Amadeus - do you have any details on the circuit of your new preamp at all? I see a 300b tube in each channel. It seems full dual mono layout of course as it is separated into 3 mini chassis. But anything more about the preamp circuit?
Zanden Chukoh preamp finally arrived.
- Thread starter amadeus
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Dear Marcus when you have arrived that day at my Studio i have made so many changes on my system that day 2 pairs of Interconnect cables where brand new whit 0 hours by example also some power cords where brand New and we had reinstalled the Thales Arm and Blue Dragon Cartridge and also this needed some settle in so what i have heard one week later and what we have heard together that day where far from each other come and listen again if you are in the neighborhood of NL.
Yes the output is 2x300B tubes its a 3 chassis main unit and a power supply the power supply uses 4x6Ca4 Tubes 2 for each Chanel.
Great! Can’t wait to read your report. K10G2 is a great preamp. I have heard it many times in different systems but I don’t think it can compete with the Chukoh.
BTW, I still think a lot about your beautiful listening room. Photos really don’t do it justice. It has everything one can wish: Great view on the lake, looks exceptional and sounds great. Congratulations.
Let me know when you get your new Rockports...
Dear Marcus thank you for your kind words
When building a dedicated a Studio we did all that we can do counting measurements length wide used materials dedicated building materials but whatever you count and do it is always a surprise how its gonna sound in real and i must say for 92% i was positively surprised specially the Bass i was little afraid for is whit out any Bass Trap just perfect i can hear that there might be some fine tuning in the higher register but this are small moves to get right... By time i hope to get right this last 8% too.
Thank you for sharing this beautiful picture whit us!
I did drive the Rockport Avior and Cygnus Speakers whit the Robert Koda Power amp it works very good indeed its not the very last word in bass authority but even in my last Studio which was 2x times bigger (to big for a State of Art System) as my current Studio most music was dynamic enough to feel the live energy.
Well my intention was Arrakis but Andy Payor stopt building Arrakis speakers the Rockport Cygnus is a great speaker for the price a Bargain the new Lyra is the King in Medium sized speakers maybe the Lyra or even the Gryphon Koda is in my future consideration...
They are my favorite speaker, the Arrakis. I intend to find them 2nd hand at the right time and price.
Hi Billy...actually i have listened to the Arrakis in Hong Kong with Ernie Lau. I have to say, of all the auditions i have ever done, it was probably my number one favorite. I have not listened to them all...but multiple X2, XLF, Focal Grande, Martin Logans, Genesis 1s (also wonderful just way too big!), various Sonus Fabers, Hansens, Magicos, YG Acoustics, etc.
There was something about its effortlessness, scale, tonal balance and absolute quiet which has amazed me in ways no other speaker has. For me, right time, right price, and I would certainly buy them.
That said, you have remarkably more experience than I from the sounds of it...what do you not like about them?
There was something about its effortlessness, scale, tonal balance and absolute quiet which has amazed me in ways no other speaker has. For me, right time, right price, and I would certainly buy them.
That said, you have remarkably more experience than I from the sounds of it...what do you not like about them?
Despite it’s modest power rating, Koda K70G2 is not a pussy power amp. Here’s what Martin Colloms wrote in his review (Hi-Fi Critic Vol.5/No.3).
The Class A regime appears generous with up to 900W of continuous mains power input (450W per channel), for a specified “approximately 70W of undistorted output for 3 to 7 ohm nominal load factor”. Note
that it does not say ‘per channel’! The heroic build is reminiscent of that famous Mark Levinson ML20 Class A amplifier (20W/ch 8ohms, 40W into 4ohms), which drew some 400W standing.
Assuming the Koda is intended to stay in class A down to 6ohms at least, that’s 110W x2, which at the textbook 25% efficiency is 450W per channel. It’s a bridged design, with a single-ended direct coupled Class A amplifier on each side of the bridge, which is why it needs so little supply voltage. The output section has a pair of 33,000uF reservoirs, while the triodes get four 450V 560uF capacitors. Clearly, no chances have been taken with undersize power supplies.
There’s more written about it’s driving capabilities if you’re interested...
Audioexotics is known for having many many GOOD minions. That is a very close community I've been told.
The Koda K15EX is also a Masterpiece Chukoh is too new for me to compare later i can say more...
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