It's been a while since I have been able to post since late 2015, due to a job change and various issues. But during that time I was able to finish three sets of Rhydon's V6s with different wood cups. I posted much of the following over on the Emotiva site in response to a thread where a guy had a $1000 budget and was looking for a set of headphones. I thought I'd drop in here and touch base with it, and as I have time, I'll try to catch up from where I left off on page 252 or so, lol Seems theres this version 7 I need to find out about...
From the Emotiva post...
A road less travelled, but a lot of fun....
First of all, I agree with Keith; there's nothing like the holographic experience of good electrostats. I still vividly remember hearing "Yellow Brick Road" on a pair of stats a Nashville studio musician had in his home thirty years ago. They remain my high-water-mark reference standard. As Keith points out, you can get a set of Koss stats for about $600, an incredible sonic bargain viewed from that perspective. The down side of electrostats is you are pretty much regulated to a fixed listening position, with mobility minimized.
A couple of years ago, I got interested in headphones as a far more cost effective and versatile way of achieving high end sound for minimal cost. I own, or have owned, several respected headphones, some of which are considered best buys in their peer group, era, or price point. But as with all things audio, I found the law of diminishing returns becomes quickly evident, as well as the proliferation of esoteric BS.
Emotiva innately understands this phenomenon, and is very carefully strategic in positioning their products at the point at which cost and benefit cease to be linear, and past which cost (and BS) rises exponentially relative to quality. Since most Emotiva buyers are I think attracted by this core strategy, I thought some here might enjoy a slightly different approach to headphones.
I've also found with audio that in many cases past a point there is not necessarily a "correct" solution, but rather application of the most effective mix of inevitable engineering tradeoffs to a specific environment or situation. And largely it becomes simply a matter of personal preference. Not unlike selection of the "best" wine for a given meal.
So after listening to a number of headphones in search of some that offered stat's listening experience with portability, I quickly found that I could heard differences, but often just couldn't say which was "better". And I found that there was not necessarily any correlation between cost and quality. And that you often just trade off one priority for another.
One headphone solution that offered a similar sonic experience in some ways to electostats, at a very modest cost, while being very portable, are the often-recommended Grado SR80. I began to look at ways of modding them to improve them, and that search led me to discover that companies offer upgrades to the various component parts of headphones in the Grado physical format. You can change the headband, cups, cords, pads, etc. to your own preference. I then discovered a company call Symphones that designs their own drivers for the Grado architecture, and you can upgrade you Grados, or as I did, assemble some from scratch.
https://www.head-fi.org/f/threads/grado-modders-go-magnum.576717/ Lots of good info there.
I found that for about $300 you can build a really good set of headphones with custom cords, custom cups, which rival or exceed the best Grado's at a fraction of the cost of many peer products. I ordered custom cords ($50-100), as well as custom wood cups ($90-150), through Etsy vendors, and ordered the drivers from Symphones (about $100). For the headband, you can either use a set from a used or inexpensive set of Grados. or as I did, you can order a replacement headband for Sony MDR Studio phones for about $30-35. They have the added benefit that they fold up, and also have the words "Studio Monitor" stamped on them, which of course makes the headphone have immediate street cred, panache, and automatically sound better.
The hardest thing about assembling the headphones is soldering the cord to the printed circuit board on the drivers which can be tricky unless you have a very low wattage iron. But if thats an issue, one of the Etsy wood cup vendors will actually assemble your phones for you for a nominal charge.
Another interesting thing I found was that because the headphones are so close in proximity to your very sensitive hearing, the material in the cup, as well as the geometry and dimension of the cups, can have a profound effect on the sound. There are two schools of thought on this. One is that the cups should represent an inert platform in which to house the drivers. The other recognizes that all materials and structures resonate at some level, and instead of fighting this phenomenon, seeks to find a synergistic solution that optimizes the entire wholistic structure. Including interaction with your head, through changing pads, and or cup geometries.
In the same way that guitarists have a preference for the subtlety with which choice of wood and choice of pickups can affect a guitar's sound, I've have enjoyed experimenting -no, playing -
with trying different drivers and wood cups to see what effect changing these things has on the sound.
I currently have four sets of Grado based phones. One set is the very affordable ($100) and often-overlooked Allessandro Music version, essentially Grado SR80's tweaked to Allessandro specifications. I also bought three sets of Symphones drivers, as well as the Sony headbands, and identical cords for each. So then the only variable among the three (other than manufacturing tolerances for the drivers) is the type of wood used.
I selected cocobolo wood for one set, a dense wood often used to make clarinets and piccolos. Another set uses mahogany, a lighter less dense wood often revered by guitar makers for preserving harmonics. The third set is of rosewood, a little more dense than the mahogany, but not nearly as dense as the cocobolo. I very much enjoy hearing the difference in these headphones.
The cocobolo would likely be considered by many to be the most accurate of the bunch, and enjoy a more extended high end, and also low bass on the other end of the spectrum. Sound stage is as though you are on the front row witnessing the performance live.
The mahogany have a much more rich and detailed midrange and warmth in the bass, but lose a slight bit of high end extension. Soundstage is such that you are in the middle of the performers rather than observing them.
The rosewood offers the best high end of the bunch and excellent overall balance across the spectrum, and delineation between instruments in the mix.
Frankly, I can't say that any are my favorite, I enjoy each for their respective strengths. I often listen and compare the same cuts on each just to get a different perspective on the artists and musicians' work. It's also been fun for others to listen and compare them. Its fascinating to see how each wood lends certain qualities to the sound.