Speedwoofer 10S MKII

Features:

400 watts RMS / 1020 watts peak
Cast-frame 10” woofer w/ improved thermal capacity
LFE mode offers deeper extension (22Hz!)
Music mode matches original 10S w/ improved dynamics
Rear-vented Compression Guide™ tuning
Wireless ready. Option to add during checkout*
ALL SPEEDWOOFERS INCLUDE A COLOR-MATCHED GRILLE

Pre-Sale Terms & Conditions:

Payment is required up front.
Limited quantity available
Free shipping within the 48 states!
30-day in-home trial period
A 3.5% cancellation fee will apply to orders cancelled prior to shipping.
$50 flat-rate return fee per Speedwoofer from the 48 states.

NOTE FROM RSL TEAM

Note from RSL Team

Help us to reduce or eliminate the return fee!

Our return fee is in place for the sole purpose of protecting the Speedwoofers’ industry-leading performance and pricing. The cost of one-way shipping for a Speedwoofer ranges from $40 to $150. Double that and add a substantial cost for repackaging and recertification, and it becomes obvious why returns have such an impact. This holds true for ALL consumer-direct products. So please keep this in mind wherever you shop, and support us in the fight to eliminate the Speedwoofer return fee.

The two leading causes of Speedwoofer returns continue to be simple over-ordering and spatial constraints. As such, we would like to ask you to kindly consider the following before ordering:

Measure twice, order once! Please measure your intended subwoofer locations to ensure the Speedwoofer will fit. Then measure again!
Check with your family members! Make sure the Speedwoofer’s aesthetics are acceptable for your home.
Order LESS! That might sound strange, but if you aren’t sure how many Speedwoofers you’ll need, start with just one. We know that the affordable price makes multiples even more compelling. However, we would rather build your system to where it needs to be, than have you pay return fees later.
Ask for guidance! We are always happy to answer questions and make recommendations. No question is too big or small.

We’d love to see the return fees disappear. Together, we can make it happen!

Thank you and best regards,

The RSL Team

Color: Black (Matte)

$449 each

Condition

Factory New A. Just like new B. Minor blemishes C. Noticeable blemishes

View Specifications

Product variants

Speedwoofer 10S MKII

Overview

The Speedwoofer 10S MKII takes the multi-award-winning and revolutionary performance of the original to the next level. A brand new RSL XDR™ series (extended dynamic range) proprietary DSP amplifier design, delivers even more peak and continuous power than ever before – 400 watts RMS with 1020 watts peak. The XDR™ amplifier now offers selectable dual mode DSP for a more optimized movie and music experience. Select movie mode (LFE) to use the MKII’s extra power for deeper bass extension and higher output. Music mode sets the performance to match the original 10S performance but with more power and greater dynamics. A new rear-vented Compression Guide™ tuning achieves the same class leading performance but with reduced air restriction and port noise.

Speedwoofer 10S MKII

A very happy customer

The delivery on my woofer was fast and well packaged. The Speedwoofer works very well with my Magie 1.7s. adding a deep and full bass wile remaining musical.
A very good woofer that performs above it's reasonable price. With a great product, fast delivery and good service, I'm a very happy customer.

Fantastic Sub

So much detail even down to the super low end

Powerful sub, excellent customer service

This was my first "real" subwoofer, and it does not disappoint! Nice, rich bass that complements my music and movies wonderfully. Night and day difference from my prior sub (Polk PSW10). I had started to wonder if my old sub was even turned on. There is no question when this sub is on! I have to give a loud shout-out to the customer service team at RSL. They were extremely patient and generous with me as I worked through exchanging in-wall speakers (due to unfortunate stud and window placement, not RSL's fault at all) and troubleshooting an issue I had with the sub. That leads me to why this is a 4 star instead of a 5 star review. For the price-performance ratio, this truly is a 5 star sub, and I have no regrets buying it or reservations recommending it, it's the best sub I've ever owned. But I do experience some port chuffing in the low 20hz range. At first, this was incredibly noticeable and I didn't know what it was, leading to an RMA (again, awesome customer service who supported me the whole time, even when traveling pushed me outside the standard return window). I had the same experience with the replacement, but after some additional EQing (using the Audyssey app instead of just what was built into my AVR), I got it down to a much less distracting level. I still hear it in particularly demanding movies, but it is minor. I know this is inherent to ported subs and so this is not a knock against the Speedwoofer per se, but I cannot give it 5 stars because for me that would be perfection. Also, I haven't seen any other reviews mention the port chuffing--I bring it up in case someone else does experience it. I ran room correction multiple times (using standard protocols) and Audyssey just caught it that last time (when I used the app), so keep trying if it does happen to you.

These sound fantastic! Can’t do better for the price. I bought 2 and couldn’t be happier.

SPECIFICATIONS

Speedwoofer 10S MKII

Frequency Response:
- MKII/LFE mode (anechoic): 22-200 Hz ± 3db
- MKII/LFE mode (+ room gain): ~18-200 Hz ± 3db (varies with room size)
Woofer:
- 10” 400+ watt rated woofer
- 4 ohm nominal Impedance
- Die-cast aluminum frame
- High-Excursion FEA optimized design motor structure
  - 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
- High yield fatigue-resistant Nomex™ spider
- Kevlar™ reinforced paper cone with full anodized aluminum dust cap
- High durability NBR surround
- High duty cycle flexible tinsel lead wire with strain relief feature
Enclosure:
- Rear-vented Compression Guide™ tuning
- Integrated cross-bracing reinforcement
- ¾” thick MDF woofer panels
- Laminated 1” front woofer baffle
- Removable cloth grille
XDR Series Amplifier:
- 400 watts RMS < 1% THD
- 1020 watts peak
- Selectable dual-mode DSP – LFE/Music
- 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: ~0.5 watts
- Power Input: Selectable 110/230VAC 50-60Hz switch
- Low EMI design, CE & C-Tick compliant
- Line level RCA inputs and RCA pass-through signal outputs
- Speaker level binding post inputs
- Chassis ground screw
- Wireless Pairing Button: Integrated 2.4GHz wireless receiver compatible with RSL AT-3 & AT-4 Transmitters
Crossover Frequency: 40-200 Hz variable
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: 15 1/2” W: 15” D: 15 3/4”
Weight: 40.6 lbs
Shipping Dimensions: H: 20” W: 20” D:20”
Shipped Weight: 48.6 lbs
Fuse: 115V (T5.0AL/250V) – 230V (T2.5.0AL/250V)

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