Tonsil GDN 30/80/2

12" · 8 Ω · 80 W · 93.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	25 Hz
Qts	0.26
Qes	0.291
Qms	2.47
Vas	270 L
Sd	485 cm²
Xmax	6 mm
Re	6.26 Ω
Bl	13 T·m
Mms	50 g
Pe	80 W
Sensitivity	93.5 dB

Alignment hint

EBP	86 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 42.2 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
Fostex FW 305	25 =	0.254 -0.01	254 -16	4.8 -1.2	94.3 +0.8	close	60 W vs 80 W: lower power handling · Xmax 4.8 mm < 6 mm: lower excursion-limited SPL	+
Audiotechnology FLEXUNIT 12B772510	25 =	0.299 +0.04	250 -20	8.6 +2.6	94.3 +0.8	close		+
ATC SB75-314 SC	23 -2	0.25 -0.01	245 -25	5 -1	93.7 +0.2	close	Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
Monacor SPP-300/AD	23 -2	0.265 +0.01	305 +35	5 -1	93.9 +0.4	close	Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
JBL 2214H	23 -2	0.244 -0.02	223.7 -46.3	6.6 +0.6	93.9 +0.4	close		+
Eminence W1238R	21.5 -3.5	0.252 -0.01	236.6 -33.4	8.2 +2.2	93.6 +0.1	close		+
Visaton W300S4	23 -2	0.253 -0.01	300 +30	7 +1	96.4 +2.9	close	4 Ω vs 8 Ω: amp load changes	+
Crites Speakers CW1228	27.7 +2.7	0.277 +0.02	286.6 +16.6	6.4 +0.4	96.3 +2.8	close		+
Scan-Speak 32W/8878T11	21 -4	0.261 =	235 -35	7.5 +1.5	92.1 -1.4	close		+
Philips AD12200/W8	24 -1	0.303 +0.04	287.4 +17.4	5 -1	93.6 +0.1	close	Xmax 5 mm < 6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the GDN 30/80/2 →

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.