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Powersoft Amplifier Set Up

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PAHS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PAHS Quote  Post ReplyReply Direct Link To This Post Topic: Powersoft Amplifier Set Up
    Posted: 13 August 2019 at 8:20pm
Hi all,

I have recently upgraded my power amplifiers to Powersoft and the non dsp versions, but there are some settings I’m not sure of and having trouble finding relevant data to help.

My set up is:
2 x Powersoft K3s which run 4 X OHM TRS212 mid/highs
2 X Powersoft K8s which run 4 X OHM TRS218 subs 

The DSP I’m using is 2 X DBX Venu360s, 1 for left and 1 for right.

What I’m trying to find out is on the Powersoft amplifiers what do I need to set my maximum output voltage and maximum mains current to? And anything or anywhere which may help to understand this would be great.

Any help would be awesome, thanking you in advance. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2019 at 1:23pm
Oops...




Edited by Earplug - 14 August 2019 at 1:25pm
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el chupacabra View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote el chupacabra Quote  Post ReplyReply Direct Link To This Post Posted: 19 August 2019 at 3:14pm
maximum mains current is going to be based on where you're using them and available power distro. if you're on 13a plugs only you could run one each per k8 and and the k3s on 1 or 2 and limit them to match.

voltage output, you can reduce for the trs212. I haven't looked at the trs212 specs in a few years but I imagine 100-120v is more than enough for passive, for biamping perhaps knock the comps down to 70v. the trs218 you can probably leave fully open at the 169v a k8 peaks out at.

I haven't used any dbx dsp in a long time so couldn't comment on their gain structure/output limiting.
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Bryan M View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bryan M Quote  Post ReplyReply Direct Link To This Post Posted: 12 hours 52 minutes ago at 9:02pm
Can you give me driver wattage and impedance information and I will help you out.

B.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 11 hours 60 minutes ago at 9:54pm
Originally posted by Bryan M Bryan M wrote:

Can you give me driver wattage and impedance information and I will help you out.

B.


Subs are only 2x 650W rated drivers with fairly light cones, 4 ohm nominal. I haven’t seen the impedance curve but what I know about the response at higher levels and the excursion damage that seems to have been fairly common with those boxes I would suggest maybe using the soft clip output voltage limiter to around 130v, and then use the DSP limiters to handle RMS and peak voltage below that. Perhaps 70v RMS and suitable overshoot or gain compensated peak limiter, which is dependent on the amp input sensitivity.

I wouldn’t touch the mains current limiter unless you know you trip breakers in the venue, or it’s 100% B curve in the mains distribution. Best to find that out in a quick soundcheck and avoid leaving your amp on the lowest current setting. We haven’t changed any of ours in six years and haven’t ever popped a fuse, even using a 13A adapter chain and playing heavier music.

Edited by toastyghost - 11 hours 58 minutes ago at 9:56pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bryan M Quote  Post ReplyReply Direct Link To This Post Posted: 11 hours 35 minutes ago at 10:19pm
The amplifires are non DSP versions so i guess he's just looking at clip/rail voltages. 

As toasty says a good place to start with the tops would be 130v.

Any more information on the subs you have would be great.

B.
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