Monacor SPH-315

12" · 8 Ω · 100 W · 94.5 dB

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	22 Hz
Qts	0.235
Qes	0.26
Qms	2.4
Vas	330 L
Sd	510 cm²
Xmax	4.5 mm
Re	6.1 Ω
Bl	13.7 T·m
Mms	57.8 g
Pe	100 W
Sensitivity	94.5 dB

Alignment hint

EBP	85 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 41 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
AER STUDIO BASS	21 -1	0.237 =	360 +30	5.2 +0.7	94.3 -0.2	close		+
SEAS 33F-WKA	22 =	0.209 -0.03	310 -20	5 +0.5	95 +0.5	close	70 W vs 100 W: lower power handling	+
Monacor SPH-300TC vp 1 seule bobine	23 +1	0.239 =	290 -40	4 -0.5	94.3 -0.2	close	Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Siare 31TE	23 +1	0.265 +0.03	322 -8	5 +0.5	95.1 +0.6	close		+
Ciare CW322	22 =	0.251 +0.02	355 +25	5 +0.5	97.4 +2.9	close	4 Ω vs 8 Ω: amp load changes	+
Monacor SPP-300/AD	23 +1	0.265 +0.03	305 -25	5 +0.5	93.9 -0.6	close		+
Vifa M30W0-49-08	21 -1	0.225 -0.01	400 +70	6 +1.5	95.2 +0.7	close		+
Visaton W300S4	23 +1	0.253 +0.02	300 -30	7 +2.5	96.4 +1.9	close	4 Ω vs 8 Ω: amp load changes	+
Monacor SPH-300TC	23 +1	0.239 =	290 -40	4 -0.5	97.3 +2.8	close	4 Ω vs 8 Ω: amp load changes · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Monacor SPH-300TC v2	23 +1	0.239 =	290 -40	4 -0.5	97.3 +2.8	close	4 Ω vs 8 Ω: amp load changes · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the SPH-315 →

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.