I've built two Elekit amps - the 879S and the TU 8300R. This has all been a work up to building a dream amp of some sort but really, it's become quite addicting in it's own right: building an amp from scratch and seeing something come to life.
That dream amp (kit) so far is the ANK C-Core interstage 300B Monoblocks. First of all, they are phenomenally gorgeous - audio porn at it's finest, never mind the specs.
What is your "Lottery amp"?
Dave
That dream amp (kit) so far is the ANK C-Core interstage 300B Monoblocks. First of all, they are phenomenally gorgeous - audio porn at it's finest, never mind the specs.
What is your "Lottery amp"?
Dave
Holy Crap! I had never heard of those ANK C-Core amp kits before. I went to there web page and yes they look cool, but for Mac money? 20W of power and the same money could get you into a Mac MC275.
I understand the pleasure of rolling your own but almost 7K for a small wattage tube amp is nuts. You could build a really nice amp from some of the ideas on this site and pay a good sheet metal shop to make a chassis for you. Make it YOUR amp, customize it to look *** kicking to you. Plus when your done you could still buy a nice high end TT or preamp.
BillWojo
I understand the pleasure of rolling your own but almost 7K for a small wattage tube amp is nuts. You could build a really nice amp from some of the ideas on this site and pay a good sheet metal shop to make a chassis for you. Make it YOUR amp, customize it to look *** kicking to you. Plus when your done you could still buy a nice high end TT or preamp.
BillWojo
Thx BillWojo!
I believe most of the cost of the ANK amps is in their transformers. I was looking at a price sheet for them recently and saw one for $13,000.00. Just the tranny. I don't know if these things fall into the same snake garden as overpriced jewellery interconnects and speaker cables, but I'm thinking not as much.
At any rate, I haven't spent near enough time here and so will start looking around.
And my question still stands and maybe that dream amp is here. Show me some links?
Thx
Dave
I believe most of the cost of the ANK amps is in their transformers. I was looking at a price sheet for them recently and saw one for $13,000.00. Just the tranny. I don't know if these things fall into the same snake garden as overpriced jewellery interconnects and speaker cables, but I'm thinking not as much.
At any rate, I haven't spent near enough time here and so will start looking around.
And my question still stands and maybe that dream amp is here. Show me some links?
Thx
Dave
You are looking into right direction of snake oil 🙂
Just think logically - what exactly can cost half of the car in ancient old, primitive technology ?
What i read about AN there is a lot of snake oil "theory" in there transformers (and no relation to the price). The best HiB cores are not so expensive as some people say they are.
At a test at the European triode festival the AN has not a very good bass response compared to the best test ( lundahl and AE electric)
At a test at the European triode festival the AN has not a very good bass response compared to the best test ( lundahl and AE electric)
Ok! I am late to start my work day because I keep moving to the next thread or opening the next link in another tab. I found one where the fellow wants help choosing his next build but he is limited in funds. My limit is closer to the $7k I am obviously willing to spend on the ANK. Give me some kit ideas?
Thx
Dave
Thx
Dave
Well now, that's a darn good question. 300k I believe? Now you have me guessing a bit. I'll see if I can find out more accurately but maybe I'm looking at it wrong. The coax has it's own crossover for / between the 12" full range and the tweeter. The low frequency is fed separately to a plate amp.
That's about right if you spend about $1200 on transformers.
I scratch built a 300B with expensive iron, parts alone cost about $2500
I would scratch build one with exotic parts and spend half the cost.
You can get a nice chassis from Landfall Systems and do laser engraving to make it look nice
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This should be driven by an amp with low output impedance, or you will hear peaking at
600Hz and 5kHz. The latter is especially troublesome to hear.
Still haven't seen any suggestions? The 873s with KT88 wasn't too bad but lacked a little something. The 8300 is still in its early stages with less than 40 hours on it but in 300B configuration is pretty saucey already. The ANK is 20 watts per channel and I was thinking that would be more than I'd ever need with the Super Vs.
Suggestion: Thomas Mayer's 6CB5A kit with interstage transformers. Get custom output transformers from Dave Slagle, I am sure he can wind you something magnificent, especially as they won't have to be full range. You can avoid a lot of high frequency and inpuls problems when you can live with a -0dB point at 300Hz.
You can check out Tom Christiansen's Damn Good 300B SET Amp:
Damn Good 300B (DG300B)
Very well engineered 300B amp. Tom is also a diyAudio member and responds quickly to e-mail. He is based out of Canada now. You can drop him a note.
Damn Good 300B (DG300B)
Very well engineered 300B amp. Tom is also a diyAudio member and responds quickly to e-mail. He is based out of Canada now. You can drop him a note.
Hi kaputt,
what is your experience with "limited range" transformers? I recently got a pair, PP, 8k:8R, 9H and 11 ohms RDC for the primary, to play from 400Hz and up. I went for low RDC and low insertion loss, keeping a large core (each weighs about 2,5kgs).
Another option would be a much smaller core, but with more turns of thinner wire, thus increased RDC.
http://www.diyaudio.com/forums/tubes-valves/272213-output-transformer-100hz-up.html
I am just trying to collect impressions,
many thanks and best regards,
Erik
Hi Erik,
the lower you want your lf roll off the more inductance you need which means more turns of wire which, more important than the DCR, increases the interwinding capacitance. The higher the capacitance the earlier your high end will roll off and you also get more problems with ringing.
There is a lot more horrible stuff happening but that's the most important in that context.
the lower you want your lf roll off the more inductance you need which means more turns of wire which, more important than the DCR, increases the interwinding capacitance. The higher the capacitance the earlier your high end will roll off and you also get more problems with ringing.
There is a lot more horrible stuff happening but that's the most important in that context.
It's all about good design and i think that more transformer manufactures should be more open to give proper datasheet about there transformers.
For instance something like this:
Rp=3700; Rs=8
Copperloss 0,19dB
Frequency response -3dB 8Hz-110kHz (measured with el34 in triode mode)
For instance something like this:
Rp=3700; Rs=8
Copperloss 0,19dB
Frequency response -3dB 8Hz-110kHz (measured with el34 in triode mode)
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