Just to let you know, Not all of us that have both prefer the 225's over the 900's.
I love the 900's because they really sound good all the time.
From here on is
"just my opinion"
Hands down, you get more for your money with the 900's. Great soundstage, Better cable (braided outer jacket cable attached on left side earpiece),decent isolation, nice threaded 1/8th to 1/4 adapter included and someone actually paid attention to the design and comfort of the these phones as well as the sound.
The Grado's sound very good also but build quality, looks and comfort bring them down. Cheap headband with cheap vinyl covering and no padding. The roughest foam pads I have ever felt ,plus you will most likely spend another $30 on the flats and maybe $6 or $8 to try the modified senns pads. Then, they are terminated with a 1/4" plug. Probably will have to have the 1/8th adapter ($15). Wouldn't it be nice to at least have the option to order with 1/8th" plug?
In my opinion they don't sound better than the 900's, but they do sound different. If they cost $80 to $100 then maybe you could overlook the build quality and find the value in the sound but at the current price, I feel that they are taking advantage of the consumer.
Before you buy the 225's , at least listen to the SR 60's($69) side by side with the 225's($195). Heck, include the 900's too.The 225's sound a bit better but do they sound $125 better? Side by side, the 60's might beat the 900's for the cost difference.
About the only obvious difference you can see is the 225 emblem and the 60's have an 1/8th"plug (1/4"adapter is included). The 60's appear to be the value in the Grado line.
Most here know what the acutal cost to build the RA-1 is and I suspect that the same is true of the 225's.
After buying the 225's, I honestly felt that I had been taken advantage of.
If I didn't own them already, I wouldn't buy them.
Maybe the 60's though
Again, if you missed it above...this is
"just my opinion"