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Stax Sigma Low Bais and Stax Sigma Pros - Page 11

post #151 of 472
Quote:
Originally Posted by smeggy View Post
Wait, not wishing to hijack the thread but what did you do with your SR-X? was it a gamma pro transplant or did you go deeper into modding territory? Enquiring minds need to know.
He transplanted a pair of Gamma Pro drivers into the SR-X/MK3 housing, and modified the stock cable to give it a Pro bias plug.
Read more about it in the Stax thread...
post #152 of 472
Quote:
Originally Posted by smeggy View Post
Wait, not wishing to hijack the thread but what did you do with your SR-X? was it a gamma pro transplant or did you go deeper into modding territory? Enquiring minds need to know.
What Kai said. I'm also looking into having clones made of the original Pro badges so they are completely authentic even though I don't use the stock headband. The Mk3 Pro was done in a bit of hurry for Stax as the only original parts used are said badges, even the boxes were standard Mk3.
post #153 of 472
Quote:
Originally Posted by Duggeh View Post
Sigmas are stinky jobbyphones.
If one were to have the SR-404 mods done to a Sigma Pro what should be done with the stinky old drivers?
post #154 of 472
Quote:
Originally Posted by plaidplatypus View Post
If one were to have the SR-404 mods done to a Sigma Pro what should be done with the stinky old drivers?
If even one is any good I would keep it as a spare for a low bia sigma or lambda. Preferably two drivers because they are probably matched.
post #155 of 472
You can always sell the drivers and cable if they aren't damaged. It can be pretty tricky to remove Stax drivers from the baffle without damaging them or at least the front dustcover so be careful.
post #156 of 472
Quote:
Originally Posted by spritzer View Post
You can always sell the drivers and cable if they aren't damaged. It can be pretty tricky to remove Stax drivers from the baffle without damaging them or at least the front dustcover so be careful.
So, spritzer, do you have any photos or step-by-step guides that could benefit those looking at doing it? e,g, is there a technique to minimise the risk in removing the drivers from the baffle without damaging them or the front dustcover?
post #157 of 472
Nope no pictures as I'm really bad at taking them but Stax used two types of glue over the years, double sided tape similar to the one on the earpads and epoxy like glue. It's best use a long and very thin knife to break the drivers away with the tape and watch the angle of the edge so you don't tare the dust cover. The epoxy is much harder to work with as you have to break away as much of it as you can and then use a thin sheet of metal to pry them apart.
post #158 of 472
Quote:
Originally Posted by spritzer View Post
Nope no pictures as I'm really bad at taking them but Stax used two types of glue over the years, double sided tape similar to the one on the earpads and epoxy like glue. It's best use a long and very thin knife to break the drivers away with the tape and watch the angle of the edge so you don't tare the dust cover. The epoxy is much harder to work with as you have to break away as much of it as you can and then use a thin sheet of metal to pry them apart.
Thanks for the detailed advice/guidance. Your experience is worth volumes to us all.

When I get to doing the job (probably sometime in January after the holidays) I'll be sure to take and post pictures.
post #159 of 472
Quote:
Originally Posted by webbie64 View Post
Thanks for the detailed advice/guidance. Your experience is worth volumes to us all.

When I get to doing the job (probably sometime in January after the holidays) I'll be sure to take and post pictures.
Please do. I should have some Sigmas with me soon and if any of them is broken I'll be sure to rip it apart with pictures.

When you mount the driver it's good to use double sided take that you can buy in most craft stores in A4 paper size or even larger. It's strong but not too strong and there is very little mess involved.
post #160 of 472
Thread Starter 
Hey Everyone, I just ordered the Stax SRD X Pro portable adapter. I can't wait to take delivery of it. It might get to me today-12/14 via Fedex. Is there any difference in driving ability between the SRDX Pro and the SRDX non Pro? Is one more powerful that the other? Enjoy Scottsmrnyc
post #161 of 472
I have one SRD-X on the way so impressions later but from the specs it should be pretty bad. Lets see how it will sound though.
post #162 of 472
Quote:
Originally Posted by Scottsmrnyc View Post
Hey Everyone, I just ordered the Stax SRD X Pro portable adapter. I can't wait to take delivery of it. It might get to me today-12/14 via Fedex. Is there any difference in driving ability between the SRDX Pro and the SRDX non Pro? Is one more powerful that the other? Enjoy Scottsmrnyc
Nice score!
Driving difference ability? The SRD-X can only drive Normal bias 'phones, while the SRD-X Pro can drive both Normal and Pro bias phones. May be other differences as well.
post #163 of 472
Thread Starter 
Hey everyone I took delivery of the SRD X Pro and about a couple of years ago I was able to purchase a SRD X non pro. I must admit that I was surprised how well both the SRD X Pro and SRD X non pro worked with a pair of Stax Sigma Pros and a pair of Stax Sigma non pros. Whether using both portable adapters on 8 batteries or through their adapters, I am reporting that the sound was close to as good as when I use my SRD 12 S or my srm007t. I know this sounds a little impossible, but I did the test twice with the plug in adapter and with durcell batteries. I was very impressed. I wonder what would happen if I took them out onto the streets of NYC. I guess with the weather being cold, this would not be a good idea. I will have to wait till the spring and or summer to do this. But within my apt, where it is far more quiet, the results were impressive; this is only my humble non technical opinion.
Has anyone ever done a similar test?? What do you think?
Enjoy Scottsmrnyc
post #164 of 472
Thread Starter 
Additionally, I should report that my portable CD Player- An old Sony Discman D 2T4 runs on 4 AA Batteries. This might have been the reason for the improved sounds. Enjoy Again. Scottsmrnyc
post #165 of 472
Quote:
Originally Posted by Scottsmrnyc View Post
Hey everyone I took delivery of the SRD X Pro and about a couple of years ago I was able to purchase a SRD X non pro. I must admit that I was surprised how well both the SRD X Pro and SRD X non pro worked with a pair of Stax Sigma Pros and a pair of Stax Sigma non pros. Whether using both portable adapters on 8 batteries or through their adapters, I am reporting that the sound was close to as good as when I use my SRD 12 S or my srm007t. I know this sounds a little impossible, but I did the test twice with the plug in adapter and with durcell batteries. I was very impressed. I wonder what would happen if I took them out onto the streets of NYC. I guess with the weather being cold, this would not be a good idea. I will have to wait till the spring and or summer to do this. But within my apt, where it is far more quiet, the results were impressive; this is only my humble non technical opinion.
Has anyone ever done a similar test?? What do you think?
Enjoy Scottsmrnyc
My SRD-X Pro is definitely noticeably a step or so behind the standard, unmodded, SRM-T1 (I'm sure it'd be well behind spritzer's ).

It's not a bad amp, though, particularly for portable use around the home .

I find it has a good synergy with a warmer IC (I use Apuresound) unlike the silver ICs I use with my tube amps.
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