All of our train horns have the same sound, or VERY similar “sound”. The difference in the kits is how loud they are. (number of horns, amount of air..etc)

The Bandit 400 is going to be on the lower end of the db scale when it comes to how loud it is.

Our loudest horns can reach above 160db, where the Bandit 400 will each approximately 130db.

You can hear a sample of the train horns sound here: http://www.trainhornsdirect.com/images/trainsound328.swf

To give you an idea of what the dbs mean….

Sound Chart: How Loud Is It?

Noise
Level
Sound Chart (db) Effect

Jet engine (near) 140
Firecracker 140
Rock concert 110-140
Boom box 120 Threshold of pain (125 db).
Thunderclap (near) 120
Stereo (over 100 watts) 110-125
Chainsaw 110
Jackhammer 110
Snowmobile 105
Airplane (near) 103
Garbage truck 100 Regular exposure of more than 1 minute risks permanent hearing loss (above 100 db).
Farm tractor 98
Motorcycle (near) 90 No more than 15 minutes of unprotected exposure recommended.
Subway 88
Lawnmower 85-90 Level at which hearing damage begins (85 db).
Television 70-90
City traffic noise 80 Level at which constant exposure may cause hearing damage.
Alarm Clock 80
Washing machine 78
Dishwasher 75 Long exposure to sounds less than
75 db is unlikely to harm ears.
Vacuum cleaner 70
Hair dryer 70
Laughter 60-65
Normal conversation 50-65
Refrigerator humming 40
Quiet room 40
Whisper 30
Rustling leaves 20
0 Threshold of normal hearing

Source: National Institute of Deafness and Other
Communication Disorders

I hope this helps and please let me know if you need additional information.