Max Speaker PV-1230 8 Ohms

12" · 8 Ω · 125 W · 90.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	20 Hz
Qts	0.452
Qes	0.51
Qms	4
Vas	317 L
Sd	531 cm²
Xmax	4 mm
Re	5.6 Ω
Bl	10.4 T·m
Mms	79 g
Pe	125 W
Sensitivity	90.5 dB

Alignment hint

EBP	39 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 219 L

EBP < 50: favours a sealed (closed) alignment.

Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.

Substitute candidates

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Max Speaker PV-1230 4 Ohms	20 =	0.452 =	317 =	4 =	93.4 +2.9	close	4 Ω vs 8 Ω: amp load changes	+
RCF L 12P48	19.5 -0.5	0.421 -0.03	270 -47	5.5 +1.5	90.6 +0.1	close	75 W vs 125 W: lower power handling	+
Celestion T1600 vp 1	23.6 +3.6	0.463 +0.01	350 +33	4 =	92.2 +1.7	close	80 W vs 125 W: lower power handling	+
RCF L12P48	19.5 -0.5	0.43 -0.02	270 -47	5.5 +1.5	88.3 -2.2	close	75 W vs 125 W: lower power handling	+
SEAS 33F-WK MH	21.6 +1.6	0.383 -0.07	327.7 +10.7	5 +1	92.1 +1.6	close	80 W vs 125 W: lower power handling	+
Audiotechnology FLEXUNIT 12D775210KAP Custom	19 -1	0.388 -0.06	340 +23	8.6 +4.6	91.1 +0.6	usable		+
Siare 31SPCT vp jmp norm	19.3 -0.7	0.399 -0.05	254 -63	4 =	88.5 -2	usable		+
Audiotechnology FLEXUNIT 12B775210KAP Custom	19 -1	0.382 -0.07	340 +23	8.6 +4.6	91.2 +0.7	usable		+
Ciare HW320	27 +7	0.445 -0.01	293 -24	4.1 +0.1	93.4 +2.9	usable		+
SB Acoustics SB34NRX75-6	19 -1	0.397 -0.05	260 -57	11 +7	91 +0.5	usable		+

Compare the closest 3 against the PV-1230 8 Ohms →

Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.

Used in enclosures (0)

No enclosure in the catalog uses this driver yet.