Ciare M320.5

12" · 4 Ω · 100 W · 95.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	34.4 Hz
Qts	0.43
Qes	0.46
Qms	6.48
Vas	93.2 L
Sd	530.9 cm²
Xmax	4.4 mm
Re	3.15 Ω
Bl	11.6 T·m
Mms	90.8 g
Pe	100 W
Sensitivity	95.2 dB

Alignment hint

EBP	75 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 54.7 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
Beyma 12BR70 vp n1	37.2 +2.8	0.407 -0.02	97.7 +4.5	4.6 +0.2	94.6 -0.6	close	8 Ω vs 4 Ω: amp load changes	+
Ciare HSB322-22	35 +0.6	0.42 -0.01	83 -10.2	7.5 +3.1	95 -0.2	close		+
Beyma 12BR70 vp n4	35.1 +0.7	0.388 -0.04	95.7 +2.5	4.5 +0.1	93.9 -1.3	close	8 Ω vs 4 Ω: amp load changes	+
Beyma SM112/N vp1	37 +2.6	0.433 =	90 -3.2	7.3 +2.9	92.7 -2.5	close	8 Ω vs 4 Ω: amp load changes	+
Beyma SM112/N v2012	43 +8.6	0.434 =	94 +0.8	7.3 +2.9	95.3 +0.1	close	8 Ω vs 4 Ω: amp load changes	+
McCauley 6232	35 +0.6	0.411 -0.02	106.2 +13	8.4 +4	93.6 -1.6	close	8 Ω vs 4 Ω: amp load changes	+
Eminence DELTA 12 LF v1	45 +10.6	0.424 -0.01	95.5 +2.3	4.6 +0.2	96.1 +0.9	close	8 Ω vs 4 Ω: amp load changes	+
Boston Acoustics PRO 12 SLF	30 -4.4	0.448 +0.02	84 -9.2	6.8 +2.4	95.8 +0.6	close	2 Ω vs 4 Ω: amp load changes	+
Davis 31TPA vp nº2 dats v2	46.4 +12	0.437 +0.01	96.4 +3.2	4.4 =	95.8 +0.6	close	8 Ω vs 4 Ω: amp load changes	+
Kartesian WOM300_vDIY	37 +2.6	0.362 -0.07	91.7 -1.5	6.4 +2	94.6 -0.6	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the M320.5 →

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.