John Curl's Blowtorch preamplifier

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john curl said:
The LAMM $130,000 tube amp is a favorite of mine.

Mine too! I park it next to my Aston Martin DB9. :hug: :cloud9:

Assuming you are being serious, I applaud your respect for performance over specification. This is an example of something that really pleases me...because it well and truly laughs in the face of the specification police.

32W into 8 ohms with <3% THD and <10% IMD
5V/us slew rate
3.1 ohms output Z
2.74A peak output current

IMO, every music lover who is designing hifi for the obsessive pursuit of sound quality really needs to free their imaginations from the shackles of conventional specs.

Brian
(personally, I'd settle for an LL2 preamp at $5k. I'm not greedy 😉 )

Lamm
 
Scott, I know you are trying to be 'witty', but please be ACCURATE.
When I heard the LAMM amp, it WAS with WILSON speakers, but it was not the WATT 1 that I use.
Dave Wilson originally designed the WATT 1 for his own use while making recordings. He had already designed the WAMM and that was his home speaker.
Apparently, the amp that he used with the WATT 1 was able to drive the speakers, so he didn't realize that he had such an impedance dip. Dave has a degree in biology, not engineering, so he didn't catch his oversight, until it was pointed out, later. He apparently had some difficulty in removing the problem, without changing the frequency/phase characteristics.
His newer speakers, including the GRAND SLAM, do not have the same impedance curve.
 
john curl said:
Scott, I know you are trying to be 'witty', but please be ACCURATE.

Why do people keep putting words in my mouth? There are plenty of speakers that would balk at 3.1 Ohms output Z and 2.74A max current. I have never been to a so called audiophile listening session where there was not some serious equipment abuse/mismatch (save for one).


Yes I do laugh constantly at the inconsistencies and excesses of the audio "industry". Wasn't Romy banned from several sites?
 
According to Stereophile:
He who made the Lamm
Vladimir Lamm, who designs and assembles all of his company's products, emigrated from the Soviet Union in 1987. Before that, he received training in electronics at the university level—during which time he also played percussion in a symphony orchestra—and worked as an engineer for the Soviet military and space programs, as well as for one of Russia's most-well-known producers of consumer electronics.

I'm not convinced his real name is Lamm. I looked up one of the US patent numbers I gleaned on the back of the M1.2 and the inventor had a different last name. The patent wasn't interesting: concerned using screw terminal blocks to mount power transistors.
 
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