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14

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. A REL will take advantage of physics and room acoustics to provide 
deep pressurization as no traditional subwoofer can. It is important that you bring to the set-up process a 
willingness to do things a little differently in order to obtain these superior results. The end result of your 
labors will be an utterly seamless integration of true deep bass to a sound system, regardless of the main 
speakers’ low bass capability.

Basic set-up should take no more than ten to fifteen minutes to accomplish once connected.

Two Things Before You Begin 
1    It is helpful to know that you will almost always connect the REL to the input on the rear panel labeled 

“HIGH-LEVEL INPUT.” This connection is made using the supplied 32’ 10” (10 meters) cable, the bare 
leads of which connect to the speaker output terminals of the power amplifier. The easy and foolproof 
connection at the REL is done with a Neutrik® Speakon® connector. The purpose of connecting to the 
speaker output terminals is one of the unique secrets of REL’s success. By connecting to the High Level  
input on the REL from the amplifier, you build forward the sonic signature of your main system, including  
the tonal balance and timing cues of the entire electronics chain. In this way, the REL is fed the exact 
signal that is fed to the main speakers.

2    When possible, the REL should be placed in one of the corners behind the speakers. Remember, we are 

dealing with true LOW bass pressurization with RELs. Low bass pressurization below 40Hz is best derived 
from corner placement, where the most linear and efficient low bass can be produced because the  
subwoofer is able to take advantage of the tangential (corner-to-corner) axis which is typically the  
longest axis in a room.

Summary of Contents for G1 Mk II

Page 1: ......

Page 2: ...Operating Instructions for the G1 Mk II Sub Bass System...

Page 3: ...n 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...

Page 4: ...at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with a cart stand tripod bracket or tab...

Page 5: ...completely disconnected from the power input the mains plug of the apparatus shall me disconnected from the mains An appliance with a protective earth terminal should be connected to a mains outlet wi...

Page 6: ...sol e tension dangereuse l int rieur de l enceinte du produit qui peut tre d une ampleur suffisante pour constituer un risque d lectrocution pour les personnes Le point d exclamation dans un triangle...

Page 7: ...au des fiches des prises de courant et le point de sortie de l appareil 11 Utilisez uniquement des fixations accessoires sp cifi s par le fabricant 12 Utilisez seulement avec un chariot stand tr pied...

Page 8: ...15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference...

Page 9: ...he speed clarity and deep bass of the original and adds significant improvements in sheer output scale richness and the dynamic ability to track large scale pieces with greater tactility and ease We i...

Page 10: ...k Speakon Used to connect to the main front amplifier speaker terminals 8 High Level Output Neutrik Speakon Used to connect or daisy chain another REL G1 Mk II in tandem 9 Power On Off Switch Use to t...

Page 11: ...10 8 9 10 1 2 3 4 5 6 7 1 2 3 4 5...

Page 12: ...only the required 120Hz fourth order filter Low Level Input The RCA inputs allow for conventional connection from a preamplifier and should be used in the rare event that a high level connection prov...

Page 13: ...it by setting the SECURITY switch to UNLOCK and turning one of the knobs If the batteries are installed properly you will see one of the red LEDs on the remote control s front panel illuminate Replace...

Page 14: ...rried 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 sys...

Page 15: ...ings Before You Begin 1 It is helpful to know that you will almost always connect the REL to the input on the rear panel labeled HIGH LEVEL INPUT This connection is made using the supplied 32 10 10 me...

Page 16: ...000 ohms in effect producing NO additional load on the rest of your system The standard high level hook up procedure is attach the red wire to the amplifier s right positive speaker output terminal a...

Page 17: ...your dealer should there be any questions concerning this or any other hookup procedure NOTE G1 Mk II models are equipped with internal circuitry to allow connection to many Class D digital amplifiers...

Page 18: ...e positive speaker terminal of the corresponding amplifier channel In some instances this will result in exceptionally high gain output from the RELs If it seems simply too high in gain please remove...

Page 19: ...ed cable red yellow paired together to the positive centre channel speaker terminal If connecting a REL as a dedicated rear channel sub connect the black wire of the REL to either the left rear or rig...

Page 20: ...he longest therefore lowest frequency bass waves 1a Stereo Set Up of G1 Mk II see page 20 through 23 for Stereo Set Up procedure When this step has been completed proceed to Number 2 immediately below...

Page 21: ...s 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 With the R...

Page 22: ...proper crossover point and volume setting will increase overall dynamics allow for extended bass frequencies and improve soundstage properties Note volume adjustments may need to be made to offset th...

Page 23: ...corners of the room carefully toed in and placed per normal guidance in this manual Connect each sub to the speaker terminal outputs based on the following diagrams for standard stereo amp non balance...

Page 24: ...unfamiliar with standard REL set up procedure for gain phase and crossover settings see page 14 thruogh 18 for Standard Set Up procedure 2 Carefully fine tune the position of the sub in its recommend...

Page 25: ...Thus a stack of G1 Mk II can be connected using only one high level main cable from power amp to REL stack In a 1 film sound configuration each channel will require a single main 1 cable as well but a...

Page 26: ...locked mode this switch can be rotated using a small slotted screwdriver to select one of sixteen possible address positions 0 through F Once a selection has been made replace the back cover and turn...

Page 27: ...even greater sense of space and impact a second REL connected in parallel to the centre channel will prove to be a dramatic improvement as well And if that is not enough a rear REL both to support the...

Page 28: ...coupled to avoid phase shifts and compromises in its low end performance It is inherently stable and will retain its characteristics over very long periods of time important in a unit designed for an...

Page 29: ...ould be reduced to a safe level Although everything possible has been done to minimize risk of thermal overload failure there can be no defense against those individuals who deliberately abuse the dev...

Page 30: ...C Fault Yes Output Short Yes Mains Input Voltage 220 240 volts 110 120 volts for certain markets Fuses 5 Amp semi delay 230 volts operation 10 Amp semi delay 115 volts operation Dimensions WHD Includ...

Page 31: ...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 net...

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