God is in the irons - Silver Rock AVC - handmade in Switzerland


I got my 2004 Audio Consulting's Silver Rock AVC passive line-preamp... connected to my Partridge/Allen Bradley 300B mono blocks feeding the Cabasses' and Meridian's digital...

... and listened...

At the very beginning,  still remembering when Luxman AT 3000 was in place, the sensation was of a fuller-body, thicker overall sound.

I immediately felt the difference, yet fearful the sound was a bit slower than with AT 3000's... ahem, no! Thickness or...

Better: less bass shy...

These were just the first minutes listening... a sensation.

I began to swap discs... female vocals and lute, electric guitars duo, double bass and acoustic 12 strings and classical.

The more I listened the more I enjoyed the result: the thickness disappeared and the resolution improved... more and more...

What thrilled me was that, when going louder and louder, the volume wasn't absolutely affecting the size of instruments... an acoustic guitar was just louder, not larger.

When I got conscious of the above, I better dig and paid attention to the phenomenon on more disks; furthermore, studio noises were very present and naturally blended with music.

The loudness improved: loud was really loud... but not annoying or hurting... never, also when reaching a truly high climax!

The sense of clarity and naturalness become almost painful... I had some business, and simply had to force me hard to stop listening to more and more and more disks... quite embarrassing;-)

Summing up: clarity, resolution, inter-notes silence, natural imaging and depth and an additive, strong overall beauty feeling... in my opinion, all these aspects are top class...

The Luxman AT 3000 and Fidelity Research AS 1 sure are top contenders... but with the Silver Rock the extremely low noise-floor makes you so easily aware of instruments decay, mixer on and off, guitar amps hums...  everything is so lively.

Audio Consulting's previous moniker was Silver Rock... a slightly opinable brand-name...

... but a younger Serge Schmidlin wasn't that wrong!

Silver is silver wire used in coils... Rock... well: it's the rock-solid sensation of rightness... making me pretty sure I nicely spent my money for such a result.

Tatsuyoshi Moriyama STC4212 single power amplifier...

Another Tatsuyoshi Moriyama wonder just completed. A special order from a music lover. The STC4212 single power amplifier… 

Satana Abraxas MoFi SACD release

“Santana "Abraxas" is now available on Mobile Fidelity Sound Lab SACD. This groundbreaking album from September 1970 was painstakingly transferred from the original two-track master tapes utilizing Mobile Fidelity Sound Lab's hot-rodded Studer A80 tape transport and DSD converters. As with previous Mobile Fidelity versions, the channel orientation of the music accurately reflects the intentions of the original session producer, Fred Catero.

These all new transfers owe their extended resolution to Tim de Paravicini of EAR and Yoshino fame, with his modifications to the tape reproducer amplifier increasing the playback frequency response of our transport from 5 Hz to well beyond 50 kHz.

Dan D'Agostino image galore

New official images of Dan D'Agostino Momentum S250 Stereo amplifier and Momentum M400 amplifier etc...

Wadax Atlantis ultimate DAC insights

“The Atlantis DAC is the result of our most super sophisticated circuitry and feedforward algorithms. A lot more of complexity that also delivered a lot more of performance, not merely a marginal improvement. During the design phase of our new discrete output stage, we obtained some crazy simulation results that yet we have not been able to measure. Two days ago we measured the total audio output with the latest Audio Precision ApX555, currently the World’s most accurate audio measuring device. Our simulated result is actually below the background noise of this instrument, so we cannot really tell where are we. See the picture. First harmonics are at -180dB. So we now know we are at least as low as the lowest noise floor of all available measurement instruments available at any price. We are working on our own measurement device and flow, using advanced statistics and crosscorrelation between different reference set vs the device under test (The Atlantis DAC)  to dig deeper into the noise floor.

Beside the singular measurements of the Atlantis DAC measurements are singular, at the same time, I would like to bring up some experiment and experience around this.

On purpose I altered some aspects of the circuitry, minor ones, plus some other changes in the implementation. Curiously, all these changes are not revealed in the typical set of engineering measurements. Of course, all measurement iterations were done following the same measurement procedure. A scientific method. Apparently no differences on measurements were found. However, from a musical perspective, the differences are huge. The capability to create and deliver emotion completely shifted.

Measurements count!?

"I hear and read from time to time „measurements do not count“. I think we have to see the whole picture. If you compare a good valve amp and a kW open loop solid state amp we can assume a THD of around 0.1% for both devices. Then it makes no sense just to compare the measurement results, since both create distortions at the same level, which are clear audible, so you have to trust your ears and choose the one, which pleases your ears in the best way. But with the TRINITY line we have opened a new chapter, now you can compare an almost distortion and noise free line with comparable “strong” distorted devices and then I am sure measurements count.

An example, years ago a guy wanted to listen to our system and wanted to compare it with his “Kronzilla” tube amps in combination with his TRIO horn speakers . So we installed our old triangle set-up and played from Fried Pride´s ”Master Piece - DVD-A (192/24)” the first title “SUPERSTITION”. At that time only DVD-As were available with recordings of 192kHz/24bit. After that we used our DAC and his big valve amps and I was shocked, since there is one point at play time 2:30, where a very silent bell is ringing in the right channel roughly 2m above ground, whereby the overall music was almost at full level. This bell instrument was not audible with his tube amps!!! I was the only one who noticed that, because I had countless listened to this title. So I told the client, listen to that point and we played the title with our amps again and he confirmed yes there is a bell. Than we played the title again with his valve amp amps and there was no bell at all. We did this check a couple of times and the result was always the same.

From my point of view measurements counts, if you really want to listen to all the music content of a recording.

By the way, what do you think, stands in the target specification, if a semiconductor manufacturer is designing a new “audio opamp”. Do you really believe they do not care about distortion, noise, bandwidth, linearity, stability under capacitive loads and so on? That are the key parameter beside the costs, if not they would still sell the old TL082” - Dietmar Bauer, Trinity Audio.

ORSONIC SG-1E Bias Calibrator Side Force Checker

ORSONIC SG-1E Bias Calibrator Side Force Checker for Tone Arm - Antiskating Gauge/Elliptical Stylus Version

Mancave concept!?

Seems like Mancave concept will never be outdated!? The new Estelon Model YB being showcased in Singapore as part of an exclusive lifestyle concept "Mancave" at the renowned Tangs high-end lifestyle and fashion store at Tangs Plaza.

Magico M3 speakers

"Magico is the world’s first manufacturer to utilize graphene in the development of a leading-edge loudspeaker cone design. Graphene has many extraordinary properties and is approximately 100 times stronger than the toughest steel. The newly designed Magico six-inch midrange and seven-inch bass driver cones found in the M3 are both manufactured from Multi-Wall carbon XG Nanographene and a new proprietary ultra-stiff carbon weave which is 20% lighter and 300% stiffer than the cone material used in previous Magico loudspeaker offerings. The underhung neodymium base motor system provides an ultra-stabilized magnetic field for the pure Titanium voice coil to operate within. This radical new driver design offers the lowest THD in the industry and sets the performance benchmark for others to aspire to.

The M3 midrange driver operates in a purpose built sub-enclosure made of a proprietary polymer that enhances midrange control and articulation. This sub-enclosure concept was first used in the S3 and is now applied to our more recent 3-way speaker designs. Three seven-inch M3 bass drivers are vertically aligned to achieve ideal room integration and reproduce the lowest registers of bass frequency with speed and accuracy. A solid copper gasket is applied between the driver’s chassis and enclosure to maximize the coupling effect and diffuse resonances between the two surfaces. The M3 bass drivers are optimized for minimal music related distortions in the frequency and time domain using the latest state-of-the-art FEA simulation of acoustics, mechanics, electromagnetic and thermal behavior. The testing process is now completed on a single platform allowing optimization levels to be taken to a higher level."