Support Head-Fi.org by
starting all of your
Amazon.com shopping by
clicking here.
____________________________________________________________________
Today's Featured Head-Fi Blog: Jude's Blog
____________________________________________________________________
Please help
support Head-Fi by becoming a Contributing Member
CLICK
HERE -- Contributing Members, thank you
for your generous support! --
Have you taken any internal temperature measurements? I've got a suspicion that you've got one of the cooler running Dynahi's ever .
I don't have a thermocouple to measure the devices directly, but I did put a thermometer into each of the amp and PSU cases with all covers closed (note that there are no ventilation holes or slots in my cases, I rely on the big external heatsinks to do all the cooling). The amp case internal air temp stabilized to 107F (41.7C) and the PSU case was 125F (51.7C). The PSU was warmer because the power transformer produces a fair amount of heat too.
Touching the LM338s, OPA541s, and output power transistors show that they are not likely to be in any danger of overheating. They feel hot but never to the point of causing discomfort. My M³'s MOSFETs feel about as hot to the touch. The heatsink fins feel warm, not hot. The vertical fin arrangement really works. You can actually feel warm air convecting upwards above them .
Finally some pics of my PIMETA and TEPS. The pimeta is cased in a temporary cigar box and will in a near future be recased inside a hammond case with a USB DAC, batery(around 18V using AAA's) and charging circuit(still to be built). The TEPS is just "cased " in a sort of enclosure I will go inside a custom made(by me) wood enclosure. My soon to be build MIllett will also get a custom wood enclosure. I will post pics eventually
__________________
CEO of Head-fi Portugal! Top Portuguese poster!
"If Rimes were Valiums I'd be confortably numb"- Bradley Nowell
Team Headfive, Team AKG701, Team DIY, Team Gin Drinkers
__________________ [ S O U R C E ] Lenovo ThinkPad T61p | Creative SBLive! w. kX Project Mod| iPod Colour 60GB [ W I R I N G ] TARA Labs Prism RCA | Monster XP Speaker | DIY iPod-RCA | DIY Mini-Mini | DIY iPod-Mini [ A M P L I F I C A T I O N ] Yamaha R-95 Stereo Receiver | Cmoy w. TLE2426 Railsplitter [ H E A D P H O N E S ] Sennheiser HD-477 | JVC HA-D990 | Westone UM1 [ L O U D S P E A K E R S ] Energy C-300 Floorstanders | KLH ASW12-120 12" Subwoofer [ W A N T S ] Grado SR-325i | Mini3 Parts
I wrote about my newly-built Dynahi in this post, where I mentioned that I wasn't 100% happy with the brushed aluminum volume knob. I thought that it stood out too much and clashed with the all-black theme.
Anyway, I have made a modification to the knob. The center flat portion is now matte black (same finish as the front panel), but I retained the brushed brightwork at the bevel and finger-grab areas of the knob. I like this much better... it provides just enough accent to complement the headphone jacks, but blends better with the rest of the case.
I wrote about my newly-built Dynahi in this post, where I mentioned that I wasn't 100% happy with the brushed aluminum volume knob. I thought that it stood out too much and clashed with the all-black theme.
Anyway, I have made a modification to the knob. The center flat portion is now matte black (same finish as the front panel), but I retained the brushed brightwork at the bevel and finger-grab areas of the knob. I like this much better... it provides just enough accent to complement the headphone jacks, but blends better with the rest of the case.
When I saw your Dynahi I couldn't imagine anyone topping your casework. Well someone did.......you
.
it looks great.
Linear Mode
