Precision Devices PD186

18" · 16 Ω · 700 W · 97 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	16 Ω
Fs	27 Hz
Qts	0.312
Qes	0.326
Qms	7.75
Vas	353 L
Sd	1150 cm²
Xmax	8 mm
Re	5.5 Ω
Bl	22.94 T·m
Mms	184 g
Pe	700 W
Sensitivity	97 dB

Alignment hint

EBP	83 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 85.3 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
PD PD 186	27 =	0.313 =	353 =	10.2 +2.2	96.9 -0.1	close	8 Ω vs 16 Ω: amp load changes	+
Precision Devices PD 186	27 =	0.313 =	353 =	10.2 +2.2	96.9 -0.1	close	8 Ω vs 16 Ω: amp load changes	+
RCF L 18P200N	28 +1	0.306 -0.01	363 +10	9.8 +1.8	97 =	close	8 Ω vs 16 Ω: amp load changes	+
RCF L 18P200N vp tlhp	28 +1	0.306 -0.01	380 +27	9.8 +1.8	97.2 +0.2	close	8 Ω vs 16 Ω: amp load changes	+
DAS Audio S1846 vp2	29.6 +2.6	0.298 -0.01	384 +31	8 =	97.7 +0.7	close	8 Ω vs 16 Ω: amp load changes · 550 W vs 700 W: lower power handling	+
BMS 18N840V2	28.5 +1.5	0.314 =	288 -65	10 +2	97.1 +0.1	close	8 Ω vs 16 Ω: amp load changes	+
RCF LF18G400	28 +1	0.27 -0.04	360 +7	9 +1	97.5 +0.5	close	8 Ω vs 16 Ω: amp load changes	+
RCF LF 18X400 v2	28 +1	0.278 -0.03	340 -13	9 +1	98 +1	close	8 Ω vs 16 Ω: amp load changes	+
RCF LF18X400	28 +1	0.27 -0.04	340 -13	9 +1	97.5 +0.5	close	8 Ω vs 16 Ω: amp load changes	+
RCF LF 18G400	28 +1	0.273 -0.04	360 +7	9 +1	98.3 +1.3	close	8 Ω vs 16 Ω: amp load changes	+

Compare the closest 3 against the PD186 →

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.