I have 2 DC headsets, one is factory ANR 13.4 set from about 1996, and the other set a standard 13.4 set.
I could add the Adams electronics set to the non ANR set, or see if DC do a factory upgrade of my old ANR set to the new electronics.
As luck would have it, a chap at the club yesterday came in with a Bose X headset, so i took it up on my next lesson and did direct comparison with the DC ANR set. The student also tried the three different sets (DC Passive 13.4, DC ANR 13.4 and BoseX).
There is not much difference between the ANR sets. The Bose IS quieter than DC ANR, but not by enough to warrant chucking the DC's. DC's do have a definite background hiss at higher frequencies.
The student said the clarity of my voice through the Bose mic was improved over the DC mike, and I could notice a definite improvement to his clarity when I had the Bose on and he was using the DC sets.
I would be worried about build quality /strength of the Bose set though. They seem like a cheap plastic jap toy in comparison to a set of DC 's. The mike boom seems very flimsy where it fits to the headset, get it caught once on shoulder strap and it would probably be ripped clean out of headset.
They are very comfortable and light though, you almost forget they are on.
Our club has recently purchased 16 new sets of Peltor 8006's.
Do not let anyone else make the same mistake, they are F****ing awful. As a pair of them, (left and right seat) the audio is bad enough, the mike noise from them is horrendous
I let all my students use my spare DC 13.4's once they get themselves a set of earcovers and mike sock, so I do not have to listen to the noise from the peltors.