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Experience with Raul's Essential 3150

Here are my comments on the listening session I had with Raul and his Essential 3150 Full Function Preamplifier.

Firstly, I would like to thank Raul. He is a very knowledgeable and kind gentleman. He has years and years of experience in music and analog systems. My respect for him is in another league after his visit. Some times his post opinions may seem controversial, but I think he knows what he’s talking about. Remember. Respect your elders…they have more experience.

Raul and Jose’s preamp is a seriously built unit!!! It has a separate power supply and the total weight of the two units is close to 50lbs. Very heavy, well shielded frame. Raul opened up the preamp and pointed out the level and quality of the parts. Vishay resistors, V-Caps, etc. This preamp is completely solid state and made with the finest parts and the inside does not look garage shop at all. It is impressive looking. His design is fully balanced from input to output. It included 2 SE line inputs, 2 balanced line inputs and 2 sets of phono inputs, both SE and balanced. It has a separate left and right volume control as well. The preamp is 12 years in the making and uses some interesting proprietary techniques. According to Raul, the distortion and frequency linearity is orders of magnitude better than just about all the other equipment out there.

We compared the music we were hearing using either his preamp or my CAT Ultimate MkII preamp. Since I had to create space in my rack, I removed my CD player. Therefore, we only listened to my analog system. I wish this were not the case because it would also have been good to compare line stages.

We listened to a few records: Miles Davis-Kind of Blue, Sade-Stronger than Pride, Steve Miller-Fly Like an Eagle, Pink Floyd-Dark Side of the Moon, and various classical selections. The most clear and obvious differences were bass response, transparency/detail and sound staging.

Music with the Essential had INCREDIBLE bass and midbass. Much, much better than listening through the CAT. It is extended, articulate and not attenuated the least bit. This improved the fullness and impact of the presentation greatly. It is quite amazing that my Analog system has bass potential that I was not even getting close to with the CAT. This alone has me seriously considering buying his unit.

As you would expect from fine solid state, the music had fine detail and transparency was at a higher level than you would expect with tubes. In this regard it was better than the CAT. Due to the transparency, the soundstage depth and width was very apparent. Dynamics were also very good.

In the mids to highs, music through the CAT had a richer and more immediate quality. Brass sounded brassier with the CAT than through the Essential. In comparison, music through the Essential had a detailed but lean, soft and relaxed presentation compared to the CAT. It comes down to which is more correct, which has a coloration and what does one prefer. Also, the Essential has some trim pots that allow extension or attenuation of frequencies above 20KHz. Raul believes that this observation would have been ameliorated by extending the frequencies.

Through both preamps, we heard slightly tipped up high frequencies in my system that Raul believes is not a function of either preamp. The most likely culprit is the frequency balance of the speakers or room acoustics. Therefore, I may need to address this problem first. Nonetheless, you can’t go wrong with the Essential 3150. It really is like a tool.

The other thing I will try is replacing the tubes in the preamp. They are about two years old and have been used extensively. Ken Stevens from CAT believes that this will improve the level of the bass, articulation and transparency across the entire frequency range. It will be interesting to rehear some of the tracks we played after this. I also would like the chance to try the Essential for a week instead of the 5-6 hours we took as well as compare the line stage performance.

Overall, the Essential 3150 is a seriously good preamp and is probably better than most commercial solid state and tube units. If you have a chance, give it a try. In my case, I’ll first try addressing the speakers, seeing if the new tubes make a difference and hopefully spending more time with the unit.

Andrew
aoliviero
mab33
101 posts
 
I don't remember Raul ever stating that his preamp is the the best. Maybe I missed that, but "best" is a loaded word. I love tubes, see a lot of live music, and use a VAC Phi 110 with my Essential. IMO, a tube lover can still find lots to like in the Essential - I have.

Matt
gregadd
574 posts
 
"We don't do/make any Essential 3150 voicing to meet other similar audio devices. We make/do our best on the Essential 3150 circuit/layout/execution design, selecting the best neutral parts: here in the parts selection was where we made some voicing looking for that neutrality with out loosing: accuracy, very low noise, very low distortion, etc, etc."

I'd say they have thrown down the gauntlet, wouldn't you?
mab33
101 posts
 
I get what your saying - he's definitely implying that it's unique, but I usually cringe when absolute terms like "best" are used. At least he didn't say "the Essential is the best preamp, period." I think Raul would agree that best, from a sound perspective, is a subjective term in this case and can't possibly mean the same thing to all people. I can see J&R saying that they think it's the best(especially from a design point of view), but I can't see them arguing that you, or anyone else, will think so. Beauty is in the ear of the listener, right?:-).

piedpiper
753 posts
 
I think Raul is a very kind, compassionate, respectful and experienced man who thinks his preamp is the best; and that's ok with me, even if, for my purposes, I were to disagree (which I am not in a position to do).
gregadd
574 posts
 
"Beauty is in the ear of the listener right?..."

If I were the creator of the music then, I get to do whatever I want. Then the beholder is the subjective judge of beauty. But the recreator has no such license. Music creation is one thing; music reproduction is another. The so called ss objectivist are always acusing the so called tube subjectivist of creating a thing of beauty but not necessarily faithful to the original. The subjectivist acuse the objecitvist of recreating something that measures faithfully but has no likeness to the real thing.

There are some things in music we just can't measure. It's like cooking. I can buy the best cook book and follow the recipe faithfully;, I still ain't no Julia child. As Raul himself states he spent years exchanging parts for optimum results.

On the other hand if everybody could cook like Julia Child, it just wouldn't be special now would it?

"...Raul...thinks his preamp is the best..." gentleman that he is he has tried to avoid comparisons to any one preamp. No need to ruffle any feathers if you don't have to.
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