Optimale Gehäusegröße für Orion H2 10.4

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Bin auf der Suche nach der Optimalen Größe für eine Bassreflexkiste für 2 x 25 Orion H2.

Sie sollte auf max Pegel ausgereichtet sein sowie für alle Musikrichtungen.
Es handelt sich bei dem Fahrzeug um einen Van.

Die Daten vom Woofer wären:

ORION H2 10.4 25cm Subwoofer

2000 Watt RMS Dauerbelastbarkeit
2500 Watt RMS Impulsbelastbarkeit
Impedanz 2x 4 Ohm
Nenndurchmesser 25cm/10"
Wirkungsgrad 85,2dB
Membranhub Xmax. 29mm
Einbautiefe 191mm

Specifications:
Model Number H2 10.2 H2 10.4
Thiele/Small Parameters
Fs (free-air resonance, Hz) 37.96 39.06
Vas (equivalent compliance, cu. ft.) 0.34 0.37
Vas (equivalent compliance, liters) 9.68 10.7
Qms (Q, mechanical) 8.72 6.73
Qes (Q, electrical) 0.63 0.68
Qts (total driver Q) 0.58 0.62
Re (DC resistance, ohms) 3.11 7.05
Z (nominal impedance, ohms) 4 8
Le (inductance, mh) 1.42 2.6
Efficiency (2.83v/1M, dB) 85.2 82
Xmax (one way linear excursion, in.) 1.14 1.14
Xmax (one way linear excursion, mm) 29 29
Pe (continuous power handling, watts) 2000 2000
Peak power handling (music, watts) 2500 2500
Mms (total moving mass, grams) 218.23 186.63
Cms (mechanical compliance, mm/N) 81 79
Bl (motor strength, Tesla-M) 16.1 21.51
Sd (effective radiating area, sq. m.) 0.029 0.029
Sd (effective radiating area, sq. in.) 44.95 44.95
Frequency range (Hz) 30-2.5k 30-2.5k
Energy Bandwidth Product (EBP) 60.25 55.41
Model Number H2 10.2 H2 10.4
Driver Physical Dimension
Speaker Displacement (cu. ft) 0.28 0.28
Mounting hole diameter (inches) 9.25 9.25
Mounting depth (inches *) 7.5 7.5
Basket diameter (inches) 11 11
Model Number H2 10.2 H2 10.4
Recommended Enclosures
1500 watt Sealed enclosure (cu. ft.) 0.5 0.66
2500 watt Sealed enclosure (cu. ft.) 0.33 0.33
1500 watt Vented enclosure (cu. ft.) 0.75 0.65
Port tuning frequency (Hz) 26 30
Port diameter (inside, in.) 3 3
Equivalent square port (in.) 2.65x2.65 2.65x2.65
Port length (in.) 29.8 24.7
2500 watt Vented enclosure (cu. ft.) 0.6 0.5
Port tuning frequency (Hz) 29 34
Port diameter (inside, in.) 3 3
Equivalent square port (in.) 2.65x2.65 2.65x2.65
Port length (in.) 32.6 27.5