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Speedwoofer
12s
16 Hz-200 Hz ± 3db
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*EVERY SPEEDWOOFER COMES STANDARD WITH ITS BLACK OR WHITE GRILLE COLOR*

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Experience everything, sacrifice nothing
The 12S is born from passion, bred with great lineage, engineered to perform, and guaranteed to thrill. After several years in development, the Speedwoofer 12S represents the next tier and evolution of performance to complement the award-winning and undisputed market leader, the Speedwoofer 10S model.
Experience everything, sacrifice nothing
12S white in living room
The 12S is born from passion, bred with great lineage, engineered to perform, and guaranteed to thrill. After several years in development, the Speedwoofer 12S represents the next tier and evolution of performance to complement the award-winning and undisputed market leader, the Speedwoofer 10S model.
12S black in living room
Grab your convenient 12S remote control for instant adjustments on the fly. No need to disturb the movie or fumble through a phone app.
12S remote control
a subwoofer for any room size
award winning performance and value

Customer Reviews

Based on 138 reviews
94%
(130)
5%
(7)
1%
(1)
0%
(0)
0%
(0)
83.1
99.1
M
Michael
Perfect speaker

This speaker sounds perfect. Deep, clear bass that rattles the room when you want it to. I would purchase this speaker again. 10/10.

j
jeff m.
speedwoofer 12s

Delivery time was good and I am very happy with the two 12s speed woofers that I have ordered.

T
Terry S.
So far so good

Better than my SVS SB-1000 Pro, as I was calibrating / running room correction using my Denon AVR receiver. When the test tone hit the subwoofer it sounded like someone was banging on a door, the studs in the closest walls were transmitting the sound of being banged on.That's at 1/2 volume. I laughed a bit every time it happened. It blends in great with my speakers & movies, I'm running Polk Reserve 600 towers, Reserve 300 center channel and Reserve 100 rears.

P
Peter
I wished I got this sooner.

I have been using 2 10inch subs with 50 rms 100 peak and frequency goes down to 35. Got the rsl 12s and its just so much better. Now i have to rewatch movies to see what i have been missing. I am considering gettIng second one in future.

g
greg m.
WOW!

This did not disappoint. I have a very large living room that’s open to the dining room with a vaulted ceiling. And it still rocks this room. Beyond impressed and do not regret my purchase. It’s great for music and movies. Look forward to making my wife mad with a second just so the living room is even on spacing/layout

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Meticulously crafted for excellence
500w
rms
1550w
peak
"...A LOW FREQUENCY MONSTER"
TECHNICALLY SPEAKING...
REFERENCE: Minimal EQ processing, “natural” response for ideal transient performance
MOVIE: Enhanced output between 25-35Hz to augment low frequency content at low levels
MUSIC: Shelved response for extension, but with good upper bass impact
BOUNDARY: “Neighbor friendly”…Reduced lower frequencies to limit rumble through walls
SPECIFICATIONS
  • Frequency Response:
    • Reference Mode (anechoic): 16 Hz-200 Hz ± 3db (SEE GRAPH FOR VARIOUS DSP RESPONSES)
  • Woofer:
    • 12” 500+ watt rated woofer
    • 4 ohm nominal Impedance
    • Proprietary RSL Die-cast aluminum frame with dual spider integration
    • Klippel optimized linear magnet motor and matched suspension
    • High-Excursion FEA optimized design motor structure
      • Integral VC Heat Sink/Inductance Control Sleeve
      • 1008 low-carbon steel motor parts (T-yoke and field plate)
      • Premium grade dual-stacked ceramic magnets
      • Ultra-high Temp (>200° C), Multi-layer Copper Voice Coil
    • Dual-mirrored, High yield fatigue-resistant Nomex™ spiders
    • Integrated Dual Spider spacer clamp ring
    • Kevlar™ reinforced paper cone with full anodized aluminum dust cap
    • High durability NBR surround
    • High duty cycle periodically stitched flexible tinsel lead wire with strain relief features
  • Enclosure:
    • Scratch and fingerprint resistant textured matte finish
    • Front multi-segment LED display/indicator (Volume, Mute, & DSP MODE)
      • Display sleeps after ~10 sec. of inactivity
    • Rear-vented Compression Guide™ tuning with turbulent free slot port
    • Internal structural reinforcement (Side to side, front to back, and top cross-bracing)
    • ¾” thick MDF panels with dado reinforced joints plus corner bracing
    • Laminated 1” front woofer baffle
    • Internally optimized damping
    • Removable cloth grille
  • XDR Series Amplifier:
    • IR Remote Control (Power Toggle, Volume +-, Mute, DSP Mode direct select (Reference, Music, Movies, Boundary)
    • External 3.5mm IR input for wiring external IR sensor (eye)
    • 500 watts RMS < 1% THD
    • 1550 watts peak
    • Patent Pending HSS™ Heat Sink/Shield Technology for greater thermal efficiency and capacity
    • DSP Modes – Reference, Music, Movies, Boundary (Rear LED indicator matches front display)
      • Reference – Minimal EQ processing, “natural” response for ideal transient performance
      • Music – Shelved response for extension, but with good upper bass impact
      • Movies – Enhanced output between 25-35Hz to augment low frequency content at low levels
      • Boundary – “Neighbor friendly”…Reduced lower frequencies to limit rumble through walls
    • Integrated double-precision 56-bit, 50 MIPS DSP processor
    • Intelligent class D topology, >85% Efficiency
    • Signal to noise ratio: >85dB
    • Auto-ON Threshold: 3mV
    • Auto-OFF: ~20 minutes (no signal)
    • Stand-by power consumption: ~1 watt
    • Power Input: Selectable 110/230VAC 50-60Hz switch
    • Low EMI design, CE & C-Tick compliant
    • Gold-plated RCA Line level inputs and RCA High-pass signal outputs (high-pass is adjustable and can be bypassed)
    • Speaker level inputs (Gold-plated, 5-way binding posts)
    • Chassis ground screw
    • USB Power port, easily connect external AR-4 2.4GHz wireless receiver
  • Low Pass Crossover Frequency: 30-250 Hz variable (with integrated bypass switch)
  • Low Pass Crossover Slope: 24 db/oct.
  • High Pass RCA Output Crossover Frequency: 30-250 Hz variable (with integrated bypass switch)
  • High Pass RCA Output Crossover Slope: 24 db/oct.
  • Phase Control: 0 to 180 continuously variable
  • Power Input: 115V, 60Hz, 230V, 50/60Hz AC
  • Feet: Includes 4 rubber feet
  • Dimensions with Feet: H: 22 1/4” W: 18 7/8” D: 22 1/8”
  • Weight: 82 lbs.
  • Shipping Dimensions: H: 29” W: 25” D: 29”
  • Shipped Weight: ~106 lbs.
  • Fuse: 115V (T6.3AL/250V) – 230V (T3.15AL/250V)