[Speedskater]

It comes down to 'all accurate well designed amplifiers will sound the same when played under reasonable conditions. (there is a long set of reasonable conditions).
But many audiophile amplifiers (can't call them hi-fi) are designed with euphonic colorations. These amps will sound different than accurate amps under some conditions.

 

[bigshot]

Nothing new.

I have one of those four channel Akai R2R decks. They're great. They have glass heads, so chances are that they will always play great without needing new heads.

I take it folks are bantering with one of the blatherers in my ignore list. It's interesting to see the energy wasted on answering a troll without seeing the troll itself. It's like looking at radiation or something.

 

[gregorio]

As he is, he displays his ignorance of our language. Testimony

If you are going to contradict the facts/science and make an absolute claim, neither your formal written or spoken statement, the "appearance of something" nor a public recounting of your religious experience is acceptable here! This is the Sound SCIENCE forum, not a court of law, nor a platform for religious experiences! Again, how many times do you need to be told?

G

 

[skwoodwiva]

I'd love to read that study if you can find it.

How old are you?

I'm asking because I would expect that only a teenager ear would be in the position of discerning between the extremely high frequencies, which is the reason why MP3 encoders sucha as LAME are modeled after some extremely sensitive 15 years old guy.

The study said woman out tested men I absolute range, the acuity, sited, was midrange to high frequency, leaf russeling in the midst of noise.

Have you done any true ABX tests yourself

yes but only informally and only with music I knew & loved.
Edit, there can be no valid ABX results, if you are not utterly familiar with the music you are evaluating.

 

[ev13wt]

I sure ain't reporting nobody that is trying to help people understand stuff.

This is the science forum. Just get with reality, accept the fact that audio is very well understood (in the 2 channel reproduction realm).
There is nothing left to do but add "flavor". For this "flavor" which speaks not only to your ears, but mostly to your other senses and to your brain.


You can really compare it to the watch world. For instance a Breitling from 2010. Inside lives a standard ETA engine, with a pretty branded rotor. Thats it. The cost of the mechanical parts adds up to a TOTAL of 80 to 150 USD, depending on the ETA "grade". The other 6000 USD are bling. Its a steel case, nothing expensive about that. A piece of glas or two... If you place that ETA into a cheap china case, you will have the performance of a Breitling without the cost.

A DAC. A DAC these days is the ETA. After about 50 USD, you are done - except if you add fluff and pretty and magic. It won't get better if you throw more money at it. Maybe "different".

(disregard the fact that mechanical, analog watches are about as accurate as Vinyl is...)



Music reproduction is never perfect. It is impossible. Have fun with your moby dick bro!

 

[ev13wt]

https://www.chrono24.com/christiaan...plication-automatic-ungetragen--id7316228.htm
70000 EURO / USD

https://www.ebay.com/itm/Genuine-ET...594477?hash=item3f929b5aad:g:fSMAAOSwbtVZQHD7
130 USD

Now, I will agree that the ETA in the 70K watch has been modified. It has been made prettier.

This Eta is also found in THE IWC PILOT MK XVIII AND THE OMEGA SEAMASTER 2254

"It can be a little hard to swallow when a £5,000 watch is apparently carrying the same movement as your £350 beater. But explaining why is a story for another day."

http://wornandwound.com/caliber-spec-eta-2824-automatic-people/

 

[castleofargh]

try to stay back on topic and even if it's so damn hard sometimes, fight claims not people.

 

[skwoodwiva]

Well, these are reasonably priced, minimal but decidedly nonstandard audio products. They are part of the 'hi fi scene', and they aren't made of opamps and leds. Are they 'something wrong' with the hi fi scene, or would they be welcome in your system, if minimal is what you were wanting? I made some similar to the axioms, but with carbon pots and allen bradley resistors and they sound great!

I have some suitable transformers for the other one, 1:5 step up though, so I'm curious.

I am using theses 1:2

https://www.head-fi.org/threads/a-krk-woody-tower-fun.876953/#post-14177306

 

[skwoodwiva]

So what do you guys think about something like this? The transformer has a 1:8 step up, so there's gain. The resistor for the bass output let's just ignore for now.

http://www.electra-print.com/pva.php

Or this? This is a shunt style volume control with either holco or precision caddock fixed resistors, depending how it's made it eats about 6db at any setting.

https://luminousaudio.com/products/axiom-ii-passive-preamp-walker-mod

Exactly what we need for lo imp output devices!
Phones!
Lol
http://www.gammaelectronics.xyz/audiox_01-2005_trans-preamp.html

 

[tansand]

Except it goes the other way... That's the original article from the electra print guy, thanks for posting it!

 

[skwoodwiva]

Except it goes the other way... That's the original article from the electra print guy, thanks for posting it!

Am I right? About lo ohms input be its best application?
I know swat. Just learning as you posted. Using as a balanced converter SE phone to my KRKs. ....
I have 700 ohms out & 900 in so seems there will be some gain? Less coils is gain side?

 

[skwoodwiva]

Except it goes the other way... That's the original article from the electra print guy, thanks for posting it!

!

 

[skwoodwiva]

Except it goes the other way... That's the original article from the electra print guy, thanks for posting it!

!

 

[tansand]

I'm not sure what you're trying to do. Convert unbalanced to balanced? You don't have to use the transformers for that, you can, but I wouldn't.. I would skip the screen entirely and see how a twisted pair connected to pins 2 and 3 of the xlr, or tip and sleeve of 1/4 inch works. Connecting the negative of the output device to the ground of the input device can cause problems. Please note the edit below

Fig 15 above shows a typical unbalanced to balanced cable. The important point is that the Cold line is connected to ground at the remote (phono) end, and not at the XLR. Thus the balanced inputs at Pins 2 and 3 see only the voltage at the phono plug itself, and any spurious voltages that may exist on the ground line are ignored.

The XLR body, if metal, will have a separate solder tag for making connections to it. It also makes an electrical connection to its mating connector; if this is chassis-mounting then it will usually be grounded so the XLR body tag need not be used. In fact, it is important not to join the body to either ground or Cold as this creates an unwanted connection between audio ground and chassis ground, which may affect system performance.

http://www.douglas-self.com/ampins/balanced/balanced.htm

https://www.mediacollege.com/audio/connection/xlr-jack-stereo.html

EDIT:I'm concerned you'll fry your phone though. I don't think I'm qualified to advise you. Note this!

Also, newer equipment with active balanced input/output, particularly some brands of sound cards will not like to have the Lo side grounded. In a few instances, this can actually damage the equipment.

http://www.engineeringradio.us/blog/2011/03/unbalanced-to-balanced-audio/

 

[old tech]

yes but only informally and only with music I knew & loved.
Edit, there can be no valid ABX results, if you are not utterly familiar with the music you are evaluating.

I would have thought an ABX result would be more valid with music that you are utterly familiar with as you would know exactly what nuances to listen for.