Presonus has announced AVB support is being added so you'll be able to do multi track recording over Ethernet soon with the RM series.
Enjoy the benefits of a premium membership!
Upgrade Account
-
TalkBass has been independent since 1998. Add your voice.
Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
Join free Log in
Want zero display ads or expanded classifieds tools? Compare plans.
Digital Mixers. Now adding NAMM 2015 entries
- Thread starter Tunaman
- Start date
QU-QUESTIONS
1) Motorized faders: If the Ipad control user is moving a fader up & someone at the board is moving it down, will they break???
2) You can send whatever combo of channels out the mix outputs. 1-4 mono but then 5 7 & 9 just double into L&R correct? So you still have 7 outputs in reality.
3) You guys use the built in crossover & have decent results or you let the cabs do it? When we run the kick drum in our current PA it bleeds too much into the mains but with the QU we could low pass it at the mixer to make sure it doesnt right?
1) Motorized faders: If the Ipad control user is moving a fader up & someone at the board is moving it down, will they break???
2) You can send whatever combo of channels out the mix outputs. 1-4 mono but then 5 7 & 9 just double into L&R correct? So you still have 7 outputs in reality.
3) You guys use the built in crossover & have decent results or you let the cabs do it? When we run the kick drum in our current PA it bleeds too much into the mains but with the QU we could low pass it at the mixer to make sure it doesnt right?
One way to make sure that content going to the subs doesn't bleed into the mid/high cabinets is to use a spare AUX send to feed the subs, discrete of the L/R mains (which would ONLY feed the L/R speakers, not the sub). You add as much or as little as you want to the subs, and ditto to the mid/hi mains. The independence of control is what makes this work well.
Items with subwoofer content worth amplifying are: kick, low toms (perhaps), bass guitar, keyboards (IMHO, a left-hand happy keyboardist will do more to disrupt the continuity of the bass/kick groove and is perhaps better left out of the realm of the subs, unless there are drum triggers and/or special effects that require sending them to the subs). Otherwise, vocals and guitars don't have a whole lot of business to do below 100hz, and even if they do for some reason, I doubt you'd miss it.
Really, only a few channels need to go to the subs, and using a spare Aux is a great way to achieve this.
I totally get the Aux fed subs & thats what I do now, but with these new mixers, can't low passing those few sub channels accomplish the same thing in a much easier way?
I guess I don't understand the question, then, or there's a feature in the QU that I don't understand that is unique to their mixers. I'm curious, though, so could you explain how you're running your aux fed subs and mains right now? Forgive me if I'm just not getting this. My brain is pretty work-fried right now (I was up at 3:30AM today). LOL.
Yeah, you can apply low or high passes to every channel... you can do that with your Xair too. Something you couldn't do with just the old analog boards! So for example you have your kick drum channel set to a low pass at 100hz & below matching your 100hz crossover point.... viola... kick drum only to sub.
Yes, but that assumes you never want to put kick drum in your top end cabinets (kick attack). Is that what you are intending to do?
Right now we have our sub just getting the kick drum & not in the mains, its not a good setup but its whats worked best for now as the kick was too prevalent in our mains. I would have to put the PA2 back into our system & test crossover settings to see if I can get that kick drum to not blow up our mains again, we changed on a fly & haven't adjusted since
The Presonus info on AVB can be found here http://www.presonus.com/downloads/products/pdf/PreSonus_-_StudioLive_AVB1.pdf
Yes, AVB allows you to use a cat-5e cable in place of a "copper" snake so you can use an RM series mixer as a stage box and control it with a Studiolive AI board. My comment about recording was related to this item from the FAQ section... "Can you connect a computer via AVB Ethernet for recording and playback? At this time the PreSonus AVB network does not support Ethernet computer connections for audio playback and recording. This is planned for a future update" So I overstated that it is announced. In reality, they announced it as a future update. Pretty cool stuff!
Last edited:
The issue is that the slope of the hpf on most boards is too gradual. To kill mic stand rumble, etc you really want a steeper filter. Just hpf'ing vocal mics leaves too much in the subs. If the current crop of digital boards had variable slope hpf's that could change the game. As it is, balancing the aux output and main output isn't that tough...
Last edited:
I did a ton of reading on Aux fed subs last night. I get it better now. our problem is the kick drum beating our PRX712 mains regardless of crossover. I have to get a 31 band EQ & take out the frequencies that are over exerting them or something. Thats my research project today!
Are you using an external crossover to hpf the tops ? In general, you can't do aux fed sub's without one... preferably one that allows for a very steep slope... You want that kick/bass/fl tom in the tops just not the low end of it, otherwise you lose all the snap.
One of the beauties of the K- series stuff is that the hpf is in the top, the lpf is in the sub. So there I can just power up the sub from and Aux and the tops from the Main outs and set the switches appropriately.
That is one reason I settled on the Qsc stuff and moved my PRX's. 2 ohm woofers in the 612's was another reason... Too close to welding for my taste.
In my 'large' rig, I use BSS MiniDrives. Which are ancient, dated, discontinued and smoke about everything else I've been exposed to. I keep hoping someone at Harmon will wake up and design a drive rack as good as what BSS (also Harmon owned) was doing way, way back there... Now if they would build some of the minidrive functionality into an SI board... Oh man... Oops, /rant...
One of the beauties of the K- series stuff is that the hpf is in the top, the lpf is in the sub. So there I can just power up the sub from and Aux and the tops from the Main outs and set the switches appropriately.
That is one reason I settled on the Qsc stuff and moved my PRX's. 2 ohm woofers in the 612's was another reason... Too close to welding for my taste.
In my 'large' rig, I use BSS MiniDrives. Which are ancient, dated, discontinued and smoke about everything else I've been exposed to. I keep hoping someone at Harmon will wake up and design a drive rack as good as what BSS (also Harmon owned) was doing way, way back there... Now if they would build some of the minidrive functionality into an SI board... Oh man... Oops, /rant...
Last edited:
what? no!
kick belongs in subs and tops, in fact most of its tone and character is in the tops' range, above 100Hz.
get your overall subs/tops balance right, then EQ your kick channel right, then get its level with the rest of the mix right, and the problem takes care of itself.
aux-fed or not, there is literally no instrument that goes into the subs only, without also going into the tops.
I have the Driverack PA2 which is actually pretty cool so I can do anything. I wrote an email to the band leader about changing all our wiring as we have everything messed up. 712PRX running full range, Subs just have the kick & the kick not in the main. A 31 band EQ sitting idle & my Driverack takes the sub input & just spits it out to the crappy sub! He told me he was confused!
Heres what I wrote... Put the kick drum back in the tops & use the 31 band EQ on it, boost a bit at 80 hz, cut at 300-500hz. Run the mains out the Driverack 120hz 24LR crossover the tops & subs. Cut a little at the crossover point. Our board only has 2 Aux outs (Its super old) Instead of running ONE mix to the IEMs & ONE out to the floor monitors. Run BOTH to the IEMs, use the blend to choose the mix & then use the out on IEM base to run the powered floor monitors.
I think this will work much better but if this is overwhelming to him I fear the QU-16 will be WAY too much. For example to change the levels in the monitor you just gotta reach for the knob... where you gotta hit the mix button, then move the fader, then hit he main button. May overwhelm him while playing at the same time.
Yeah, its been hard to get these guys moving but changes have to happen now as we lost a Mackie SRS1500 sub. I tested it yesterday & it distorts bad, one of those wont carry the clubs we play so...
TOP SUB CHOICES
ONE) PRX718XLF [Invalid or Expired Link Removed]
ONE) SRX818SP (New for 2015) SRX818SP
TWO) EKX-18SP (New for 2015) Invalid Link Removed
The 718XLF lowpasses at 90hz while the tops get 120hz so I'm a bit reluctant to believe that gap doesn't affect the kick. Really no controls
SRX 818SP 3" voice magnet, MUCH better response to 120hz, only $200 more than PRX. Controllable DSP with screen (No manual out yet)
EKX- Controllable or defeat-able crossover, Super light at 72lbs MAP at $999 vs $1399 for PRX
KW-181- With the casters it wont fit in my VERY tight storage place next to my GK NEO412.
I'm still trolling for a QU-16 if I can convince the band leader to grab one Wednesday. the going used rate on Ebay is $1400, New with some searching you can get one for about $1650
Yamaha has a long history with digital mixers. For a time they were pretty close to the top. The new stuff will probably be very well thought out and well built.
Personally I want to spend some time with a well setup a Soundcraft SI and stage box. Definitely more dough but the more I listen to those boards the more I like them...
Personally I want to spend some time with a well setup a Soundcraft SI and stage box. Definitely more dough but the more I listen to those boards the more I like them...
Still researching the 2015 mixers for you guys. Nothing doing. Personally i'm hoping 2016 is a better year. New laptops with SSD & USB 3.0 3.1 are coming & they can move FAR more data than USB 2.0 for recording. I can't see committing to a mixer for a decade with USB 2.0, same for a laptop.
