Klipsch K33E

15" · 4 Ω · 150 W · 95.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	27 Hz
Qts	0.63
Qes	0.68
Qms	8.5
Vas	343 L
Sd	890 cm²
Xmax	4 mm
Re	3.5 Ω
Bl	9.9 T·m
Mms	112.5 g
Pe	150 W
Sensitivity	95.5 dB

Alignment hint

EBP	40 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 1320.4 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
Klipsch K34E	28 +1	0.63 =	343 =	4 =	95.5 =	close		+
PRV Audio 15W 700	31.7 +4.7	0.625 -0.01	308.1 -34.9	6.9 +2.9	94.7 -0.8	close	8 Ω vs 4 Ω: amp load changes	+
Celestion K15-100	35 +8	0.594 -0.04	342 -1	5 +1	96.2 +0.7	close	8 Ω vs 4 Ω: amp load changes · 100 W vs 150 W: lower power handling	+
Pyle Audio PPA15 vp	26.7 -0.3	0.669 +0.04	322 -21	5.4 +1.4	90.4 -5.1	close	16 Ω vs 4 Ω: amp load changes	+
Eminence BETA 15	35 +8	0.585 -0.05	334.6 -8.4	4 =	96.6 +1.1	usable	8 Ω vs 4 Ω: amp load changes	+
Eminence BETA 15A	35 +8	0.585 -0.05	334.6 -8.4	4 =	96.6 +1.1	usable	8 Ω vs 4 Ω: amp load changes	+
Stromberg-Carlson RF 484 vp2	31 +4	0.598 -0.03	294.9 -48.1	4 =	92.7 -2.8	usable	8 Ω vs 4 Ω: amp load changes	+
Beyma CM15/T	34 +7	0.615 -0.02	293 -50	3.5 -0.5	95.4 -0.1	usable	8 Ω vs 4 Ω: amp load changes · Xmax 3.5 mm < 4 mm: lower excursion-limited SPL	+
Supravox 400-2000EXC_07V	25 -2	0.599 -0.03	444 +101	5 +1	93.3 -2.2	usable	8 Ω vs 4 Ω: amp load changes	+
Europsonic HPC38/100	24.9 -2.1	0.66 +0.03	425.4 +82.4	4.3 +0.3	92 -3.5	usable	8 Ω vs 4 Ω: amp load changes · 50 W vs 150 W: lower power handling	+

Compare the closest 3 against the K33E →

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.