Would you use a .56 Qts driver in a ported alignment?

You could also try a high-passed bass reflex tuning, using a big cap (500-1500 uF).
This allows useful and smooth integration of a low frequency ripple peak.

Here is an example:
Sica 3.5H1CS with Qts = 0.66 (measured here)
in 6 liter enclosure tuned to 50 Hz
red without series cap, black with series cap 1200 uF:

BRfilter.png
 
32 speakers with high Fs dont make bass regardless of what you do.
32 speakers have a lot of SPL capability and allow being pushed with linkwitz transform.

a closed speaker has a rolloff at about 12 dB/oct.
So at 30 Hz SPL is down 24 dB compared to 120 Hz.

but each doubling of driver number allows +6 dB SPL.
2 drivers + 6 dB
4 drivers +12 dB
8 drivers +18 dB
16 drivers + 24 dB
32 drivers + 30 dB

so in theory using 32 drivers allows double SPL at a F3 two octaves down, compared to a single driver.
 
It is -just a particular type.

Roger Russell's IDS 25 arrays & their many clones aren't renowned for a lack of LF, so assuming you pick the driver & numbers properly for the intended SPL & dynamic range at the listening position once equalised, I don't see any issue, other than potentially needing a sharp HP if vented to prevent over-excursion.
 
32 speakers with high Fs dont make bass regardless of what you do.
If sealed F3 is 120 Hz then that is all they got.
Fs of the driver is 81hz and 2mm of xmax…….in a vented alignment, I can sim a safe F3 of 80hz and with 32 drivers, SPL would drive most folks out of the room…….i just worry about a sloppy impulse and peaking response

if I seal them, I can go with a larger enclosure for an f3 of 100hz…….this will require a subwoofer/bass module very closely located or as the system base.
 
Fs of the driver is 81hz and 2mm of xmax…….in a vented alignment, I can sim a safe F3 of 80hz and with 32 drivers, SPL would drive most folks out of the room…….i just worry about a sloppy impulse and peaking response

if I seal them, I can go with a larger enclosure for an f3 of 100hz…….this will require a subwoofer/bass module very closely located or as the system base.
Why not just run them sealed with a system Q of, say, 1.0 and EQ them to the desired LF cutoff if the distortion numbers are suitable (I do appreciate not everybody wants to or can run EQ, but if you can, it may be a viable solution). That's how most wideband arrays are run, so it certainly works, or can work with the right units for the system requirements.
 
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Enclosure size or volume isn't a concern so just considering overall performance............sealed F3 is too high at 120hz for this application but i can get it to 80hz by porting it and power handling in this application isn't a problem......they'll be 32 of em per channel.

When Qts is this high it implies that, if a VB is possible the box volume will be several times Vab.

I know of some practical alignments for higher Qts values that use an auxiliary (line level) highpass filter. Here is a link to the alignment table, from an article about these sorts of alignments by Rod Elliot:
https://sound-au.com/qb5align.htm#s24

For example, from the table:
Qts = 0.562
Vb = 2.37 * Vas
Second Order Active Highpass Filter Parameters: F = 0.975 * Fs, Q = 0.516
Result:
Fb = Fs
kp = 6.38 (see article for info)
 
Fs of the driver is 81hz and 2mm of xmax…….in a vented alignment, I can sim a safe F3 of 80hz and with 32 drivers, SPL would drive most folks out of the room…….i just worry about a sloppy impulse and peaking response

if I seal them, I can go with a larger enclosure for an f3 of 100hz…….this will require a subwoofer/bass module very closely located or as the system base.

What size driver? Or better, what driver? Sorry if i missed seeing this...