Operating Instructions for the 212/SE Sub-Bass System
Caution Marking Explanation The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un-insulated dangerous voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
Important Safety Instructions 1 Read all of these instructions. 2 Save these instructions for future use. 3 Heed all warnings. 4 Follow all instructions. 5 Do not use this apparatus near water. 6 Clean only with automotive polish and micro fiber cloth. 7 Install in accordance with the manufacturer’s instructions. 8 Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.
Warning To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on apparatus. The mains plus is used as disconnect device. The mains plug of the apparatus should not be obstructed OR should be easily accessed during intended use.
Attention Explication Marquage L’éclair avec le symbole de pointe de flèche dans un triangle équilatéral est destiné à alerter l’ utilisateur de la présence de non isolée tension dangereuse à l’intérieur de l’enceinte du produit qui peut être d’une ampleur suffisante pour constituer un risque d’électrocution pour les personnes.
Informations Importantes Relatives a la Securite 1 Lisez attentivement ces instructions. 2 Conservez ces instructions. 3 Respectez tous les avertissements. 4 Suivez toutes les instructions. 5 Ne pas utiliser cet appareil près de l’eau. 6 Nettoyez seulement avec du vernis automobile et tissu microfibre. 7 Installer conformément aux instructions du fabricant.
Avertissement Cet article est lourd. Pour éviter tout risque de blessure, prendre soin lors de la manipulation. L’ appareil ne doit pas être exposé à des éclaboussures et aucun objet rempli de liquide, comme des vases, ne doit être placé sur l’appareil. Les conduites Plus est utilisé comme dispositif de déconnexion. La fiche de l’appareil ne doit pas être obstruée OU doit être facilement accessible pendant l’utilisation.
Welcome to the REL Family Congratulations on your purchase of the 212/SE, a truly formidable instrument for the reproduction of exceptional low bass in very large-scale music and theater systems. 212/SE is the next significant step in REL’s relentless progression towards becoming the best sounding, best-built specialty subwoofer manufacturer extant. REL have always prided ourselves on providing seamless mating of our subwoofer designs with any brand and model of quality loudspeaker the customer chooses.
Wireless Freedom with Zero Compression: Longbow™ Once our team achieved the high standards for performance our customers expect of all REL subwoofers, we turned our attention to connectivity methods. In addition to our comprehensive array of hard-wired inputs, 212/SE benefits from the finest sounding, most natural wireless system available at this time. In order to achieve high quality wireless, the REL team found a new chipset remarkable for its speed and lack of delay.
Beyond 2-Channel Lies Theatre Reference: 212/SE is equipped to allow you to take full advantage of Dolby Digital AC3, DTS, MPEG 2 and any other digital sound format that includes a dedicated Low Frequency Effects (LFE) channel. The dedicated LFE input meets the tough specification laid down for digital 3/2.1 channels, usually known as 5.1. The output is nominally flat from 35 Hz – 90 Hz. It has a dedicated input level control which enables users to set the LFE level independently of the processor.
REL 212/SE Rear Panel Connection Legend 1 V olume Control for HI/LOW Level input: Use to adjust output when using either HI Level or LOW Level input. Do not use both simultaneously. 2 V olume Control for .1/LFE Input: Use to adjust output level when using .1/LFE input from a 5.1 amplifier or processor. 3 Crossover: Used to select crossover frequency. Variable between 30 Hz and 120 Hz.
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Connecting Up Always switch off your system before disconnecting any wires. To increase the versatility of connecting up, the 212/SE models have four separate inputs. A Neutrik® Speakon® socket and three phono sockets. This is to facilitate use with both two-channel stereo systems and AV surround sound systems. The high-level, unbalanced, dual-channel (stereo) input is via a Neutrik® Speakon® connector which is connected to the power amplifier’s left and right channel speaker terminals.
High-Level Input: Connections should be made to the same binding post on main amplifier as the main speakers. Connect as shown above. Red to amplifier main right speaker red terminal, yellow to amplifier main left speaker red terminal and black to amplifier main speaker black terminal, right or left but not both. Plug the Neutrik® Speakon® plug into the HI LEVEL Speakon® socket. .1 Input: This requires a phono-to-phono cable and is a dedicated true .1 channel.
REL Set-Up Made Simple REL products are not traditional subwoofers, but true Sub-Bass Systems. A REL is designed to augment the performance of “full range” speaker systems in order to provide, in certain cases, linear response below 15 Hz. Therefore, for the moment, please set aside everything you’ve been taught about subwoofers and how they are integrated into a stereo or home cinema system. REL Sub-Bass Systems set-up and positioning differs from conventional subwoofers.
• T he standard high-level hook up procedure is: attach the red wire to the amplifier’s right positive speaker output terminal; attach the yellow wire to the amplifier’s left positive speaker output terminal; attach the black wire to whichever of the amplifier’s ground output terminals is convenient; plug the Speakon® connector into the Sub-Bass System’s high-level input. Standard High-level • For differential (i.e.
• If connecting RELs to Mono Bloc amplifers we strongly advocate using (2) RELs, one for each amplifier. Connect the black wire of each REL to the negative speaker terminal of the corresponding amplifier channel; twist together the red and yellow wires of each REL separately and connect each pair to the positive speaker terminal of the corresponding amplifier channel. In some instances, this will result in exceptionally high gain (output) from the RELs.
• If connecting a single REL as a dedicated centre channel sub, please consider connecting to the rear of the speaker, rather than routing the REL High Level cable all the way back to the amplifier. Connect the black wire of the REL to the negative centre channel speaker terminal; twist together the red and yellow wires and connect this pair to the positive centre channel speaker terminal.
When connecting to a home cinema system where there is a .1/LFE channel output, connect a single phono cable between the sub output of the processor/receiver and the .1/LFE input jack on the REL. 1 Positioning: The optimal position for a REL is in one of the corners behind the main speakers.
4 Placement: The next step is to determine precisely how far from the corner the sub should be placed to achieve the most efficient output, as well as the lowest frequency extension. With the REL fully into the corner, and pointing straight out along the diagonal coming out of the corner, continuing to play the music, slowly pull the REL from the corner on the diagonal, equidistant from both side and rear wall.
Theatre Applications For Dolby Digital AC3 or other 5.1 theatre systems, once the standard set-up for two-channel outlined above is complete, the LFE output from the processor or receiver should be connected to the .1/LFE INPUT and appropriate volume adjustments made using the .1/LFE level control. For this configuration, you must set the processor to the “large” or “full range” setting for the left and right speakers in order for the REL to receive the bass signal via the high-level cable.
Technical The 212/SE models use an unusual method of bass loading. They are designed to operate below normal system resonance. This has been achieved without the normal form of bass boost or electronic equalization.
A thermal overload device is fitted to all 212/SE Sub-Bass Systems. If the unit is deliberately overdriven this device will sense the temperature rise and cut the output; recovery time is approximately five minutes. If this happens, it is a warning that the unit is being overdriven and the volume level control should be reduced to a safe level.
The REL 212/SE is shipped in the “ALWAYS ON” mode with the wireless receiver disabled. During initial setup, use the REL this way. If you are using a REL Longbow™ transmitter for initial setup, the wireless switch must be enabled, please follow instructions for pairing included in the REL Longbow™ transmitter manual.
After initial setup, if you wish to employ the standby mode, simply move the power mode switch into the up position to “STANDBY”. Model Power Draw at Standby Power Draw at Standby w/ wireless Power Draw at Idle 212/SE > 0.
212/SE Specifications Type: Two front-firing active woofers, rear and down-firing passive radiator Active Drive Units: 12 in., 300mm long-throw, die cast aluminium chassis Passive Radiator Rear: 12 in., 300mm, die cast aluminum chassis Passive Radiator Down: 12 in.
REL Acoustics Limited North Road, Bridgend industrial Estate . Bridgend, CF31 3TP . United Kingdom Telephone: +44 (0)1 656 768 777 . Fax: +44 (0) 1 656 766 093 Web: www.rel.
