T3S2-19 – 19"-Megawoofer from Rockford Fosgate

What the cubic capacity means for an engine, the cone area means for a woofer. For both true: Not replaceable, except by more of it.Rockford Fosgate shows off now with a 19 inch model in the Power-T3 series.

T his is a subwoofer. You need more thantwo men to carry the enclosure and the

station wagon, where the giant Rockford woofer takes a seat, is automatically lowered. The woofer itself has more than half a meter in diameter and is - as it should be - almost as deep.His voice coil is the largest that has come across us in the car hi-fi sector, a diameter 5 inches or 127 millimeters results in a fattube. That the woofer, despite the enormous size, looks quite filigree and is still handleable, comes by the neodymium, which was used instead of ferrite.Eight petite pillars of 40 mm diameter and 78mm length are enough to ensureits impressive parameters.In between is plentiful air, so that the view undisturbed falls on the powerful voice coil. The drive is carried out in deviation from the standard design as a push-pull drive, whichis pretty rare on subwoofers.

The T3 has two air gaps, which are defined by upper and lower pole plate, one behind the other on the mile-long voice coil former. Inside there - of course - two voice coils.Since the magnetic field in the lower air gapinevitably is in the reverse polarity to the upper, the lower coil must be wound in opposite directions, so that both coils aredriven in the same direction.The field line profile is the same as a normal drive: upper magnetic pole, upper pole, upper air gap, pole core and then down around through the lower air gap in the lower pole plate back into the magnet.

Single ReviewRockford Fosgate T3S2-19

58 1/2016

Bass is Fun

On the upper floor of the giant basket two widelyspaced spiders are working. In between, the XXL-supply litz wires are laid out.

For the secure routing of the huge swing unitthe T3 has two boardlike spiders, which sit at some distance from each other in the basket. The extremely stable surround takes over quite a bit of the leadership. The cone consists of a reinforcing honeycombstructure made out of ultra stable aramidfiber, sitting in a sandwich between twolayers of glass fiber mats. This cone contributes regardless of its size only a bit weigth to the enormous moving mass. The weight sits rather in the coil former, together with the two giant voice coils.

Lab and SoundOur measurements show a very low natural resonance of 26 Hz, and a very small VAS of 117 liters for this cone area, just feasible for a use in a car.The low Q-factor of 0.33 is ideal for precise vented applications.

Our test enclosure had dinky 245 liters, who wants to have it as small as possible, can start from 150 liters net.The test enclosure delivered a flat frequency response to 20 Hz and of course power without ending. In practical use, the giant Rockford woofer surprised us with a really great sound quality performance. Who ever expects that such a juggernaut is only infernally loud, but is not not a bit precise, is taught better. Infernally loud of course,but in dry bass beats very accurate. The T3 don't need much stroke in everydaylife anyway, even if it's unbearable inside the car, the cone moves moderately. For super-fast top basses the T3 is perhaps not optimal, here one might consider to back him up with closed 10-inchers for the top.A high cut-off is ruled out anyway in such a woofer. But suitably adjusted the Rockford returns an incredible foundation, ultra deep, with almost never-ending power and even crunchy.

SummarySure, the T3S2-19 woofer is not for everyone. And not cheap either. But it's great thatRockford Fosgate nowadays still dares to build something really unreasonable.

slehciM ramlE

20 Hz cut-off frequency?No problem for the T3

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50 0 20 50 100 200 Hz 500

Price approx. 3.000 Euros

Sound 50 % 1+ ■■■■■■

Lab 30 % 1,0 ■■■■■■

Processing 20 % 1,0 ■■■■■■

Sound 50 % 0,9 ■■■■■■

Depth 12,5 % 0,5 ■■■■■■

Pressure 12,5 % 0,5 ■■■■■■

Cleanliness 12,5 % 1,0 ■■■■■■

Dynamics 12,5 % 1,5 ■■■■■■

Lab 30 % 1,0 ■■■■■■

Freq. response 10 % 0,5 ■■■■■■

Efficiency 10 % 2,0 ■■■■■■

Maximum level 10 % 0,5 ■■■■■■

Processing 20 % 1,0 ■■■■■■

Basket diameter 53,3 cmInstallation diameter 45,0 cmInstallation depth 39,8 cmMagnet diameter 20,2 cmEnclosure width 95,0 cmEnclosure height 60,0 cmEnclosure depth 47/67 cmWeight 34,2 kg

Nominal impedance 2 ohmsRdc 1,78 OhmsLe 1,01 mHVoice coil diameter 127 mmCone area 1486 cm2

fs 26,4 HzQms 2,66Qes 0,38Qts 0,33VAS 116,7 lMms 962,5 g

s/gk 68,95 smRN/mm 40,0 smCmT 94,72 l x B

SPL 1 W, 1 m 88 dB

Power recommendation >1000 WTest enclosure BR 245 lReflex port (d x l) 435 cm x 35 cm2

Distributior Audio Design, Kronau0-5649 35270 eniltoH

Internet www.audiodesign.de

„The Mega Woofer par excellence.“

Rockford Fosgate T3S2-19

Rating

Specifications

1,0Price-performance:

very good

Absolute Top ClassTop ClassUpper ClassMiddle ClassEntry level

Rockford Fosgate T3S2-19

Edition 1/2016

591/2016

BEST PRODUCT

1/2016

Absolute Top Class

The neodymium magnets in column shape connect the upper and lower pole. The two blackened coil windings are made of edgewise-wound ribbon wire

The Rockford T3 is an incredible bass monster whose dimensions overwhelm in reality. The bass box is 60 cm high.