#MOTU 828 MK1 AUDIO INTERFACE INSTALL#

I've encountered a couple glitches here and there, such as MIDI not being recognized until a system restart for unknown reasons. If the unit amir tested was shipped with the outputs at -20db, it may have affected the s/n ratio measurement. Also, a factory reset put them at 0db, so I'm not sure why my unit shipped with this setting (maybe an older firmware version). It's easy enough to set all the outputs to 0db however. When using line level outboard gear, this is problematic. The only other thing I noticed which was odd, is that when I received my unit all the outputs were set at something like -20db. I also found that at least on my unit output channels 1-6 seem to perform a bit better than channels 7-10. Here is 4 V output with -20 dB pad and +6 dB mic gain, output channel 3 to microphone input 2 (TRS to XLR). Here is 2 V output with the -20 dB pad and +12 dB mic gain, output channel 3 to microphone input 2 (TRS to XLR). Once I installed the MOTU software I was able to adjust this up to 0 dB.ДЇrom a measurement perspective at full output of 8.6V I found that using the back panel line inputs was best, here is a loop back at full output voltage from output channel 3 to line input channel 4.ДЇor lower voltages I found that using the front panel microphone inputs was best, especially if the -20 dB pad was used with mic gain.

#MOTU 828 MK1 AUDIO INTERFACE INSTALL#

I am a mac user and I first tried to use the interface without installing any additional software, in this configuration all outputs are set to -20 dB but you have no indication of this until you install the MOTU software! The level indicators will show full output but if you measure the output voltage you are only getting 0.86 V which is 10X less than the full output voltage of 8.6 V. Overall pretty pleased with it despite a few quirks. Ended up impulse buying one of these as I figured even if it was only a small improvement over the MOTU M4 in terms of measurements the 10 channels of output + master volume control + SPDIF/TOSLINK inputs were enough to justify the purchase.

Motu 828 mk1 audio interface