Conrad DYH-1220 vp

12" · 8 Ω · 120 W · 89 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	33 Hz
Qts	1.64
Qes	2.37
Qms	5.32
Vas	164.9 L
Sd	517 cm²
Xmax	3.9 mm
Re	4 Ω
Bl	4.3 T·m
Mms	52.9 g
Pe	120 W
Sensitivity	89 dB

Alignment hint

EBP	14 · sealed
Sealed Vb (Qtc ≈ 0.71)	Qts too high

EBP < 50: favours a sealed (closed) 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
GRS 12PF-8	35 +2	1.543 -0.1	149.5 -15.4	3.5 -0.4	87.1 -1.9	close	Xmax 3.5 mm < 3.9 mm: lower excursion-limited SPL	+
Goldwood GW‐212/4	35.8 +2.8	1.204 -0.44	166.6 +1.7	3.5 -0.4	88.9 -0.1	usable	4 Ω vs 8 Ω: amp load changes · Xmax 3.5 mm < 3.9 mm: lower excursion-limited SPL	+
Lautsprecher Technik MHB-12	38.2 +5.2	1.107 -0.53	132.7 -32.2	5 +1.1	88.9 -0.1	usable		+
SpeaKa 180/200	28 -5	1.39 -0.25	115.4 -49.5	5.1 +1.2	83.4 -5.6	usable	16 Ω vs 8 Ω: amp load changes	+
Sphynx SP-31-S	41 +8	1.255 -0.38	101 -63.9	3.8 -0.1	88.8 -0.2	usable	Xmax 3.8 mm < 3.9 mm: lower excursion-limited SPL	+
JB Systems SP12/200 vp	42.9 +9.9	1.385 -0.25	107.3 -57.6	3 -0.9	89.5 +0.5	usable	Xmax 3 mm < 3.9 mm: lower excursion-limited SPL	+
Jamo 20325	32 -1	0.849 -0.79	163.4 -1.5	5 +1.1	93 +4	usable	4 Ω vs 8 Ω: amp load changes	+
Sony XS-NW1201	27.5 -5.5	0.928 -0.71	151.21 -13.69	4.15 +0.25	86.7 -2.3	usable	4 Ω vs 8 Ω: amp load changes	+
Goldwood GW-212/8	38.8 +5.8	1.439 -0.2	101.7 -63.2	2.5 -1.4	87.3 -1.7	usable	Xmax 2.5 mm < 3.9 mm: lower excursion-limited SPL	+
Goldwood 212/8	38 +5	1.44 -0.2	101.6 -63.3	2.5 -1.4	86.3 -2.7	usable	Xmax 2.5 mm < 3.9 mm: lower excursion-limited SPL	+

Compare the closest 3 against the DYH-1220 vp →

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.