音響兩三事

[Leo Yeh]

[Leo Yeh]

Raidho Diamond D-2

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Prices D-2 and D-3

White or Black - $43500/66000
Walnut Burl - $48000/73500

[Leo Yeh]

Raidho Diamond D-1



Price black $25500, walnut $28500 with stands.

Release at CES 2013.

Raidho has for the last 6 years been working with cones from Aluminum-oxide, as that is one of the hardest and stiffest materials, placed at a 9 on the Mohrs scale for hardness. We wanted a stiff material as to move the membrane resonances up and away from the pass-band. The ceramic cone from the C.1.1 has a first fundamental at app 12.5 KHz..(app 3dB peak) and we use the driver below app 3KHz where we cross it over with a 2.order roll-off . This is already in absolute terms an incredible performance...

Then why look further...?? I guess that is just the way we are, seeking and wondering what if...... Diamond is just a 10 on Morhs scale.. From nine to ten is not a big number, but in real-life values that one digit translates into a material that is 140 times harder than the ceramic we currently using... That mowed the resonance peak up where we cannot measure. Does it matter.... Oh yes it does... Is it Costly... Dont ask...

What is Diamond, and why bother.

Diamond is carbon locked in the tightest possible configuration. Natural Diamond is rare and formed under extreme pressure deep deep down under the ground. Pure diamond is pure crystalline bonded in an SP3 triangular structure, it’s totally glasslike transparent. (some say even liked by woman).

Industrial diamond is formed by a number of different industrialized processes where carbon atoms are forced so close together, (by pressure or by speed) that they can form the hard triangular Diamond SP3 bonds.

At Raidho we work with a process where the pressure to form the Diamond Bonds is created by building the needed pressure is formed by speed where our ceramic membranes are bombarded by carbon ions at speeds close to light. I our process we can reach around 50% SP3 bonds in the 10 um thick layer we build on top of the ceramic surface we have on our membranes. The rest of the material is SP2 bonded carbon “Graphite”

We have found that the 50% shearing between SP2 and SP3 is the optimum point for the process ability, the bonding and the improvement in stiffness ratio.

We could process the surface layer into more dense structures with more SP3, and less SP2 but then we would have to reduce the layer thickness and thus get less of the improved stiffness we are searching for. The balance is the internal stresses created in the diamond forming process. If stresses are too high the result becomes brittle and breaks the bonding to the substrate. With just an increase to 60% we would have to reduce the thickness to 1/5 and thus loose most of the stiffness gain. The Graphite Content makes the Diamond Layer Black(ish) in finish

With the Layer we have we are capable of improving the Stiffness of the cone so much that we push the first fundamental resonance outside the 20 KHz pass band we normally associate with HiFI, this means that the resonance peek (which by the way is “only” 3 dB) is damped more than 36dB by the crossover and is also pushed so far out that the energy content is the music signal is vanishing low. With Diamond membranes we remove this last bit of material coloration emerging from inner material vibrations in the Cone.

While the C series already set a solid mark for resolution and naturalness, the D-series just takes you that one step closer. To be Honest I was astound by the fact that something you can’t even measure on the finished speaker could make such a profound difference. It’s a totally new Ballgame, moving the target for the natural being there to a completely new level."

[Leo Yeh]

Goldmund Apologue Anniversary



Celebrated in 1987 for its unique design by the New York Museum of Modern art where it was displayed, and for its unique audio quality by worldwide audio enthusiasts who bought one of the 50 pairs then produced, the Goldmund Apologue stands forever as a major milestone in Goldmund history.

25 years later, Goldmund is paying a tribute to this extraordinary product by issuing a Limited Series of 25 Goldmund Apologue Anniversary with an exactly identical design but with all the technological progress made by the company during those 25 years.

The 1987 edition of the Apologue was a 3-way passive speaker. The Apologue Anniversary comes with twice as much drivers and built-in amplification totalizing 3600W for a pair.

To this extreme power, Goldmund added the latest signal corrections developed by Goldmund Fundamental Research Department. If it is scientifically correct to say that the Apologue Anniversary is 100% corrected both in amplitude and phase, providing for the first time a “perfect response” from a pair of Speakers, we prefer to look at the technical achievements in this model from another angle. We do not develop technologies or manufacture equipment just for the sake of it.

Our ultimate objective and reward is to create emotions.

We believe that the more perfect the sound reproduction, the more intense these emotions will be. So we focus on the results the technologies we develop can provide in this sense. These are listed below:

・Incredible spaciousness,
・Each instrument is positioned at its correct place,
・Complete stability of the image,
・Perfectly well defined trebles,
・Extremely neat bass,
・Ultra high definition and precision in the voices,
・Higher playback levels without distortion,
・No fatigue to the listener, even at extremely high levels.

To the perfection of the sound, we also wanted to add the highest level in the design, ease of use and installation.

The signal feeding the Apologue Anniversary is sent exclusively wirelessly, so the 2 speakers of a Stereo System can be presented without any cable, except for an AC plug that can be installed below the speaker. So the superb design, with all its details can be admired by walking around the speakers, a possibility usually dangerous due to connecting cables. Goldmund thinks there is no reason to admire such an exceptional sculptural object only from the front and a pair of Apologue Anniversary can be observed as if they were in a Museum, even if playing Music at the same time.

The Apologue Anniversary will be available as a standard version with the Goldmund aluminum finish but is also customizable in any desired finish thanks to the services provided by the Goldmund Shop.

About The Goldmund Custom Shop

Since this very special product will be purchased by a happy few very special people, we have decided to sell the Apologue through a VIP channel that was initially developed for the Goldmund Media Room: The Goldmund Custom Shop.

Thanks to the services offered by the Custom Shop, buyers can require a specific finish that they can select with Goldmund Custom Shop experts. It also provides them with unique services that include the system to be installed by Goldmund specialists from our Geneva factory, who will to tune it exactly to the customer room acoustics and setup. These engineers will travel anywhere in the world to customize Apologue’s configurations and make sure that the level of the system is up to the customers’ expectations.

In a time when all traditional audio products are usually sold as cash and carry and are heavily commoditized, such a personalized product and service are a privilege that only the Goldmund Custom Shop can provide.

[Leo Yeh]

Goldmund也出耳機？

很像HiFiMAN改的呀....


$12000 including the HP 2 amplifier.

HP 2 is using Telos amplifier technology, has analog and digital inputs and Leonardo digital correction.

Release date - June 2013.

[Leo Yeh]

Goldmund也要推出無線版的Micro Metis

[Ted Chen]

The 20th Anniversary of Ayre Acoustics.

Arye 慶祝20周年紀念型號。

[Leo Yeh]

這有趣，加拿大Verity Audio居然推出了Monsalvat 6聲道數位前級處理器，32 bits, 384 Khz ADC/DAC，電子分音，時間延遲....並採電源分離供電.........配合旗艦喇叭Monsalvat推出的嗎

一直覺得紅色的LOGO是"可樂標"呀

We are happy to show for the first time the new Monsalvat 6 channel digital preamp processor. It features a 32 bits, 384 Khz ADC/DAC converter, programmable digital crossover, time delay, analog/digital inputs, adjustable output level for each channel, remote control, volume control and a separate multiple power supply unit.





Post from Tapatalk

[Leo Yeh]

Introducing the all-new Statement series from Wyred 4 Sound. The Statement series will be our new reference line of products, combining cutting-edge technology, functionality and an exciting aesthetic. For THE Show, we will bring the Statement amplifier. Come by room 211 (2nd floor) to see and hear this groundbreaking product!
Highlights include:

• Proprietary Wyred 4 Sound Class-D amplifier design
• 250 watts stereo @ 8Ω, 500 watts @ 4Ω
• 750 watt fully-differential bridgeable mode
• Transformer-coupled input stage
• Massive power supply
• 5” full-color touchscreen display/control
• Premium binding posts and internal wiring

[Leo Yeh]

http://magazine.businessweekly.com.t....aspx?id=65831



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