Impedance and Amp Choice Dilemma

[Freudie1]

Need some insight from some of the more experienced members.

 

The scenario:

 

I have two Fi Audio Halycon 15"s (basically the Omegas with a few more tweaks).  Based on the limited information they can handle at least 4500 watts.

 

Current amp (still building the system):  Orion HCCA 3000.1 dsplx

 

Thoughts:  Plan is/was to run the two subs wired at a final 1 ohm load (they are 1 ohm dvc subs).  Problem is of course impedance rise.  Modelling this in Winisd it will essentially rise to 2+ ohms around the tuning frequency of my enclosure (32 hz) resulting in less than desired power output (amp dynos and clamp videos show around 4800 watts at 1 ohm with a system voltage of 14.4-ish volts which is what I am limited to in my system).

 

That's a bit underpowered for these beasts I think.

 

Question:  Thinking of adding a second 3000.1. dsplx and using one per sub.  That would allow me to wire each sub to .5 ohms which with impedance rise would present about a 1.2 ohm load to each amplifier resulting in more power PER sub.  Not totally sure about this option as I am already space constrained on the amp rack AND I would need a second lithium bank and quite a bit more power runs and blocks.

 

Alternatively:  COULD ditch the 3000.1 route and move up to the Orion 12500.1 dsplx.  That would fit on the rack, might need to add a second lithium bank still, but same wire runs and blocks would work.  Concern is once again impedance rise as with one amp and 2 subs I would still be left with a 1 ohm wiring configuration with rise moving the effective load to 2+ ohms.

 

Also:  IF I went the two amp route, how do you control the bass level without having to go with a bass knob per amp?  In-line signal attenuator?  THOUGHT about strapping the two 3000.1's since that would allow me to use one bass knob, BUT once again I keep coming back to the impedance dilemma and effective output.

 

Help appreciated!

[Freudie1]

Just spoke with Orion.  Their "support" said without running the amps in bridged mode you can't run a single remote level control.  When I asked "If I run the amps in bridged mode can I run each amp independently so that I can use one bass knob and NOT wire the speakers between the two amps?" his answer was "Hahaha...you can TRY!".

 

Awesome.

 

At this point IF I was going to go the multiple 3000.1 route I think my plan would be an inline rca signal attenuator before the two amps, run a bass knob per amp set wide open and then breakout the clipping leds to a custom display in the dash (this was the main reason I wanted one knob....clipping indicator.).

 

Ridiculous that in 2024 this is something not built into the amps.