I am currently running balanced xlrs out from my xilica xp4080 crossover to my asx50btl, and asx125btl amp modules (6 modules to the amp). I am going to be selling my Xilica and replacing it with a MiniDSP ddrc88a for crossover and Dirac
Questions:
1: If I run rcas out of the minidsp and into my 6 channel icepower amp...can I just rewire my xlrs on the amp for rca wiring (non balanced hookup)?
2: If so will my modules still run in bridged btl mode? If not is there a way to be able to get the power of bridged without a balanced source?
If this works...can I connect up 2 asx125btl amps to 2 different woofers from the same XLR, or do I need to use 2 XLRs and do the split in the crossover? I would like to do this because I have 2 woofers in each cabinet and they are each 4 ohms, but when driven off the same amp they are 8 ohms. I am thinking if I could drive each woofer with its own amp I could get more power to each woofer.
Does this make sense? Is there a downside to doing it this way?
Questions:
1: If I run rcas out of the minidsp and into my 6 channel icepower amp...can I just rewire my xlrs on the amp for rca wiring (non balanced hookup)?
2: If so will my modules still run in bridged btl mode? If not is there a way to be able to get the power of bridged without a balanced source?
If this works...can I connect up 2 asx125btl amps to 2 different woofers from the same XLR, or do I need to use 2 XLRs and do the split in the crossover? I would like to do this because I have 2 woofers in each cabinet and they are each 4 ohms, but when driven off the same amp they are 8 ohms. I am thinking if I could drive each woofer with its own amp I could get more power to each woofer.
Does this make sense? Is there a downside to doing it this way?
ASX Modules
You do need to have balanced or anti-phase signals into the ASX2 modules to use them in bridged mode. In bridge mode, the two amplifiers on each module are still two amplifiers and it is only by feeding them with signals that are 180 degrees out of phase (that the signal to one of the amps on each module is inverted with respect to the other amp) will you get double the voltage swing.
You do need to have balanced or anti-phase signals into the ASX2 modules to use them in bridged mode. In bridge mode, the two amplifiers on each module are still two amplifiers and it is only by feeding them with signals that are 180 degrees out of phase (that the signal to one of the amps on each module is inverted with respect to the other amp) will you get double the voltage swing.
Is there a product I could buy that would give them a anti-phase signal other than coming from a balanced source? I will be using a Minidsp ddrc88a...which does have analog and balanced inputs and outputs. If I used rca inputs and xlr outputs in it...would that do anti-phase?
Your Minidsp module does seem to output antiphase signals so you can connect directly from there to the ASX amplifiers assuming that MiniDSP have implemented full signal balancing*. Also the 125ASX2 must have its bridging pin connected to ground.
*Read "Hey That's Cheating" at the end of this article Balanced Transmitter and Receiver II
*Read "Hey That's Cheating" at the end of this article Balanced Transmitter and Receiver II
Does anyone know what the max voltage is to drive the amps? I need to know to set the output gain on my minidsp ddrc88a.