Lol, I was just saying the same thing about you. So I guess we can all move on.
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Amps that can drive the HiFiMan HE-6 planar headphones - Page 163post #2431 of 32111/16/14 at 5:20pm
Gear mentioned in this thread:post #2432 of 32111/16/14 at 5:22pmpost #2433 of 32111/16/14 at 5:27pm
I repeat myself:
Anybody tried using Naim speaker amps for their HE-6? Some of the small older Naims look so nice and Naim is known for their snappiness and ultra fast performance - and they know their PSUs =)post #2434 of 32111/16/14 at 5:46pmQuote:Originally Posted by Anda
Relax. If I understood you correctly it would be closer to 12ohms, but nevermind.
If the following is correct, they might just be right:
OK. Lets break the cycle! Your above calculations DO show something important. A resistor in parallel with the speaker taps will force the amplifier to deliver more current out of the amplifier, for a given output voltage.
Speaker amps, by and large, are voltage devices. If you put a resistor across the speaker taps you still have the same voltage across the speaker taps. Notice how you used 24 V in all you're calculations, above? That is the voltage that will appear across and drive your headphones.
Now, if you put a very small value resistor across the speaker taps, you may cause the amplifier to go into current clipping, causing the voltage to droop and the sound to sound, well, clipped!
So, in summary: A parallel resistor adds load to the amp. Does nothing to the drive level of the headphones (excepting some frequency response issues, but I digress) until you force the amp into its current limit. No attenuation. You showed that in your example equations!post #2435 of 32111/16/14 at 5:49pmQuote:Originally Posted by moodyrn
Page 245 of the he-6 thread. It's was an early discussion about using resistors for transformer coupled tube amps. One even went as far as saying it reduced the amps output to 20%. What's so bad about that is, everyone bought in and even convince some not to even use their amps.
Well here's a link to the discussion.
Well, if I was a super moderator, I could go back in time and insert a BEWARE OF B.S. warning... The fact is, not many people read these threads from start to finish. Its hard to get some of them to go back 10 pages to discover a bit of context, much less be thorough and read the whole thread!
OK, off my soap box...post #2436 of 32111/16/14 at 5:49pmpost #2437 of 32111/16/14 at 5:53pmQuote:Originally Posted by moodyrn
Well I will chime in and say, based on Rob's calculator, it would be close to 12 ohms and not 8. So maybe his calculator is off? I don't really know. As far as the other part about the resistors absorbing 80% of the wattage, I'm not too sure about. So right now there are two hugely conflicting camps on that. But I will say that when the resistors are in place on my mac, I get the same volume I was getting without the resistors in place. So as for that part of the equation, I really don't know.
I will go back and test them on my tube amp and see if there's a difference. I'll have to check the resistors to. They are only 10w resistors so maybe the 200wpc mac was way too much for them.
There is no conflict. There are people who spout opinion based on hearsay and then there are people who know a tiny bit about electronics who regularly call BS on such nonsense...
OK, NOW I'm off my soap box... maybe....post #2438 of 32111/16/14 at 5:58pmpost #2439 of 32111/16/14 at 6:03pmpost #2440 of 32111/17/14 at 12:15ampost #2441 of 32111/17/14 at 6:43ampost #2442 of 32111/17/14 at 5:57pmIt's hard to know who to trust. There is many here that are willing to share there opinions without any real understanding of what they are suggesting. . You need to read a lot and start to find people who posts do not get trashed back on. As I not claiming to be a guru. But I have an PE eng degree and a LISC electrical contractor. So almost anything someone spouts here I either know or just google to see if there correct. And yet still I learn something here almost daily. There are some really educated people here , but it's really experience that we learn from.
Alpost #2443 of 32111/17/14 at 6:22pmSurprised today to find a seller here in Auckland for the Auralic Taurus MKII (amazing how much ground you can cover on the internet when you're stuck in one place for a couple of hours with one of your newborn twins asleep on you). Seeing if I can arrange an audition...post #2444 of 32111/17/14 at 7:08pmQuote:Originally Posted by ALRAINBOW
It's hard to know who to trust. There is many here that are willing to share there opinions without any real understanding of what they are suggesting. . You need to read a lot and start to find people who posts do not get trashed back on. As I not claiming to be a guru. But I have an PE eng degree and a LISC electrical contractor. So almost anything someone spouts here I either know or just google to see if there correct. And yet still I learn something here almost daily. There are some really educated people here , but it's really experience that we learn from.
Yes, this is key. Especially important is reading enough to figure out who are the ones who care enough to share their knowledge not just shouting opinions!post #2445 of 32111/17/14 at 7:22pm
Definitely reading A LOT is important. Not only do you get a real sense of those who really know what they're talking about on the technical level, but you also get a feel for those who hear things the way you do. I've found the latter - matching those whose subjective taste in sound presentation is similar to your own - is one of the best ways of quickly zeroing in on feedback about gear that is likely to work for you. Here in NZ this is especially important as there are very limited opportunities for auditioning anything. This is one of the nice things about the HE-6 club for me, as a slightly polarising headphone here at Head-Fi you know that other fans are likely on your wavelength.
The other thing reading a lot will do for you is to make you realise that even some of the most vaunted opinions here on HF are just that, opinions, and subject to the same biases that we all have whether we'd rather believe it or not. A review for the UE9000 brought this home for me quite powerfully - a famous reviewer assumed he was listening to Apt-X powered bluetooth because the sound was so enjoyable, whereas he was in fact listening to regular bluetooth A2DP (I pointed this out in comments to his review, suggesting he correct his review since it was misleading, however he never did which tarnished his integrity for me a little). If his review hadn't strayed into an area where my knowledge was greater than his I would simply have taken him at his word, given how highly thought of he is here.
Edited by NZtechfreak - 1/17/14 at 7:26pm
- Amps that can drive the HiFiMan HE-6 planar headphones
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