ang728

bought them form china https://goo.gl/LKTtXI

Epic Win

I'm not applying too much thermal grease on ceramic thermal pads and angle brackets but sufficient to have good thermal contacts My approach is applying thermal grease at about pea size then screw all the compoments together,let the pressure spread out the grease.

faulty transistors may cause that happen , I will try replace KSPs first

been built several builds,they all working fine

man..same thoughts here, but I failed squeezing GRLV in it,lol

latter for sure

If your transformer voltage are rated at load ,you can possibly go 12VAC to cover 12V and 13.5V, 15VAC to cover 15VDC .

http://imgur.com/xKQhzZZ Take from Pars's pic,Change those 1.5K resistor,top and bottom ones are R8,R9 for V+: (R8 + R7) / R7 x 10 (reference voltage of D5 - LT1021-10) for V-: (R9 + R10) / R10 x 10 (reference voltage of D7 - LT1021-10) For 15V you can go 750R,1.5K Set others you may need to change different voltage version of LT1021 don't need to change caps and OPAs for voltages you mentioned ,but you may need to change zenzer value to voltage/2

Nice!! gald to see you tackle all the problems

super cheap ! I saw breeze audio's box in the background.Did the chasis and engraving make by breeze audio?

That engraving ! Well done~

Thanks Pars ! 4.7uf WIMAs are used for bypass cap,not a problem to go lower values,I have some board use 2.2uF,not a problem. OPA134s can go as low as 22pf but I'm not sure it will maintain stable when OPA-rolling.I will stick to 47pf

same,only difference between is being made by FSC or ON Semi IIRC

Kinda rebuild&upgrade mainly switched voltage regulators from Sigma 22 to GRLV, Owner siad he can totally feel the improvment.

You will need to change tant caps voltage rating above 25v

Tried LME49710 on +-15,+- 24,+-30V before, works fine

A friend of mine slightly modified GRLV, adding multiple output terminal blocks, changing bridge rectifier type and widen the capacitor space,all the AMB like configuration and UCC bypass cap placing.Others are the same as original GRLV. We run a small batch, tested Okay but silkscreen is bit off and forgot to output compoment values ,but not big deal. may release some surplus boards

mind to post pics of your own boards? no difference at audio frequencies,just for mental healthiness ,lol

As far as I Know... current versions: ssdynahibalsmt.zip : SMD PZTA transistors,offboard heatsinks ssdynahibalsmth.zip : SMD PZTA transistors,onboard heatsinks ssdynahibalsmthm.zip : SMD PZTA transistors,onboard heatsinks, mitred trace corners ssdynahibalsmtm.zip : SMD PZTA transistors,offboard heatsink, mitred trace corners older Ver. dynahibal8f.zip : MPSW transistors,onboard heatsinks dynahibal9.zip : MPSW transistors,offboard heatsinks My previous build is dynahibal9 and I also have a v8 build working

Post it again for reminder for V+: (R8 + R7) / R7 x 10 (reference voltage of D5 - LT1021-10) for V-: (R9 + R10) / R10 x 10 (reference voltage of D7 - LT1021-10) congo5's way is also right assuming that you have fixed R7,R10 's value.

I ordered from a Taobao seller ,but I'm not sure whether they have any ebay business or reseller Thanks ! Was trying to use mounting PCB but I forgot to restock (faceplam).Will going to tie them to look more tidy

Finished a build for my friend,still crappy at wiring job..... This one's gain is set at 16X under balanced mode,powered with 2xsimga 22 PSU,will post more photos after tuning knob arrived Sound amazing like any other KG design ,EPIC ! my own onboard heatsink /w KG Goldrefrence PSUs version also coming update with feet installed

YES,it's 120mA,you should have 1.2V reading across 10R but 100mA-110mA sounds best IMO

EPIC！