- #Motu 828 mkii firmware how to
- #Motu 828 mkii firmware install
- #Motu 828 mkii firmware driver
- #Motu 828 mkii firmware full
- #Motu 828 mkii firmware pro
They are unlikely to do better than spec, which for the CS4223 is:ĭynamic range 105 dB(A), THD+N -97 dB (both D/A and A/D), A/D antialias filter ripple +/-0.01 dB, filter ultimate -80 dB, with "no" aliasing below 0.4535fs (which works out to just about exactly 20 kHz at 44.1 kHz).įor the AK4321 it's: Dynamic range 100 dB(A), THD+N -90 dB.ĭecent midrange tech 20 years ago, a bit long in the tooth by modern standards, and it sounds like there were some implementation issues that would degrade measured performance below chip datasheet level. Crystal CS4223 24/48 audio codecs plus a lone AKM AK4321 20/96 DAC (headphone out or something?). I won't be surprised if it's not exactly AES48 compliant yet either).įrom this it looks like there are 4 pcs. If anyone has any questions about the technical aspects of using the unit, let me know.Ĭlick to expand.People have been doing some investigation of the innards if you know what to look for, including some tweaks (though instead of banishing the mains transformer from the device, I would rather have investigated what it's coupling into, either it's electrostatic and some shielding would be required or it's magnetic and there's a ground loop going on in the signal path or grounding scheme somewhere.
#Motu 828 mkii firmware driver
There was a lot of great music recorded with one of those (particularly electronic music where super quiet preamps aren't necessary).Īpparently there are some intricacies in the driver software that some people are missing from the 828mk3, but I would much rather my driver software be a simple utility than another piece of complicated software to wrangle alongside the DAW. I would love to see how the 828mk1 measures. I believe this was the first firewire interface ever, with older interfaces requiring PCI cards. The stability of the 828 line can be seen plainly as with the right adapters (in my case thunderbolt 2 -> firewire 800 -> firewire 400) the very first 828 mk1 from 2001 can still be used on most modern systems.
#Motu 828 mkii firmware pro
People who have been in pro audio for a bit know that the 828 line has been a strong contender for a long time now. Also, for hifi users, ultra-low buffer size isn't really necessary if you're just listening to music with the thing (and I believe buffer size even syncs to video playback, but that is worth investigating).
#Motu 828 mkii firmware how to
Also, I get stuttering at ultra low buffer sizes for minimum latency, but these are fairly minor, and MOTU are good about firmware updates (I need to figure out how to replicate the midi issue so I can submit a formal bug report.). 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).
#Motu 828 mkii firmware full
Once I installed the MOTU software I was able to adjust this up to 0 dB.įrom 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.įor 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 mkii firmware 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.
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