The problem is that it doesn't powercycle - holding the power button does nothing. And it doesn't get recognised at all, on other devices too.

@KMann unfortunately, I've bricked my Mobius too on the firmware upgrade. Followed all the instructions, laid it flat on the table, and just as the process of update started, my PC BSOD'ed. Naturally, Mobius do not get recognised now, and only the red led light up when connecting to the PC. It...

Hey guys, for those of you, who wondered what's inside - I've just disassembled mine, here are the guts: It uses Conexant's CX20833 for DSP and CX20745 as DAC/AMP

  Quote: It is actually this one -   http://pinouts.ru/CellularPhones-A-N/lg_common_24p.shtml   You can find some on ebay: http://www.ebay.com/itm/Repair-Parts-Data-Charging-Port-Connector-for-LG-KE970-/321146802524?hash=item4ac5d7515c...

Hi guys,   here are my graphs of LCD-3(c) and LCD-3(f) after driver failure repair (great service by Audeze, as always):   C   F   As I'm not good at describing the sound changes - I'd just agree with previous posters about them :)

Hi tomb,   thank you for the answer.   What if there is no volume pot? Could we say that input impedance will be equal to resistor which is connected to ground at the input (grid leak resistor?, which is 1M in EHHA), if such resistor exists?

Hi guys,   does anyone know what is the input impedance of EHHA rev A?   I've tried searching this thread, but found nothing.   Thanks, Fedor

Funch, input is from a dual-mono TPA Buffalo II and IVY IV

Thanks for the kind words guys :)   @KimLaroux,  I had to mount L-brackets to the back panel, and back feet are mounted to those brackets, so that trafos are not over-balancing the whole thing.    @kchapdaily, yes, it does sound amazing. 

Hi all, here's my balanced Bijou (not really great casework, but considerably better than my previous attempts):              

Well, transformer is fine then. Did you measure 6.6V with or without the load (i.e. with PS connected)?   As for measuring mosfets for shorts: make sure that capacitors on PS boards are fully discharged (wait 5 minutes after disconnecting power, or check PS output voltage with your...

Yes, it seems that those additional poles are just for mechanical stability ( panasonic ce tha capacitor datasheet )

Sorry for the late reply.  Let's try to troubleshoot a little:  1. Did you try to load PS with 100K 1W resistor prior to connecting amp boards? 2. What trafo are you using? Are the ratings correct? 3. Check mosfet legs for shorts, if there's any, they have to be replaced. 4. Pictures...

Yes, mosfets are tightened with a bolt and a nut, but don't forget insulating pad and a plastic washer for bolt (like these). As for the caps - I'd cut out excess legs, insulate the pads, and use some 22 awg cable to connect to the board. And also insulate the connections between caps legs, wire...

That is correct, C2 orientation doesn't matter.

preproman, you can use this wonderful tool for searching - http://headfi.qix.it/, this thread is at the bottom. 

Oberst, I've always wanted to build an all tube amp, and I'm sure I won't regret building the Bijou, I'll just have to do a little headphone rolling :)

Hi Funch, thanks for reply. Yes, I know now that Senns are the best match for the Bijou, but I have ordered the kit and trafos just after reading first few pages of this thread, not knowing about which HP's is better matched. And now it's too late to go for another build as trafos and kit...

Thanks for sharing Walangalam, that's pretty bad indeed. I'll need to remember to unplug the phones then.

Hi guys, don't know if this thread is dead or not, but I'll give it a try.   I've read through all the pages, and although I've found answers to most of my questions, I still have some:   1. Is it possible to use Bijou without volume pot? (I'm going to attenuate digitally via Buffalo...

Hi, I've circled it. It is actually not resistor, just a solder bridge.  

Hi dannie01,   Did your friend removed the bridge that is marked as "USB-PS" on the board? Because when it removed the board will use 9V power.   Thanks

Quote: Hi, you are talking about this device - http://www.circuitsathome.com/mcu/usb/usb-isolator ? If so, have you been able to use it with 96KHz material? Because this USB Isolator chip can work only Full Speed USB (12Mbps), I'm worried that it may be too low for 96KHz.   Thanks.