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Can i ask why the Leben XS wasn't for you ? Im currently hesitating between the Leben 300 and the Cavalli LF
If you think seriously about the Leben I recommend to read this http://www.head-fi.org/t/415214/the-leben-cs300xs-thread and this
http://www.highfidelity.pl/@main-135&lang=en first (if not done already).
You will find out 3 things:
1. The Leben sounds very good
2. There are some hints for buzz/hum
3. Some thoughts whether the Leben can drive the LCD-2 (with sovereignty)
My experience with the Leben X (sorry for the typo; I had a Leben X for loan, but currently one will have to buy the XS which has different tubes):
Ref. to 1:
The Leben X had a rich, fulminant, tubey sound with a lot of (sound) colors. It was equipped with 2 x JAN 5814 A Philips and 4 x Mullard EL 84. Headphones used were W5000, AKG-701. To me, this kind of rich tubey sound was not natural anymore. I tried different other tubes (2 x Sylvania 5751, 4 x Sylvania 6BQ5 as well as 2 x Raytheon 5751, 4 x Genalex Gold Lion EL 84), the Genalex had the highest resolution and the most realistic sound, but it was still too tubey to me. Also the sound-stage was worse than with my SP MPX Slam.
Ref. to 2:
When I switched on the "original" Leben X, I heard buzz/hum in the right channel. Moreover, there were a lot of hiss in both channels. The buzz/hum in the right channel could also be heard when using speakers. After changing all tubes (to 2 x Sylvania 5751, 4 x Sylvania 6BQ5) the hiss was gone but the buzz/hum was still there. This noise was much louder with the ATH-W5000 than with the AKG 701 but it was impossible for me to use the Leben 300X if such buzz is not eliminated completely. A further change to another set of tubes (2 x Raytheon 5751, 4 x Genalex Gold Lion EL 84) did not help either. The buzz/hum was still there and the amount of noise was almost independent on the sound volume (usually I heard between 9 and 10).
I had a profound conversation on that with Leben/Japan. They responded very quickly and I appreciated this kind of honest conversation / statement very much. They replied as follows:
Due to some complaints about the buss through the headphone, we reduced
the headphone output by 20% (the old version was 1000mW and the later
version 300XS is 800mW).
We are using headphones of 105dB-110dB for testing and the buzz is not
audible like before.
However, we lately received another complaint from USA for the new
version that the output power 800mW is not enough to drive Audeze
LCD-2(91dB), while the old version(1000mW) was evaluated as the best
matching(even miracle) amp for Audese LCD-2.
In this reason, we recently increased again the headphone output to
1000mW specially for USA market for the time being and Audese users
in USA are now very happy with CS-300XS.(CS-300XS for Europe is still
800mW)
Consequently, a low output model(800mW) is better to use high power
headphones(95dB-110dB) to eliminate the buzz perfectly, however,
a high output(1000mW) model is well reputed for Audese headphone.
Ref. to 3:
At that time, my planning was to buy a LCD-2.2.
I had the feeling that the Leben X I had for loan (1000mW !) did not squeeze everything out of my AKG-701.
But how can a current Leben XS (800mW European version) do that with a LCD-2.2 (which needs much more juice) ??
A Liquid Fire can do this with ease !
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- I am sorry guys, I know this is the LF - thread, but have been asked about the Leben
- And sorry for my bad English ! It must be awful for you ...