Hyper Phase CM15S

15" · 8 Ω · 150 W · 99.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	38 Hz
Qts	0.349
Qes	0.36
Qms	11.82
Vas	245 L
Sd	880 cm²
Xmax	4.5 mm
Re	5.8 Ω
Bl	17.3 T·m
Mms	77.7 g
Pe	150 W
Sensitivity	99.1 dB

Alignment hint

EBP	106 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 78.9 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	Notes	Compare
Fostex L 467 B	40 +2	0.339 -0.01	245 =	4.4 -0.1	99.2 +0.1	close	Xmax 4.4 mm < 4.5 mm: lower excursion-limited SPL	+
Fostex L 467	40 +2	0.339 -0.01	243.5 -1.5	4.4 -0.1	99.2 +0.1	close	Xmax 4.4 mm < 4.5 mm: lower excursion-limited SPL	+
Beyma AUDIOVALVE	36 -2	0.355 +0.01	242.2 -2.8	4.5 =	97.7 -1.4	close		+
Faital PRO 15PR450	35 -3	0.35 =	235.6 -9.4	6 +1.5	98 -1.1	close		+
Audio Valves 380 MSP A	36 -2	0.354 +0.01	242.2 -2.8	4 -0.5	97.7 -1.4	close	Xmax 4 mm < 4.5 mm: lower excursion-limited SPL	+
Eminence OMEGA PRO 15	39 +1	0.345 =	196 -49	4.8 +0.3	99.1 =	close		+
B&C 15 PH 40	38 =	0.334 -0.01	244 -1	3.5 -1	99.6 +0.5	close	Xmax 3.5 mm < 4.5 mm: lower excursion-limited SPL	+
Faital PRO 15PR400 v2021	35 -3	0.322 -0.03	248.9 +3.9	5.8 +1.3	98.9 -0.2	close		+
Faital PRO 15PR400	35 -3	0.32 -0.03	248.9 +3.9	5.75 +1.25	99 -0.1	close		+
Visaton BGS 40 v1	38 =	0.306 -0.04	263 +18	4.6 +0.1	98.5 -0.6	close		+

Compare the closest 3 against the CM15S →

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.