I've bought a pair of SR225 a while ago from a forum member (before that I've had SR80) and I love the Grado sound.
I'm using a PC with a M-audio sound card connected to an old Technics SU V40 integrated amp (for a pair of ordinary Sony speakers) plus a Little Dot I+ headphone amp. It might be strange but I prefer the sound of the Grados coming from the Technics directly, it has a lot of power and a better soundstage than the LDI+. However I noticed that the Technics is causing a rattle noise on my left Grado channels at high or moderate volumes. The Little Dot amp produces absolutely no rattle even at higher volumes so obviously i't not a hair or something like that. Now I wonder is this a defect of the Technics amp or it is just its technical parameters that are somewhat not matching well with the Grados?
Anyway I want to add some more power, a little more bass and thickness to my Grados sound that the LDI+ seems too weak to produce. It sounds really crisp and clear but somewhat fragile and light, Especially for synth music this kind of sound is really unnatural and dull. It's good for let's say The Cure but for heavier rock/metal music it is too thin as well.
Ironically I just the LDI+ plus the SR80 a while ago although it should have produced even a lighter sound.
So what to do?
Buying a better or more appropriate integrated amp?
Or buying a higher class headphones tube amp? Or just fixing a damaged component of my current integrated amp. Or simply trying some other type of pads?
thanks in advances for your suggestions