radiorog said:Well, I know nothing of electronics really, so I will take your word ;-)
Doesn't 2 x 8200 = more than 680 x 8??
radiorog said:Just wondering how you could get the serial number to me....Facebook? But then I'd have to give my details open to the world! =-O
radiorog said:Any ideas what you think I should do, in that I'm thinking of cancelling my order and looking around to try and fins one of these illusive upgraded versions!
How about that Noratel donut inside the Cyrus 8vs. Similar solution like the Roksan. One big Noratel and few Samwha caps and it [url="http://i42.tinypic.com/aelm3m.jpg" said:blasts away.[/url] Elna Silmic II used only where it counts, in the signal paths most likely.
radiorog said:Hey Vlad!
So, the new k2bt has arrived, and first things first...it sounds amazing! Big grins all round *biggrin* It is definitely a suitable upgrade from the brio-r, and it is actually everything I was hoping for.....and more!
radiorog said:Curiously though, the components are different to the previous one I had been sent, and different from yours. This one has the different transformer and slightly smaller caps. The transistor is labelled roksan, and the specs i can see are:
I/P 0-115v-230v 50-60hz
And the 8 caps are 560mf (with the two large ones still being 8200mf)
Whats your take on the smaller caps and different trans? How much power is this transistor kicking out? How much difference do you think this would possibly make in sound?
radiorog said:I will do a more in depth review with the whole set up soon, but the speakers match greatly with it. I was worried there might be too much boom in my small room, but this is not the case, just nice clean punchy bass and drums. (i can listen to dance music again! *yahoo* ) After about 30 mins of listening I had the thought, " the amp is showing the speakers limits". Whereas before the speakers were showing the brio-r's limits. But the sound is way better than anything i could have hoped for, and I am massively satisfied and happy, and although i'm sure the amp could work well with even better speakers, I have reached a level I will always be very happy with. So, thanks for your posts, which have been intersting and educational, and I would say correct in your judgements, you have helped me along onto the amp of my dreams....thank you! *drinks*
(its just slightly bugging me that maybe i would be getting even more performance from that different transistor and caps. Do you think i would be worth me tracking down another with the 840mf caps etc? Henly are getting back to me tomorrow regarding whether they can source me one!)
Vladimir said:As a graphic designer I work with print all the time. IMO it is not a likely mistake to make, especially with the legal consequences for exporting and selling goods with incorrect specified power data. They have the silk screen template since the begining of the K series and they changed from 125W to 140W when the K2BT came out.
If they made a mistake and wrote 175W the first time and then corrected the issue by writing 140W in the following batch, why did they kept printing 175W on the new K3 which uses a significantly changed silk screen template?
Also why did they change back from the upgraded 8x680uF United Chemicon caps and Noratel transformer to 8x100uF general purpose Samwha and generic chinese transformer? 800uF and 5440uF certanly makes a difference in the power specs.
And why did they go from 125W > 140W > 150W > 140W in the brochures and online specs?
I think they had issues with suppliers or the better parts were simply not feasable for the price, considering Roksan is a small scale manufacturing operation. I asked Roksan about certain parts before I bought the amp and they never replied. So I asked Henley about the change in the transformer and through Henley Roksan repplied that they use different suppliers for their parts. Nothing more in details.
Obviosly they have some issues and due to those the K2BT was not consistent. I hope the K3 will have a better career.
radiorog said:Well,an update on my k2bt saga. I always seem to run into issues when choosing hifi.Anyway,the amp I rreceived which I mentioned had the roksan labeled transformer had to go back as the bt wasnt working properly. They sent a replacement but it had the slightly smaller transformer.....and guess what...it definitely didnt sound as good as the kne witht he larger transformer.....or it soi ded different anyway. There was a deeper bass before and a even more live sounding feel. Before when I played massive attacks mezenine album,I found myself tapping my feet.with pleasure and really feeling the groove. I listened to the same album with the new amp and no such emotion. The emotions I was having witht the first amp have disappeared, and to me the music is not as intoxicating. I was blown away with every song witht he first amp, witht the new one I am not. So out of interest I went to a hifi shop today to look at the k3, and indeed uou were right, it houses the same transformer and caps as the first amp I had. I think thst slightly larger transformer has a slightly larger output I to the power or pre amp section and I am guessing this is where the rather noticable sound change comes from. I am gutted I had to send what was really a very cheap k3 back, but I have got clesrence from my dealer to send my current one back. My dilema now is do i risk one more attempt at getting this cheaper k3 (aka k2bt) or do i now decide i just want the k3. The sound really was that much better that I do t think k would be happy with the standard k2bt. Plus the k3 has slightly shorter signal paths somewhere apparentlyto improve clarity a little more. Yours stressed, Rog.