MCM Electronics 55-2981

10" · 8 Ω · 70 W · 91.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	41.8 Hz
Qts	0.54
Qes	0.655
Qms	3.08
Vas	58.1 L
Sd	363 cm²
Xmax	3.9 mm
Re	6.3 Ω
Bl	10.8 T·m
Mms	46.1 g
Pe	70 W
Sensitivity	91.1 dB

Alignment hint

EBP	64 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 81.3 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
Tannoy DC 2513	42.4 +0.6	0.544 =	58 -0.1	3 -0.9	90.7 -0.4	close	30 W vs 70 W: lower power handling · Xmax 3 mm < 3.9 mm: lower excursion-limited SPL	+
Monacor SP-252E	42 +0.2	0.503 -0.04	57 -1.1	4 +0.1	93.7 +2.6	close	4 Ω vs 8 Ω: amp load changes	+
Eminence EMINATOR 2010	41 -0.8	0.582 +0.04	61.4 +3.3	5 +1.1	93.9 +2.8	close	4 Ω vs 8 Ω: amp load changes	+
Focal 10P08 vp	43.2 +1.4	0.56 +0.02	65 +6.9	5.5 +1.6	93.9 +2.8	close		+
Cobalt CS 10 SCV	34 -7.8	0.504 -0.04	56 -2.1	4.3 +0.4	91.7 +0.6	close	4 Ω vs 8 Ω: amp load changes	+
Artech SPC-254	38.5 -3.3	0.536 =	49 -9.1	5.3 +1.4	88.3 -2.8	close		+
Beyma 10BR60 STUDIO	42 +0.2	0.467 -0.07	47 -11.1	3.6 -0.3	90.4 -0.7	usable	Xmax 3.6 mm < 3.9 mm: lower excursion-limited SPL	+
Dayton Audio PA255-8	46.4 +4.6	0.484 -0.06	59 +0.9	5 +1.1	94.6 +3.5	usable		+
Realistic 40-9006	39 -2.8	0.452 -0.09	62 +3.9	6.7 +2.8	91.8 +0.7	usable		+
Ciare HX255	43 +1.2	0.577 +0.04	75.9 +17.8	4.8 +0.9	93.2 +2.1	usable		+

Compare the closest 3 against the 55-2981 →

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.