The Loudest TL-1121 Subwoofer

Construction:
With such features as an aluminium die-cast basket and a Strontium-Ferrite magnet, be sure to check out the detailed diagram of construction below:

Click HERE to view the speaker construction diagram.

Specifications:

Parameter	Data	Unit	Info
Nom. diameter	12	[inch]	Nominal diameter (30 cm)
Vas	54.957	[Litres]	Equivalent volume
Qts	0.807		Total Speaker Q-factor
Qes	0.905		Electrical Q-factor
Qms	7.339		Mechanical Q-factor
Fs	21.935	[Hz]	Resonance Frequency (Free Air)
Sensitivity	90.659	[dB]	SPL dB at 1W, 1m
Max Power	3000	[W]	Maximum input power
RMS Power	1000	[W]	RMS input power
xmax	20.32	[mm]	Max excursion from centre at normal operation (one way)
Moving mass	278.9	[g]	(Mms) Weight of moving parts
Disp area	0.0434	[m2]	(SD), Effective piston area of cone
Disp Vol	1763.8	[cm3]	Displaced volume = xmax x 2 x SD
Coil diameter	76.4	[mm]	Diameter of the voice coil (Kapton 4-layer - 3")
Cms	0.1888	[mm/N]	The stiffness of the driver’s suspension
Magnet weight	5102.9	[gr]	Weight of the magnet (180 oz)
Re	1.785	[ohm]	DC resistance (per voice coil)
Z	2	[ohm]	Impedance of coil (per voice coil)
L	2.23	[mH]	Inductance of coil (per coil @ 1 kHz)
Bl	27.529	[Tm]	Magnetic strength (Motor force factor)
Recommended sealed enclosure	0.0623	[m3]	(2.2 cubic feet)
Minimum sealed enclosure	0.034	[m3]	(1.2 cubic feet)
Recommended ported enclosure	0.0623	[m3]	(2.2 cubic feet)
Minimum ported enclosure	0.0425	[m3]	(1.5 cubic feet)
Krm	2	[m]
Kxm	2.58	[mH]
Rem	5.31
Erm	0.984
Exm	0.656
P max	3,000	Watts	Maximum peak input power
P rms	1,000	Watts	Maximum RMS input power
Magnet material	High density strontium-ferrite
Cone/dust cap material	Dynaflex
Surround material	Santoprene Rubber
Aluminium shorting ring	Yes
Heat sink	Yes
Mounting depth	282 mm

Click Here For Manual