Lars you don't use the Hifiman adapter with the HE-6 to run it from the taps?
Recent Images In This Thread
Related Forum Threads
- Eddie Current Balancing Act vs Leben 300 or 300xs - pls share your experience Last post on 1/19/11 at 8:32pm in Headphone Amps (full-size)
- Integrated Amplifiers and Preamplifier with Good, Great or Excellent Headphones Output -... Last post on 11/29/14 at 7:01am in Headphone Amps (full-size)
- Leben CS300(XS) vs Woo Audio WA22 Last post on 4/2/11 at 3:30pm in Headphone Amps (full-size)
- Tung-Sol 7236. UP FOR GRABS? Worth the BUY? WA3+ Owner. Last post on 2/26/14 at 2:47pm in Headphone Amps (full-size)
- Hum and other problems with "NOS" power tubes? Last post on 1/24/11 at 7:44am in Headphone Amps (full-size)
Diy Beginners Guide
Last edited: 7/22/13
- Headphone ImpedanceLast edited: 8/18/12
INTRODUCTION Because I’ve been involved with some review samples with my Australian brethren in the last couple of years, I’ve had the chance to hear some IEMs I’ve been curious about in the...
The Little Dot line of headphone amps represent what is possible when a Chinese production amp doesn't cut corners on build quality and engineering. This amp has my vote as the best desktop hybrid...
My dac progression has been in the sub 1000.00 range and frankly I doubt I will ever exceed that mark further I find it hard to believe there is anything better in this price range. My musical...
Specifications: Driver: Titanium Diaphgram Dynamic Driver 13mm Sensitivity: 90+- 2dB Reproduction Frequency: 20Hz-30kHz Cable Length: 1.2m Plug: 3.5mm Stere Mini Weight: 18g Comes With: 1...
Hi guys, I spent several hours (more than 40 hours research) to find the best headphone for my budget (under AUD $200). I tried to read as many reviews (mainly the 1-2 stars) as I could to know...
- Headphone Impedance
The Leben CS300XS Thread - Page 134
Head-Fi's Best Sellers
No, I just use 10 Ohm resistors in parallel. The HiFiMan adapter box also has resistors in series, which eats some of the power output from the amp - and "we" don't like that with a 12W amp ...
Just edited my earlier post ...
Edited by LarsHP - 10/26/13 at 1:09pm
Did you/can you post a pic of how you do that?
Yeaah, got me there... I did, I never heard about issues with audeze/hifiman except Lars, who might be having supernatural ears
Edited by ardilla - 10/26/13 at 5:32pm
At least there is someone else:
Thanks, I am using the same configuration for now in my 230V CS300XS. Before I had, besides the 10 Ohm resistors in paralell, two 3 Ohm resistors connected in series that eliminated the hum but also reduced the dynamics so I came back to the "dynamic hum" situation :)
I totally understand your feelings as noise has been the main factor that kept me far from tube amps for a few years until I heard the Leben and liked it so much. Still, I did not expect that the Leben would hum with the HE-6s. It was a disappointment for me too that does not prevent me to enjoy the combination a lot but I would love to get rid of that noise as noise is noise and I would like to feel the music as transparent as possible.
In my case I can hear the hum as soon as the Leben is switched on when I am close to the amp. Then, with the HE-6s on, I can hear a very distant hum. The hum is always independent of the pot position.
I tried with cheap dampers in the tubes but the hum did not change at all. I would like to try also the choke option but my DIY abilities are so poor that I am afraid of not using the proper component and kill the amp.
Let's keep trying to find a solution for the sake of all Leben lovers that have hum and do not appreciate it.
I think that there is no easy solution.
I am beginning to think that the answer to some extent depends of two factors that aren't about the headphones you use:
1) How silent or noisy is the place you use the headphones? If you live in a big city like you do (Hong Kong), then the background noise will mask the buzzing/humming som much that you might not hear it. If you live in the countryside - like I do - then you will probably be able to hear humming/buzzing that you wouldn't be able to hear in an apartment in a big city.
2) The electricity from the wall outlet. If there's a lot of electrical noise in that, this may cause the amp to hum/buzz (more). This of course can be fixed partly or fully by using power conditioners etc.
In my case, I can't think of any headphone that will both be so insensitive that you don't hear hum/buzz and at the same time so sensitive that it will reach loud "party" levels or peaks. Well, maybe except HiFiMan HE-5 (or the modded version Code-X) which in sensitivity is between the two headphones that I have: HE-6 and LCD-2. The latter one (91dB/mW) gets loud enough, but I get a low noise. The former (83.5dB/mW) has no noise regardless of volume setting, but doesn't get crazy loud (EDIT: via headphone output) - especially not without distortion in the peaks.
When all this is said, I should add that the hum/buzz/noise I hear is very low, but high enough to annoy me when the room is dead silent.
Thanks Lars for your reply.
I live in a less crowded place in Hong Kong. It's fortunate that I can have some quiet moments in my apartment to enjoy music. Thus the "hum" becomes a real issue for me.
If the "hum" is something to do with the electricity, Oh then I can do little to resolve it.
May take risk and buy D7100 next week. Let's see what happens!
I have not read all the pages in this thread, but what about using power conditioners or regenerators with a good ground connection to filter out noise or the unstable power flow. Get off the noisy grid, with your own powerplant ? Not that I have tried one, but a nice power cable setup had a real positive effect in my system with less noise (not talking transformer hum here, more in general) and more clean sound. So a powerplant could be worth considering for giving the humming Leben some fresh homemade juice without lumps of dirt. Maybe borrow one from a dealer to test out. Just brainstorming here .
Edited by Larryonfire - 10/27/13 at 12:19pm
Also, if the hum is a buzz so to speak - meaning that the noise isn't 50 or 60 Hz respectively, but the double frequency, and then we are talking about noise in the PSU which can be fixed with a choke as earlier stated in this thread.
As I suppose, many of us are sure that this is slight but annoying technological fault of this great amp. It is due to its internal architecture.
I think It may be next geal for Leben Team with version Lebec cs300ST for example ;)
Seriously, I think it's about trying to figure out what is the cause of this noise, and people report different frequencies and conditions with/without the noise.
Also if you go further back in the thread there's more about the wonderful sound/music it makes.
LOL...it does seem that way!
Maybe it time to reconnect with the nicer things about the Leben 'experience'....
Edited by BugleBoy - 10/28/13 at 3:45am
- The Leben CS300XS Thread
Head-Fi's Best Sellers
- › The discovery thread.! NEW first look at the Zero Audio DuoZA iems... 8 seconds ago
- › Pictures of Your Portable Rig (part XVI) 15 seconds ago
- › Audio-gd NFB-28 54 seconds ago
- › Sennheiser HD 598 Impressions Thread 1 minute ago
- › X1 Custom Firmwares 1 minute ago
- › Tidal Lossless Streaming 2 minutes ago
- › Chinese / Asian Brand Info Thread (Headphones, IEMs, Amps, DACs) 2 minutes ago
- › 「Official」Asian Anime, Manga, and Music Lounge 2 minutes ago
- › "The Lab" 2 minutes ago
- › Toxic Cables - Impressions and Discussion Thread 3 minutes ago
- › OSTRY KC06 High Fidelity Stereo Inner-Ear Earphones by Brooko
- › Little Dot I+ by Zeejet
- › MHDT labs havana by joespride
- › Dunu TITAN 1 — titanium-coated diaphragm earphones by Dsnuts
- › Yamaha HPH-MT220BL by Janos Kardos
- › Sony MDR-10RBT Bluetooth Headphone by Giogio
- › Bose SoundLink On-Ear Bluetooth Headphones - Black by Giogio
- › Harman Kardon BT by Giogio
- › Philips Fidelio M2BT by Giogio
- › FiiO Andes (E07K) Portable USB DAC and Headphone Amplifier -... by cuiter23
- › Table of Earphocalypse
- › The Great FiiO DAP FAQ Wiki
- › Audio Connections between components --...
- › Head-Fi Buying Guide (Introduction)
- › Head-Fi Buying Guide (Over-Ear Headphones)
- › Head-Fi Buying Guide (Over-Ear Headphones) 2
- › Head-Fi Buying Guide (Over-Ear Headphones) 3
- › Head-Fi Buying Guide (In-Ear Headphones)
- › Head-Fi Buying Guide (In-Ear Headphones) 2
- › Head-Fi Buying Guide (In-Ear Headphones) 3