5 Quietest 50 Amp Generators

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The power of 50 amp generators can be helpful for RV camping or your house but they often make a lot of noise. Discover the quietest 50 amp generators instead.

  1. Powerhorse 7500I – Quietest 50 amp generator (55 dBA to 63.9 dBA) (7500 peak watts)
  2. GENMAX GM9000iE (62 dBA) (9000 peak watts)
  3. Pulsar PGD95BISCO (62 dBA) (9500 peak watts and dual fuel)
  4. GENMAX GM7250iEDC – Budget-friendly 50 amp generator (63 dBA) (7250 peak watts)
  5. A-iPower SUA12000ED (69 dBA) (12,000 peak watts)

While not many people will need this much power, it is worth noting that these generators will not be able to offer 50 amps at 240 volts continuously (would need 12k running watts).

You also want to know that generator brands typically use a 25% load at 23 feet for their decibel ratings but there are no rules that require this so they could technically give different details.

Since I don’t have a warehouse of 50 amp generators (yet?), I do have to use these brand decibel ratings and customer reviews to make the selection of the quietest models available.

Brand ModelQuiet
Operation
Power
Capacity
Run
Time
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Powerhorse 7500I9.57.58.51.5%96.585.5$$$$Check Price
GENMAX GM9000iE8.58.58<5%78.58.56.5$$$Check Price
Pulsar PGD95BISCO8.58.58“Clean”7.588.55.5$$$$Check Price
GENMAX GM7250iEDC8.577<5%778.58$$Check Price
A-iPower SUA12000ED79.57.5No
Inverter
78.57.56.5$Check Price
Quietest 50 amp generators performance on a score of 10 in important categories*

*Compared to similar generators and sometimes based on customer input

1. Powerhorse 7500I

The Powerhorse 7500I is the quietest 50 amp generator on the market with 55 dBA at 25% load and 63.9 dBA at rated load.

To make clear just how silent this is, a regular conversation is about 60 decibels (dB).

On top of the quiet operation, this is also just a relatively good 50 amp generator with a nice amount of very happy customers.

Something you do want to keep in mind is that the 6500 running watts are on the smaller side for 50 amp generators.

Pros

  • Quietest 50 amp generator with 55 dBA at 25% load and 63.9 dBA at rated load
  • Powerhorse 7500I offers 7500 starting watts, 6500 running watts, 50 amps, and 240 volts
  • Good run time of 16 hours at 25% load
  • THD of 1.5%
  • Has electric start
  • Four GFCI outlets
  • Weight of 287 lb (130.2 kg)
  • Very positive customer reviews
  • 2 years limited residential and 90 days limited commercial warranties

Cons

  • Some people will find 6500 running watts lacking
  • Relatively short commercial warranty
  • Pricey compared to other 50 amp generators
  • Fuel efficiency is not that good

That means this Powerhorse 7500I may not be perfect for powering a big house with central air conditioning and similar big appliances and machines.

People who are looking for a quiet 50 amp generator for their RV also want to keep the relatively hard-to-move weight of 287 lb (130.2 kg) in mind.

You do want to know about these potential downsides but it is also worth noting that the Powerhorse 7500I is still a good generator.

The quiet operation, low THD, good run time, and two years residential warranty can be worth the investment if the 6500 running watts are enough for your power needs.

Brand ModelQuiet
Operation
Power
Capacity
Run
Time
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Powerhorse 7500I9.57.58.51.5%96.585.5$$$$Check Price
Powerhorse 7500I performance on a score of 10 compared to similar alternatives

2. GENMAX GM9000iE

The GENMAX GM9000iE is a quiet and powerful 50 amp inverter generator with noise levels of 62 dBA and 7600 running watts (and 9000 starting watts).

GENMAX GM9000iE

However, before investing in this model you do want to keep in mind that you are giving up some reliability in return for the low amount of decibels.

There are a decent number of cases where customers initially got a 50 amp generator that did not work optimally.

Issues like this also sometimes just show up relatively soon and GENMAX customer support is often not that helpful in these cases.

Pros

  • Relatively low noise levels of 62 dBA
  • GENMAX GM9000iE offers 9000 starting watts, 7600 running watts, 31.7/50 amps, and 240 volts
  • Nice run time of 10 hours at 50% load
  • Less than 5% THD
  • Weight of 233.7 lb (106 kg)
  • Electric and remote start
  • Four GFCI outlets
  • CO sensor
  • Parallel capability
  • There is also a dual fuel version
  • 1 year limited warranty

Cons

  • Relatively short warranty
  • Somewhat pricier
  • Decent number of cases where customers got a model that did not work as desired or early wear and tear

In my opinion, there are better 9000 watt inverter generators that are still reasonably quiet. Especially if you want some reliability for home backup power.

That being said, it is also still fair to say that there are a good amount of customers who are happy with their GENMAX GM9000iE.

It is also worth mentioning that the GENMAX GM9000iEDC is the dual fuel version which is helpful for people who want to use propane (LPG) too.

If you really want to avoid decibels, need more power than the Powerhorse 7500I, and plan to use your 50 amp generator for activities like RV camping, you could consider this option from GENMAX.

Something else people who want home backup power can do is get a second smaller and more reliable generator for the most essential appliances in case something goes suboptimal with the 50 amp GENMAX.

Brand ModelQuiet
Operation
Power
Capacity
Run
Time
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
GENMAX GM9000iE8.58.58<5%78.58.56.5$$$Check Price
GENMAX GM9000iE performance on a score of 10 compared to similar alternatives

3. Pulsar PGD95BISCO

The noise levels of 62 dBA of the GENMAX GM9000iE and the Pulsar PGD95BISCO are the same but they do vary in other ways which can influence your decision.

Pulsar PGD95BISCO

First of all, the Pulsar PGD95BISCO is a dual fuel 50 amp generator which makes it so you can generate electricity from propane too.

You do want to keep in mind that this function also raises the price of the generator a decent amount.

Besides that, the Pulsar PGD95BISCO also has 500 more peak watts when running on gasoline which can be helpful for getting big machines started.

Pros

  • Relatively low noise levels of 62 dBA
  • Pulsar PGD95BISCO offers 9500 starting watts, 7600 running watts, 50 amps, and 240 volts (gasoline)
  • Dual fuel function allows you to run on propane (LPG) too
  • Nice run time of 9.5 hours at 50% load
  • “Clean” THD so suited for sensitive electronics
  • Electric and remote start
  • Four GFCI outlets
  • CO sensor
  • Weight of 281 lb (127.5 kg)
  • 3 years limited warranty

Cons

  • Not a lot of customers yet
  • Oil refill system could be better
  • Pricey compared to other 50 amp generators

The main downside of the Pulsar PGD95BISCO is that it does not have that many customers yet.

This is relevant because customer reviews sometimes uncover unexpected downsides or quality control issues of generators.

Additionally, the Pulsar PGD95BISCO is somewhat heavy which makes it just a bit less optimal for RV road trips where you have to move your 50 amp generator a lot.

In short, if you want a quiet dual fuel 50 amp generator that looks more promising in terms of quality than the GENMAX dual fuel, this Pulsar PGD95BISCO could be right for you.

Brand ModelQuiet
Operation
Power
Capacity
Run
Time
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Pulsar PGD95BISCO8.58.58“Clean”7.588.55.5$$$$Check Price
Pulsar PGD95BISCO performance on a score of 10 compared to similar alternatives

4. GENMAX GM7250iEDC

If you are on a budget but still want a quiet generator that can handle 50 amps at 120 volts you could consider the GENMAX GM7250iEDC.

Similar to the last few options you can definitely consider the 63 dBA to be relatively quiet.

At the same time, you do need to keep in mind that the GENMAX GM7250iEDC is the least powerful 50 amp generator on this list with 7250 starting and 6000 running watts.

And even if this is good enough for you, the small number of customer reviews and short warranty does involve some amount of risk.

Pros

  • Relatively low noise levels of 63 dBA
  • GENMAX GM7250iEDC offers 7250 starting watts, 6000 running watts, 50 amps, and 240 volts (gasoline)
  • Dual fuel function allows you to run on propane (LPG) too
  • Decent run time of 10 hours at 25% load
  • Less than 5% THD
  • Electric and remote start
  • CO sensor
  • Parallel capability
  • Weight of 144.6 lb (65.6 kg)
  • 1 year limited warranty
  • Somewhat budget-friendly

Cons

  • Relatively short warranty
  • Not a lot of customers yet

If you assume the GENMAX GM7250iEDC will be similar to other GENMAX generators you can expect a decent number of defects and not the most helpful customer support.

On the other hand, being able to get a portable dual fuel 50 amp inverter generator at this price point is potentially a nice benefit too.

In combination with the somewhat easier-to-move weight of 144.6 lb (65.6 kg) the GENMAX GM7250iEDC could be a good choice for people who want a budget-friendly way to run on propane during their RV camping trips.

If you are interested in home backup power you likely want to get a more reliable smaller generator too to make sure appliances like your fridge and freezer will be able to keep running.

Brand ModelQuiet
Operation
Power
Capacity
Run
Time
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
GENMAX GM7250iEDC8.577<5%778.58$$Check Price
GENMAX GM7250iEDC performance on a score of 10 compared to similar alternatives

5. A-iPower SUA12000ED

If you are interested in a quiet 50 amp generator you likely want a lot of power.

While the A-iPower SUA12000ED does have a few issues you want to know about, it should be clear that the 12,000 starting watts and 50 amps will be enough to power a lot.

A-iPower SUA12000ED

With 69 dBA this model is not the quietest on the list but you will likely not find any generator around this power level that is more silent.

The first downside you do want to know about is that the A-iPower SUA12000ED is not an inverter generator.

To run sensitive electronics you will need your own inverter to “clean up” the electricity.

Pros

  • A-iPower SUA12000ED offers 12,000 starting watts, 9000 running watts, 50 amps, and 240 volts (gasoline)
  • Dual fuel function allows you to run on propane (LPG) too
  • Nice run time of 14 hours at 25% load
  • Electric start
  • Weight of 228 lb (103.4 kg)
  • 2 years limited residential warranty
  • Decent number of customers
  • Relatively budget-friendly

Cons

  • Noise levels of 69 dBA may be too high for your preferences
  • No inverter so not suited for sensitive electronics (unless you have your own inverter)
  • Decent number of cases of early wear and tear

Secondly, there are just a few too many customers with negative experiences to call this a reliable generator.

These negative experiences tend to involve early wear and tear which makes the A-iPower SUA12000ED function suboptimally or not at all.

Three plus points that do make this relatively quiet 50 amp generator just a bit more attractive are the dual fuel function, nice run time, and budget-friendly price.

That being said, unless you really need 12,000 starting watts and 9000 running watts, the downsides are likely enough to say no to the A-iPower SUA12000ED.

If you do want to give this model a chance you may also want to make it so you have a more reliable second generator as backup power for important devices and tools.

Brand ModelQuiet
Operation
Power
Capacity
Run
Time
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
A-iPower SUA12000ED79.57.5No
Inverter
78.57.56.5$Check Price
A-iPower SUA12000ED performance on a score of 10 compared to similar alternatives

Things to consider when choosing a quiet 50 amp generator

Brand decibel ratings and customer reviews are the main details that influence the ranking of the quietest 50 amp generators.

At the same time, you likely want at least some idea of how quality these generators are too.

The other things to consider when choosing a quiet 50 amp generator are:

  • Run time, power capacity, outlets, portability, etc.
  • User reviews
  • Anecdotal reviews from experts
  • Price
  • Brand trustability and reputation

If a pick seems interesting click it to see the online prices.

What is the quietest 50 amp generator?

The quietest 50 amp generator is the Powerhorse 7500I with sound levels of 55 dBA to 63.9 dBA (25% to 100% rated load).

If you have enough with the 6500 running watts, this is also just generally a good inverter generator.

People who want more power may prefer the GENMAX GM9000iE (7600 running watts) with its 62 dBA instead.

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Author:

Mats is the founder and head editor of Generator Decision. With a combination of critical thinking, tireless research, and a healthy interest in electronics he helps people find the right generators and how to use these. At this point in the journey, Mats has done research on hundreds of portable generators.