Setting limiters |
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Tinnitus Rex
Registered User Joined: 31 October 2020 Status: Offline Points: 274 |
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Y splits?..if you link 10 or more amplifiers maybe , but no, no loss
Edited by Tinnitus Rex - 27 July 2021 at 11:12pm |
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"couldn't we just like... use headphones?"
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Conanski
Old Croc Joined: 26 January 2006 Location: Ottawa, Canada Status: Offline Points: 2515 |
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Edited by Conanski - 28 July 2021 at 2:02am |
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Conanski
Old Croc Joined: 26 January 2006 Location: Ottawa, Canada Status: Offline Points: 2515 |
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And what is the Y cable connecting?
Edited by Conanski - 28 July 2021 at 2:07am |
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king david
Young Croc Joined: 17 January 2007 Location: italy Status: Offline Points: 1324 |
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The controller is a Nst audio d48s connected to a powersoft k20 (no dsp version) for the subs, ffa 10000 for the upper bass and ffa 6004 for the midtops. So 12db limiter for the sub is set on the nst audio. The y cable goes from the output of the crossover to the input of the amplifier. The sub box is an hog scoop loaded with a b&c 18sw115
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Conanski
Old Croc Joined: 26 January 2006 Location: Ottawa, Canada Status: Offline Points: 2515 |
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Edited by Conanski - 28 July 2021 at 2:14pm |
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king david
Young Croc Joined: 17 January 2007 Location: italy Status: Offline Points: 1324 |
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.[/QUOTE] Are the other outputs set to limit at the same time? And how are you balancing the levels between the 3 bands.. with the output levels in the DSP or at the gain controls on the amplifiers? The thing is, in order for the limiters to work as designed the amp gains must be all the way up. System balance should be handled at the output level controls in the DSP, that usually means the mid and high output levels are set lower than the sub output as it's amp requires the highest drive level. But loudspeaker sensitivity for each band also factors into the balance equation so it's hard to say where everytihing would end up.
Amp gain all the way up...i control with the dsp and yes mid and top levels are set lower. Usually +6 sub, +1 kick, -1 midtops. Also limiter kicks in at different levels, +14 sub, +12 kick, +9 midtop.
Yeah i know but sometimes i just use ffa 10000 on sub and that one needs the y cable
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Conanski
Old Croc Joined: 26 January 2006 Location: Ottawa, Canada Status: Offline Points: 2515 |
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OK so what is the typical input level on the DSP? If you only drive it to unity(0dB) then your output levels are too low... add another 6dB to everything. And yes the limiters are set at different drive levels but they should all activate at the same time when music is playing, what you don't want is for example the subs to limit and the kicks and tops to keep getting louder, that wil sound unbalanced.
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king david
Young Croc Joined: 17 January 2007 Location: italy Status: Offline Points: 1324 |
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Yes they are set at +6db, no worries everything’s good, I love the system, I’d just I like to know if I can drive the sub drivers/sub amp combination harder without frying everything. Still, it’s mostly just to talk, as COVID and restrictions forced the system to be
Used just few times since March 2020 Edited by king david - 28 July 2021 at 8:24pm |
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toastyghost
The 10,000 Points Club Joined: 09 January 2007 Location: Manchester Status: Offline Points: 10920 |
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If you want to check things are being done properly, then along with the AES rating for the driver in free air, you also need to disregard the nominal free air impedance value and measure the electrical impedance curve of the driver in the cabinet.
You can do that with a good quality 1K resistor, some crocodile clips and the free REW software. There’s a guide in the manual that comes with it. Then you can determine the nominal impedance for the pass band the sub operates in, and recalculate the limit threshold. |
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