Peavey 1501-4 DT v1993

15" · 4 Ω · 250 W · 102.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	46 Hz
Qts	0.343
Qes	0.4
Qms	2.4
Vas	188 L
Sd	800 cm²
Xmax	1 mm
Re	3.2 Ω
Bl	11.5 T·m
Mms	57.1 g
Pe	250 W
Sensitivity	102.6 dB

Alignment hint

EBP	115 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 57.8 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
Peavey 1505 KADT	44.3 -1.7	0.354 +0.01	187 -1	0.9 -0.1	100.2 -2.4	close	8 Ω vs 4 Ω: amp load changes · Xmax 0.9 mm < 1 mm: lower excursion-limited SPL	+
Peavey 1502-4DT	43.1 -2.9	0.363 +0.02	192 +4	2.8 +1.8	102 -0.6	close		+
P.Audio 15BM-200B	42.9 -3.1	0.325 -0.02	188 =	1.5 +0.5	99.5 -3.1	close	8 Ω vs 4 Ω: amp load changes	+
Fane STUDIO 15L	45 -1	0.338 -0.01	190 +2	4.3 +3.3	100.6 -2	close	8 Ω vs 4 Ω: amp load changes	+
P.Audio SN-15MB	47 +1	0.329 -0.01	176.8 -11.2	3.3 +2.3	101.1 -1.5	close	8 Ω vs 4 Ω: amp load changes	+
Jensen NEO 15-300	42.8 -3.2	0.34 =	194.3 +6.3	2.5 +1.5	99.2 -3.4	close	8 Ω vs 4 Ω: amp load changes	+
Peavey 1505-4 DT v1993	44.6 -1.4	0.373 +0.03	182 -6	5.1 +4.1	102.1 -0.5	usable		+
JBL G135-8	45 -1	0.355 +0.01	235 +47	2.5 +1.5	101.4 -1.2	usable	8 Ω vs 4 Ω: amp load changes	+
Audax PR38LEX100VST vp CBM	42 -4	0.343 =	195 +7	3.5 +2.5	99.4 -3.2	usable	8 Ω vs 4 Ω: amp load changes	+
RCF L 15/864K	50 +4	0.329 -0.01	170 -18	4 +3	101.8 -0.8	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 1501-4 DT v1993 →

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.