jensenmann

G9 with different tubes (soundfiles inside)
« on: August 20, 2006, 03:45:38 PM »
Some results from the Karlsruhe Hörsession:
Here´s a link to a packed 20MB file which contains several recordings with a G9. We changed the tube in the SRPP stage since there´s no feedback around this stage which could equalize nonlinearities.
The G9 was the OEP version. We recorded a padded signal from my HD recorder so that every tube after warming up the same time could get the exactly same signal through always the same channel.
Happy download and have fun
www.kubarth.com/temp/groupdiy/G9-Roehrenvergleich.tar.bz2

thanks to kubi  and (silent:arts) for being partner in crime
You rock
 :thumb:
Jens
Quote from: PRR
The tubes of course don't care what frequency they distort


jensenmann

G9 with different tubes (soundfiles inside)
« Reply #1 on: August 21, 2006, 06:49:06 AM »
Some impressions from the action going on this day:

Test setup for comparing different preamps





Volker (silent:arts) dissecting an alphatone DI
Jens
Quote from: PRR
The tubes of course don't care what frequency they distort

ChrioN

G9 with different tubes (soundfiles inside)
« Reply #2 on: August 21, 2006, 10:43:15 AM »
Did not listen too hard, but the differences were very very subtle I think

I love these tests  :green:
"All PCB traces are curved to emulate the electrical response of point-to-point wiring" -Drip

DerEber

G9 with different tubes (soundfiles inside)
« Reply #3 on: August 21, 2006, 11:58:56 AM »
any chance to get an zip-file?
 :sad:
I am not able to open this on my Windows PC.

ChrioN

G9 with different tubes (soundfiles inside)
« Reply #4 on: August 21, 2006, 12:00:58 PM »
Use winrar ( rarlabs.com )
"All PCB traces are curved to emulate the electrical response of point-to-point wiring" -Drip

DerEber

G9 with different tubes (soundfiles inside)
« Reply #5 on: August 21, 2006, 12:08:14 PM »
Thanks! It works now!!! :cool:
Nice Testfile..... I can hear some little differences with my PC Speakers, but I would need to hear it back home again to find my favourit.
 :thumb:

jensenmann

G9 with different tubes (soundfiles inside)
« Reply #6 on: August 21, 2006, 02:23:20 PM »
how the heck do I add a poll. It doesn´t work for me. Am I stupid??? :evil:

(no comments please)
Jens
Quote from: PRR
The tubes of course don't care what frequency they distort

gyraf

G9 with different tubes (soundfiles inside)
« Reply #7 on: August 22, 2006, 05:31:17 AM »
..Edit your initial post, and at the bottom of the page there is an option named "add a poll"..

..dunno how it works, though..

Jakob E.
..note to self: don't let Harman run your company..

jensenmann

G9 with different tubes (soundfiles inside)
« Reply #8 on: August 22, 2006, 06:24:29 AM »
Jakob, that´s what I tried. But obviously it´s not possible.

Was tun sprach Zeus?
 :roll:
Jens
Quote from: PRR
The tubes of course don't care what frequency they distort

gyraf

G9 with different tubes (soundfiles inside)
« Reply #9 on: August 22, 2006, 08:01:06 AM »
..maybe it's only possible at initial posting, not after replies has come in..

You may need to start another thread..

Jakob E.
..note to self: don't let Harman run your company..


jensenmann

G9 with different tubes (soundfiles inside)
« Reply #10 on: August 22, 2006, 09:07:23 AM »
Everybody´s invited to tell us which tubes he liked best, anyway.

So let´s hear it :razz:
Jens
Quote from: PRR
The tubes of course don't care what frequency they distort

G9 with different tubes (soundfiles inside)
« Reply #11 on: August 22, 2006, 09:23:21 AM »
Quote from: "jensenmann"
Everybody´s invited to tell us which tubes he liked best, anyway.

So let´s hear it :razz:


I did not listen to the files, but whatever file used the tubes in your avatar, thats the file I like the best!

Gustav

Steffen

G9 with different tubes (soundfiles inside)
« Reply #12 on: August 22, 2006, 09:38:42 AM »
can´t exactly tell which I like the most... I´m in the workshop...
to me the 02-valvo sounded a little different than the others. seems like
the esses are more kinda sharp in this recording.

Kingston

G9 with different tubes (soundfiles inside)
« Reply #13 on: August 23, 2006, 10:39:24 AM »
I tried to have an analytical listen, and although it was all very subtle, I was able to pick favourites.

Siemens und Halske ECC82 came out as the best sound. It really performs cleanest and has the "high end" edge over the rest of these. Secord favourite was GE ECC82. Is it just me or does it sound a bit louder than the rest of these? It could be the distortion it produces that gives that impression, and the impact seems very usable.

Valvo struggles with sibilance and high frequency definition, and sounds almost broken in comparison to the Siemens.

The rest of the tubes sound quite OK, but I always went back to the Siemens as reference, as it sounds that much better than the rest.

Playing Valvo and Siemens side by side, for example, the difference isn't all that subtle anymore.

nrgrecording

G9 with different tubes (soundfiles inside)
« Reply #14 on: August 23, 2006, 03:50:39 PM »
"Darmsanierung" doesn't sound very good in general  :green:
Other than that I would use any darm.. err... tube you'd tested.

 :wink: Frank.
Frank Röllen. www.energyrecording.de [FORUM · DIY WEBSITE · STUDIO]°°°° www.frontpanels.de [Engraved Frontpanels]°°°°

rascalseven

G9 with different tubes (soundfiles inside)
« Reply #15 on: February 04, 2007, 10:02:09 PM »
You know, I'd love to say these comparisons were useful, but regardless of which tube is used, I still can't understand a damn word!!!

 :razz:  :razz:  :razz: :wink:

JC
"If you dig the gig, do it. -But listen to the signal, not the person talking."  -Keef

jensenmann

G9 with different tubes (soundfiles inside)
« Reply #16 on: February 05, 2007, 05:55:36 AM »
I bet you don´t want to know anything about Darmsanierung.
 :wink:
Jens
Quote from: PRR
The tubes of course don't care what frequency they distort

Kid Squid

G9 with different tubes (soundfiles inside)
« Reply #17 on: February 05, 2007, 07:23:37 AM »
Hiya Chaps,

Filled my G9's with NOS yellow badge Mullard ECC82's - Best so far .Even on blind testing  :cool:

tried  GE, tfunken, trigor, tesla's - more 'sound '( can't explain it - just richer, fuller better sounding), with the mullards', and that's not just my opinion :wink:

wish I had more  :cry:

Steve :thumb:
It is not the same as 4+12, nor is it the same as 4+8, but 4+12 IS the same as 4+8+12....

http://www.facebook.com/LazyLizardLabs

G9 with different tubes (soundfiles inside)
« Reply #18 on: May 26, 2008, 11:42:48 AM »
i've just listened to the clips and notice they are all incredibly hissy. i was thinking of doing a g9, but not sure if they all sound like this. :shock: do they?

thanks.  :guinness:

tony dB

G9 with different tubes (soundfiles inside)
« Reply #19 on: May 27, 2008, 05:40:32 PM »
I have ordered a few Philips 5751 tubes to compare.


 

Related Topics

  Subject / Started by Replies Last post
5 Replies
2885 Views
Last post August 09, 2004, 07:19:53 AM
by Category 5
4 Replies
1932 Views
Last post May 01, 2006, 10:26:25 AM
by JayDee
14 Replies
5365 Views
Last post August 24, 2007, 04:09:10 AM
by lagoausente
4 Replies
1081 Views
Last post February 07, 2012, 10:37:32 PM
by canidoit