The new RC4 Series 3 W-DIM4 is a high-power 4-channel DC dimmer for props, set-pieces, turntables, and more. A genuine Wireless Solution W-DMX radio transceiver is built-in for compatibility with numerous wireless DMX systems from a range of manufacturers.
With super-smooth LED dimming, very high power halogen dimming, hobby servo-motor control, HSL color control, a sophisticated effects engine, and DMX input/output (both wireless and wired, including RDM), a single LumenDimM4 could be used to construct a complete miniature moving light, and is barely larger than a matchbox. RC4 understands the demands facing lighting professionals, propsmasters and special effects gurus in live entertainment and motion pictures.
“Inspired by the Apple iPhone and the Leatherman multitool,
RC4 Series 3 technology delivers unparalleled versatility
to show electricians and propsmasters around the world.”
James David Smith, President and Chief Product Designer
The most powerful wireless dimmer in the W-DIM class, the RC4 Series 3 W-DIM4 provides four dimmers with a total current capacity of 42A — that’s 500W at 12V, 1000W at 24V. The device works from 6VDC all the way up to 35VDC, ideal for use with 30V battery belts common in the film industry. Like all RC4 Series 3 devices, it includes a built-in radio receiver and uses RC4 OneTouch™ for easy assignment of any DMX channel and dimmer curve to any dimmer with a single press of a single button. Device configuration can also be done with Remote Device Management.
Four channels are ideal for Red-Green-Blue (RGB), Red-Green-Blue-White (RGBW) and Red-Green-Blue-Amber (RGBA) LED color-mixing. The RC4 Hue/Saturation/Level (HSL) Color Controller delivers best-in-class color consistency over the entire dimming range, by ensuring precise primary color ratios even at very low dimmer levels using 16-bit (65,536 step) dimming. Unlike single-channel DMX control of color mix from a console, which is limited to 256 steps and becomes heavily quantized at low levels, the RC4 HSL Color Controller maintains high ratiometric precision throughout the dimming range.
The warmth of incandescent lighting has long been favored by lighting designers, and for good reason; natural filament persistence ensures smooth fades even when control resolution is relatively coarse. The LumenDim4 easily drives 500W of crisp 12V halogen lighting. RC4 Digital Persistence™ brings that same pleasing smoothness to LED dimming, with a range of eight persistence periods emulating a variety of halogen lamp sizes. LEDs have never looked this good, and 500W (at 12V) or 1000W (at 24V) of LED light is a lot of lumen intensity.
Many pulse-width-modulation (PWM) dimmers look good to the human eye, but produce banding, blinking, and other anomalies when used with video cameras. For this reason, all RC4 Series 3 dimmers provide multiple PWM frequencies. Low frequencies are most efficient, ideal for high-wattage incandescent lighting. Mid frequencies improve the appearance of LEDs by eliminating visible strobing in human peripheral vision. High frequencies eliminate video artifacts. And finally, supersonic PWM frequencies, though least efficient for power handling, provide PWM dimming without audio interference when used near microphones and electified musical instruments.
Four dimmer outputs also provide an optimal experience with the RC4 Wireless Flkr Effects Engine. Using DMX channels for control, dynamic animated effects are easily and quickly created — this is not a canned effect generator, it is a tool for creating unique looks to suit any need. Effects can also be stored and recalled, and a saved effect can be enabled on power-up. This provides a means of creating and using custom effects without an external DMX controller — perfect for standalone displays in retail, trade shows, and more.
The RC4 Series 3 W-DIM4, and all RC4 Series 3 dimmers, provides a wired DMX data port. In most cases this port is used to output data to nearby fixtures including fog machines, moving lights, and projector dousers. The DMX port can also be configured as a DMX input, allowing the W-DIM4 to be used as a wired dimmer.
With all that’s going on inside RC4 Series 3 dimmers, a means of routing signals within the device is needed. RC4 HotPatch™ is the answer. In the default mode, dimmers are directly controlled by DMX channels they are assigned to; the flicker effects engine and HSL color controller are bypassed. From there, RC4 HotPatch™ provides numerous other configurations, enabling internal processes with signal flow following a variety of paths.
The RC4 Series 3 W-DIM4 includes all RC4 Series 3 Harmonized Design features:
- RC4 OneTouch configuration
- wired and wireless RDM configuration
- 16-bit dimming with multiple PWM frequencies
- RC4 Digital Persistence
- HSL Color Controller
- RC4 Flkr Effects Engine
- DMX data in and out
- RC4 HotPatch
- high efficiency 6V- 35VDC voltage input range
Anderson Powerpole connectors are provided for connection of the power supply (+/-DC IN red/black) and load devices (+/-DimA yellow/grey, +/-DimB yellow/grey, +/-DimC yellow/grey, +/-DimD yellow/grey). The supply powers both the internal electronics and the connected loads. Dimmers switch on the negative side of the circuit, ideal for common-anode (common positive) LED tape. Dimmer output voltage is precisely the DC power input voltage with no appreciable losses within the 42A total power handling limit of the device. When operating at or near the maximum power capacity, Anderson 45A pins must be used at the power input, all wiring must be appropriately sized and in compliance with applicable electrical codes, and external fuses or circuit breakers should be used at the power source and in each individual dimmer circuit.
The DMX miniplug port can be used with a range of RC4 DMX cables, including 3-pin and 5-pin male and female XLR adaptors. The most common adaptor is the RC4DMX5FA with 5-pin female XLR connector.
RC4Magic Series 3 W-DIM4 Specifications
Dimensions: 112mm x 62mm x 31mm
Power Input: 6VDC – 35VDC, 0.4W idle draw, ~87% regulation efficiency, screw terminal connections
Dimmer Outputs: 4 low-voltage DC dimmers, Anderson Powerpole connections, 16-bit resolution PWM (16,384 steps)
Output Power, per Dimmer: 40A non-continuous, 15A continuous
Maximum Total Power Handling: 42A (limited by rating of Anderson power input connectors)
Multiple PWM frequencies: 77Hz (high power), 615Hz (flicker free), 5kHz (artifact free for video), 20kHz (noise free for audio)*
Multiple Dimmer Curves: Non-Dim, Non-Dim Inverted, Linear, Linear Inverted, Inverse-Square-Law (ISL), ISL inverted, servo motor pulse clockwise (CW), servo motor pulse counter-clockwise (CCW)*
RC4 Digital Persistence™: 8 user-selectable persistence periods emulating a range of filament lamps*
Series 3 Versatility: wired and wireless DMX dimming, RC4 Flkr Effects Engine™, RC4 HSL Color Controller, RC4 HotPatch™, extensive wired RDM support*.
Sensors: Input voltage, internal temperature, individual dimmer current draw, total current draw (sum of 4 dimmers)*
DMX Input/Output: RC4 3.5mm mini, USITT DMX512/1990 data, non-standard port, connector adaptors available. Wired RDM E1.20 and E1.37 (dimmer configuration) support*
Wireless DMX Protocol: Wireless Solution W-DMX G4
RF Antenna: RP-SMA external, omnidirectional. Alternate antennas can be used for increased sensitivity and directionality.
* All RDM features are available using a wired DMX connection. Wireless RDM is available as an option, requiring installation of an RDM-capable W-DMX card and an RDM-capable W-DMX transmitter.