That is the plan but I'll probably run it for a couple weeks bare while I sort out the case.
I figured 45C was ok and I appreciate your advise on it - as usual I'm learning, I was suprised at how different the IR emissivity is for black anodized vs non-anodized aluminum.
Last edited:
Yes that is the plan, no problem desoldering - I think that is the one thing I'm most accustom to since I'm always making mistakes.
I have an IR thermometer with adjustable emissivity and I never quite found well repeatable setting and distance formulas for various things. Especially for shiny ones. If its critical I still use the Fluke's thermocouple probe in the end to make sure.
Sounds good - I'd be curious to see what you find.
I read through all the Mezmerize, Hypnotize and DCB1 threads and I think I'm slowly getting a little bit of a grasp of the shunt circuit
- ingenious.
10~20cm, my IR gun has two laser LEDs to show the diameter of the sensor circle. It's really finicky and I wouldn't trust it without a direct thermocouple comparison.
I am interesting to build a Mezmerize B1 Buffer. I have a relay based attenuator of 10K. It is lower than suggested 20K. Can I use it? What could be the disadvantage to use it? The output impedance of my DAC is 50 ohms, and the input impedance of my power amp is 10K ohms (only balance input which is equipped on the active studio monitor)
Last edited:
Technically acceptable. Maybe expect little more brilliant sound than DCB1's usual tone if with 10K. Because DCB1 has very wide bandwidth and the 10K lets it more free than with the usual 20K. But details of tone can also be property of the attenuator quality. More so than the bandwidth impact discussion.
The DCB1's shunt PSU has big reserve for such small consumption additions as it is usually set with a 150mA-200mA current limit. Just take the usual shorter possible rail cable runs and local decoupling precautions to and at the clients. Prefer 10uF tantalum local decoupling if ever needed. They are easier than film caps on how remotely seen by this reg. You can check rail stability against oscillation with a CRO or DSO when AC coupled to its probe. Vertical 10mV and sweep horizontally from 1mS to fastest.