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Author Topic: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots  (Read 8264 times)

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Currawong

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #10 on: May 21, 2012, 12:14:40 AM »

What amp was this with, out of interest?

I don't think that the 10-20k brightness is going to affect much. Most of what we call "bright" is the result of what is between 4-10k.
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Marvey

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #11 on: May 21, 2012, 12:19:08 AM »

T2. The mk2.5 does seem to have more treble energy than the mk1, but yeah that entire 10k+ region is "air". Very nice effect.
« Last Edit: May 21, 2012, 01:19:31 AM by purrin »
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RexAeterna

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #12 on: May 21, 2012, 12:52:36 AM »

whatever you did the right channel and the headphone looks awesome(measuring wise. i bet though it sounds good as it measures).


I don't think that the 10-20k brightness is going to affect much. Most of what we call "bright" is the result of what is between 4-10k.

interesting seeing someone saying that cause usually with most stuff involving past 10khz not very bothersome to me either but, i tend to find lot of electrostatics more comfortable and less fatiguing compared to lot of headphones cause of less treble energy build-up since most electrostatics are completely free-air/open(that's why i hate closed phones as well besides the weird pressure they give even when playing nothing is bothersome for some odd reason) 
« Last Edit: May 21, 2012, 12:55:13 AM by RexAeterna »
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Armaegis

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #13 on: May 02, 2015, 07:13:33 PM »

So what's the verdict on a 007mk2? What's a good used price? I have a potential trade offer, but I've never heard anything above the (lambda?) models and don't have an amp, though thinking I might try to get a WEE so I don't need a separate amp.
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Do you think there may be an acoustic leak from the jack hole? ~Tyll Hertsens

Not sure if I like stuffing one hole or both holes. Tending toward one hole since both holes seems kinda ghey ~Purrin

shipsupt

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #14 on: May 03, 2015, 04:55:56 AM »

They are better than they get credit for because they always get compared to the MK I.  Yes, the MK I is better in many ways, but in small ways.  The MK II certainly holds its own, and can be modded to get pretty close to the MK I sound.

The 007 is probably the most amp dependent of the Stax line up.  With stats we don't talk much about needing power, but the 007 's crave it and are rewarded with a strong amp with lots of control.  The 717 starts to get them sounding right, but the aftermarket stuff lights them up.  007 from something like the BHSE is stunning.  The EC Electra drives them with ease.

There are a lot of guys who run stuff like the Wee who report great results, and you should probably check in with them, but if there was one Stax I'd be wary of running like that it would be the 007.

It's been a long time since I was in the market so I can't help much with current prices.

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Yeah, well, you know, that's just, like, your opinion, man.

Armaegis

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #15 on: June 01, 2015, 06:50:44 PM »

So I made that trade I mentioned a month ago and got a 007mk2 and Woo WEE... but I've got reduced output and severe distortion/buzzing in the left channel. Is this a fried driver?

I have no other stax headphone or amp to experiment with.
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Do you think there may be an acoustic leak from the jack hole? ~Tyll Hertsens

Not sure if I like stuffing one hole or both holes. Tending toward one hole since both holes seems kinda ghey ~Purrin

Tachikoma

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #16 on: June 01, 2015, 11:45:00 PM »

Hard to say, could be a fried transformer. Is the buzzing there with no music signal?
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n3rdling

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #17 on: June 02, 2015, 03:20:46 AM »

Are you able to do simple soldering?  You can wire one of the Stax jacks with swapped L/R pins to determine if the problem is the transformer or HP.
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Armaegis

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #18 on: June 02, 2015, 04:57:49 AM »

Hard to say, could be a fried transformer. Is the buzzing there with no music signal?
The buzzing gets worse as I increase volume. Tapping/shaking the headphone sometimes makes it better or worse.

No buzzing without music.

What does a fried transformer sound like?

Are you able to do simple soldering?  You can wire one of the Stax jacks with swapped L/R pins to determine if the problem is the transformer or HP.

I am capable... but this was a trade with a dealer and I don't want to go down that route if I can just get a refund or new headphone.
« Last Edit: June 02, 2015, 06:39:28 AM by Armaegis »
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Do you think there may be an acoustic leak from the jack hole? ~Tyll Hertsens

Not sure if I like stuffing one hole or both holes. Tending toward one hole since both holes seems kinda ghey ~Purrin

Armaegis

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Re: STAX SR-007 mk2.5 Frequency Response and CSD Waterfall Plots
« Reply #19 on: June 03, 2015, 10:00:57 PM »

Hmm definitely the 007 and not the WEE.

I was going to try swapping channels on the WEE but the wires are so short in there I don't think I could actually swap without rewiring which is more that I want to bother with. So I just pulled the plug out a little bit and tapped speaker outputs directly to the pins. Right side is fine, left side is diminished and buzzy. Guess I'll be taking this up with the seller.
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Do you think there may be an acoustic leak from the jack hole? ~Tyll Hertsens

Not sure if I like stuffing one hole or both holes. Tending toward one hole since both holes seems kinda ghey ~Purrin
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