slindeman, I guess you have your opinion on DIY amps and I have mine. Perhaps we can all just aggree to disaggree?

Quote: Originally posted by jessica00 yeah, i did research, i just have no idea which would SOUND better with 590's I admit to being unfamiliar with the Sennheiser 590s. I have the HD600s, but I can tell you my experience of the Total Airhead and Porta Corda with them. In my...

Quote: Originally posted by jessica00 having to drive..perhaps HD-590. total airhead - 199 meta42 - over 200 with any decent options porta corda - ~160 or recommend some (wall powered and toggleable cross feed are preferable) jessica00 You obviously have a good grasp of...

Kelly My position doesn't require "bolstering" as it is simply an opinion which I have voiced, without expletives I may add.

Kelly, With over 4000 posts in 1year, you must be qualified to comment on numbers! However, your opinion is worth no more than anyone's as it is nothing more than an opinion.

Commercally produced DIY. However, this is only an option as an assembled version is available, and I suspect, the most popular variant.

Just my opinion; I do not like DIY products posing as commercial alternatives! Porta Corda / Airhead ; a) quality construction & parts b) warranty c) excellent sound quality d) proven reliability e) versatility f) reasonable value Home made amps or other comparable products erode...

Or,http://home.t-online.de/home/meier-audio/ for info about the venerable Porta Corda.

Howie, If you have already decided to start with the HD600's, you are off to an excellent start. My advice would be to contact Jan at Meyer Audio and ask him to quote you a price for a combination of Sennheiser HD600, Corda HA1 & Porta Corda, then you will have a home based system +...

The icing on the cake, is the special price currently available on the Corda HA1. Check out the announcement in the Mall Fi area

JahJah, Stretch the budget a little and you can have a Porta Corda or Creek OBH11

Better than Boosteroo!!

Thanks for the help guys. I've ordered 2 NiMH batteries and charger, so we'll see how it goes. BTW, does anyone know if the RA1 runs on 9v or 18v?

Thanks Hirsch, this is good information. I have had a look at the Plainview website and found the Nmh batteries. There is no mention of which type of charger to use and where to purchase one.

Has anyone compared two identical battery powered headphone amps, one with new batteries, the other partially discharged? My Grado RA1's performance begins to deteriorate long before the batteries run out. I can feel a new amp coming on! Oh no, not that again. Help-help, somebody talk...

Quote: is there an amp out there which can bring the mids of the Senns far enough forward to allow them to sound like my Beyers ~ or, is it time once again to hang up the Senns and get another pair of higher end Beyers? Thanks 1) Grado RA1 2) Corda HA1 Others too, but these...

Hi richpjr, I,and several others have been very pleased with the performance of the Grado RA1 with the Sennheiser 600's. You can buy an RA1 for a little over $300.

Have owned both SR225 & SR325 with RA1 amp. Liked the 225's more than the 325's, then heard the HD600's with the RA1 and found this to be a superb combo. The HD600 Sennheiser/ Grado RA1 combo has been with me now for 8 months and I still feel the same.

Quote: Originally posted by darkclouds I Maybe John Dunlavy is right, or maybe I just don't have the "golden ears". Although what Mr. Dunlavy has to say seems to make alot of sense to me. I think that if more audiophiles were truly honest with themselves they would admit that...

I figured that part but what does one do with the soldering iron? I have no experience with soldering wires especially such small ones. I guess I need a step by step guide from some kind soul who has more experience

Quote: Originally posted by Hirsch IMO this particular combo doesn't get enough discussion. Here here Hirsch! Some people are under the impression that the Senn's are too difficult to drive owing to the high impedence. Not so. In fact, they are an easier load for an amplifier...

Has anyone here tried shortening the standard Sennheiser cable? I would like mine to be 5 feet long but am unwilling to spend big bucks on an aftermarket "upgrade cable". I have always had difficulty telling the difference between cables so upgrades are meaningless to me.

doeboy The next question would be; do you want a portable or home based amp, or possibly a combination of the two? Airhead, Porta Corda, and I understand Meta 42 can all be both battery and 110v powered. The little is 110v only. I am currently using a Grado RA1 with my HD600's with good...

I was looking at the HeadRoom Total AirHead amp for around 200 dollars I have personally used both the Total Airhead and Porta Corda with the HD600's. The Porta is better IMO. New Porta Corda should be even better and cheaper than Airhead.

Meow!