Peerless CSX 257 H

10" · 8 Ω · 200 W · 89.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	10"
Impedance	8 Ω
Fs	22.6 Hz
Qts	0.346
Qes	0.4
Qms	2.56
Vas	144.4 L
Sd	330 cm²
Xmax	9 mm
Re	5.5 Ω
Bl	10.1 T·m
Mms	52.4 g
Pe	200 W
Sensitivity	89.8 dB

Alignment hint

EBP	57 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 45.5 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
Peerless 850146	22.6 =	0.346 =	144.4 =	7.5 -1.5	89.8 =	close	Xmax 7.5 mm < 9 mm: lower excursion-limited SPL	+
Peerless 831727	22.3 -0.3	0.332 -0.01	136.2 -8.2	9 =	89.7 -0.1	close	110 W vs 200 W: lower power handling	+
Audiotechnology 10A7725KAP	23 +0.4	0.41 +0.06	139 -5.4	8.6 -0.4	89.5 -0.3	close	Xmax 8.6 mm < 9 mm: lower excursion-limited SPL	+
Scan-Speak 25W/8567-SE	22 -0.6	0.367 +0.02	159 +14.6	7.5 -1.5	89.4 -0.4	close	150 W vs 200 W: lower power handling · Xmax 7.5 mm < 9 mm: lower excursion-limited SPL	+
Accuton AS250-8-552 v2018	22 -0.6	0.353 +0.01	119 -25.4	9 =	87.6 -2.2	close		+
Accuton AS250-8-552	20 -2.6	0.327 -0.02	159 +14.6	9 =	87.6 -2.2	close	16 Ω vs 8 Ω: amp load changes	+
Focal 11V 7511	27 +4.4	0.33 -0.02	128.5 -15.9	9 =	91.5 +1.7	close		+
Audiotechnology 10B772510KAP	25 +2.4	0.415 +0.07	128 -16.4	8.6 -0.4	89.7 -0.1	usable	150 W vs 200 W: lower power handling · Xmax 8.6 mm < 9 mm: lower excursion-limited SPL	+
SEAS W26FX001	20 -2.6	0.349 =	162 +17.6	7 -2	88 -1.8	usable	150 W vs 200 W: lower power handling · Xmax 7 mm < 9 mm: lower excursion-limited SPL	+
SB Acoustics SB29NRX75-6	21 -1.6	0.356 +0.01	102 -42.4	11 +2	88.7 -1.1	usable		+

Compare the closest 3 against the CSX 257 H →

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.