Showing posts with label Fostex T50RP. Show all posts
Showing posts with label Fostex T50RP. Show all posts

Monday, January 12, 2015

The most underrated headphone you can buy

Q: In your opinion, what is the most underrated headphone you can buy?

A: Personally, I think the most underrated headphone today is the Fostex T50RP. I'll explain why.

First, they are planar magnetic headphones, and at $100 an incredible value at a time when most planars are priced at 8-10x as much (or more). Of course planars used to be super common in the 70s and early 80s, but today they occupy a more high-end niche.

Second, T50s can be modded to become something that is way beyond what the stock T50 is. It's like they are Tony Stark when they are stock -- lovable but with specific idiosyncrasies, and then you mod them and they become Iron Man - incredibly powerful and capable of delivering truly stellar sound.

Now I agree that most headphone mods are hit-or-miss, because they are described by amateurs (often badly), and variations in methods between one modder and another means that no 2 mods sound the same. So if someone does the Kramer mod on their Koss KSC75s and you try to emulate them, you will never get exactly the same sound that Kramer got, because Kramer never detailed where specifically to drill the damned holes to make the modded KSC75 sound the sweetest.

But there are some mods that can clearly be replicated, and everyone doing the mods will have exactly the same effects as the original modder intended. For example the Sennheiser HD555 foam mod (all you do is take out the foam pad, that's the same mod no matter who does it) or the AKG Q701 bass mod (ditto with the little circular tape thingy) but standardized mods aren't just for mid fi headphones, they exist even for endgame setups, for example the Anaxilus mod for the Sennheiser HD800 (which I would argue is almost mandatory if you own a HD800).

The T50 has the advantage that it has been extensively modded, so there is a lot of stuff out there on what various mods do. But until a dude called bluemonkeyflyer posted his mod, these were hit-or-miss (or trade secrets, for those folks who modded T50s for a living). What bluemonkeyflyer did was to quantify everything he did, from posting FR curves associated with each specific alteration, to objective evaluations of alternatives, and specific results. In short, he took the "art" of T50 modding and made it into a "science".

Which means that anyone can mod the T50RP in a consistent fashion. From the materials used to the amounts of stuff you have to use, everything is well described on the Internet. My T50 is the only headphones that I have modded that sound exactly like I want them to -- by using an iterative, step-wise approach to modding them I tuned them to fit my musical tastes like a glove -- but more importantly, so can you.

Keep in mind that commercial headphones like the Mad Dogs and Alpha Dogs are T50 mods, so you know what you can achieve if you mod your T50 well.

Plus, what a wonderful way to spend time, making small sequential changes in how a pair of headphones sound, listening, modding, listening, modding some more, tweaking the SQ to match your desire.

In Kenneth Grahame's "The Wind In The Willows", the Water Rat says: "Believe me, my young friend, there is nothing—absolute nothing—half so much worth doing as simply messing about in boats."

Just substitute "in boats" with "with headphones".

Thursday, January 1, 2015

Modding the Fostex T50RP

There is probably more out there about how to mod the T50 than any other headphone. Yes, if done right you will have an awesome sounding pair of headphones. Keep in mind that the mad dogs are in essence modded T50 RP, so you have a sense of what a good mod can achieve.

Many headphone mods are one-offs and hard to reproduce but IMO the T50 can be modded in a consistent way to sound good. All you need is time, patience, and a steady hand.

In essence the mods for the T50 consist of the following

1) mass load the baffles inside the cup with something like blu-tac (I used uhu-tac)

2) create a bass port by closing off the vent with something like electricians tape. The size of the bass port determines the level of bass you want from the T50s.

3) use sound baffling material to line the inside of the cups (I used acoustimat that I got from an auto repair place. How I got my hands on the stuff is an interesting story, but probably not for this post)

4) Fill the cups with cotton wool / fiberglass insulation etc just like a speaker (I used cotton wool. Be sure to weigh the wool and use the same amount for both cups!)

5) create a reflex dot for the driver with transpore or paper tape, or add layers of transpore over the driver to redirect sound (I used two layers, it worked best for me. Others have used more or less)

6) change the pads (I used shure 840 pads but there are other options)

A good place to start might be to search for " bluemonkeyflyer T50RP mod". Do your research, make incremental changes and tune your T50 to just the way you want it to sound like!

My T50 is the only headphones I have modded that sound exactly like I want them to. It took me a while to get there, and some steps were hit and miss and required undoing, but in the end it has turned out to be a fun and enjoyable activity.