Altec 605 A

15" · 16 Ω · 35 W · 97.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	16 Ω
Fs	30.3 Hz
Qts	0.248
Qes	0.27
Qms	3.01
Vas	405.8 L
Sd	825.8 cm²
Xmax	2.7 mm
Re	9.3 Ω
Bl	20.6 T·m
Mms	65 g
Pe	35 W
Sensitivity	97.5 dB

Alignment hint

EBP	112 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 56.9 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
Davis 38RCA15	29 -1.3	0.24 -0.01	373 -32.8	5 +2.3	98.2 +0.7	close	8 Ω vs 16 Ω: amp load changes	+
Eminence KAPPA 15C	31 +0.7	0.25 =	329.9 -75.9	2.4 -0.3	98.1 +0.6	close	4 Ω vs 16 Ω: amp load changes · Xmax 2.4 mm < 2.7 mm: lower excursion-limited SPL	+
Monacor SP-385PAX	30 -0.3	0.285 +0.04	365 -40.8	4.5 +1.8	98 +0.5	close	8 Ω vs 16 Ω: amp load changes	+
Supravox 400 GMF PRO	32 +1.7	0.263 +0.02	370 -35.8	4.8 +2.1	99.4 +1.9	close	8 Ω vs 16 Ω: amp load changes	+
Beyma 15 GI-100	33 +2.7	0.243 -0.01	430 +24.2	4 +1.3	101 +3.5	close	8 Ω vs 16 Ω: amp load changes	+
Iconic Speakers 704-8A	30.9 +0.6	0.262 +0.01	463 +57.2	5.1 +2.4	99.7 +2.2	close	8 Ω vs 16 Ω: amp load changes	+
Altec 515-8LF	27.4 -2.9	0.255 +0.01	470.1 +64.3	5.1 +2.4	98.4 +0.9	close	8 Ω vs 16 Ω: amp load changes	+
Great Plains Audio 515-8LF GPA	27.4 -2.9	0.255 +0.01	470.1 +64.3	5.1 +2.4	98.4 +0.9	close	8 Ω vs 16 Ω: amp load changes	+
Altec 4156-8A	29 -1.3	0.28 +0.03	353.7 -52.1	4.3 +1.6	98 +0.5	close	8 Ω vs 16 Ω: amp load changes	+
Supravox 400 GN-B	28.5 -1.8	0.272 +0.02	450 +44.2	5 +2.3	98.6 +1.1	close	8 Ω vs 16 Ω: amp load changes	+

Compare the closest 3 against the 605 A →

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.