RCF EVOX J11 Portable Column Speaker (White) - 12in
SKU: 35989730477

RCF EVOX J11 Portable Column Speaker (White) - 12in

$1430.55 $1589.50
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Description

RCF EVOX J11 Portable Column Speaker (White) - 12inEVOX J11 is an active, three way portable column system designed for maximum clarity and power in a compact format. A 1. 75 compression driver coupled with a 120 40 True Resistive Waveguide ensures wide, consistent coverage, while 12 x 3 full range transducers and a high power 12 woofer in a bass reflex enclosure deliver articulate mids and deep, controlled lows. Driven by a 3500W onboard dual channel Class D amplifier, EVOX J11 delivers an impressive

EVOX J11 is an active, three-way portable column system designed for maximum clarity and power in a compact format. A 1.75” compression driver coupled with a 120° × 40° True Resistive Waveguide ensures wide, consistent coverage, while 12 x 3” full-range transducers and a high-power 12” woofer in a bass-reflex enclosure deliver articulate mids and deep, controlled lows. Driven by a 3500W onboard dual-channel Class-D amplifier, EVOX J11 delivers an impressive 132 dB Max SPL output. Part of the EVOX J Series, it incorporates RCF’s tour-grade technology into a sleek, unobtrusive package that delivers crystal-clear vocals, natural musical response, and effortless deployment for bands, DJs, and live performers.

EVOX J11 is an active, three-way portable column system designed for maximum clarity and power in a compact format. Neutral and minimal, EVOX J11 stays out of the spotlight and simply delivers. Whether used in corporate spaces or at a party, the sound is clean, with high dynamics, vocal clarity, and a fast, controlled low end for both sitting and standing audience. Free-standing elegance, quick setup, and power at the highest level.

3500 W Up to 2.5X More Power

The new generation 3500 W Class-D two-channel amplifier delivers up to 2.5X more power than the previous architecture, delivering extremely high sound pressure levels with ultra-fast attack, realistic transient response, and minimal thermal buildup.

Highly energy-efficient, the J11 requires no cooling fan. The amplifier is mounted on a solid aluminum heat exchanger at the rear of the unit and has no moving parts. Mechanically coupled to the internal frame, the amplifier is securely braced within the cabinet for long-term reliability.

The input stage features a new low-distortion design with an advanced safety limiter that preserves the input signal's character at any level. EVOX J11 amplifier is designed in accordance with EN 62368-1 for maximum safety and feature a switch-mode power supply (SMPS) that combines high efficiency with minimal weight.

True 3-Way Design
Neodymium compression driver (1.75” voice coil, Kapton dome) with a True Resistive Waveguide (TRW) for a resonance-free load and constant, 120° X 40° coverage.
The forward radiation of the array of 12x3” neodymium drivers, combined with the centered waveguide, delivers a balanced point-source response.

12” RCF transducer provides deep, controlled low frequencies, ideal for bass-heavy music and high-energy performances.

SUB AX ACE Presets for EVOX J
When extended, impactful low-end is required, simply add an RCF subwoofer. ACE-enabled models, starting from the SUB AX Series, include dedicated integration presets for EVOX systems, ensuring perfect tuning at the touch of a button. RCF’s Advanced Crossover Engine (ACE) precisely adjusts time delay and phase to optimize power and impact of the system.

Quick Setup. Ready to Play.
Available in black or white, EVOX J11 integrates all required connections for fast setup. Despite its power and size, its sleek design remains unobtrusive and neutral, blending into any environment. The included padded carrying bag for the two-piece column array makes moving the system effortless.

Ready for the Road
Every EVOX system includes a padded column transport bag for essential protection. To complete your setup, add an aluminum pole extension for quick, flexible height adjustments (available in half- and full-height options). For enhanced transport and storage, choose the optional protective subwoofer cover or the trolley-style cover with wheels for easy mobility. 

Acoustical specifications

  • Frequency Response: 37 Hz - 20000 Hz
  • Max SPL @ 1m: 132 dB
  • Horizontal coverage angle: 120°
  • Vertical coverage angle: 40°

Transducers

  • Compression Driver: 1 x 0.75'' neo, 1.75'' v.c
  • Fullrange: 12 x 3.0'' neo, 1.0'' v.c
  • Woofer: 1 x 12'', 2.5'' v.c

Input/Output section

  • Input signal: bal/unbal
  • Input connectors: Combo XLR/Jack
  • Output connectors: XLR
  • Input sensitivity: +4 dBu

Processor section

  • Crossover Frequencies: 160 Hz/1800 Hz
  • Protections: Thermal, RMS
  • Limiter: Soft Limiter
  • Controls: Volume, Presets: LINEAR/LIVE, CLUB, VOICE

Power section

  • Total Power: 3500 W Peak
  • High frequencies: 1500 W Peak
  • Low frequencies: 2000 W Peak
  • Cooling: Convection
  • Connections: Powercon TRUE1 TOP IN/OUT

Standard compliance

  • Safety agency: CE compliant

Physical specifications

  • Cabinet/Case Material: PP Composite
  • Handles: 1 Top
  • Pole mount/Cap: Quick-fit socket
  • Grille: Steel
  • Color: Black, White - RAL 9003

Size / Weight

  • Height: 2285 mm / 89.96 inches
  • Width: 400 mm / 15.75 inches
  • Depth: 460 mm / 18.11 inches
  • Weight: 29 kg / 63.93 lbs
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35989730477

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4.7 ★★★★★
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Product Reviews
C
Computer
Chelsea, US
★★★★★ 4
Easy to assemble, does the job, material is shiny nylon and shows creases, minor defects, sloppy
Size: 3 Panel 12FT W, Size: 3 Panel 12FT W
The Siebwin room divider is a good idea, and for the price, it mostly delivers on the intended functionality. I ordered the 12 foot, 3-panel version mainly to hide an unfinished basement storage area that had become an eyesore. It works well for that purpose and gives the space a cleaner appearance without spending the kind of money that more decorative dividers or custom partitions cost. If you need something temporary, portable, or mainly functional, this is a viable option. There are a few limitations that became obvious during setup and use. The first thing I noticed was that the weld quality on some of the metal poles is fairly sloppy. Once the cover is installed, you do not really see it, but up close, it does not look especially refined or professional. The blackout material also is not a matte canvas style fabric as I expected. It has more of a shiny nylon appearance, and the creases are fairly visible. Being that it’s more of a nylon, I’d be hesitant to try steaming it to remove the creases. However, the creases do not matter if you are using it in a basement, dorm, or shared room, but for photography, video work, or a professional office setting, the appearance could be disappointing. The fabric is thick enough, though. It blocks visibility well enough, but strong light behind it still shows through to some extent, nothing deal-breaking. Also, my fabric appeared to be slightly defective. The hook and loop strip on one of the bottom sections was off-center and couldn't be totally attached because it was lined up with one of the legs. I originally hoped to use this as a video backdrop, but I will probably end up replacing the fabric with a proper green screen or canvas material while continuing to use the frame itself. For now, it does a good job of covering my basement junk. Assembly was actually easier than I expected and took roughly 15 to 20 minutes. The longer vertical poles are tethered together similarly to tent poles, which made setup straightforward and fairly intuitive. The shorter horizontal pieces slide and snap together to the top and bottom of the vertical assembly. After each section is assembled, the divider panels connect together with metal plates and two knurled screws (at the top and bottom), so no tools are really required. A few screws were difficult to start because paint had gotten into the threads, but once they caught, they tightened down normally. The feet install with similar knurled fasteners and help keep the divider reasonably stable. One thing to watch for during setup is the fabric orientation. There is one arrow indicator in the middle of the fabric to indicate up. However, if you need another indicator, the smaller hook and loop strip goes on the bottom while the longer strip goes on top. I realized mine was upside down right before finishing and had to redo it. I wasn't difficult to redo, despite the defect in mine. The overall design is practical and easy to move around. I do like that the panels can fold and bend into different shapes depending on the space. The widened feet help stability, although when trying to stretch the fabric tight, I noticed the poles sometimes wanted to overlap slightly at the joints. Tightening everything helped somewhat, but it still happened occasionally. The divider feels adequate for normal indoor use, though I would not expect premium durability or luxury-level fit and finish at this price point. The entire device can also be easily disabled and stored in a tote if you need it completely out of the way. It comes with assembly instructions, but even if you didn’t have them, it’s easy to build without them (save a mistake or two). In terms of value, I think the Siebwin divider mostly matches its price. Around $100 gets you a large freestanding partition with decent usability and easy assembly, but there are compromises in materials, appearance, and refinement. The defects are also off-putting, but hopefully you won't have them. Higher-end room dividers can easily cost two or three times more, so some of the tradeoffs are expected. I also noticed cheaper alternatives online, but based on the quality here, I suspect those would probably have even more issues. For practical home use, temporary privacy, hiding storage areas, or separating shared spaces, this is a good option as long as expectations stay realistic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
T
Trendy Tales
Fort Morgan, US
★★★★★ 3
Works well but takes up more space than expected
Size: 2 Panel 8FT W, Size: 2 Panel 8FT W
This room divider does the job for creating a little extra privacy and was easy enough to set up. The panels feel decent quality and the wider feet help keep it more stable than some cheaper screens I’ve tried. My only issue is that it takes up a bit more room than I expected, especially with the feet sticking out. It’s still portable and folds away nicely, but definitely measure your space first. Overall it works well for separating a room or blocking off an area temporarily. i wish it came in other colors
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
K
Katrina Rhodes
Chelsea, US
★★★★★ 5
Nice divider, serves it's purpose well!
Size: 3 Panel 12FT W
This room divider worked out very well for what I needed. I wanted a simple way to create a little more privacy and separation in a larger room without doing anything permanent, and this divider was an easy solution. The panels provide good coverage, and the black color gives it a clean, modern appearance that blends in nicely with different décor styles. Assembly was fairly straightforward, and once set up, the wider feet helped keep the divider stable on the floor. I was especially happy with how flexible the panels are to arrange. You can keep it mostly straight, angle it around furniture, or create a more enclosed private space depending on the layout you need. The material allows light to filter through slightly while still offering a noticeable sense of privacy. I’ve used it for separating a workspace area, but it would also work well in bedrooms, apartments, dorms, studios, or shared living spaces. Another plus is that it can be folded and moved without too much effort when you want to change the setup. Overall, this divider delivers a good balance of functionality, portability, and appearance. It’s a practical option for anyone needing temporary room separation without installing permanent walls or curtains.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
J
Jamie K.
Alexandria, US
★★★★★ 5
Perfect for Adding Privacy to a Piano Studio
Size: 2 Panel 8FT W, Size: 2 Panel 8FT W
I Ordered the 2 Panel version which is way too big for my needs... that's on me. So keep in mind that the picture shows a fabric made for two panels only being used on one and hence it is not pulled tight; it would pull tight and not be so wrinkly if it was set up properly as two panels. The metal pools that make up the panels seem to be well made, stable, and of good quality. They were very easy to put together and they stand up tall with plenty of height. The appearance of it with the fabric on it isn't as elegant as it could be, but it still looks good enough. The material is plenty solid, not allowing light through it, and thereby making a solid barrier. I am using it to block the view out the studio door when a student is sitting at the piano to avoid distractions from the hallway. It will allow a student to enter the studio with our distracting the student who is at the piano.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
J
Just Me
Pawtucket, US
★★★★★ 5
Room Divider That Gives Instant “This Is a Separate Space Now” Energy
Size: 3 Panel 12FT W
The Siebwin 3 Panel Folding Privacy Screen is surprisingly effective at changing the feel of a room without requiring construction, commitment, or somebody yelling about load bearing walls. The 12 foot width gives a substantial amount of coverage, making it useful for creating privacy, dividing open areas, blocking visual clutter, or setting up temporary sections within larger rooms. This saved us a ton of time and money in our new studio and enabled us to create a kitchen and office in one room. The wider feet make a huge difference because flimsy room dividers that collapse every time someone exhales too aggressively are deeply annoying. This one feels more stable and grounded once positioned. The folding design makes it easy to move around or adjust depending on the space, and it folds down relatively compactly when not in use. It is basically the introvert curtain wall of dreams. The material has a clean, neutral look that blends well into different room styles without screaming “temporary office cubicle panic.” It works well for apartments, studios, shared spaces, dressing areas, or simply hiding the mountain of chaos you swear you are going to organize tomorrow. Practical, portable, and refreshingly easy to use without turning setup into a three hour emotional event.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026

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