Monacor SP-30PACT

12" · 8 Ω · 200 W · 99.5 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	47 Hz
Qts	0.277
Qes	0.3
Qms	3.69
Vas	107 L
Sd	510 cm²
Xmax	2 mm
Re	5.2 Ω
Bl	14.1 T·m
Mms	39.1 g
Pe	200 W
Sensitivity	99.5 dB

Alignment hint

EBP	157 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 19.4 L

EBP > 100: favours a ported (bass-reflex) 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	Compare
Monacor SP-30PATC	47 =	0.277 =	107 =	2 =	99.5 =	close	+
Eminence KAPPA-12A	45 -2	0.27 -0.01	112.1 +5.1	3.2 +1.2	99.3 -0.2	close	+
Eminence KAPPA 12	45 -2	0.27 -0.01	112.1 +5.1	3.2 +1.2	99.3 -0.2	close	+
Eminence KAPPA 12 A	45 -2	0.27 -0.01	112.1 +5.1	3.2 +1.2	99.3 -0.2	close	+
Monacor SP-310PA	48 +1	0.248 -0.03	111 +4	2.5 +0.5	99.5 =	close	+
Altec ER-12	47.7 +0.7	0.256 -0.02	121.2 +14.2	2.5 +0.5	99.6 +0.1	close	+
Peavey 1202-4 v1993	47.1 +0.1	0.252 -0.03	100 -7	2.6 +0.6	100.5 +1	close	+
PHL Audio 4550	45 -2	0.289 +0.01	106 -1	4 +2	98.3 -1.2	close	+
Eighteen Sound 12ND520	50 +3	0.27 -0.01	111 +4	4 +2	98.7 -0.8	close	+
18 Sound 12NDA520	50 +3	0.27 -0.01	111 +4	4 +2	100.5 +1	close	+

Compare the closest 3 against the SP-30PACT →

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.