HAL 18000

Did you forget a word here? (may go up/down) Actually they license their technology (SVS) so any company could buy the license, use cheaper hardware (or include it in A/V receiver, or other devices) and target a larger market. I guess the rep was Lorr? He knows his subject very well. The head tracking is excellent, especially for demo.

$3360 That is the price of the bundle with the Stax system. Without it I think it is around $700 less.

I have a Realiser. I am using it when watching bluray and it is worth every penny. I don't have a room where I can have a full sized surround installation. Like some other owners here I went to Los Angeles to have measurements done at AIX and Mi Casa Studio. It is an expensive equipment but you save on real speakers. How the measurements perform on another person depend on head/upper body shape and outer ear, but I don't think it can be very bad. The thing is that if you are buying it you will want the best of it, otherwise it is a bit a waste. I am not using it for music. Maybe sound engineers have an interest for it but I don't see the point for just listening music It is bundled with the Stax 2050II system. They say it has optimal performances with the Realiser but you can use other headphones, although they consider electrostatic are the best match.

Indeed. I checked the prices, copper is around 4x more expensive. So far 5 T2 have been "officially" finished, what is happening with the remaining set of 15 boards/chassis sent by Kevin? Have they been quietly completed or are still work in progress?

Thanks for your answers and warnings. -Complexity is one thing. With work and patience it can be overcome and I am willing to do that. Actually that is where is part of the fun . It will take many month without a doubt, but I am not in a hurry. I will reopen my electronic courses material if necessary (I never thought I would do that for a hobby). Also I am single so more time to spend on it . Hazard is another thing. It is always around, even someone here received a shock while building the T2 (Inu I think ). Some times ago, before I got an interest in the T2, I read someone speaking of its B22 amp and the danger of high voltage but I did not gave much interest at this time. I will do searches to understand what are the risks. It is definitively something not to be taken lightly. Do you have some documents/links describing the safety rules when working on high voltage circuits? - In my office there is an area where technicians do calibration (and repair maybe) on test and measurement equipment for telecommunications. I will have a chat with them one day to see what sort of equipment they have, perhaps I will see intersting things. - Why using aluminum for the heatsinks and not copper? As far as I know copper has a superior heat dissipation capacity. Is it a matter of price or is it easier to work with aluminium?

Hi all, I finished to read the thread. I think I will have to read everything again because it is a bit dense for me. Anyway it was quite interesting, and I am going to build this T2. That is going to be my first DIY project. I am not a total newbie, I do soldering sometime and I did have quite a lot of electronic courses during my studies, but I don't remember much now. - PCB boards: I will need to have the PCB boards built. The latest files I found are from Kevin post : Correct me if I am wrong, but these are the files I have to send to the PCB manufacturer? I did a quick check and there are a few options available: - PCB boards: Material: FR4 seems the most common - Finish: HASL lead free, Electroless Gold RoHS, Electrolytic Ni/Au RoHS, Chemical Silver RoHS - Copper Weight (oz per sq ft): from 0.5 to 5.0 - PCB thickness (mm) 1.6, 2.5 Can someone explains me what should I choose? - Components: - Many links to components retailers has been given in this thread, I bookmarked them. - One thing I am wondering about is the transformers. I am living in the UK like Craig so I may get the same transformers, but what if I want my T2 to work on 110V and 220V? - It looks like most of issues are related to defunct/counterfeit components. I think it is a good idea to test them individually. I have a basic multimeter which measures voltage, current, resistance and continuity. What sort of good multimeter would you recommend me? There are several references to a curve tracer for transistors, is it absolutely necessary? - Chassis, heatsinks: Well, at the moment, I don't know how I am going to do that. I even don't know where to start. I don't remember having seen details on how to build them. Any help will be highly appreciated. And congratulation to Kevin for his work on this DIY T2 and everybody who already have a working unit!