Sorry, haven’t read the whole thing, but just wanted to mention that none of these components are Hi-Fi components, and so they will have noise.
Also: how is your gainstaging? Perhaps worth looking into as you otherwise risk to amplify more noise than you “need”!
The noise is like… when you grab the tip of the cable when it’s connected to amp. Completely manageable and with the Motu pretty much vanishes if you play. Remainder noise is just picking up PC noise if I am close to PC. With 2i2… even sitting away from PC, you’d get the noise but way louder. So… Motu Hardware(also 2 tiers above) seems more resistant to interference.
Gains are mid or below mid… I usually see where it starts clipping and turn about 25% below that… if that makes sense in how I am explaining.
PS: Tested with and without power supply.
I don’t get that for monitors and audio interfaces. The very reason for the existence of monitors is, to hear the audio “as is”. The very reason of audio interfaces is to record stuff, and only “stuff”.
In my opinion, those should be noiseless (also Hi-Fi components don’t use alien technology, but much of the same/similar electronics used in audio interfaces and monitors).
It’s a different thing, if you plug in your bass, of course!
That would be hum, right? You’re sure that the issue is not your bass? Bad shielding, grounding issue?
2 basses, 2 guitars ?
I’m not saying it isn’t… just weird it’s across all… but anyhow… I can work with this noise… So far barely noticeable compared to 2i2.
I will also try something else to see if it helps… but that’s for later.
I have one bar noise on my Motu M4, but flickering (so mostly quiet).
Bass connected, notebook on power supply connected, JBL EON 710 connected.
I can’t hear ANY noise, not via the JBL or head phones…
So … noiseless is possible!
EDIT The M6 looks very cool!!!
You have no idea on the jump in quality from 2i2 to this. And these speakers… they are at 6… Motu is just below 50%… I can’t hear my heartbeat. 
(Shame I can’t sync the logi Z533 with the JBLs as outputs… house would come down)
If the Z533 sub has a lowpass filter (???), can’t you just connect on one of the audio outs on the M6?
It’s about the quality of the components that are being used to make these devices. They tend to be more mass-produced, with larger tolerances and lower… uhm, fidelity.
I am sure consoles in studios and pro gear is close to hi-fi, sometimes using individually tested and hand-picked components, as they clearly want to record at the hightest possible quality.
And, you are right of course: no fancy hi-fi equipment will make a recording noiseless, when it’s already been recorded with too much noise.
I guess I was mainly referring to Focusrite and similar gear.
You’re probably fine with the hardware gain at minimum TBH. Works for me at least.
Sorry to go on on this topic, but I have a cheap (200€) Hiby R3 Sabre with ESS Sabre chips. It sounds absolutely perfect!
The Motu M4 also uses ESS Sabre chips (albeit a slightly different model) … should one not expect that it sounds perfect too (and it does … now. After some ASIO mayhem ^^)?
I know that there are other components in an audio interface too, but it’s not rocket science!?
And again: the sole purpose of audio interfaces is to record and playback stuff faithfully. That shouldn’t be hard 
I’m not sure, but I think I read somewhere that you can configure the routing with the M6.
As far as I remember, with the M4 all outputs (or at least two pairs of them) output the same signal! So that should work also with the M6 … out of the box…
Ah, on the M4 the outputs are “mirrored” (eg, I have cinch and 6.35 instr out)
On the M6 that’s missing!? Strange…
I can switch between different monitor sets on the interface yes… but not output at the same time.
3 options from interface:
A - JBL
B - Logi
Default config - Whatever you pic on Windows.
Unless I am missing something, which is also possible!
See above! You need to drill some holes in the back of your M6 and solder some cinch interfaces to make it work
Haha… gotcha! Right on that!
Tinkered a bit… put some pads… and upon investigation… I can “merge” the 1-2 and 3-4 outputs… by connecting the Logi to the headphones output and enabling “3-4”… or buy an monitor controller. Useless IMHO.
Found a sweet spot on the Motu M6 + Reaper that allows me to play without hearing the noise… with good volume even. The only Hiss I hear is the standard speaker one.
I am happy!!
Let’s think a little different: If you think you need a subwoofer, your speakers are to small
Shouldn’t be … my JBL is dead silent. Do your JBLs have an analog amp or digital? My JBL has a digital class D, so no noise whatsoever (cause my girlfriend complained about my last analog class D amp ^^).
Let this be the end result of your quest
Yeah, I don’t. Was just testing possibilities!
If I make more changes in this room it’s too build a proper studio… but for that I need to be recording skill worthy!
Oh, the hiss is heard if I pull up volumes… while playing I’m not noticing it. I am pretty sure that if I also decrease output volume a bit on reaper that the hiss vanishes.
This was done between meetings… next days will be working with setups and alikes.
OMG… yes… I was going mental at certain points, that I even sitting at the PC and turned to the amp to play!
