequently use them on tour since they require little maintenance.

Solid-state amps often sound great from the bottom up when it comes to practicing volume.

They are beneficial for bands with a wide range of songs and need to flip between genres, such as heavy metal and pop.


A modeling amp, also called a digital amp, is the modern iteration of an amplifier.

It works by “modeling” the sound of a variety of traditional tube amps using software technology.

In simpler terms, a modeling amp can simulate the sound quality of other amps.

Many models are designed with built-in effects such as chorus, delay, and others to make the produced sounds more dynamic.

Since modeling amps primarily use computer components, they are lighter than solid-state and tube amplifiers.

Also, some models have analog or digital outputs with speaker emulation enabling direct connection to a recording interface.


A hybrid amp utilizes an actual valve or tube in combination with the solid-state power component of their amps.

This design effectively combines the advantage of each style of the amp into a single piece of equipment.

Its features can replicate a tube amp’s sound quality without the need for heavy power tubes, allowing it to be more portable.

Musicians who often play in a public space prefer the hybrid amp because it is easier to transport and the dynamic sound it can produce.

how to power a guitar amp outdoors

How To Power a Guitar Amp Outdoors

There are a couple of methods to establish a power supply for your guitar amp, such as:

Use a Battery-Powered Amp

Instead of looking for a power source, you can opt for a battery-powered guitar amp to make your setup more convenient.

When battery-powered amplifiers first hit the market, they were not ideal.

They didn’t provide a good tone, and the build quality needs a lot of improvement.

However, thanks to the advances in technology, portable amplifiers have become a reliable piece of equipment for every aspiring musician.

Today, many battery-powered amps are compact, yet the sound quality is excellent, even when using low-volume settings.

They are designed to provide a superb sound, making them ideal for those who perform in multiple places in a short time.

Via a Gas Generator

It’s common for outdoor rock shows to use generators because they typically produce more power than standard batteries.

As such, you can use a gas generator as a power source for your guitar amp.

However, it’s highly recommended to use an inverter type because it is capable of delivering clean power.

It’s also quieter than standard gas generators, which significantly benefit any music-related events.

When using this equipment, you need to check its wattage and your guitar amp’s voltage requirement.

For example, an 800-watt generator is able to sustain 6.6 amps.

If it draws less than the total amps you have, there should be no issue with your power supply.

If you feel that a gas generator is too expensive, fortunately, some shops offer rental services for such equipment.

Using Your Car Battery

A car battery is a practical solution in powering a guitar amplifier outdoors.

You need to convert the DC power from your car battery to AC to accomplish this.

As you may know, AC power is the one running on the power outlets of our homes.

Most automobile batteries are powerful enough to operate a 50-watt or even a 100-watt amp.

Keep in mind that using it for a long time will quickly drain any standard car battery.

If you go for this option, you have to be aware that you cannot directly connect your guitar amp.

You need to have a pure sine wave inverter in making your car battery a power source.

Other power inverters are not acceptable or safe for a guitar amplifier.

Before you purchase a power inverter, ensure that it has a red and black clamp.

You’ll be connecting these clamps to your batteries, with the red clamp attached to the positive and the black clamp on the negative.

The inverter must be off before attaching the clamps.

There is usually one or multiple sockets on power inverters.

You could either directly power your guitar amp from the inverter or utilize an extension cable to power several electronics.

Successfully Powering Guitar Amps Outdoors

If all options are not feasible, you can look for the nearest establishment that will allow you to connect to their outlet.

Bring an extension cord and see if the manager or owner will permit you to plug it into their power source.

Regardless of how long you’ll use their electric supply, offer them a fee for their trouble if they are reluctant.

Whatever you end up using, always keep your guitar amp and other instruments safe.