Recent content by DMarasovic
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
I have ordered some TPS 7A47 and 7A33. It will consume some time to do a little pcb and cooling arrangement. Regards, Damir- DMarasovic
- Post #3,277
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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...- DMarasovic
- Post #3,275
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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- DMarasovic
- Post #3,274
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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- DMarasovic
- Post #3,272
- Forum: Computer Audio
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Burson Supreme Sound Audio V5-OPA-D,V5-OPA-S Review
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...- DMarasovic
- Post #97
- Forum: DIY (Do-It-Yourself) Discussions
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
Well done . Is the shield grounded or not? Best regards, Damir- DMarasovic
- Post #3,158
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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...- DMarasovic
- Post #3,151
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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)...- DMarasovic
- Post #3,145
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
You are free to put Muses 01 into any slot - there could be no harm. Regards- DMarasovic
- Post #3,105
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
Pricing looks affordable Quote: Thank you, of course I´m interested; mail is on the run. Best regards, Damir- DMarasovic
- Post #3,093
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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- DMarasovic
- Post #3,091
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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...- DMarasovic
- Post #3,089
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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...- DMarasovic
- Post #3,078
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
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.- DMarasovic
- Post #2,982
- Forum: Computer Audio
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Asus Essence One Headphone Amp/DAC (CeBIT 2011)
Look at my settings: During playback via Toslink bitrate LED follows playing file bitrate, but Bit Perfect LED is not engaged.- DMarasovic
- Post #2,974
- Forum: Computer Audio