A question: what is it about the MAD Ear+ Purist HD's sonic signature that makes it synergizes so well with Grados? And perhaps not so well with Sennheisers and other headphones?
My assumption had been that the MAD is an especially smooth amplifier with some treble roll-off that tames the (to my ears) somewhat harsh highs of Grado phones and makes them sing. Is there any validity to this assumption?
No treble roll off to my ears.I got rid of the occassional high end harshness by changing cpd.
Purist amp works well with other phones. I use it with my 701s as does a friend .
I believe originally Dr Peppard developed the amp with Sennheisers.
I have tried it with HD650s but dont want to commit myself on that pairing as I've never liked the 650s with any amp I've tried.