ScanSpeak 25W8565-01 or 26W/8861T00 in Push/Pull?

[HiFiNutNut]

I would like to build a HQ sealed box from 20Hz to 100Hz. While considering using the SS 10" woofers in a push pull configuration I happened to come across Lynn Olson's "Good Bass" article for his Ariel woofers. What a coincidence! My thought happened to be in line with Olson's but he has done all the wonderful work I need! He recommends using the 25W8565-01 in a front-back push pull (while I am thinking about front-front push pull) in a 100 ltr box which gives a -3dB point at 35Hz.

I am attempting to use active EQ to give a 3dB boost at 25Hz to achieve a flatter FR because I have a large room and can't expect too much from room gain. So I am thinking about using the 26W/8861T00 (Revelator) instead of the 25W/8565-01 (classic) because the Revelator has 9mm linear excursion while the classic has 6.5m. I understand the 25W/8565-01 has a .34 Qts while the 26W/8861T00 has a .31 Qts but I guess the high excursion may be needed in my application.

Would this work? What box volume should I use to get a Q of about .7?

Many thanks,
Regards,
Bill


25W/8565-01

Re 5.5 ohm
Le 0.6 mH
fs 19 Hz
Qms 5.6
Qes 0.36
Qts 0.34
Bl 9.3 Tm
Mms 47 g
Sd 330 cm2
Vas 229 ltrs
Sensitivity 88 dB
Linear excursion +/- 6.5 mm
Max mech. excursion +/- 12 mm


26W/8861T00

Re 6.2 ohm
Le 0.35 mH
fs 19 Hz
Qms 5.2
Qes 0.33
Qts 0.31
Bl 9.9 Tm
Mms 43.5 g
Sd 320 cm2
Vas 234 ltrs
Sensitivity 88.5 dB
Linear excursion +/- 9 mm
Max mech. excursion +/- 14 mm