GMG gets this question a lot! Many opinions can be had about the noise level of MEP-002A and MEP-003A diesel generator units.
To protect your hearing around any engine or machinery, wear hearing protection! It’s cheap and your friends and family will thank you when you’re not screaming at them or the TV is blasting!
Drum-roll….
The MEP-003A sound and noise level at 25 feet is only 77 dbA. This is without any sound attenuation or acoustic suppression kit (ASK).
The MEP-002A sound and noise level at 25 feet is only 79 dbA. This is without any sound attenuation or acoustic suppression kit (ASK).
For general reference, a passenger car at 65 mph at 25 ft is around 77 dbA; a freeway at 50 ft from pavement edge at 10 a.m. is around 76 dbA. Living room music can be around 76 dbA). Garbage disposal, dishwasher, average factory, freight train (at 15 meters) can reach 80dbA. Car wash at 20 ft (89 dbA); propeller plane flyover at 1000 ft (88 dbA); diesel truck 40 mph at 50 ft (84 dbA); diesel train at 45 mph at 100 ft (83 dbA). Food blender (88 dbA); milling machine (85 dbA); garbage disposal (80 dbA).
Generac doesn’t even publish db ratings for any of their portable units (e.g. their GP series). In their Q&A forum, they state: “We do not list the decibel (noise) rating of our portable generators. This is because there is no industry standard for testing decibel ratings on portable generators. Therefore, any results can be misleading or inaccurate.” This is COMPLETE BS! They scream louder than MEP002A and MEP003A units!
Honda’s largest “Work” generator, their EB10000 (10kw), which they claim as having the “Best fuel efficiency and lowest noise rating in its class,” has a db rating of 76 dbA. Unfortunately, they do not specify the distance from the unit (which is absolutely critical!). So, it’s safe to say that the MEP-002A and MEP-003A units are extremely similar to the largest/best Honda generator available. My personal opinion is that a well-tuned MEP002A or MEP003A isn’t that load at all, esp. at 25 feet. It is no louder than a high-end Honda generator. GMG tunes every unit we sell to minimize noise and maximize performance.
For comparison’s sake here are a bunch of examples of noise levels for various items:
Note: these are examples only and may not apply to your specific work site. Noise-induced hearing loss results from a combination of high sound levels and extended periods of exposure to sounds above 85 dBA. If the level has Lex behind it it means it was measured or is equivalent to an eight hour shift. If the level only has dBA than it was a spot level check.
Agriculture:
- Augers 98-102 dBA Lex
- Orchard Sprayer 85-101 dBA Lex
- Tractors (no cab) 92-94 dBA Lex
- Tractors (with cab) 77-80 dBA Lex
Automotive:
- Autobody Technician 83-96 dBA Lex
- Brake/exhaust Mechanic 82-95 dBA Lex
- Customer Service, Manager ,and Parts Person 77-83 dBA Lex
- Detailer 97 dBA Lex
- Mechanic 77-102 dBA Lex
- Painter 88-99 dBA Lex
- Partsman 80 dBA Lex
- Service Manager-Tire Shops 84-88 dBA Lex
- Tire Installer 81-96 dBA Lex
Construction:
- Carpenter 86-97 dBA Lex
- Carpenter, Framer 91 dBA Lex
- Concrete Worker 83-105 dBA Lex
- Drywall installer 89-91 dBA Lex
- Electrician 89 dBA Lex
- Elevator installer 96 dBA Lex
- Hoist operator 100 dBA Lex
- Ironworker 93 dBA Lex
- Jackhammer Op 91 dBA Lex
- Labourer 84-94 dBA Lex
- Mobile Equipment Op. 91 dBA Lex
- Plumber 90 dBA Lex
- Steel Stud installer 93-98 dBA Lex
- Tile Setter 92 dBA Lex
- Welder 92 dBA Lex
Entertainment:
- Casino Dealer 78 dBA Lex
- Fitness Instructor 90-92 dBA Lex
- Nightclub 91-115 dBA Lex
Fishing:
- Compressor 90-105 dBA Lex
- Deck 88-100 dBA Lex
- Engine Room 90-114 dBA Lex
- Galley 75-80 dBA Lex
- Sleeping quarters 50-80 dBA
- Vessel repairs 70-100 dBA Lex
- Wheelhouse 80-90 dBA Lex
- Winch 90-100 dBA Lex
Hospitals:
- Food Services Worker 78-84 dBA Lex
- Laundry Worker 83-89 dBA Lex
- Maintenance 86-88 dBA Lex
- Physical Plant Engineer 81-93 dBA Lex
- Pot Washing/Dishwashing 80-88 dBA Lex
- Sterilization 77-80 dBA Lex
Logging:
- Boom Boat 87 dBA Lex
- Dozer operator 97 dBA Lex
- Faller 102 dBA Lex
- Landingman 108 dBA Lex
- Loader Operator 88 dBA Lex
- Log Sorter 90 dBALex
- Logging Truck Driver 88-96 dBA Lex
- Rigging Slinger/Choker 75-80 dBA Lex
- Skidder Operator 98-100 dBA Lex
- Yarder Operator 91-93 dBA Lex
Mobile Equipment Operators:
- Airtrack drill operator 106 dBA Lex
- Cat Grader 82 dBA Lex
- Concrete Batch Plant Operator 81 dBA Lex
- Dozers (enclosed and open) 89-103 dBA Lex
- Excavator 86-90 dBA Lex
- Front End Loader 85-91dBA Lex
- Labourer (road construction) 85-86 dBA Lex
- Mobile Crane Operator 97-102 dBA Lex
- Offraod Truck 82-90 dBA Lex
- Open Packer 95 dBA Lex
- Rock Crusher Operator 98 dBA Lex
- Scraper Operator 96 dBA Lex
- Skidstear Operator 96 dBA Lex
Municipalities:
- Backhoe Operator 88 dBA Lex
- Electrician 89 dBA Lex
- Engineer 96 dBA Lex
- Grader Operator 88-90 dBA Lex
- Labourer 85 dBA Lex
- Lifeguard 78-90 dBA Lex
- Mechanic 83-90 dBA Lex
- Sewer Flushing 100 dBA Lex
- Sewer Installation 89-100 dBA Lex
- Sewer Worker 88-100 dBA Lex
- Street Cleaning 89 dBA Lex
- Truck Driver 86-98 dBA Lex
- Welder 88-94 dBA Lex
Public Schools:
- Automotive 83 dBA Lex
- Band 88 dBA Lex
- Bus Driver (gas) 83 dBA Lex
- Food Service 83 dBA Lex
- Grounds keeping 93 dBA Lex
- Metalworking 84 dBA Lex
- Music teachers 86 dBA Lex
- PE teachers 86-89 dBA Lex
- Tech Ed teachers 87 dBA Lex
Pulp Mills:
- Bleach Plant 86-91 dBA Lex
- Millwright 86-92 dBA Lex
- Paper Machine Tender 94-98 dBA Lex
- Screen Tender 86-92 dBA Lex
Roofing:
- Membrane 82-89 dBA Lex
- Roofer 82-98 dBA Lex
- Roofer (shake) 95 dBALex
- Shingle 81-93 dBA Lex
- Tar/Gravel 84-98 dBA Lex
Retail Food:
- Bakery Workers 78-85 dBA Lex
- Kitchen Workers 75-87 dBA Lex
- Meat Cutters 77-90 dBA Lex
Sawmills:
- Cut-off Saw Operator 82-96 dBA Lex
- Debarker 91-94 dBA Lex
- Dropsorter 95-101 dBA Lex
- Edger Operator 87-102 dBA Lex
- Green Chain 79-89 dBA Lex
- Sawfiler 83-93 dBA Lex
Waste Management:
- Banging on garbage bins (5 feet away) 100 dBA
- Banging on bins:
- Garbage Truck, cab (window open) 91 dBA
- Garbage Truck, cab (window closed) 88 dBA
- Behind Garbage Truck (while compacting) 89 dBA
- Behind Garbage Truck (30 feet away) 98 dBA
- Sewer Truck cab 94 dBA
OFF THE JOB:
Environmental:
- Heavy traffic 70-80 dBA
- Thunder clap 120 dBA
Home & Garden:
- Air conditioner 60-72 dBA
- Alarm clock ring 80 dBA
- Average home inside 50 dBA
- Hedge cutter 95 dBA
- Leaf Blower up to 115 dBA
- Chain Saw up to 125 dBA
- Dishwasher 54-85 dBA
- Food blender 88 dBA
- Lawn mower 80-95 dBA
- Vacuum cleaner 60-82 dBA
Miscellaneous:
- Aircraft, jets (cruising) 71-83 dBA
- Ambulance siren 120 dBA
- Apollo liftoff 188 dBA
- Fishing (power boat) 60-115 dBA
- Jazzercize class 90-92 dBA
- Motorcycle 80-115 dBA
- Movies 80-85 dBA
- Movies 80-118 dBA
- Private aircraft 80-110 dBA
- Referee whistles 103-107 dBA
- Snowmobile 86-100 dBA
- Sporting events 95-100 dBA
- Truck Show 90-110 dBA
- Video Arcade 80-110 dBA
Music:
- At the bar 90 dBA
- Car stereos up to 154 dBA
- Clubs and discos 91-115 dBA
- Home stereo up to 115 dBA
- Personal stereos 60-120 dBA
- Rock concerts 90-125 dBA
- Symphony concerts 80-100 dBA
Firearms Note: a single exposure to gunfire can cause permanent hearing loss.
- .22 rifle 132-139 dBA
- Hand guns 150-167 dBA
- Rifles 156-167 dBA
- Shotguns 147-149 dBA
Toy box:
- Balloon pop 157 dBA
- Bicycle horn 143 dBA
- Cap gun 99-156 dBA
- Hammer & peg board 94-97 dBA
- Rattles 75-91 dBA
- Toy rifle 143-153 dBA
- Wind-up drummer 88-91 dBA
Workshop:
- Circular saw 113 dBA
- Electric drill 94 dBA
- Power saw 95-115 dBA
- Router 85-110 dBA
- Snow blower 85-91 dBA
Even more comparisons:
Noise Source | Decibel Level |
comment |
---|---|---|
Jet take-off (at 25 meters) | 150 | Eardrum rupture |
Aircraft carrier deck | 140 | |
Military jet aircraft take-off from aircraft carrier with afterburner at 50 ft (130 dB). | 130 | |
Thunderclap, chain saw. Oxygen torch (121 dB). | 120 | Painful. 32 times as loud as 70 dB. |
Steel mill, auto horn at 1 meter. Turbo-fan aircraft at takeoff power at 200 ft (118 dB). Riveting machine (110 dB); live rock music (108 – 114 dB). | 110 | Average human pain threshold. 16 times as loud as 70 dB. |
Jet take-off (at 305 meters), use of outboard motor, power lawn mower, motorcycle, farm tractor, jackhammer, garbage truck. Boeing 707 or DC-8 aircraft at one nautical mile (6080 ft) before landing (106 dB); jet flyover at 1000 feet (103 dB); Bell J-2A helicopter at 100 ft (100 dB). | 100 | 8 times as loud as 70 dB. Serious damage possible in 8 hr exposure |
Boeing 737 or DC-9 aircraft at one nautical mile (6080 ft) before landing (97 dB); power mower (96 dB); motorcycle at 25 ft (90 dB). Newspaper press (97 dB). |
90 |
4 times as loud as 70 dB. Likely damage 8 hr exp |
Garbage disposal, dishwasher, average factory, freight train (at 15 meters). Car wash at 20 ft (89 dB); propeller plane flyover at 1000 ft (88 dB); diesel truck 40 mph at 50 ft (84 dB); diesel train at 45 mph at 100 ft (83 dB). Food blender (88 dB); milling machine (85 dB); garbage disposal (80 dB). | 80 | 2 times as loud as 70 dB. Possible damage in 8 h exposure. |
Passenger car at 65 mph at 25 ft (77 dB); freeway at 50 ft from pavement edge 10 a.m. (76 dB). Living room music (76 dB); radio or TV-audio, vacuum cleaner (70 dB). | 70 | Arbitrary base of comparison. Upper 70s are annoyingly loud to some people. |
Conversation in restaurant, office, background music, Air conditioning unit at 100 ft | 60 | Half as loud as 70 dB. Fairly quiet |
Quiet suburb, conversation at home. Large electrical transformers at 100 ft | 50 | One-fourth as loud as 70 dB. |
Library, bird calls (44 dB); lowest limit of urban ambient sound | 40 | One-eighth as loud as 70 dB. |
Quiet rural area | 30 | One-sixteenth as loud as 70 dB. Very Quiet |
Whisper, rustling leaves | 20 | |
Breathing | 10 | Barely audible |
We are not aware of official specs for the ASK. It is dramatic however and works very well. Yes, we have them in stock, but only integrated with a unit. We have a MEP002A Military Generator with ASK here.
So what is the db rating with the ASK? Is it in line with “whisper” quiet of a multiquip DCA25USI rated at 59db? And how much is it with an ASK, Do you have them?