I have ordered some TPS 7A47 and 7A33. It will consume some time to do a little pcb and cooling arrangement.   Regards, Damir

Finally, Bursons are in the closed case of Essence one. To make this, the low pass filter (LPF) DIP8 sockets must be desoldered and removed from PCB. This is delicate operation that can damage the unit and should be done by qualified person. The lower front side (2mm) of the right Burson SS...

Hi Raul, I have to dismantle E1 for desoldering DIP8 socket. This will be the opportunity to try your mods and make measurings on PSU. Will be posting results here when done.   Best regards, Damir

I am glad that more and more people have a chance to use Burson V5's as I do now.   Here are my impressions how V5's upgraded my E1 after years of searching and swapping :   http://tinyurl.com/zfj9zr3   Best regards, Damir

I have received a pair of dual Burson Supreme Sound V5-OPA-D op amps last week. Packing was firm and valuable items were well protected during long flight. There was just enough time for burn-in at about hundred hours before serious examination. After reading many positive opinions about...

Well done . Is the shield grounded or not?   Best regards, Damir

Hi Raul, My Beyerdynamic DT770 PRO are among several HP's that are references for low frequency reproduction, down to infrasonic. Posted links show that there are no peaks above -100 db, and that is unhearable at low frequencies. Your situation must be much worse than that. Here are two of my...

My E1 is also dead silent. I have swapped lots of IC's and it was never able to hear or measure hum. Hum can be produced by oscillating amp, so check to use recommended one and assure that IC sits in position with good pin contact to socket. When IC is oscillating, it produces high (even radio)...

You are free to put Muses 01 into any slot - there could be no harm. Regards

Pricing looks affordable Quote: Thank you, of course I´m interested; mail is on the run.   Best regards, Damir

Quote: I use 4xOPA2132PA (LPF)+ 2xLM4562(Buffer) at the moment. Even cleaner sound is with 4xLT1028 + 2xOPA627AU but produce more heat. I am also from Croatia (Zagreb). Where did you order Muses IC´s from ? Best regards! Damir

Gipsy, I am sceptical about that operation because those jumpers are probably in signal path or negative reaction path of IC. It's wires should be short and laid as designed. It would be possible to make what you want by soldering miniature relays as close as possible to jumper pins and operate...

It could be interference from outer electro-magnetic field. Try to move electrical products that are near (bluetooth and wireless units and mobile phone etc.), as well as E-One itself  and observe changes. Open E-One, push opamps to sit well in sockets, check internal connections. Try to replace...

If everything is soldered as should be, there is no barrier to use it. I use 2x2 OPA627AU as DAC filter after 4x2 LT 1028 in I/V with excellent sonic result.

Look at my settings:     During playback via Toslink bitrate LED follows playing file bitrate, but Bit Perfect LED is not engaged.

The same as you.

In my case no, but try to find and set sw and hw settings at the source. If you write what is your source, maybe somebody will know the answer.

There is no sound quality difference between USB and Toslink input from Asus N73S laptop.

Play monaural recording through speakers, remember the stage position, then swap R<>L cable plugs at E1 outputs. If E1 is not in balance, stage position should change (to the right?). If there is not change, E1 is OK. You can also try to wear headphones R to left ear, L to right ear. The sound...

They are hot by default. Try to put 2132 into I/V, leave 49720HA at buffer and 4562 at factory default positions (also dip8 49720 for headphone buffer). It gives more balanced sound, clean but not aggressive.

All inputs can be connected at the same time, but only one is transfered to dac. See the marked knob on the picture. By toggling it source is changed COAX -> TOSLINK -> USB -> COAX .......

It is possible to use one input at the same time.

Quote: It is OPA2132PA ordered directly from TI.

As the Muses 01 opams are so expensive and not widely avaliable, I have used some more time to roll (and rock :)  ). Very good combination was OPA 2132P at I/V and OPA 2107 at LPF. Clear, strong and dynamic sound, just a little V shaped with elevated low and high end, which means not perfect for...

Quote: DIP-8 and PDIP-8 is the same housing. P means plastic. Most cases are made of plastic, many of ceramic. PE4 is OK for you.