low cut

[kabory]

Hello all,
Is my low cut filter getting to my mains correctly, does it matter where in the loop it is being used?
I ask, because I was running my main L & R outs into my eq with the low cut filter engaged. I have now moved my eq over to my send return loops along with my effects processor. My main L & R outs are now just going to my xover which does not have a low cut filter. I assume I am getting low cut only with the mix.
Thanks

[Marty McCann]

That is so very wrong. An Equalizer is NOT an effect. It belongs in-line.

[kabory]

maybe, this is where I got the infor from
https://www.youtube.com/watch?v=S5jfMH7UDvs

[Marty McCann]

The way you wrote it, it seemed as if you had patched the EQ into an Effects loop. Which would indeed be wrong. You should have said Main Insert.

However it is likewise wrong to have an effects processor patched in the manner you wrote. The effects processor does belong in the effects loop.

Also many older mixers do not have a insert into the master.

The Master Insert is a little better because you can read the meters to see the true level the board is sending to the X-Over or power amp.

HOwever the guy in the video is wrong in saying that "it would greatly alter the function of the EQ." This is Bullshit. The funciton of the EQ is the same in either case. The only difference is the input/output LEVEL of the EQ. Its transfer function (equalization) would NOT change.

[kabory]

Thanks for your reply
I ditched that set up and I am using the eq for my monitors only. I need to purchase another

[kabory]

here is the set up I will be attempting tonight. Do you see any errors or improvements that could be made. One thing I am not completely sure about is the amps. I would like the PV1200 for my mains and subs, but there is no low cut. My PV 900 has a low cut as well as my EQ. I could move the EQ but I want to use it on the monitors as they are feedback prone. Not sure which would be better, low cut or more power to my subs.

[kabory]

ok I finally got it all together, I hope. lol
After a lot of head scratching and figuring out things I ended up with the following

Running my mains and subs using my PV1200 amp in 2 channel mono mode, DOD crossover and channel 1 of my DBX EQ with low cut filter.
Running three monitors from my PV900 in Parallel Mono mode using channel 2 of my EQ
Watts and Ohms
2 PR15 mains daisy chained to 4 ohm, 200 watts ea. channel A
2 PR15 Subs daisy chained to 4 ohm, 200 watts ea. channel B
2 EV 12 Monitors daisy chained to 4 ohm, 150 watts ea. channel A
1 4x12 cabinet with horn parallel wired to 8 ohms, 180 watts channel B

[JoshM]

That all looks acceptable and everything, but here is a couple questions for you to consider:

1. Why would you send "Monitor 1 Output" to amp input #2? Would it not make more sense to send it to amp input #1? Then you could send "Monitor #2 Output" to amp input #2. One goes to one and two goes to two that way. This makes it easy to follow the signal path and do troubleshooting later.

2. It is sort of an industry standard that lower frequencies go in the earlier channels of a device and higher frequencies go in upper channels. For instance, it is very common to find biamplified woofer and horn loudspeakers wherein the woofer is wired to Pin 1+ and Pin 1- whilst the horn is wired to Pin 2+ and Pin 2- on the NL-4 connector on the loudspeaker. This connection will typically use a four conductor cable to connect the NL-4 on the loudspeaker to an NL-4 connector on the amp rack or directly to the amplifier. In the case of directly connecting to an amplifier, this will typically mean that Channel 1 on the amplifier will be amplifying the signal for the woofer whilst Channel 2 in the amplifier will be amplifying the signal for the horn.

So, the take away from this is to remember that you should always try to keep things in order so that it is organized and easy to find things later in the heat of battle. Here are some sequences I always try to maintain to keep things easy for tracking down problems in the future:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, etc...
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
Sub, Low, Low-Mid, Mid, Mid-High, High
Sub, Low, Mid, High
Left, Right, Center, Sub, Surround Left, Surround Right, Surround Rear Left, Surround Rear Right
-or (depending on the situation)-
Left, Center, Right, Sub, Surround Left, Surround Right, Surround Rear Left, Surround Rear Right

So, in the case of a loudspeaker processor like the VSX-26, I will ALWAYS set it up as follows:
Input A = LEFT Input
Input B = RIGHT Input
Output 1. Left Low (Sub)
Output 2. Left Mid (Woofer)
Output 3. Left High (Horn)
Output 4. Right Low (Sub)
Output 5. Right Mid (Woofer)
Output 6. Right High (Horn)

When you are dealing with more complex systems, maintaining these rules about order will always keep things simplified.