Great Plains Audio 416-8C GPA

15" · 8 Ω · 150 W · 98.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	22.9 Hz
Qts	0.213
Qes	0.22
Qms	6.7
Vas	693.8 L
Sd	825.8 cm²
Xmax	3.8 mm
Re	6.55 Ω
Bl	16.9 T·m
Mms	66.6 g
Pe	150 W
Sensitivity	98.6 dB

Alignment hint

EBP	104 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 69.2 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
Altec 416-8C v2009	22.9 =	0.213 =	693.8 =	3.8 =	98.6 =	close		+
Altec 416-8B vp_BC	24 +1.1	0.231 +0.02	648.5 -45.3	3.8 =	98.6 =	close		+
JBL 2215H	20 -2.9	0.212 =	736.2 +42.4	4.1 +0.3	97.7 -0.9	close	100 W vs 150 W: lower power handling	+
Altec 416-8B v1	23.6 +0.7	0.22 +0.01	577 -116.8	3.8 =	98 -0.6	close		+
Audax PR380M0	20 -2.9	0.22 +0.01	710 +16.2	3.8 =	97.1 -1.5	close		+
Supravox 400 GMF MK2	22 -0.9	0.206 -0.01	633 -60.8	7 +3.2	97.9 -0.7	close		+
Altec 416-8B	24 +1.1	0.231 +0.02	648.5 -45.3	3.3 -0.5	98.6 =	close	75 W vs 150 W: lower power handling · Xmax 3.3 mm < 3.8 mm: lower excursion-limited SPL	+
EMS B15EX	22 -0.9	0.223 +0.01	791 +97.2	7 +3.2	98.5 -0.1	close	100 W vs 150 W: lower power handling	+
Altec 416-8C	23.9 +1	0.249 +0.04	643.9 -49.9	3.8 =	98.2 -0.4	close		+
EMS B15EX-07.5V	22 -0.9	0.228 +0.02	791 +97.2	7 +3.2	98.4 -0.2	close	100 W vs 150 W: lower power handling	+

Compare the closest 3 against the 416-8C GPA →

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.