Operating Instructions for the 212/SX Sub-Bass System
FCC STATEMENT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) T his device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital Device, pursuant to Part 15 of the FCC Rules.
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.
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 D o not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.
16 the ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, table-cloths, curtains, etc. 17 No naked flame sources, such as lighted candles, should be placed on the apparatus. 18 Attention should be drawn to the environmental aspects of battery disposal. 19 The use of apparatus in moderate climates. 20 Batteries shall not be exposed to excessive heat such as sunshine, fire or the like.
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.
15 10cm distance minimale autour de l’appareil pour une aération suffisante. 16 Il convient que l’aération ne soit pas gênée par l’obstruction des ouvertures d’aération par des objets tels que journaux, nappes, rideaux, etc. 17 Il convient de ne pas placer sur l’appareil de sources de flammes nues, telles que des bougies allumées. 18 Il convient d’attirer l’attention sur les problèmes d’environnement dus à la mise au déchet des piles. 19 Si l’appareil est destiné à être utilisé sous un climat tempéré.
Dear Friend and Valued Customer Dear 212/SX Owner, Thank you for your purchase of our 212/SX. We are well aware that the original 212/SE was held in such high regard that it won the acclaim of essentially every major reviewer and was awarded Most Significant Products of the Past Twenty Years by three publications on two continents. In redefining the 212 platform, we sought to make it better in every way by eliminating minor weaknesses and improving on its considerable strengths.
REL 212/SX Rear Panel Connection Legend 1 H IGH LEVEL OUTPUT: Use Neutrik Speakon connector to connect or “daisy chain” another REL 212/SX in tandem. 2 HIGH LEVEL INPUT: Use Neutrik Speakon connector to connect to the amplifier speaker terminals. 3 X LR/LFE Output: Balanced (XLR connector) version of .1/LFE OUTPUT. For use only with fully balanced cables. 4 X LR/LFE INPUT: Balanced (XLR connector) version of .1/LFE INPUT. For use only with fully balanced cables.
Connectivity and Functionality High Level Input Connections should be made to the same binding post on main amplifier as the main speakers. 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. See Connecting and setting up section below for details on integration with Class D and Differential type amplifier designs.
Connecting Up Always switch off your system before disconnecting any wires. To increase the versatility of connecting up, the 212/SX models have three separate inputs. A high level input socket, a .1/LFE input consisting of both RCA and XLR connectors, and a low level input that includes two RCA sockets for stereo input. This is to facilitate use with both two-channel stereo systems and AV surround sound systems.
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 15Hz. 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.
Connecting and Setting Up High level connection, using the enclosed cable with the Neutrik® Speakon® connector, is always the first choice. This connection can be made without affecting the performance of the amplifier because the REL’s amplifier input impedance is 150,000 ohms, in effect producing NO additional load on the rest of your system.
• For differential (i.e. fully balanced) amplifiers using one REL, simply use the standard connecting scheme with the exception of NOT connecting the black wire to a negative speaker terminal. Instead, it should first be allowed to “float” or hang down without connection to ANY terminal. Should hum occur using this method, please try connecting to an unused RCA connector on the rear of a preamp or amplifier.
• When connecting RELs to Mono Bloc amplifiers (2) RELs, one for each amplifier, must be used. 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, an insider tip is to consider connecting to the rear of the speaker, rather than routing the REL High Level cable all the way back to the amplifier (unless the amplifier is of Class D or Differential output design). Connect the black wire of the REL to the negative centre channel speaker terminal; twist together the red and yellow wires and connect this paired cable (red/yellow paired together) to the positive centre channel speaker terminal.
Low level connection (via RCA connectors) is always an option if high level connection is not possible. When connecting to the low level inputs in a system in which high level connection is not possible, such as if using internally-amplified speakers, connect left and right RCA cables between the LOW LEVEL INPUT jacks of the REL and the left and right channel outputs of your preamplifier. When connecting to a home cinema system where there is a .
4 Corner Fine Tuning: (When Setting up for Stereo 212/SX it is Possible that Placement is Not Corner Loaded and this Step May be Omitted). 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.
Stereo Set-Up of REL 212/SX Stereo Sub-Bass is advised for the fastest, clearest, deep bass—not for more output. Conventional wisdom has it that stereo subs results in between +3 and +6 db additional output depending upon positioning. In and of itself, this is of only passing interest in most instances since even a single 212/SX is capable of profound output. What then, is the point to adding a second stereo sub bass 212/SX? In a word, clarity.
Mono Bloc Mono Bloc Differential Expert Set-Up: Preferable is to bring the subs further out into the room and place them slightly behind and outboard of the main speakers. 1 S et each side up independently. Disconnect the sub that is not being set-up so your complete focus can be given over to the sub that is being set-up.
2 C arefully fine-tune the position of the sub in its recommended location (slightly behind and to the outside of the main speaker) listening for rich powerful room nodes, but focusing on speed and connection with the main speaker. Since there will be a preponderance of output available to a stereo 212/SX owner, focusing on connection with and blending with the main speaker becomes the primary focus, not merely raw output.
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.
Overload Protection All REL Sub-Bass Systems are designed as true sub bass speakers. They are designed to reproduce those exceptionally deep notes that are felt as well as heard. This it will attempt to do at whatever volume level you set. If set too high no damage should result because the built-in electronics will limit the cone movement. This electronic control is called Set-Safe™.
Note: Due to variations in program material, it is impossible to produce a perfectly reliable standby circuit. Bass rich music or effects will consistently trigger our standby circuit whilst content that is low in volume and possesses little or no bass cannot be relied upon to trip the standby function. Alternatively, the user has the option to leave the unit in the normal operation mode at all times by selecting the ALWAYS ON position of the power mode switch.
212/SX Specifications Type: Two front-firing active woofers, One down-firing passive radiator, and one rear firing passive radiator Active Drive Units: 12 in., 300mm long-throw, die cast aluminium chassis Passive Radiator Rear: 12 in., 300mm, die cast aluminium 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.