O Operating Instructions for the TZERO MKIII Sub-Bass System 1
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.
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. 9 Do not defeat the safety purpose of the grounding-type plug. A grounding type plug has two blades and a third grounding prong. The third prong is provided for your safety. If the provided plug does not fit into your outlet, consult and electrician for replacement of the obsolete outlet.
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. Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.
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.
14 Confiez toute réparation à un personnel qualifié. Une réparation est nécessaire lorsque l'appareil a été endommagé de quelque façon que ce cordon d'alimentation ou la fiche est endommagé, du liquide a été renversé ou des objets sont tombés dans l'appareil, l'appareil a été exposé à rail ou à l'humidité, ne fonctionne pas normalement, ou a été échappé.
Welcome to the REL Family Congratulations on your purchase of a new REL Tzero MkIII. While the Tzero MkIII is one of our most affordable models, it possesses a great deal of the character, unique features and sound quality of our larger and costlier models. While its size suggests something not unlike a multimedia subwoofer designed to, at best, suffer connection to a shoddy computer-based Bluetooth or similar system, the reality is that this is a full, proper REL.
Overview TZERO MKIII Sub-Bass System Many or most loudspeakers emphasize the mid-bass. This is the range from 50 to 90 Hz. We at REL believe this is an incomplete approach and that loudspeakers need to be extended in the lower frequencies for true full range reproduction. All of our designs are true Sub-Bass Systems, meaning they are designed to reproduce very low frequencies (below 30 Hz) that are felt rather than heard.
REL TZERO MKIII Rear Panel Connection Legend 11
1 Volume Control for HI/LOW LEVEL INPUT: Use to adjust output when using either HIGH LEVEL or LOW LEVEL input. Do not use both simultaneously. 2 Volume Control for .1/LFE INPUT: Use to adjust output level when using .1/LFE input from a 5.1/ 7.1 amplifier or processor. 3 Crossover Control: Used to select crossover frequency. Variable between 30Hz and 120Hz.
Connecting Up Always switch your system off before disconnecting any wires. ALWAYS connect using the REL HIGH LEVEL input, unless your system simply cannot accommodate this. While rare, a few esoteric systems, such as those that deliver a pure digital signal to active speakers, preclude this possibility. To increase the versatility of connecting up, the TZERO MKIII has three separate inputs: A Neutrik Speakon socket and two phono sockets.
bass from the main system is carried forward into the Sub-Bass System. This is a very important point and together with REL’s Natural RollOff™ circuitry, ensures far superior system integration of the Sub-Bass System with the main system. 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.
REL Set-Up Made Simple REL products are not traditional subwoofers, but are 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 12 Hz. Therefore, for the moment, set aside everything you’ve been taught about subwoofers and how they are integrated into a stereo or home cinema system. The set-up and positioning of REL Sub-Bass Systems differs from that of conventional subwoofers.
• The 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.
• 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 enable 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.
the REL and either the left or right channel output of your preamplifier. Because virtually all sub-50Hz bass information is mono, there is no need to connect both left and right channels. When connecting to a home cinema system where a .1/LFE channel output is present, connect a single phono cable between the sub output of the processor/receiver and the .1/LFE input jack on the REL. Positioning: The optimal position for a REL is in one of the corners behind the main speakers.
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 continuing to play the music, slowly pull the REL from the corner on the diagonal, equidistant from both side and rear wall.
REL Theater Reference™ Home Cinema Applications For Dolby Digital AC3 or other 5.1 theater 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.
3 Connect to the center channel a third REL using ONLY the HIGH LEVEL connection. This may be easily accomplished by connecting directly to the connection terminals on the rear of the center channel speaker. To do so, first twist the red and yellow leads together and connect to the positive terminal, then connect the remaining black lead to the negative (black) terminal on the rear of the speaker.
drive unit will benefit from an initial period of carefully controlled use. Possible damage may be sustained by running in the unit at too high a volume setting over an extended period. On the other hand, by taking a little care over this initial period, about 24 hours of actual use, a longer life with an eventual higher potential performance is assured. Care and Polishing The cabinets are best maintained by using a light automotive spray-on wax and a micro fiber cloth.
normal operation. By using the standby mode, you can ensure that there is no unnecessary power draw when the unit is not in use. Alternatively, the user has the option to leave the unit in the normal operating mode at all times by selecting the “ALWAYS ON” position of the power mode switch. In this mode, the unit will not enter standby regardless of whether or not there is activity on the input signal.
Specifications TZERO MKIII Type: Drive Unit: Lower Frequency Response: Input Connectors: Input Impedance: Gain Control Range: Power Output: Phase Switch: Amplifier Type: Protection System Fully Electronic SET-SAFE: D.C. Fault: Output Short: Mains Input Voltage: Fuse: Dimensions (WHD): Sealed, down-firing active woofer 6.5in., 165mm long-throw aluminium cone, steel chassis 37 Hz at -6 dB in room HIGH LEVEL Neutrik Speakon, LOW LEVEL single phono, LFE phono HIGH LEVEL: 150k, Low Level: 10k, .
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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.
