Aux Fed Subs Using DRPA
Hello,
I am using a DriveRack PA and am running a mono mix to the FOH. Since I'm
mono, I am only feeding the left side of the DRPA. I come out of the left high
output into a JBL MPX1200 amp and then to 2 passively crossed high
cabinets. I'm crossing at 100Hz as that is the recommendation of the high
cabinet manufacturer. I am coming out of the left low output into a Crown
MA3600 and then to 2 JBL SR4718's or SR4719's depending on the venue. Since
I'm not using the right side of the DRPA, I am wanting to use an aux send from
the board into the right input then out of the right low output to the low amp.
So I would basically be feeding the high cabinets from the left side of the
DRPA and the low cabinets from the right side of the DRPA. I can't think of
a reason that this wouldn't work. I asked the question on a ProSoundWeb
forum and had mixed answers. One guy said that he has used the DRPA this
way and has not had a problem. Another guy said that since the 2 sides of
the DRPA are stereo linked, that they would interact and cause problems.
Also, I don't use the feedback eliminator, compressors or limiters in this unit.
All I'm using is the crossover and graphic EQ. I thought I should probably ask
the people who make this unit to get the correct answer. Can I use the DRPA
this way without problems ?
Thanx for your time.
Don Ullstrom
rockitboy@msn.com
I am using a DriveRack PA and am running a mono mix to the FOH. Since I'm
mono, I am only feeding the left side of the DRPA. I come out of the left high
output into a JBL MPX1200 amp and then to 2 passively crossed high
cabinets. I'm crossing at 100Hz as that is the recommendation of the high
cabinet manufacturer. I am coming out of the left low output into a Crown
MA3600 and then to 2 JBL SR4718's or SR4719's depending on the venue. Since
I'm not using the right side of the DRPA, I am wanting to use an aux send from
the board into the right input then out of the right low output to the low amp.
So I would basically be feeding the high cabinets from the left side of the
DRPA and the low cabinets from the right side of the DRPA. I can't think of
a reason that this wouldn't work. I asked the question on a ProSoundWeb
forum and had mixed answers. One guy said that he has used the DRPA this
way and has not had a problem. Another guy said that since the 2 sides of
the DRPA are stereo linked, that they would interact and cause problems.
Also, I don't use the feedback eliminator, compressors or limiters in this unit.
All I'm using is the crossover and graphic EQ. I thought I should probably ask
the people who make this unit to get the correct answer. Can I use the DRPA
this way without problems ?
Thanx for your time.
Don Ullstrom
rockitboy@msn.com
Comments
This FAQ post will give you an idea. It is a lengthy article and lays out a "concept" that you can alter to suit your needs (there is a blurb at the end).
DRA
So, if you want fullrange tops and subs on separate inputs you need to set up a 2X4 with the tops set up on the left in and use the left hi outs, and the aux feed to the right input goes to the right low out.
For Bi-amp tops, it's 2X6 with left input for the tops, with the left hi, and mid used for the tops, and the right low out to the subs.
You will need to set up the HPF and LPF after you save the config.
We have compiled a wealth of info to help optimize the driverack experience here, please feel free to read, ask questions and contribute, if you wish. There is no bashing or flaming here and the only dumb question is the one you don't ask...
Gadget
Moderator
DRA
I wouldn't have asked if you hadn't brought it up.
DRA
Sorry G, I shouldn'ta bought it up.
But remember when we got to your house you were so hung over that you wouldn't even open the door! Instead you
Right after that was when Gadgit found out about you and Shaliqua, and put all your stuff in a box to the left, to the left, to the left. Gadgit put everything you own in a box to the left.
Whew! That was fun! Been a while.
DRA