2. analog
  3. 1164996660

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
groovey's avatar
groovey
119 posts
 
What I love about this site is the wealth and diversity of knowledge which one has the opportunity to learn from. Thank You Andrew and Raul for sharing so much. I am looking forward to hearing more from Dan and Doug Deacon after their listening sessions....

Psychicanimal, I hope your parnormal abilities are more attuned than your math skills > 3150 pesos = about 286 Dollars LOL I'll take Two

Best Regards
Goovey Records

Listening to

Prince and the Revolution-Parade-Paisley Park Records-1-31295
mab33
101 posts
 
I bought the Essential and recieved it a couple of weeks ago. Raul was here on Wednesday and we spent about 5-6 hours listening to albums and cd's. We had a great time, and meeting Raul was like spending time with an old friend. In fact, I hope in the future he has more time to spend so we can catch some live music together. I was trying to get him to stay and catch Dave Brubeck with me, but he wanted to try and get up to Doug's so we decided to wait for another show in the future.

I'm working on my system page which is currently not listed so for the sake of everyone knowing what I'm listening thru I thought it appropriate to list my gear first:
Galibier Quattro with Teflon/Aluminum platter
Shroeder #2 with VDH Colibri XPP
Hadcock 242 SS with MusicMaker III
Essential 3150
VAC Phi 110/110
Von Schweikert DB-99's
APL SACD 1000

Andrew's comments already cover alot of ground, but I thought I'd add some stuff since I've had a couple of weeks with it now. First, my system had a noise problem before the arrival of the Essential. In fact, I have spent countless hours with my electrician(a friend thankfully) trying everything ever described on these and other forums to get rid of it, but never had any success. It was a low level noise/hiss that couldn't be heard over the music unless it was a very quiet passage, but could be heard from the listening postion between cuts etc. With the Essential there is no noise - I mean almost non-existent. My speakers are 99dB efficient and my ear has to be within an inch or two of the drivers to even begin to hear anything. This is truly remarkable to me, and I was so relieved to finally have the problem solved that I spent most of that first night in a state of total euphoria. So, point #1 is that the unit is extremely quiet.

In my system, with the Essential the mids and highs are presented beautifully. I was using the Whest before this thru a tubed preamp and found the highs to be a bit fatiguing. That has changed dramatically for the better. There is a purity of tone (thru all frequencies) that I have not experienced before and find very appealing. I would agree with Andrew that the mid-Bass and below is excellent and I find it very much to my liking, however, Raul thought it might be improved some with a different amp(SS) so I will probably do some experimenting in the future with different amplifier designs.

Imaging, soundstaging, air etc. have all improved and a much greater perception of the venue and recording technique is therefore present. I want to emphasize what a quantum leap this was for making a convincing reproduction of what was recorded. Many albums that I thought may not have been too well recorded/produced have now become much more intelligible and pleasing to listen to. I'm not saying that it makes a bad recording sound good, but it does seem to make them more like a real event. A good recording, as you might expect, sounds outstanding and reveals nuances that make for a very convincing presentation.

I've only got maybe 30-40 hours on the MC inputs so far, and I expect that the vcaps will benefit from more time, so perhaps things could even get better, but so far I have no complaints. The Essential really transformed my system into something way better than I thought it was capable of and I couldn't be any happier about it.

A couple of other points:

J&R stands for Jose and Raul.

The price is currently $9600, but will only be that way for a few more units and will then go up. According to Raul it is priced near cost at the moment.

If anyone lives near Austin,Tx. and would like to hear the Essential in my system I would be happy to have you over.

And finally, I have had the opportunity to meet a few people in this industry that I really think are good people, Thom Mackris comes to mind, and Raul is definitely one of the good guys:-).

Matt
aoliviero OP
269 posts
 
You're welcome guys. I also noticed the quiteness with the 3150. I get tube rush with the CAT and a little RF leakage. This was completely gone with the 3150. As Mab33 wrote, it was dead quite.

Have fun listening this weekend!

Andrew
jsadurni
210 posts
 
I had the oportunity to listen to Raul`s rig on several occasions and it is an outstanding setup, a reference in my listening esperience!
The most important qualities I would point out of the system are Dynamics, transparency and overall balance...
I listened to a couple of the previous versions of the Essential, and a battery powered version also, I dont know how they can get any better!!

Congratlations!
fcrowder
191 posts
 
Raul also made a stop in Houston during his US travels and as luck would have it, he and I were able to spend an entire day listening to the Essential in my system. Unfortunately, we firts had to overcome two serious problems, loss of the diamond from my Titan due at least in part to the stylus cleaning fluid that I have been using which apparently dissolved the glue (at least it gave me a good excuse to purchase a new Titan i) and problems with my preamp that turned out to be a bad tube. When you have 19 tubes, it is not always easy to immediately identify the problem. Fortunately the Einstein shut itself down noiselessly and without effecting the rest of the system. This essentially meant that we were unable to do real comparisons. Raul was kind enough to install a backup Clearaudio Accurate which was at least five years old and had not been played for a number of years. Not an auspicious beginning. Raul is a true gentleman and probably the most knowledgeable person that I have met with respect to cartridges and phono stages. He also absolutely refuses to gossip about other people's systems and equipment or to make comments about equipment with which he is not intimately familiar.

After playing several records the Accurate came alive and sounded very good, different from the Titan but very good in many of the same areas. The Essential 3150 is built to Swiss standards (think FM Acoustics). Raul has listened extensively to every part employed in the unit, in many instances listening to hundreds of different parts before chosing the ones in the Essential. The case work is very professional. This unit is clearly not something manufactured in a garage.

The sound? Noiseless even with the volume control fully advanced, black background. There is no hum or RFI which allows you to hear very deeply into the soundstage and is particularly revealing of the type of low level ambient details that make reproduced music more closely approximate live music. It also does an excellent job at the frequency extremes. The lows are subterranean, particularly with the Cabasse A21 subs and the high end on plasma tweeters was open and extended without grit or edge. The midrange seemed quite natural. Depth was excellent as was stage width and imaging. The harmonic envelope created by the Essential differs from that created by the Einstein which in turn differs from that created by the CAT. I am hoping to hear the unit again in the spring when my Triolons have arrived and I can compare the Essential directly to the Einstein combo with a broken in Titan. At the current introductory price, the unit is a steal.
More to discover