American Sound AS-2000 Installations- Far East (Tango)

[JackD201]

Hi Jack, can you please explain this statement in layman terms? "If in doubt look at the spec sheets where the Lamms switch at up to 150kHz."

That is literally the speed spec Ked. Look to the highest possible frequency and that will tell you how fast they are allowing the transistors to switch between states. Note however that looking at frequency response and seeing 20kHz to 20Hz automatically means it is slow. Some designers choose to filter out top end on purpose for many valid reasons. It goes without saying that this does not apply to tubes only transistors.

Basically, the higher the switch speed, the smaller the possible voltage steps. Add a great bias scheme to that and you get behavior that is more tubelike especially in terms of zero crossing distortion. In "audiophile talk", more fluid/flowing and other good f words LOL AKA less edgy without having to have the signal crest rounded which is the more typical rout taken to smoothen SS sound. IME anyway.

 

[tima]

It can be done apparently as Elina can provide instructions on how to do so if needed. I'd try it but am not very optimistic. Been disappointed too many times I guess as the initial reaction of "MO' POWAH!" ends up becoming "WTF?" down the road LOL. In my admittedly limited experience I've always preffered to Bi-Amp rather than bridge. This is reflected in my choice of settings on the M1s. Bridging seems to do weird things on my speakers even if all their impedance curves are pretty benign. Bridged becomes either really grating on me or really dulled. It's weird and hard to explain as depending on speakers there has so far been no in between I've found. This makes bridging too much of a crap shoot for me.

Ultimately when I needed more power I went with M2.2s and swapped tubes to try and approach stock M1.2 sound. I got closest with Valvo and Amperex military variants from the Holland factories. M1.2 I really love with CV2492. Good thing this family of tubes is nowhere near in price to the AX7s.

Great info Jack - uh, maybe I won't be trying that.

My favorite is the Amperex 7308, NOS 1963 Holland PQ shield with two stars, but any early-mid 60's Amperex 7308 is good. I'll look for the CV2492 which I haven't tried yet.

 

[mullard88]

Hi Tang,

I have never heard the Magico horns that uses 3 sets of ML 3. It was my friend who uses the ML 3 and M 1.2 on his Magico horns who told me about the set up with 3 pairs of ML 3.

I do not know why the system was set up with ML 3 on the lower frequency and the M 1.2 on the higher frequency. I don't ask many questions, I just enjoy the system. I would think that he has tried it both ways and preferred the set up I heard. I remember visiting multiple times and the set up remained the same. If I were to set up the system, I would do the same. The system had 5 drivers. The lowest frequency driver had its own built in subwoofer. The ML 3 drove the next three drivers. That leaves the exttreme highs driver to the M1.2. I would put the best amp on the driver(s) that covered the range where most of the music is. I have not picked his mind on his set up but that is my speculation for how the amplifiers were matched to the drivers of his speaker system.

 

[JackD201]

Great info Jack - uh, maybe I won't be trying that.

My favorite is the Amperex 7308, NOS 1963 Holland PQ shield with two stars, but any early-mid 60's Amperex 7308 is good. I'll look for the CV2492 which I haven't tried yet.

View attachment 49171

LOVE 7308s!

It was Mullard's M1.2s I heard CV2492s first. I hoarded after that LOL

 

[Lagonda]

LOVE 7308s!

It was Mullard's M1.2s I heard CV2492s first. I hoarded after that LOL

I always thought i had a serious case of the audiophile diseases, but after being
exposed to you tube lovers, i realize i am only mildly infected.

 

[Ron Resnick]

Tang is having, I think, a successful beta test of ML3s on Cessaros. I think it is time for audioquattr to try ML3s on the Zetas!

 

[audioquattr]

Tang is having, I think, a successful beta test of ML3s on Cessaros. I think it is time for audioquattr to try ML3s on the Zetas!

Very good idea .

You could bring a set while you are coming to experience 'beautiful digital' .
We compare Lampizator with MSB.
And Lamm with Alieno.

Let's give Ked some challenge .

 

[Tango]

Tang is having, I think, a successful beta test of ML3s on Cessaros. I think it is time for audioquattr to try ML3s on the Zetas!

The ML3/Cessaro combo is now an exceptional return, risk-free investment Ron. If audioquattr wants evenhigher return he is going to have to take some risk trying Thomas Mayer 211 or 845.

Tang

 

[spiritofmusic]

I think we are missing the point, me included. Ron doesn't need digital. All his limited library is on vinyl, the one or two digitally sourced albums he has are so non audiophile, there's no point getting a cdp or dac/server.

Ron couldn't be more different from Paul, and from the vast majority if not all on this forum.

Ron has lps and tapes, has no interest in hearing new music reproduced at it's best.

We don't really get it, Ron.

 

[audioquattr]

I think we are missing the point, me included. Ron doesn't need digital. All his limited library is on vinyl, the one or two digitally sourced albums he has are so non audiophile, there's no point getting a cdp or dac/server.

Ron couldn't be more different from Paul, and from the vast majority if not all on this forum.

Ron has lps and tapes, has no interest in hearing new music reproduced at it's best.

We don't really get it, Ron.

I know i know. I was just kidding.
But we must be patient.... maybe one day...

 

[bonzo75]

I know i know. I was just kidding.
But we must be patient.... maybe one day...

Exactly. He has been saying horns are not for him either

 

[Tango]

Sneak peek.

Tang

 

[audioquattr]

The ML3/Cessaro combo is now an exceptional return, risk-free investment Ron. If audioquattr wants evenhigher return he is going to have to take some risk trying Thomas Mayer 211 or 845.

Tang

Yes i think both could be. But i have to slow down a bit after all those "investments" last 14 months...

Somehow i think original records are a better 'risk-free investment', allthough i see records as sort of drug and it's doing something with my left brain. I easy forget how much i have "invest" in audio the last few months .....

 

[bonzo75]

Yes i think both could be. But i have to slow down a bit after all those "investments" last 14 months...

Somehow i think original records are a better 'risk-free investment', allthough i see records as sort of drug and it's doing something with my left brain.

I completely agree. Sonically they yield better results than the equipment after a certain point, but unfortunately due to our OCD of comparing various carts, turntables, amps (but not phonos or arms for some people) it is difficult to do both

 

[bonzo75]

Tang, when you had the Ayon the input 1 of your EMT would have less drive than the other two. Has that now changed with the lamm?

 

[zerostargeneral]

Polyphonic rubato on the ultimate Guaneri,NURSE.

Dear Sir your taste is exemplary.

Kindest regards,G.

 

[Ron Resnick]

I completely agree. Sonically they yield better results than the equipment after a certain point, but unfortunately due to our OCD of comparing various carts, turntables, amps (but not phonos or arms for some people) it is difficult to do both

“Our” OCD?

 

[microstrip]

“Our” OCD?

Yes, Ron, it is why I should also have digital. Diversity helps avoiding any tendencies to OCD!

 

[Tango]

Tang, when you had the Ayon the input 1 of your EMT would have less drive than the other two. Has that now changed with the lamm?

Same old. No change. Still less drive. But if you don't go around comparing them, you would not realize anyway. The drive is there. Try to not know sometime and you would be more happy.

Tang

 

[spiritofmusic]

Tang, when Ked doesn't know, he's unhappy. When he DOES know, he's unhappy. Brings new meaning to the line "if I didn't have bad luck, I wouldn't have no luck at all".