B&C 12 NDL 88

12" · 8 Ω · 700 W · 97.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	51 Hz
Qts	0.274
Qes	0.29
Qms	5
Vas	52 L
Sd	522 cm²
Xmax	5.7 mm
Re	5 Ω
Bl	19.9 T·m
Mms	71.5 g
Pe	700 W
Sensitivity	97.8 dB

Alignment hint

EBP	176 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 9.2 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
B&C 12NDL88	51 =	0.27 =	52 =	8 +2.3	98 +0.2	close		+
Oberton 12MB35	51.43 +0.43	0.267 -0.01	50.07 -1.93	6.75 +1.05	98 +0.2	close		+
Beyma 12MCB700	51 =	0.27 =	59.5 +7.5	7 +1.3	98 +0.2	close		+
Fane Colossus 12MB	55 +4	0.286 +0.01	56 +4	5.5 -0.2	98 +0.2	close	500 W vs 700 W: lower power handling · Xmax 5.5 mm < 5.7 mm: lower excursion-limited SPL	+
Faital PRO 12FH520-4	50 -1	0.268 -0.01	57 +5	5.8 +0.1	99.9 +2.1	close	4 Ω vs 8 Ω: amp load changes	+
B&C 12FL76	50 -1	0.3 +0.03	57 +5	6 +0.3	97.5 -0.3	close	400 W vs 700 W: lower power handling	+
18 Sound 12NTLW2500	52 +1	0.31 +0.04	52.7 +0.7	7.6 +1.9	97.5 -0.3	close	4 Ω vs 8 Ω: amp load changes · 500 W vs 700 W: lower power handling	+
18 Sound 12W750	55 +4	0.27 =	58 +6	7 +1.3	97 -0.8	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 12LW800	52 +1	0.29 +0.02	48 -4	6.5 +0.8	96 -1.8	close	500 W vs 700 W: lower power handling	+
B&C 12CLA76	52 +1	0.25 -0.02	56 +4	5.3 -0.4	98.5 +0.7	close	350 W vs 700 W: lower power handling · Xmax 5.3 mm < 5.7 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 12 NDL 88 →

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.