Coming on nicely. You need to overlay that over the other images pouring the concrete . Any idea when the project will be completed?
Edit. The left poll looks like it has a hatch above it. Is that the quick entry fireman’s pole system?
Coming on nicely. You need to overlay that over the other images pouring the concrete . Any idea when the project will be completed?
Edit. The left poll looks like it has a hatch above it. Is that the quick entry fireman’s pole system?
Well I think I may, finally be done. My room is 4mx4.5m I now have 4 monster bass traps 5 tri corner traps and 3 245? Panels for first and second reflections all from GIK. Most recent addition of 2 monster bass traps had a dramatic effect. The ATC 40 passives I have on loan suddenly blossomed in the mid range (they were bass heavy before) and everything just clicked into place.
The 40 actives arrive tomorrow though but if any more treatment is needed I may go active bass traps.
That’s exactly it
When you’ve solved the problem of overwhelming bass, that is what you hear.
And now you have it all: bass, mid-range and treble, all balanced.
A concept that is often misunderstood is decay-time.
This is a key concept for room acoustics.
All rooms have room modes. These room modes are resonances. The room resonates like a bottle being blown into.
The smaller the room, the more it resonates higher in frequency. Just like a bottle or guitar string, the smaller the string the higher the pitch.
These resonances can also be understood as a sound that lasts longer than it should, which then covers everything else: the mid-range and the treble.
Treating the room for the lower end of the spectrum is like removing a noise that would cover the rest of the spectrum. And suddenly, everything becomes clear , crisp and intelligible.
Until one tries it, one doesn’t know what it is.
And it’s not 2-3 panels that will make a difference. You really have to hit it hard to absorb that lower end of the spectrum.
One more step in the building of the listening room.
I finished the electrical part.
All circuit breakers are wired.
Each device, the Taiko Server, the Soulution 760 and the Soulution 711 has its own dedicated line, its own circuit breaker and even its own phase (I have three phases at the input, 3 x 230 Volts).
The in-wall cables, the circuit breakers and the earth leakage circuit breakers are all designed for audio.
In terms of power hygiene, I believe the maximum has been done. We can’ t do more or better (apart from placing the system on batteries).
(don’t do this by yourself unless you really know what you’re doing, and always have it checked by a professional)
Did you consider identifying the cleanest phase and putting all three on that?
Yes, I have thought about that.
But it’s not an easy task to identify the “cleanest” phase.
After having thought about it several times, I have concluded that there really is no “cleanest” phase. It depends on the time of day and the equipment used.
In the evening (or when no one’s home!), all phases should be more or less “clean”. But the only way to check this would be with a device such as the Fluke 1773.
But I don’t have one, don’t know where to rent it, and above all, I don’t have the time to dig into the documentation (days only have 24hours… ). This type of device is not used by “standard” electricians, so hiring someone wouldn’t be easy.
Beyond the “cleanliness” of the phases, there is a parameter that is ultimately much more important: the impedance.
The main purpose of “audio” circuit breakers and “audio” cables is to lower the impedance as much as possible.
In addition to audio circuit breakers and cables, having one phase per device allows each device to have power with the lowest possible impedance.
Compared to a lower impedance, I would say that the rest is secondary, if not negligible.
EDIT : This is why most power conditioners have a characteristic negative effect. They clean the power but increase impedance. This makes the music clean but sluggish, if I may say so. By isolating the audio as I did I believe we get the best of both worlds.
That’s a very tidy job.
Yeah, it’s definitely a lot tidier than the job my electricians did when we re-wired the house
I installed a single spur but had to decide which phase to use. Not particularly scientific, I simply eliminated the phase with the kitchen sockets as there are two fridges running. I then estimated which of the other two would have the least demand in the evening, when I do most of my listening.
Is it normal in the EU to have 3 phases to a domestic dwelling?
Only ask because its not in the uk, so i cant have my 3 phase welder or lathe! Well i could but the cost of installing 3 phase is prohibitive.
Oh the attention to detail, well done Thomas Best Peter
I’m located in Switzerland, so not exactly in Europe.
The standards are presumably a bit different.
For houses and flats, we have 20A to 25A in input, spread over 3 phases at 230V/50Hz.
For those living in Switzerland, between Geneva and Lausanne, I know a very capable electrician. He may either check/validate your installation or make it for you.
He knows the needs of an audio setup, as well as the equipment like the one I used for my own installation (cables, circuit breakers, etc.).
He’s really a nice guy; his company is Co’Réal Electricité Sàrl.
Message me if you need its contact info.
This is the diagram of the installation.
The wiring is obviously not correct, but it gives a good overview of the setup.
It is normal in my place (The Netherlands) where new houses usually have
We are thinking to convert it in our 100 years old house, but there are a few disadvantages too of which cost is one.
I’m in Andorra so outside the EU. There is a mixture of single and 3 phase here but we have a lift (elevator) which runs off the 3 phase supply.
The interesting thing about such an installation is its price!
It is quite reasonable compared to a luxury power cable or a fancy power strip (which is a compromise).
And it’s not that complicated to tinker
Why spoil the ship for a ha’porth of tar ?
Why anyone would go to such lengths and then use this is beyond my comprehension.
Cause it is only temporal and provisional?
Exactly. It’s only a temporary measure while the real stand is custom made!
You underestimate the effectiveness of this rack.
The mix of materials (stainless steel and thick plywood) already isolates a little from ground vibrations. It’s not much, but it’s not insignificant.
Secondly, the platforms are a sandwich made of stainless steel, cork and plywood with feet made of cork and viscoelastic pads.
The whole thing is not so bad.
I tested it!
Townshend Audio shows the same type of test in a video for its Seismic platforms (I did not tap the floor with my foot, I put a vibrating sander on the floor and observed the result in terms of isolation.)
The feet of the rack are wheels. But I could have used the Isoacoustics Gaia-Titan Cronos I bought for the next rack, and the result would have been very respectable. And probably more efficient than many expensive so-called audio racks on the market.
In the end, the result is pretty good.
I could have used it as my final rack.
A 190K system (with cables) on a ~600 euros rack
Why not after all!
I would say that its main flaw is not its efficiency but its appearance. It doesn’t fit at all with the rest of the listening room, nor with the electronics
EDIT :
And to be honest, I don’t know why I made that rack. It took me a good thirty hours of work.
Each piece of plywood was carefully sanded, then lazured, then sanded, then varnished and sanded twice. And finally received the final coat of varnish.
And I only use it for a few weeks…
I suppose I made it to know if I could make it. Like for the rest, for that matter.