Peavey 1505-8 KA DT BW

15" · 8 Ω · 350 W · 98.9 dB

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	50.8 Hz
Qts	0.35
Qes	0.367
Qms	7.6
Vas	143.5 L
Sd	841 cm²
Xmax	9 mm
Re	5.23 Ω
Bl	17.7 T·m
Mms	68.5 g
Pe	350 W
Sensitivity	98.9 dB

Alignment hint

EBP	138 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 46.6 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
Sica 15 N 3 PL	46.9 -3.9	0.37 +0.02	140.4 -3.1	10 +1	99.8 +0.9	close		+
MC Kenzie C15.500BS	45 -5.8	0.35 =	145 +1.5	6.5 -2.5	98.8 -0.1	close	Xmax 6.5 mm < 9 mm: lower excursion-limited SPL	+
B&C 15NDL88	45 -5.8	0.34 -0.01	126 -17.5	8 -1	99 +0.1	close	Xmax 8 mm < 9 mm: lower excursion-limited SPL	+
18 Sound 15ND840	43 -7.8	0.37 +0.02	163 +19.5	9.5 +0.5	99 +0.1	close		+
Precision Devices PD156	50.15 -0.65	0.38 +0.03	120.17 -23.33	9.5 +0.5	97 -1.9	close	16 Ω vs 8 Ω: amp load changes	+
Beyma 15MCB700	44 -6.8	0.34 -0.01	148 +4.5	7 -2	99 +0.1	close	Xmax 7 mm < 9 mm: lower excursion-limited SPL	+
Eminence KAPPA PRO 15 LF	46 -4.8	0.373 +0.02	142.2 -1.3	6.7 -2.3	98.9 =	close	Xmax 6.7 mm < 9 mm: lower excursion-limited SPL	+
Faital PRO 15FH530	39 -11.8	0.35 =	140.6 -2.9	9.25 +0.25	97 -1.9	close		+
18 Sound 15ND940	41 -9.8	0.36 +0.01	166 +22.5	9.5 +0.5	98.5 -0.4	close	16 Ω vs 8 Ω: amp load changes	+
18 Sound 15NTLW3500	45 -5.8	0.39 +0.04	131 -12.5	8.3 -0.7	98 -0.9	close	Xmax 8.3 mm < 9 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 1505-8 KA DT BW →

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.