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BG Corp 2005

5

General considerations

The R-800, R-400C and R-88Sub are high output, full range systems that are designed
to be installed in the wall.  If  there  is  a  room  adjacent  to  the  wall  where  the system  is
installed,  low  frequency  bass  sound  will  be  heard  there  due  to  natural  sound
transmission.  The  Installer  should  take  the  utmost  care  with  the  wall  preparation  to
reduce natural vibrations. See details in the Installation section.

Proper  Hookup: 

All  Radia  in-wall  speakers  have  binding  post  connections  clearly

marked “+” and “ –“.

Connect Red speaker terminal post to positive (+) amplifier post.
Connect Black speaker terminal post to negative (-) amplifier post.

The R-800 must be bi-amplified by running separate dedicated loudspeaker wires from
BGA-2500 amplifier to  its  woofer section  and  from  your  power  amplifier  to  ribbon  line
array section of this speaker system.

Break-In  Times: 

Typically  a  BG  loudspeaker  requires  not  less  than  48  hours  of

operation  at  moderate  sound  level  before  reaching  its  optimum  sound  quality.  This
improvement may be subtle yet noticeable for a trained listener. Note: Do not play your
loudspeakers excessively loud to try to accelerate this process.

Amplifier: 

BG  loudspeakers  are  extremely  accurate  and  deliver  a  high  degree  of

detail  and  resolution  at  low  distortion.  Use  an  SPL  meter  to  verify  playback  levels.  A
good  100-250  watt  per  channel  amplifier  or  receiver  is  needed  to  deliver  adequate
power for a typical room size. Your authorized BG Dealer can recommend an amplifier
and other components and accessories best suited to your needs.

General Information

Summary of Contents for Radia R-88Sub

Page 1: ...Owner s Manual and Setup Procedures Radia Series R 800 R 400C R 88Sub BGA 2500 The Power of Clarity ...

Page 2: ...ance home theater applications The line is comprised of models R 800 R 400C R 88Sub The BGA 2500 amplifier is used to drive the R 88Sub and active woofer section of R 800 NOTE This installation manual is primarily written for the professional custom installer who will have the necessary experience for a perfect installation and be familiar with local electrical and construction codes CONTENTS Page...

Page 3: ...pping materials may be required in the unlikely event your loudspeakers need to be moved or shipped to our service center at BG Cleaning Use a wax free cleaning substance only i e Pledge with a soft dry polishing cloth not a paper based chamois DO NOT spray any cleaning solutions directly on the grill as it can clog its perforations Liquid DO NOT place BG loudspeakers near an open source of liquid...

Page 4: ... top cover wooden crate of the shipping box up taking care not to cut yourself on the staples used to close the box Open the other cardboard end flaps to expose the loudspeaker still cradled in its protective foam and inside a protective plastic bag Remove the foam pieces over the top of the loudspeaker 4 The R 800 has two plywood panels attached with screws on the sides that secure the loudspeake...

Page 5: ...ing separate dedicated loudspeaker wires from BGA 2500 amplifier to its woofer section and from your power amplifier to ribbon line array section of this speaker system Break In Times Typically a BG loudspeaker requires not less than 48 hours of operation at moderate sound level before reaching its optimum sound quality This improvement may be subtle yet noticeable for a trained listener Note Do n...

Page 6: ... 16 on centers and 8 feet tall If you plan installing speakers in dedicated cabinets prepare it with at least this enclosure size in mind Enclosures of greater depth such as based on 2 x 6 studs can also be used as long as it is filled with fiberglass 4 Sealing holes and joints whenever possible will also enhance low frequency performance 5 Utilizing an open cell 1 mm thick compressible gasket str...

Page 7: ... new construction we highly recommend bracing adjacent stud cavities to the left and to the right of the loudspeaker with additional diagonally positioned studs Use construction adhesive and screws to couple studs to the wall Stuff adjacent cavities heavily with dense green fiberglass It has higher transmission loss characteristics than pink fiberglass 11 If maximum sound isolation is required we ...

Page 8: ...BG Corp 2005 8 To woofer section To woofer section Multi channel amp Receiver To line array input To line array input Front speakers To surround sound speakers FIG 1 H D Installation ...

Page 9: ...line array input terminals Right channel speaker output To ribbon line array input terminals Surround speaker outputs Right channel Line out Left channel Line out Line output To woofer section input terminals FIG 2 System connections to a receiver Y connector Sub LFE Out To additional subs To woofer section input terminals Installation ...

Page 10: ...t channel speaker output To ribbon line array input terminals Left surround speaker output SL Line out R Line out L To multi channel amp L and R line inputs To woofer section input terminals Y connector Sub LFE Out To additional subs optional To woofer section input terminals Preamplifier processor Right surround speaker output SR Line in L Line in R line level signal loudspeaker level signal Line...

Page 11: ... quick disconnect connectors supplied by stripping wires and crimping them The connectors are attached to the bottom woofer The tweeter array should be located on the outer side of the system Connect ribbon planar line array to your receiver amplifier using two 10 24 hook connectors attached to PCB input terminals with 10 screws These Phillips Lug screws will be found on the back PCB Printed Circu...

Page 12: ... into the end caps the grille will buckle in the middle Gradually insert the side edges of the grille into the grille slots located on the side edges of the speaker Insert the grille simultaneously from the top and bottom to the middle of the grille and speaker 9 Test the loudspeaker Installation notes R 88 in wall subwoofers should be installed in stud cavities adjacent to the R 800 preferably sy...

Page 13: ...ters In most cases your setting should not vary too much from this recommended level However different receivers and amplifiers that will power the R 800 ribbon planar array usually have different amplification factor or gain and room acoustic parameters will affect the sound as well Therefore it is important to set BGA 2500 controls properly to make sure that the R 800 s woofers deliver the same ...

Page 14: ...ght levels should be at 0 dB Normally your R 400C center channel level setting should be at 0 dB or slightly higher The subwoofer level setting would depend on the number of subs that you use their location room parameters and your location in the room The levels for surround channels would depend on speakers that you use and their distance to the listening position After the level setting is comp...

Page 15: ...______________________________________ SERIAL NUMBER ___________________________________ PURCHASE DATE __________________________________ AUTHORIZED DEALER ______________________________ As part of our policy of continual product improvement BG reserves the right to change or discontinue any specifications or parts associated with any of its products without advanced notice Thank you again for cho...

Page 16: ...BG Corp 2005 16 www bgcorp com The Power of Clarity ...

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