Monacor SPH-300KE vp1

12" · 8 Ω · 120 W · 92.3 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	26.5 Hz
Qts	0.357
Qes	0.39
Qms	4.18
Vas	175 L
Sd	496 cm²
Xmax	6.5 mm
Re	6.2 Ω
Bl	13.7 T·m
Mms	71.1 g
Pe	120 W
Sensitivity	92.3 dB

Alignment hint

EBP	68 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 59.9 L

EBP 50-100: works in either a sealed or ported 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
Dayton Audio ST305-8 Séries II	26.2 -0.3	0.334 -0.02	164 -11	8 +1.5	92.3 =	close		+
HiVi F12	25 -1.5	0.37 +0.01	173.9 -1.1	6 -0.5	90.7 -1.6	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
Eton 12-680-62 HEX	26 -0.5	0.343 -0.01	150 -25	6 -0.5	91.6 -0.7	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
HiVi F12 v2009	26 -0.5	0.367 +0.01	145.6 -29.4	6 -0.5	91.1 -1.2	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
JBL 335151-001	28.2 +1.7	0.355 =	177.3 +2.3	5 -1.5	93.8 +1.5	close	Xmax 5 mm < 6.5 mm: lower excursion-limited SPL	+
Eton 12-680/A8/62 HEX SYMPHONIE II	26 -0.5	0.296 -0.06	173 -2	6 -0.5	92.8 +0.5	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
Philips AD12100W8 vp doum2	29.3 +2.8	0.399 +0.04	165 -10	6 -0.5	92.5 +0.2	close	Xmax 6 mm < 6.5 mm: lower excursion-limited SPL	+
Focal 13V 7511	31.2 +4.7	0.353 =	154.2 -20.8	6.8 +0.3	93.6 +1.3	close		+
Dayton Audio SD315A-88	24.2 -2.3	0.335 -0.02	151.7 -23.3	6.4 -0.1	93.7 +1.4	close	4 Ω vs 8 Ω: amp load changes · Xmax 6.4 mm < 6.5 mm: lower excursion-limited SPL	+
Altec 3124	26 -0.5	0.288 -0.07	186.9 +11.9	6.4 -0.1	92.9 +0.6	close	Xmax 6.4 mm < 6.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the SPH-300KE vp1 →

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.