Cerebral_Mamba,
Have you let the SR-325is break in? I found that the phones were EXTREMELY unlistenable for the first 50 hours or so (so much so that I had to put them down and let them play on my desk at times), and at about 100 they stabilized. We had a meet the other day here in San Jose, and I commented to someone that it is really unfortunate that the 325i have such a steep break-in period... they really should come with a warning of some sort. I wouldn't be suprised if most everyone returned them, only to get rid of one of Grado's best headphones. And yes, I have a pair of SR-325 with around 400 hours on them to compare to the SR-325i to serve as a reference point. If interested, the 325i is a league above the 325, which I can discuss in greater detail if anyone is interested.
At that meet, I was able to compare my broken-in 325i to both the RS-1 (I think this pair was broken in) and PS-1 (only about 5 hours on them). The 325i sounded better than both. However, as I was listening to the PS-1s, I was guessing that they were not broken in, and the owner confirmed this after I gave him my honest impression. They were way too bassy and way too "in your face." However, behind this was a sound like the 325i, but richer. My guess is once broken in, the PS-1 would sound much like the 325i, but richer. Anyway, point is, you need to let Grados break in.
Since the original post in this thread was very broad, I will continue. People are quick to judge headphones without adequate equipment. Here are some suggestions for anyone willing to dabble in DIY that will make Grados and Senns sing:
Amps
I own both a Zen by Marcello Pellerano (see
http://headwize.com/projects/showfil...lerano_prj.htm and
http://www.ptsoundlab.com/ when Pascal adds this page to his site again - I adopted a few of Pascal's changes to Marcello's amp, and then used components I saw fit) and a Dynalo. The Zen is a little warmer sounding than the Dynalo, but both sound terrific with the Grados. Also, the Zen in stock configuration has some roll-off at the top end to tame the SR-325 "brightness." I have yet to plug HD650s (as I don't yet own a pair) into the Zen, so I cannot comment here. Senns sound great on the Dynalo with the right DAC (see below). The Dynalo should cost ~$250 to build (depends on which PSU you use), and the Zen ~$400.
The Dynahi is a little better sounding than the Dynalo, but costs more to build. It is also a more challenging build given the heat involved. Both the Grados and Senns sound great with the Dynahi.
In sum, unless you are ruling out DIY, go for the Dynalo. It is by far the best bang for your buck. Contact Dgardner for boards... I think he still has some left.
DACs
This has got to be the most overlooked component. After all, garbage in, garbage out, right? Both the Senns and Grados can significantly benefit from a good DAC.
I truly cannot recommend a commercial DAC, but can recommend one that I recently built for about $500. See
http://users.verat.net/~pedjarogic/audio/. Experienced builders had said it was the best DAC they had heard, which I'm starting to believe after hearing the DAC1 this weekend. Anyway, regarding the DAC's effect on sound...
Take the Senns for example. I have read over and over that they do not accurately produce bass, that the bass is weak, etc. And the owners then justify this by saying that it's okay since they only listen to jazz, classical, etc. Since I listen to most everything but country, I was expecting to walk away from a HD650 audition relieved that I didn't have to plunk down the money for a set. And this was indeed my impression after hearing them through the DAC1 (although the Dynahi did do a lot to make up for DAC1 deficiencies re i.e. rock, I might add). However, after playing my TDA1541A DAC through the Dynahi, I experienced what I have yet to read about: accurate bass reproduction through the HD650s. Rock and techno began (I am a Grado owner after all
) to resemble the sweet sound that I have come to expect from my SR-325is. In short, this faithful Grado owner now has to get a pair of HD650s.
A good DAC can also reduce some of the less-desirable features of the Grados. For example, my TDA1541A significantly widens the soundstage and sets you back a few rows when listening to my SR-325i.
So in sum, let your 325i break in, and play them through good equipment. You may be suprised at the result.
Regards,
Bryan