OPA2134 has a laid back sound, quite warm - everybody on the internet can confirm this.
OMG..
OPA2134 has a laid back sound, quite warm - everybody on the internet can confirm this.
I have many issues with the double blind testing, the problem is that humans have a very short memory of sound.In Science, those who claim something have to deliver the proof of it.
In this case double blind test
As far as I have read... such double blind tests have never been done and reported on (atleast in the world of audio) where the test subjects are to familiarize themselves with the audio tracks, and then specific parts are played back to them back to back using different gear and they have to decide which sounds better or if they sound the same...
NE5532 is similar with 2134 in sound. I think they were designed in the same period and were competitors.
Anything wet should do the trick .Which type of beer would you recommend?
Thanks for the input. I contacted the seller and he's willing to take it back. I just haven;t sent it back yet. He states there was nothing wrong with it. Topping won't deal with anyone but the original owner.
I tried lowering the volume from the laptop out to the DAC, but the speakers still distort. Oddly, they don't distort as bad o 24/44.1 material, though I still hear it.
No bright highs or too much crisp ditail. I found it less agressive or frontal. Medium range are more open and detailed and found more pleasent sound stage.
Actually I have measured burson v6 vivid. It's really good for discrete. It can go 0.0001% THD. And has very low noise. I think the level of performance is similar to opa827. Distortion can be a bit higher than opa827 or modern opamps. But by no means it's bad. It's actually very competent in this level of performance.An accidental low-pass filter? Or a boatload of added harmonic distortion?
...Or all in your head (no offence)?
Subjective description: ...
Actually I have measured burson v6 vivid. It's really good for discrete. It can go 0.0001% THD. And has very low noise. I think the level of performance is similar to opa827. Distortion can be a bit higher than opa827 or modern opamps. But by no means it's bad. It's actually very competent in this level of performance.
Subjective description: opa827 can be more bassy than v6 but v6 as clean and smooth. 5534 is more grainy and crisp(can be good or bad). IDK if it's jfet input or bjt input but it sounds like a very good bjt input opamp to me. And a very low current noise one. Not necessarily worth the price. But it's definitely not bad.
They measure the same. Not even in the higher frequency range after 35khz. One thing i encountered is that there is an amp called lisa3 and i also measured it. The frequency response is pure flat but the bass is much more prominent. I still can't explain why. Maybe i could find something in low frequency square wave or step response.More bassy, less grainy.. I can imagine how the frequency curve would look for more "bassy" sound but you got me puzzled where in measurement specs to put "grainy and crisp".
The frequency response is pure flat but the bass is much more prominent. I still can't explain why. Maybe i could find something in low frequency square wave or step response.
No. I could blind test it. It's really something. Especially when I changed all the opamps into opa827 the bass became just more prominent and overall warmer and smoother. I didn't have any to expect. I have tested many opamps lt1128 opa1611 opa211 4556 and many more. I did a project making an headphone amp. And in the process I spent over 1000 aud on opamps for testing. If i were imaging all these i must be stupid. Of course measurement is another part. They do measure different in some ways. But not in frequency response.If they measure the same up to 35kHz I suggest you put more effort into proving you are not imaging this instead of measuring step response.
No. I could blind test it. It's really something.
I did some. But not all of them.You could or you did?
No. I could blind test it. It's really something. Especially when I changed all the opamps into opa827 the bass became just more prominent and overall warmer and smoother. I didn't have any to expect. I have tested many opamps lt1128 opa1611 opa211 4556 and many more. I did a project making an headphone amp. And in the process I spent over 1000 aud on opamps for testing. If i were imaging all these i must be stupid. Of course measurement is another part. They do measure different in some ways. But not in frequency response.
And the bass of Lisa3 sounds like 3db more and it's no way for anyone to not able to blind test it. Just like you listen to a 3db more bassy earphone. It does have bass control knob but i bypassed it by modifying the circuit and measured.