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Audinst HUD MiNi, opamp rolling with LME 49720HA
Living in Seoul, South Korea really give me a lot of choice and easiness to get opamp, before I replaced the original LME49860 with LME49720HA I did search on the web and seem like people love the thin can aluminium of the LME49720HA, so I just bought it from the online web in Seoul for around $10.
The sound is good, the lower sub-bass is punchy and suit me well (I am bit of a basshead).
I think around 6 months of my purchased, I got some crazy idea to increase the power wattage to expect the bass sound more deeper and louder. I use external power instead of the standard USB 5V max 500ma, I use a 1Ma 7.5V power brick and create some USB extension cable to split the data and the power line of the USB, at first this DAC can power-up, the LED is on and the windows can detect it normally, BUT I could not hear any sound from the output and also the LED should be blinking during audio playback but it does not blink, I try to unplug and plug it back but nothing change, then I take out the external power from the loop and just connect it directly to the notebook but unfortunately this DAC is giving the same behavior with only showing LED ON but nothing happen, so I thought this DAC is death because over voltage (7.5V vs 5V), then I send it back to the vendor and I received a fixed DAC (not new) and I never try to destroy it again .. lol :-P
Falling in love with the world
Write : 2013-07-08 14:49:03