I've didn't get the chance to get in on it. I mean everythingwent lickitysplit in, like what, 24 hrs. 
He said he's not making more so that makes me sad. I'd be interested in obtaining 32 PCBs, but at this point I'm not sure how I can move forward without availablity. I've PMed him and haven't gotten a response back yet. perhaps he doesn't want people to make their own PCBs. :-(
Eternalightwithin
He said he's not making more so that makes me sad. I'd be interested in obtaining 32 PCBs, but at this point I'm not sure how I can move forward without availablity. I've PMed him and haven't gotten a response back yet. perhaps he doesn't want people to make their own PCBs. :-(
Eternalightwithin
I've didn't get the chance to get in on it. I mean everythingwent lickitysplit in, like what, 24 hrs.
He said he's not making more so that makes me sad. I'd be interested in obtaining 32 PCBs, but at this point I'm not sure how I can move forward without availablity. I've PMed him and haven't gotten a response back yet. perhaps he doesn't want people to make their own PCBs. :-(
Eternalightwithin
Hi Eternalightwithin,
Owen is the nicest guy for sure but as I understand, he's currently working on a future retail product for this amplifier and said so in the thread. He won't be making more DIY pcbs and I totally wouldn't expect him to do so even though many would want one, including me.
I would be doing the same thing if I was going commercial with a nice product like that.
Good luck anyways
Do
kind, but not stupid …
personally I feel pushing someones kind nature to undermine his own product is a bit uncool. hes given quite enough away to the community IMO. He cant stop you making your own for your own personal uses against his wishes, but you really expect him to condone another group buy of the design he is in the middle of financing commercial amps with?
also Eternalightwithin 32 amps.... for personal use? you realize thats roughly $6-7K minimum investment before casing?
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huh? lower than what? lower than the cost of parts?
What I mention above is a rough pricing for parts only for the 32 channels Eternalightwithin was saying he asked opc about getting pcbs for.
I dont know what bracket opc will be aiming at for the commercial amp and i'd prefer not to second guess him. it will depend on chassis, forecast support costs, distribution, advertising etc. I wouldnt expect it to be anything close to parts cost, but I suspect you misunderstood.
agreed the numbers are pretty unreal, anything that defies proper characterization by some of the worlds higher/est end measurement gear certainly raises eyebrows alright.
What I mention above is a rough pricing for parts only for the 32 channels Eternalightwithin was saying he asked opc about getting pcbs for.
I dont know what bracket opc will be aiming at for the commercial amp and i'd prefer not to second guess him. it will depend on chassis, forecast support costs, distribution, advertising etc. I wouldnt expect it to be anything close to parts cost, but I suspect you misunderstood.
agreed the numbers are pretty unreal, anything that defies proper characterization by some of the worlds higher/est end measurement gear certainly raises eyebrows alright.
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ok in other news, North america recieved the kits I sent today, things should start to heat up around here. I connected my amps up to some revelator miodwoofers just on the floor fullrange driven direct from my dac balanced. 15 clean watts is more than you think hey? well more than i was expecting, not being traditionally into high efficiency speakers or horns. lack of any XO will have helped of course. I cant comment much under those conditions, but there, an on topic post =)
Been waiting on the custom heatsinks but I see now that won't happen.
Are you using some 4 ohm FR speakers I haven't heard of? This amp is closer to 10watts with 8 ohm speakers (see the first page).
What are folks doing for heatsinks now they are going to the commercial amp onlu? Is there possibly a digikey part number for individual heatsinks that we could add to the BOM? Or is the long bar connect to chassis/larger sink the method of choice?
oh Ian cant take caffiene anymore? thats horrible...its over-use is a clue into my late night/early morning snippishnessbut i couldnt do without my illy
haha tis now a vice thread
At that price I'll take a 5 pack!
what's happened here?Haha, now that's a mean trick. I explicitly block qusp (no hard feelings!) and then he appears in a full quote on the topic of coffee...
Sorry, can't resist pointing out that there still seems to be stuff we seem to agree on.
(apologies for the cell phone picture quality)
I'm having much trouble to find a correlation between the topic from the headline and the previously quoted posts.
Obviously, my English is not good enough to find this.
Unnecessary posts and collateral removed - More clean up. Stay on topic, please.
absolutely necessary !!! But only the moderators can do this.More clean up. Stay on topic, please.
I am very angry after my try to get informations arround the headline topic.
The associated thread:
http://www.diyaudio.com/forums/group-buys/204439-wire-lpuhp-16w-power-amp-parts-gb.html
BTW: where is the schematic?
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tiefbassuebertr:
No need to get upset... all the information you need is in the first three posts. the BOM, the layout, the schematic, the measurements, and the description.
All you need to do is look
I would agree that the SNR can get pretty bad in these threads from time to time, but I've never run across a thread with more than 20 pages that doesn't contain some sort of banter and bickering... humans will be humans.
That's what good moderators are for... I don't envy them
Cheers,
Owen
No need to get upset... all the information you need is in the first three posts. the BOM, the layout, the schematic, the measurements, and the description.
All you need to do is look
I would agree that the SNR can get pretty bad in these threads from time to time, but I've never run across a thread with more than 20 pages that doesn't contain some sort of banter and bickering... humans will be humans.
That's what good moderators are for... I don't envy them
Cheers,
Owen
tiefbassuebertr:
i'm lost for words … did you just trawl through the thread looking for argument quotes so you could post a provocative post telling people not to argue so much and then complain about lacking info thats in the first page? also, there are no PCBs, you will have to pirate the design like everyone else
regal, i'm also not quite sure what to say to you, the BOM contains a standard heatsink part number already, the heatsink had nothing to do with me, but I wasted a good 100hrs of my time trying to organise it, my own enclosures and several alternatives for the group of which none were for me (actually I considered the copper bar) and ended with a bag of parts and no PCB, you lost nothing and spent no time; apparently not even reading the BOM. in chasing the sinks for you guys constantly I only made my own chances of getting my custom chassis LESS likely, but thats what I did
I even supplied pricing for copper bar in the right dimensions, alloy bar in the right dimensions, price per person including shipping, suppliers, 3d models. if you dont want the one in the BOM, or any of the suggestions over the last month or 2 of conversation, then i'm afraid its up to you to organize it.
my quote of the 15W was a throw away comment t change the subject from the argument and now you are arguing with it?, not sure what opc rated it at 16W into, 4 ohms I guess.
wow...........
i'm lost for words … did you just trawl through the thread looking for argument quotes so you could post a provocative post telling people not to argue so much and then complain about lacking info thats in the first page? also, there are no PCBs, you will have to pirate the design like everyone else
regal, i'm also not quite sure what to say to you, the BOM contains a standard heatsink part number already, the heatsink had nothing to do with me, but I wasted a good 100hrs of my time trying to organise it, my own enclosures and several alternatives for the group of which none were for me (actually I considered the copper bar) and ended with a bag of parts and no PCB, you lost nothing and spent no time; apparently not even reading the BOM. in chasing the sinks for you guys constantly I only made my own chances of getting my custom chassis LESS likely, but thats what I did
I even supplied pricing for copper bar in the right dimensions, alloy bar in the right dimensions, price per person including shipping, suppliers, 3d models. if you dont want the one in the BOM, or any of the suggestions over the last month or 2 of conversation, then i'm afraid its up to you to organize it.
my quote of the 15W was a throw away comment t change the subject from the argument and now you are arguing with it?, not sure what opc rated it at 16W into, 4 ohms I guess.
wow...........
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I think you should read the front page or two again about the rating of the amp. It is current limited by the buffers, lower impedance will not get you more power from this amp, opc made this clear in a few posts, then re-iterated very clearly in post #32.
qusp mentioned that there was an updated bom with the heatsink part number included, you should search it out, it happened pretty early in the thread from memory.
Firstly, to my knowledge the heat sink has nothing to do with the commercial offering from opc. It was offered by hypertune with agreement at the time that they could be posted with the GB packages.
[rant]
The heatsink offering has not eventuated because hypertune has stopped responding to any correspondence. It was his offer to make them that even made it a option to consider. It is a pretty sore spot for me that you imply that qusp, opc or I have done anything but try to get hypertune to let us know one way or the other what the status of those heatsinks he offered is. To suggest that they disappeared and went to the commercial amps is close to being offensive actually, since Feb/March qusp and I have been posting about how we've tried to get in touch with hypertune. On 3 or 4 occasions he said to us that he would start them in 'next few days' and then disappeared again. We were only able to provide info that he'd given. To my knowledge no-one but the 3 of us mentioned above even tried to follow up or find out where he was at with things. qusp and I both shared 3d models and dimensions we measured from the pcb for alternatives that had almost no bearing on us because neither of us had any intention to use those heatsink options at the time. Now we are back to square one and down $$$ and time, both of which are now totally wasted. [/rant]
yes, alu/copper bars or bom heatsink are the options left
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gents, opc said it best in this quote!
silent screamer, if you've read first 10 pages, stop now, there is nothing much more worth reading.
I could paraphrase for it if you like:
- we suggested and talked about a few different heatsink alternatives (not really relevant now since most of them were based on the assumption we could get them cnc'ed, the offer to cnc evaporated) we also discussed the temp of the opamps at 18V vs 15V and buffers and where was most critical. With 15V rails you can get away with almost no heatsink at all.
- qusp likes coffee, a lot (maybe its just Ian and I that don't drink coffee actually)
- just about everyone likes beer, a lot
- some people still want pcbs, there is none
rinse and repeat the above a few times, and shuffle them into different order as you like, you get the idea?