... One more question. I have the subs running from the pre out using both left and right rca's to the first sub , with two rca's going from the 1st sub to the second sub. It'a lot of cable to go from the 1st sub all the way around to the other side of the room to the 2nd sub.
Is there a better way to run the wires, or differently for better results ?
... You should be using the single sub out on the first depth to feed the LFE in of the second Depth, as the first Depth is the one doing the crossover duties and the second is just a slave to the low-pass signal output on the first subs Sub Out connection.
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I run 4 Depth I subs center of the wall front, back and both sides. Left and Right RCA cables from the Preamp line level out to 1 front and 1 side Depth. Then 1 RCA from the combined output to either L or Right line level on the other 2 Depth's.
L & R > R Side sub > combined signal > L or R of Front sub.
L & R > Rear sub > combined signal > L or R of L Side sub.
This sends the line level signal to subs and allows each to be controlled separately.
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Jonathan,
Yes, I have a Simaudio P7 pre with left and right line out going to the first sub and then both left and right rca cables going to the second sub from the 1st sub.
Both Jonathan and Brad, do I just need one rca cable coming off either the left or right from the 1st sub going into the 2nd sub ?
Thanks very much for that Brad. Just to confirm then, the 'combined signal' is the output called 'Sub Out', and it contains the summed signal from the inputs, therefore each Depth must have its own crossover settings. Again, for confirmation, your preamp does NOT perform any bass management, right?
In which case, where do your amps for the mains get their signal from?
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If the Sub out on the 1st Sub is then run to a 2nd Sub and connected to LFE in, it will use the crossover point and other settings of the first sub. The second sub will have no adjustment in this configuration.
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Each additional Sub would be connected the same as the 2nd Sub depending on your preference.
... My Preamp has no bass management so the subs receive a line level signal. My amps only have XLR input so separate cabling is run from the Preamp to them. ...
Thanks Brad, I understand that. However I still need to run rca's from the 2nd sub out's back to my amp inputs, right ?
In a system of the caliber of yours, and with four subs, I'd recommend looking into an active crossover where you can also control delay. A miniDSP DDRC-88A would be perfect, as it handles both balanced (XLR) and RCA connections, can perform bass management and on top of that Dirac room correction.
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