What we are talking here, is about control and not simply gain or amplification.  Every time impedance varies at different frequencies, the driver-amplifier output stage interact... it is not as simple as "just augment the level of the signal and that's all".  It is the reason why amplifier...

In response to:  HEIDEGGER...     "Nope, the Lehmann has found a home"... "I didn't know just what the 650s are capable of. It's like I bought brand new headphones."   I hear exactly the same impression as you, but with my Shure SRH-940 phones...  The Lehmannaudio Black Cube Linear make them...

EXACTLY! : it will improve almost ANY headphone. Specially inexpensive, middle of the line Headphones!   I have just bought a used example of the BCL (It was no less than a well used DEMO at the local Store called "Mundo Sennheiser in Mexico City. This small store sells only Sennheiser...

It depends... Like the phrase: "The beauty lies IN the eye of the beholder", "the sound sounds inside the ear of the wearer"! I have both the 535's and the recently received my new SRH-940's.  I found the 535's not quite comfortable inside my ears, feeling the body of the transducers is a bit...

This morning I'm happy! Yesterday's night the local distributor called to tell me that my new Shure 535 had arrived (finally... after a wait of many months). So I drove to the store to pick-up them. After a brief listening just to check if there were undamaged and had no gross defects...

Fine. But please tell us the newbies what are the advantages or good things (and any bad ones) about this cable, where can we buy one and how do you solder it (which solder is best) and how do you attach it to the plug or connectors, please!

  In my experience, cable IS an issue or will be an issue... As the Gangsters used to say: "You can pay me now or, of course, you can pay me latter, but you WILL pay me!"   My very first In-Ear phone was the excellent (for its time and being a single driver design) Shure E-1, which had an...

Your opinion on the quality of sound from the (now) old Creative Zen Micro matches mine perfectly...  I've found the various circuit topologies in the different players output amplifier is what mostly gives them their own character.  At 320 KBPS in MP3, my old Zen Micro (bought in dec 2005)...

OK, Please report your findings!   On other things, I see you had the expensive Sennheiser HD800 but sold it, and (apparently) kept the 600 series models... is that right?   Back in the 70's I was heavily involved in Audio, and while studiying engineering, i paid my expenses by...

Another less bizarre possibility:  The Crossover in your 535's could be faulty...  or the cable assembly is NOT properly seated in the connectors (remember the new 535's have removable and replaceable cables, which is a great thing since earphone cable failure is a matter of time and usage... I...

Hi there, I am waiting for a set of Shure 535's to arrive to the local dealer (I'm in Mexico City)... I have also read a lot of positive comments on them, and all of them only suggest a little (very little) veiling in the uppermost frecuencies, not a heavy veil like you describe.  Being a...

This idea (putting era protector over earplugs -or IEM's-) in order to achieve a higher attenuation seems a great one at first sight... but in reality, it is hardly going to improve things even a little bit!!!   Noise attenuation is not a simple matter.  Attenuation figures for ear...