Powersoft T604A

[jmanso]

Hey there everyone! It's been a while!

We've been running our 4xTitan48 and 2OT12s for a few years now, mostly trouble free, and always extremely happy with it.

But all these years we've been running them through some cheap Thomann amps and have decided to finally step up to a proper amplifier.

That said, we're now the proud owners of a brand new Powersoft T604A and the new Armonia ecossystem is just astounding.

Anyway, the goal of this post is twofold, one is just to double check that my plan is sound, and the second one is to find some help with the Armonia stuff.

So, first things first. The plan is to now fully run our soundsystem on a single 1U amp. Using the PowerSoft Powersharing calculator I can see that I should be able to run it like this:
Channel 1 - 2xTitan 48 in parallel
Channel 2 - 2xTitan 48 in parallel
Channel 3 - Omnitop 12 L
Channel 4 - Omnitop 12 R

now we are in the process of building 2 more tops and we should be also able to run those with no issue on channels 3 and 4, but our endgoal is to have 6 Titans v-plated with 4 OTs and while I ran the simulation and it seems like it would hold, it kind of looks too good to be true. Do you think this would actually have enough power?

Logic here is having 2 pairs of parallel Titans hooked up in parallel which I assume would produce a 2ohm load of 800w (we run 12nlw9300)
But I'm pretty sure I'm just doing this wrong so please, let me know.

For the Second part, Armonia is a beast, coming from a dbx PA2 this is just insanity. The 3way limiting seems fairly interesting, I was wondering if you've had any issues with them or if they are as fool proof as they are famed to be.
Also I have very little knowledge about the FIR filters but it seems very interesting and definitely a time saver. Has anyone generated these for the OT12s that can provide them ? Maybe pointers on some light reading on the matter

Cheers all, and thank you!

[jmanso]

disregard the "SW" profile on channel 3, it's a remnant from another calculation

[Tom Smit]

disregard the "SW" profile on channel 3, it's a remnant from another calculation

Disregard the RMS voltage on channel 3 as well?

[Grant Bunter]

Forget peak voltage and clip voltage if they are greater than the maximum allowable displacement voltage limit in the plans, ie 80V/driver. Don't use them, make them null.

You are after brick wall limiting, ie, once set, it doesn't matter what you do to mixer faders or whatever, the maximum voltage per cab is 80V. Find out from powersoft/armonia how to make that happen. Anything else is putting your drivers at risk.

Your amp doesn't have enough power for subs (i think). 3 x 8ohm cabs in parallel per channel is 2.66Ohms, or just over 2400W, which is greater than the specs of 1500W/2ohms.

You would be better served to add 4 more T48's, then run 1 parallel pair/channel on all 4 channels, and use another amp for your 4 x Otops, which would require 400W/channel for war volume, + some headroom...

[jmanso]

thanks for the quick answer. That would be my thought as well. Initially we were planning on having a T302 just for sub duty. But I guess we can flip that now since the 604 should in theory be more than enough to run 8 titans with a 2 per channel config. and then the T302 should confortably handle 4 OTops. Since we only plan on having a maximum of 6 Titans (and likely not this year), the 604 should be good to handle 4 titans and 4 OTs no biggie.

I found those limiter values a bit high to be honest, but Powersoft does recommend using at least the RMS and Peak Limiters for both mechanical and thermal protection.
from reading this: https://www.powersoft.com/wp-content/up ... n_v1.0.pdf I feel I should probably use the provided values for RMS, adjust the Peak to the 70v Bill recommends on the plans, disregard the clip one alltogether or set it to 70v and lower the peak to maybe 65, 62v

@tom Smit all other values are correct, the only thing the profile changes as far as I know is the attack / release times on the RMS limiter settings.

[Grant Bunter]

About going to 6...

IMHO, it's not worth the effort to build, nor the expense, of 2 more cabs when the same increase could be gained by adding a V plate.

You see, a doubling of cabs adds +6dB, so half of that in this case is +3dB. Adding a V plate is +3dB.

While we're at it, absolutely no point in powersoft being in charge of your cabs, because the amp cannot know what your cabs need for protection. So, don't trust their settings unless you test them.
As I said before, contact powersoft and ask them how to get brick wall limiting. It's the only thing you want/need...

[jmanso]

6 Titans would be the "final form"

Plan moving forward is to redo our v-plate ( We made one about 5 or 6 years ago out of MDF just to experiment and it's long become unusable), make 2 more tops and bring the final stack to 4 vplate t48 and 4 omnitop 12.

That will likely be all we can budget for the rest of the year.

From that step, the next move would be to add 2 more titans, but realistically this is not something that will happen due to the logistics of transportation and storage.

I think I remember seeing here someone building a "foldable v-plate" that would then screw into into the titan. Does anyone recall the thread?