Polk Audio DB10 (OLD)

10" · 4 Ω · 300 W · 83.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	4 Ω
Fs	26.7 Hz
Qts	0.376
Qes	0.409
Qms	4.91
Vas	31.998 L
Sd	307 cm²
Xmax	8.7 mm
Re	3.71 Ω
Bl	15 T·m
Mms	148 g
Pe	300 W
Sensitivity	83.6 dB

Alignment hint

EBP	65 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 12.6 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
Audio System HX10 SQ	27.6 +0.9	0.39 +0.01	31.5 -0.5	11.75 +3.05	83.9 +0.3	close		+
Dayton Audio RSS265HO-4 v2015	26.9 +0.2	0.356 -0.02	29.4 -2.6	9.3 +0.6	87.2 +3.6	close		+
Infinity KAPPA 1000W	30.5 +3.8	0.37 -0.01	27 -5	10.25 +1.55	84.6 +1	close	2 Ω vs 4 Ω: amp load changes	+
Dayton Audio TS280D-4	25.6 -1.1	0.404 +0.03	33.7 +1.7	8.3 -0.4	87.1 +3.5	close	Xmax 8.3 mm < 8.7 mm: lower excursion-limited SPL	+
Polk Audio DX10-4	28.7 +2	0.49 +0.11	33.4 +1.4	8.7 =	83.6 =	usable		+
MTX Audio T610-44	28.4 +1.7	0.484 +0.11	31.7 -0.3	7.8 -0.9	84.1 +0.5	usable	8 Ω vs 4 Ω: amp load changes · Xmax 7.8 mm < 8.7 mm: lower excursion-limited SPL	+
Infinity KAPPA PERFECT 10.1	28.35 +1.65	0.42 +0.04	38.511 +6.51	14.15 +5.45	84.8 +1.2	usable		+
JL Audio 10W6V2-D4	28.5 +1.8	0.469 +0.09	33.4 +1.4	11.9 +3.2	84.9 +1.3	usable	8 Ω vs 4 Ω: amp load changes	+
Infinity KAPPA PERFECT 10	28.4 +1.7	0.419 +0.04	32.1 +0.1	7.1 -1.6	87.1 +3.5	usable	8 Ω vs 4 Ω: amp load changes · Xmax 7.1 mm < 8.7 mm: lower excursion-limited SPL	+
Infinity 1030W	29.62 +2.92	0.39 +0.01	35.72 +3.72	12.25 +3.55	88 +4.4	usable		+

Compare the closest 3 against the DB10 (OLD) →

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.