Ham N Egz
Save your money
 
wait 6 months till Behringer clones it and it sells for 1/2 the price

this is already "cloned" and half price compared to the same spec'ed units from RME and MOTU. so there must be a trade off somewhere ...
 
yet, behringer can always produce the units even cheaper ...

Rimshot
8 buffers w/1 ms latency possible, just to name a couple reasons.
 
https://forums.presonus.com/viewtopic.php?f=124&t=25178
 

can't access this link

They stopped their forums as they are not even linked on their site any longer. The communication from them about the decision indicated the forums would still be available however via link only in addition their resources to maintain would minimal.

Presonus makes good stable interfaces. Probably the one main nit up until now has been they slightly lag behind some  of the others in latency. Depending on your application this might not matter. Most people  who plan to purchase a top of the line prosumer interface want low latency even if they don't necessarily need it.
 
This looks interesting. I'm going to watch this one closely. The obvious advantage to SO users is the interface will be immediately identified and easy to route in SO. Probably not difficult in Sonar either. I never had an issue with my older Presonus interface in Sonar.
 
Can you get an RME with this much i/o for this price? This might not be a factor for you. In all fairness, if the factory support, reliability and specs are all close Presonus might come out on top for me. I'm not a Presonus rep. I do think Presonus interfaces sometimes get a bad wrap when comparisons are made. Similar to the way some people relentlessly pound away at Sonar on other forums. Most of those people stopped at X-3 or 8.5...but heck no, we ain't ever trying Sonar again :)
 

Starise
Presonus makes good stable interfaces.... 
Can you get an RME with this much i/o for this price? This might not be a factor for you. In all fairness, if the factory support, reliability and specs are all close Presonus might come out on top for me.

I think you'll find that there are many users who don't share your opinion of Presonus' hardware.  
 
As far as the competition, both Focusrite's Clarett 8Pre (26x28 I/O) and MOTU's 828x (28x30 I/O) are at $1K or lower, so no big "breakthrough" there.
 
Regarding support, reliability and specs -- again, I haven't heard any "nightmare stories" about Focusrite and MOTU, but the same can't be said of Presonus.

Starise
Can you get an RME with this much i/o for this price? 

Yes, RME's are pricier, but the amount of problems that have come with the last couple of generations of Presonus' interfaces makes the additional outlay worth it, to me. What good is a lot of I/O if you have to reboot the interface to keep it working? Presonus' hardware might be just fine, but their drivers have been notoriously bad. So bad, that they heavily moderate their forums now to hide the complaints...
 
Dan

I can't get any support on the Presonus forums.  I have a copy of Studio One 3 that I got buying a Presonus Studio 192 that was returned due to hardware problem.  I've "toyed" with Studio One 3 but can only get two channels out of 8 on my MOTU for recording.  I can't even get support for that on their forum.

Try this link:
 
https://www.youtube.com/watch?v=-k0YaAyCQf4
 
Also, the list price on this new unit is about $999.00 according to the video. 
 

JonD I'm sure some experiences have been different than mine. Awhile back when Presonus and others were concentrating on firewire, there were a lot of issues mostly related to firewire chip compatibility. 
 
I can only say I have had my Presonus interface for a long time with no issues. The RTL is high compared to some others, true dat. I have been very happy with it concerning stability. Presonus had some driver issues concerning their FW mixers. I'm hoping maybe this most recent interface ups the ante for them.
 
I did have issues with motu interfaces. Mainly FW comm failure . The Presonus worked fine with the same chipset.
 
So my OP is mostly my own personal situation and satisfaction with their products. YMMV. For me, form factor is also important. I like the two pres on the front of the Presonus. Others make you either use a patch bay or crawl behind your desk for those quick takes.
 
Dan I can clearly understand your logic. RME is a no brainer for quality. I would like to see Presonus come out with a winner on this one. I hope they finally deliver something I might seriously look at for vsti work and have lots of i/o.
 
If I were trying out the Quantum I wouldn't throw away the receipt. Hopefully they have heard the complaints and delivered.