Would need some spare caseholder(s) to fix my Lambda Signatures. Could also be a complete headband assembly.

FYI, some measurements of buds I own. Measured on my DIY measurement rig, most probably not comparable to measurements on other systems. I am providing this to give you some visual information on differences of the buds on this very measurement system.   All measurements taken with Cygnus...

  Here you go, V6 driver in Gradoesque cup, no pad!  

There is one thing I would definitely change about the V6 drivers and that is the lack of a protective mesh over the front of the driver. Even if you are careful, dust eventually settles inside the driver and in combination with the stuff Rhydon uses to "coat" the diaphragm with, these particles...

The Tascam headband (taken from a set of TASCAM TH Series TH-MX2 in my case) cannot be used on standard Grado-sized cups, which (at least my 325i metal cups) have an outer diameter of about 55mm. So the Tascam gimbals will be a little too large to fit. I made custom cups with an outer diameter...

A tiny glue dot will do the trick

Press-fit, but I have to admit that I am not a strong believer in the different wood, different sound stuff. Other variables (pads, cup depth, cup diameter, resonance reduction through damping, no air leakage between driver and cup[less sub-bass] etc.) are more important to me.

  Honestly, I do not know. I would be sceptical though. Mine absolutely needed the foam ring below the pleather in order to get the bass boost under control. The foam ring has the effect that it ensures a slight leak, which is necessary to ensure bass extension as linear as possible.   I have...

  I am using (p)leather pads (which come with MiHeadphones by Xiaomi) glued on a foam ring cut off a used L-cush:       Using pleather pads instead of leaky Grado ones I have to use internal damping to balance out the FR. Below you will find a pic with the damping materials I am using. I...

So, I have been finalizing my V6 build, and below you will find measurements. It certainly can't get any better for me. I have tried the usual approach, having them in an open cup with (aftermarket) L- cush. For me, unmodded there is too much of a U-shape, although the mids and highs are...

  These.   The V6 have replaced the Turbulent X (V5) drivers. The highs of the V6 are smoother.

Just a quick glance at some initial measurements:   Stock V6 with Flats: Strong bass (to be expected with 3 vents open), very nice midrange without any 2kHz shout, extended highs   Modded (damped plus hybrid leather pads) - looks kinda like HD800 FR now     @Rhydon: Very well done! I...

Now that is some exciting news Waiting for Rhydon to elaborate a little more on the new drivers.

Measurement mic like this, plus audio interface with phantom power supply and ARTA or REW measurement software.

I still had some wood lying around, so I decided to give my V5 drivers a final home and I guess this will be my last wood build: Karelian Birch with Rosewood inner sleeves and Ebony lids, hybrid pads (Grado l-cush plus Mi Headphones by Xiaomi pleather pads on top), Tascam headband. I am still...

  As a matter of fact, just using velours will not do the trick. I tested lots of (p)leather and velour pads together with internal damping ... Only Beyerdynamic DT250 pads on top of a foam ring scavenged from a cut-up Grado L-cush sounded good, flattening out the frequency response.

FWIW, measurements of different pads ...   1. on-ear (p)leather pads:   2. over-ear (p)leather:   3. on-ear foam pads:

What cup have you got, wood or plastic? Anyway, the paper plus cotton is rather thin and if you have a shallow cup, you can keep the open-cell foam disc just thick enough to exert some pressure of paper and cotton against the driver. But, the damping is absolutely necessary, there is no way...

You have to dampen the backwave of the driver by placing some absorbing/reflective material behind it. With this setup I am using three layers: some damping paper like coffee filter paper and over it a 5mm-layer of compressed cotton (both in the shape of a horseshoe, which has to cover the...

No, it won't be less airy. The damping is affecting the mid-bass and midrange mostly. The higher frequencies providing air will not be affected, really. In fact you may even have to bring them down a bit (felt in front of the driver), because the masking effect of the mid-bass hump will be gone...

GradoMagnums have a mid-bass hump and serious bass roll-off, combined with elevated higher frequencies. The reason for this is the foam pads that let too much bass energy pass through. But if you use velour or leather pads, there is simply too much mid bass. The solution is to combine both...

L-cush has different foam density and helps the Beyer pad keep the right distance from the driver! It's JUST 2 thirds of the L-cush glued to the back of the Beyer pad. Did LOTS of experiments (plus measurements), and this is just the right setup.

  It's easy: Cut off around 5-7mm from the top of the Grado L-cush and glue the remaining cush on the back of the Beyerdynamic Dt250 pad.

It has been a long time since I started this thread. Coming from the Grado modding crowd I took interest in the Magnums, then V4s, since the drivers were freely available, came at an acceptable price, and could be used in all sorts of housings. I then proceeded into the planar world, among...

Anyone got some Magnum drivers to sell? Preferably all grey V4.