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   Home » Audio News» Lamm Industries: a special interview with a special company (107 posts, 6 pages)
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  »  New  Lamm LP2 phonostage: review of review...  Another stupid Lamm LP2 review....  Analog Playback Forum     2  62238  03-05-2005
  »  New  VTL TL-7.5 Reference: His name was Marc Mickelson he wa..  VTL TL-7.5 Reference: His name was Marc Mickelson he wa...  Audio Discussions  Forum     0  29578  03-16-2005
  »  New  The Silence of the Lamms!..  Well, Lamms are not exactly fun anymore. ...  Audio Discussions  Forum     7  90347  06-12-2005
  »  New  Romy, how does the original ML2 sound in regards to acc..  Modification of Lamm’s SET...  Audio Discussions  Forum     5  67830  06-20-2005
  »  New  Lamm L1 vs. L2 preamp..  L1/L2 & Police Breathalyzer...  Audio Discussions  Forum     5  76804  06-25-2005
  »  New  Jonathan Valin smokes Lamm LP2..  Jonathan Valin smokes Lamm LP2...  Analog Playback Forum     0  25979  03-27-2006
  »  New  Initial thoughts about new/old Lamm ML2s..  Voltage Divider in ML2 Input Stage...  Audio Discussions  Forum     215  1749082  10-12-2006
  »  New  DHT driver & input..  Effects of radiation...  Melquiades Amplifier  Forum     25  249340  02-01-2007
  »  New  A DSET is better then an expensive SET..  DIY Stradivarius...  Audio For Dummies ™  Forum     41  394818  09-21-2007
  »  New  Lamm ML2.1 "No longer available"?..  My favorite song...  Audio Discussions  Forum     16  146695  04-09-2008
  »  New  The loudspeakers for a powerful SET..  Mission Accomplished?...  Audio Discussions  Forum     48  427217  04-11-2008
  »  New  Dual channel SET..  Space exploration...  Audio Discussions  Forum     8  84603  04-17-2008
  »  New  Incorporating active crossovers into DSET..  Thanks...  Melquiades Amplifier  Forum     2  46366  07-22-2008
  »  New  RMAF 2008 observations, opinions 1) ceramic drivers..  Mystification-masturbation?...  Audio Discussions  Forum     32  284292  10-15-2008
  »  New  Lamm introduced LL1 Signature Preamp…..  An Oscar for the most retarded comment printed in audio...  Audio Discussions  Forum     19  164670  05-16-2009
  »  New  A new CES 2010 loudspeaker?..  Good idea, indeed......  Horn-Loaded Speakers Forum     15  173960  01-13-2010
  »  New  Lamm ML2.1 "No longer available"?..  My favorite song...  Audio Discussions  Forum     16  146695  04-09-2008
  »  New  Lamm ML2.2 and Mark the BS teller...  Keeping beaching about Spectral…...  Audio Discussions  Forum     7  77173  01-30-2012
10-12-2024 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,184
Joined on 05-28-2004

Post #: 101
Post ID: 27627
Reply to: 27626
You can never step in the same water twice

I do not know the specific of your playback and if you would like to get it for yourself or to use it as a dealer. After ML2.1 I very much lost trust in the respect to what Lamm did but my recent experience suggested that ML3 is the force they need to be acknowledged. Cuz they play back head the rest top of the Lamm electronics, which was produced after ML2.1 and frankly speaking I was anticipated less interesting result. I do have some kind of very subtle feeling is that original vintage ML2 voice slightly more kind and gentle than ML3, was slightly less showy but in the same way more respectful to music. But they are very subtle feelings and they might be to a great degree derivatives of other factors that the system I was listening had. When I was listening I was more listening not what the installation did but rather what capacity is had if some other minor things were addressed. I literally did not detect that Lamm electronics was the weakest link and to my surprise performed much better then what I anticipated.


Another small things. I know that Vladimir daughter is trying to revise the company and set up new production somewhere in Florida. My feelings that amplification they going to produce need to be evaluated as a new company. Obviously they going to follow Vladimir schematics and his assembling planning but I would still not automatically assume that the result they will produce would be identical to what we remember from end of the 90s.




"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
10-12-2024 Post does not mapped to Knowledge Tree
Amir
Iran Tehran
Posts 362
Joined on 02-11-2009

Post #: 102
Post ID: 27628
Reply to: 27627
New Production
I have spoken with David, he has a close relationship with Lamm and it seems all things is ok for proper production like past. Elina (Vladimir wife) and her daughter are trying to start the production of ML3 but there is no specific time.



www.amiraudio.com, www.hifi.ir
10-13-2024 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,184
Joined on 05-28-2004

Post #: 103
Post ID: 27629
Reply to: 27627
Taking a step back.

The biggest mystery of Lamm ML3 


If anybody familiar with my attitude towards Lamm ML3  what's my disagreement that that amplifier of this level, should be permitted to have a coupling capacitor between 2nd and 3rd stage. Lamm, uses his standard schematic for ML2 with feedback applyed to cathode 12x7. The gm70 is direct heated that can easily enter grid current and work with a positive bias, pushing significantly more power then it's meant to but the most important do not go in very hard clipping like indirectly heated triods do. Here is where Lamm had a monster driver stage with  8 plates in parallel capable to produce immense current. In my view it is a humongous overbuild, the gm70 doesn't generate this huge current, but Lamm knew that his amplifier will be driving speakers for sensitivities around 90s and he made this overbuilt in my view completely reasonable, for this money he can throw a few more tubes in parallel. 


Here is where the main problem was for this amplifier in my view. And the picture here 


https://images.app.goo.gl/gKwKhUp6KtkTAUYJ8


You can clearly see that between second stage and GM 70 there are coupling capacitors. This is absolutely horrible idea because those capacitors works perfectly fine when they are polarized, means gm70 working with the negative bias in class A1. Now the gm70 need to throw more power, that output stage enter A2 operation mode and the output to running with positive bias, while Lamm's super powerful second stage buffer pushing current like no tomorrow. At that moment the coupling capacitor need to change polarity and this is absolutely the stupid idea that that should have a tremendous ramification to sound. 


The playback I was exposed I had top of the line karma load speakers, I do not know what sensitivity it was, I presume low 90s. The system had complementary subwoofers that I would like to discard for multiple reasons. This new provision of karma had both of low frequency sections ported it means in the bottom they should drop impedance and would demand a lot of current from amplification. This is exactly where's the topology of ml3 should shine. I was trying to crank the volume higher and try to detect the event when the coupling capacitor between second and third stage would makes difference. Of course it is not my system and everything is new but that is one of the primary interest of my visit was to detect when ml3, and it was my first listening of this amplifier, would auditably demonstrate it's main problem. However, this all my intention to detect auditable signature of this event I was not able to. The amp for sliding into high volume and low frequency events very very gracefully. So, I see three conclusions from this.


1. I am a full of shit who did not detect Sonic signature of capacitor recharging or impact was much much more settled that I anticipated. Another option would be that that apology off system subwoofers were not what I would like to see for system of this caliber and it might mask out the result. 


2. Lamm indeed uses direct coupling between his second and third stage and that capacitors add the picture are in fact three capacitors connected to parallel between first and second stage. 


3. Lamm was much more kinky that I thought and introduce illogic for biasing coupling capacitors between second and third stage and prevent it from changing polarity. 


I did not see ML3 schematic and I do not know what in reality is going on there but in this point I would hold my critical attitude about it. I really would like to hear this amplifier with a good, complicated tone enable low frequency section.




"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
10-13-2024 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,672
Joined on 10-12-2006

Post #: 104
Post ID: 27630
Reply to: 27629
Lamm and "available LF"
Romy, were these the Kharma speakers with 2X 8" "woofers"? I just checked and thought I saw they claim 29 Hz from these things. I think nothing one does with a port could do this to my taste, and in any case I'm pretty sure it would take some very serious amp power to make it happen. The problem for any SET I know of is that they have a hard time with big and high-excursion woofers. If Lamm got around this, I sure want to know how! The ML2s were great, apart from the LF thing.

Paul S
10-14-2024 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,184
Joined on 05-28-2004

Post #: 105
Post ID: 27631
Reply to: 27630
To me it is all still up in air..

Poul, lamm ml2, the original not the division. It was from my point of view the best amplifier out there for a low frequency. When you have enough sensitivity in low frequency and you're able to idle ml2 output stage you was able to get base which is absolutely unknown for majority of audio people. Trust me, in that time I pretty much know all amplification available. The problem with ml2 is that it is 18 what only and if you need to suck out of it a little bit more that it instantaneously clip by voltage or by carrent, depends how you load output stage. ML3 is completely different concept. Is that output stage of that amplifier is specifically designed enter A2 mode and if you even drive it harder it's enters very very gentle soft clipping. the ML2 this indirectly heated trion purely topologically cannot work in a2 mode. 


No, the most interesting question is to learn if ml2 in its own best operation parameters deeply in A1 mode produces better or worse bass then ml3 in class A1 or A2. To answer this question you need to have a way back installation with no compromise low frequency section and so far I did not only personally experience it but I also looking in the vote other ml3 owners do, I did not feel that is there low frequency sections able to make Justice for either ML2 or Ml2. This is why I publicly stated that if somebody kills the day to be able to stress ML3 against truly serious low frequencies section then please invite me and I would like to hear it




"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
10-14-2024 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,672
Joined on 10-12-2006

Post #: 106
Post ID: 27632
Reply to: 27631
Buffer?
That was my point, that the only way to know what any amp can do with LF is to actually produce that LF, and I was asking if the 2X 8" woofers you heard gave you any idea. However "efficient" big LF drivers are they are still tough loads for SETs I have heard trying to drive them, including ML2. Did you mention an output buffer? I only fairly recently learned that my current amps use this approach, but I have not tried too hard to isolate this effect. I too would love to hear SET bass with power and extension.

Paul S
11-29-2024 Post does not mapped to Knowledge Tree
Amir
Iran Tehran
Posts 362
Joined on 02-11-2009

Post #: 107
Post ID: 27725
Reply to: 27632
Lamm now is Active
Lamm production will be ok soon and they will deliver ML2.2 and ML3.0 orders soon.This was a good news for me. Most audiophiles in Iran will experience the sound of Lamm electronics soon.




www.amiraudio.com, www.hifi.ir
Page 5 of 5 (107 items) Select Pages:  « 1 2 3 4 5
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Lamm LP2 phonostage: review of review...  Another stupid Lamm LP2 review....  Analog Playback Forum     2  62238  03-05-2005
  »  New  VTL TL-7.5 Reference: His name was Marc Mickelson he wa..  VTL TL-7.5 Reference: His name was Marc Mickelson he wa...  Audio Discussions  Forum     0  29578  03-16-2005
  »  New  The Silence of the Lamms!..  Well, Lamms are not exactly fun anymore. ...  Audio Discussions  Forum     7  90347  06-12-2005
  »  New  Romy, how does the original ML2 sound in regards to acc..  Modification of Lamm’s SET...  Audio Discussions  Forum     5  67830  06-20-2005
  »  New  Lamm L1 vs. L2 preamp..  L1/L2 & Police Breathalyzer...  Audio Discussions  Forum     5  76804  06-25-2005
  »  New  Jonathan Valin smokes Lamm LP2..  Jonathan Valin smokes Lamm LP2...  Analog Playback Forum     0  25979  03-27-2006
  »  New  Initial thoughts about new/old Lamm ML2s..  Voltage Divider in ML2 Input Stage...  Audio Discussions  Forum     215  1749082  10-12-2006
  »  New  DHT driver & input..  Effects of radiation...  Melquiades Amplifier  Forum     25  249340  02-01-2007
  »  New  A DSET is better then an expensive SET..  DIY Stradivarius...  Audio For Dummies ™  Forum     41  394818  09-21-2007
  »  New  Lamm ML2.1 "No longer available"?..  My favorite song...  Audio Discussions  Forum     16  146695  04-09-2008
  »  New  The loudspeakers for a powerful SET..  Mission Accomplished?...  Audio Discussions  Forum     48  427217  04-11-2008
  »  New  Dual channel SET..  Space exploration...  Audio Discussions  Forum     8  84603  04-17-2008
  »  New  Incorporating active crossovers into DSET..  Thanks...  Melquiades Amplifier  Forum     2  46366  07-22-2008
  »  New  RMAF 2008 observations, opinions 1) ceramic drivers..  Mystification-masturbation?...  Audio Discussions  Forum     32  284292  10-15-2008
  »  New  Lamm introduced LL1 Signature Preamp…..  An Oscar for the most retarded comment printed in audio...  Audio Discussions  Forum     19  164670  05-16-2009
  »  New  A new CES 2010 loudspeaker?..  Good idea, indeed......  Horn-Loaded Speakers Forum     15  173960  01-13-2010
  »  New  Lamm ML2.1 "No longer available"?..  My favorite song...  Audio Discussions  Forum     16  146695  04-09-2008
  »  New  Lamm ML2.2 and Mark the BS teller...  Keeping beaching about Spectral…...  Audio Discussions  Forum     7  77173  01-30-2012
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