DLS DLS 1021

10" · 8 Ω · 250 W · 97.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	61 Hz
Qts	0.312
Qes	0.34
Qms	3.73
Vas	35.5 L
Sd	346.4 cm²
Xmax	4 mm
Re	5.45 Ω
Bl	14.1 T·m
Mms	32.3 g
Pe	250 W
Sensitivity	97.4 dB

Alignment hint

EBP	179 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 8.6 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
Oberton 10NMB200	58.67 -2.33	0.316 =	34.93 -0.57	4.25 +0.25	98 +0.6	close		+
SB Audience BIANCO-10MW150	60 -1	0.293 -0.02	34.6 -0.9	4.3 +0.3	97.8 +0.4	close		+
B&C 10 HPL 64	61 =	0.307 -0.01	32 -3.5	3.8 -0.2	97.1 -0.3	close	Xmax 3.8 mm < 4 mm: lower excursion-limited SPL	+
B&C 10NDL64	58 -3	0.3 -0.01	34.5 -1	4.5 +0.5	97 -0.4	close	16 Ω vs 8 Ω: amp load changes	+
RCF MB 10N251 (prodance)	58.9 -2.1	0.33 +0.02	38.8 +3.3	4.8 +0.8	97.3 -0.1	close		+
Faital PRO 10PR310 4 Ohms	55 -6	0.307 -0.01	35.2 -0.3	4.9 +0.9	98.5 +1.1	close	4 Ω vs 8 Ω: amp load changes	+
Fane SOVEREIGN PRO 10-300	58 -3	0.322 +0.01	41 +5.5	4.7 +0.7	97.2 -0.2	close		+
PHL Audio 3020	60 -1	0.337 +0.03	41 +5.5	4.1 +0.1	97.6 +0.2	close		+
Fane SOVEREIGN 10-300	58 -3	0.313 =	43 +7.5	4.8 +0.8	97.5 +0.1	close		+
Eminence DELTA 10B	65 +4	0.33 +0.02	36 +0.5	3.5 -0.5	98 +0.6	close	16 Ω vs 8 Ω: amp load changes · Xmax 3.5 mm < 4 mm: lower excursion-limited SPL	+

Compare the closest 3 against the DLS 1021 →

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.