Maybe. I’m interested in who the buyers for these will be. Why? Because per Paul earlier in thread it’s an upsized 300 - meaning generally same technology just bigger ( in contrast for example to m1200 which was entirely different tech from m700).
So 300’s I think are already 300 doubling to 600 at four. These presumably twice that. Interesting the user profile who needs/wants that delta (at same tech and double cost). Sure there are beastly speakers out there that benefit from it but I’m interested to see who the users are with those speakers that are going to be into these. Maggie 30 owners would be one that comes to mind and possibly could be a cost synnergy/compatible
But then you know what the bias into class A is……higher than the 300’s were.
Not that I’d knew…but it makes sense.
For me it would be interesting what stops an even higher bias…the reliability or dimensioning of parts used (mainly heatsinks or also others?)…or just the desired output lowered too much?
Regards to the M700 vs M1200 comparison which is the addition of tubes and additional power. Looking at this brief synopsis of the BHK 600 I believe there is a lot more of a difference in the BHK 300 to 600. Double of the capacitance is huge. Larger power transformer 50% more than BHK 300! Power is where it is in this hobby everything that I’ve heard that I’ve fallen in love with have had the one thing in common “lots of power and power supplies”. Comparing the BHK 600 capacitance 300,000 the Stereo Gryphon APEX has 500,000uf per channel and 1 million in the mono version! That’s $100k stereo and $200k Mono. I got off track and I’m not saying the BHK will give the top of the line gryphon a run for its money because I haven’t heard either but looking at the preliminary specs even at $32k the BHK 600 is a deal and I’d be willing to bet there’s a bigger gap between the 300 vs 600 than the 700 vs 1200.
I won’t be trading in my 300’s or selling to get 600’s but I’d love to hear them on my system!
Very cool… I may be able to afford them used. Just wish those tubes are in the front with a removable clear window so we can admire them while listening…
I wasn’t intending to minimize the likely performance gap between 300 and 600, which should be massive at double the price, but only pointing out that (per Paul) it’s the same basic technology just massively upsized.
Whereas 700 and 1200 arguably could be in completely different families as one has a tube front end and one the 3p modules with some tweaks but clearly the 1200 with tubes is very different animal from 700.
600 isn’t different animal than 300 just a much bigger animal, it seems
emailists said What was the answer regarding the exact Wattage of class A? Is it in fact 40 watts?
It is about 1W into an 8 Ohm load. Every increase of idling current of a factor of 1.414 will increase the class A power by a factor of 2. By doing this, it will quickly increase the heat sink temperature to values that will shorten the life of the components inside the amp. As I have said in a previous post, the sound of this circuit is surprisingly independent of the actual idling current and class A power within reason and the idling current it is set at makes for exceptional sound and reliability.
Right Timm…I posted the photos because that is what Vern(baldy) is using… I would love to hear them in action. I own the Coda 8 amp and the first 18 watts are class A. I love the sound of the # 8. According to the meters on the front panel I never really go beyond about 5 or 6 watts in my comfortable db range of no more than 90 or 95 db…plenty loud!
Here is an interesting future comparison. Say the upcoming BHK 500 is 500 watts per channel at twice the price of the BHK 250 that would be $16,500, the same price as the BHK 300 monos. I wonder how they will compare. Of course I am just guessing of the price, maybe and hopefully won’t be twice the price.
The question is, would you be wiser if you’d know it has a 40 or 60% A bias? I guess questions like “what’s 100%” and how this compares to others would follow
I couldn’t judge any component by its specs, except power rating (and even that doesn’t mean much in some cases).
obviously two very different designs.
