Tier 4 engines and noise

[Jay4200]

I was just reading an article about Teir 4 regulations and affects, and the article mentioned that the new engines are as much as 10dB quieter - which makes sense given all of the extra exhaust stuff that is strapped onto them. I see that as a benefit - both of my tractors are pre-emission standards and are both pretty loud. I wear earmuffs when running them. 10dB quieter would make a huge difference in comfort level. I was just wondering if those that have been out looking at new tractors noticed them being significantly quieter than the older ones.

 

[calhoun9001]

I have JD85E and its a very quiet tractor, Computer controlled, High pressure direct injection has a lot more to do with noise reduction then the exhaust system.

 

[bushhog28]

A lot quieter..with a cab you can actually hear a radio.

 

[MinnesotaEric]

A lot quieter..with a cab you can actually hear a radio.

I wear earplugs in my cab and turn up the radio. Still too loud for my dog ears. 83 dB at 2600 rpm.