I have found this in the older posts :   ------------------------------------------------------------------------------------------------------------------------------------------- Originally Posted by iFi audio    Beta firmware - Testing Solutions to Spotify/Tidal streaming on Android and...

Hi   I have a power supply Teady Pardo, it's work great. I have tested batteries, it's great too but it's not easy to use. My seller recommend the POWERPAK II   I have a M2TECH EVO, and it's better (with batteries NIMH batteries). My seller recommend the SOTM dX-USB HD.   Curiously...

Hi,     I would like to use a micro iDSD with a SAMSUNG S4 and QOBUZ, can you tell me if it's compatible ? I it's not compatible I could use a LG G3.     Thanks you   Proton

  I don't know if the LM4562 have BJT inputs, I have read it's a bipolar. When I have use it instead a JFET, the source resitance was hight, (3.3M), and I had a problem of cc.   I have change the resistance, the cc was lower, but I never heard any difference. I have read that bipolar have...

I prefer the sound of the LT1364 to the lm4562, the sound is one of the more neutral for me. Its fast sound, with a lot of détails, but it's not my prefered, some new chips are better, with lower distorton. His spec. are good, It's  very fast amp (high slew-rate), it have low distortion. It...

Bipolar Junction Transistors can have lower noise than JFETs."   Depends of the resistance before the opa, depends of the schema, I had had a bad experience with the remplacment of a JFET with a Bipolar. The noise was not realy a probleme, but the continus curent was...I have changed the...

Have you chek if the schema is compatible with the LME4710, the 627 is a jfet and the LME4710 is a bipolar ?   You can have noise and continus courant if you put a bipolar instead a jfet... When I buy, chips, I take several ships. The LME49860 have been prefered to the LME49710 on several...

Hi   You should try others chips too, for the price ...

opa2111 is very good for the bass lme49710 is very good for the highs opa2111 + lme47910 is a good association, but you can find better opa2134 is veiled on my set-up ada797 can oscillate but can be very good for buffers or I/V (Weiss DAC etc..) neutral / hight definition / very good ss / but...

Yes, It's it have oscillate in my set-up (strong noises), you have to install a 1.2k resistance between the pin 6 and 2 (see the data sheet p10) and even with that, I suspect something wrong (very hight frequencies ?). I have no oscilloscope, and I have stopped to use it. The sound is good...

hi Burson are coloured, characteristics are bad (distortion ...), some guy like this, but not me. Definition is bad, it's veiled, all the instruments have the same sound, after a long time it's boring. You can try it, it's a lot of money but you can like it.

Hi everyone I read this forum for a long time, I have never post anything because my english is so poor... Thank you for all the informations. I have use the 4562 for a long time (it is the same as the lme49720). the metal can is better, I confirm. The details are very good, but it lack of...