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REL Acoustics Britannia Range User Manual

23

REL Set-Up Made Simpler

Connecting

High-level  connection,  using  the  enclosed  cable,  is  always  the  first  choice.  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 which ever of the amplifier’s ground
output  terminals  is  convenient;  plug  the  connector  into  the  “HIGH  LEVEL
UNBALANCED  INPUT”  input.  For  connection  to  a  differential  amplifier  consult  your
dealer.

Positioning

Primary Placement, for a REL is in one of the corners behind the main speakers.
Phase Selection is the next step. Keep in mind; the correct phase is whichever position is the
loudest  or  fullest.  While  playing  music  with  true  low  bass,  adjust  the  crossover  to  a  point
where the sub and the speaker are sure to share frequencies (B, 3 for big speakers; C, 4 for
smaller  speakers).  At  this  point  adjust  the  gain  so  that  both  sub  and  speaker  are  roughly
equal  in  output  and  then  switch,  using  the  “mode  selector”  switch,  from  “0”  (position  1)  to
“180” (position 3) phase positions. Again, whichever position is loudest or fullest is the correct
position,  and,  as  often  as  not,  may  be  180-degree  phase  (see  enclosed  “Control  Panel”
section from the owner’s manual).
Position. The next step is to determine precisely how far out from the corner the sub should
be to achieve the most efficient output, as well as the lowest frequency extension. With the
sub fully into the corner, continuing to play the music, slowly pull the sub from the corner on
the diagonal, equidistant from both side and rear wall. At a certain point (sometimes a matter
of only a few inches, in rare cases a foot or more) the sub will audibly go lower, play louder,
and, if it truly locks on to the room and is fully pressurising it, the air around the sub will seem
to be energised. Stop right there! This is the correct position for the sub.
Orientation.  Once  the  position  from  the  corner  has  been  established,  the  orientation  of  the
woofer must be determined by rotating the REL from an imagined centre point at the rear of
the sub. As the sub is moved from one side to the other listen for the greatest level of output
and bass linearity. In effect, the sub should left in the position where it is playing the loudest
and lowest.

Adjusting

Crossover  Selection.  To  determine  the  crossover  point,  bring  the  gain  down,  put  the
crossover to A-1 (or B-2 should output not be sufficient), and then bring the gain back up to
the point where you have achieved a subtle balance. Working only with the coarse control (A-
D), bring the crossover point up until it is obviously too high, at this point bring it down to the
next lowest setting. Now, working with the fine control (1-6), bring up the crossover point until
it sounds too high, at which point bring it back down to the next lowest setting. For all intents
and purposes, this is the correct crossover point. Once this stage has been reached, subtle
changes to gain and crossover can be accomplished to provide the last bit of complete and
seamless integration. In addition, subtle adjustments of the orientation of the sub may provide
further improvement of the sub-bass system’s integration with the main speakers.

Including Theatre

Multi-channel systems LFE output should be connected to the low-level input and appropriate
gain adjustments made at this point. It may be necessary to take the crossover out of the low-
level  input  using  the  “mode”  switch  if  extra  upper  bass  output  is  called  for.  Keep  phase
consistent  with  what  was  selected  during  high-level  set-up  by  simply  choosing  the
corresponding setting (1 = 2, 3 = 4). When connecting to the low level inputs, connect a single
RCA cable to the 0dB RCA jack. Should additional gain be required, connect to the +12 dB
input.

Содержание Britannia B1

Страница 1: ...USER MANUAL Britannia Series B1 B2 B3 REL Acoustics Limited North Road Bridgend Industrial Estate Bridgend CF31 3TP Great Britain Telephone 44 0 1 656 768 777 Fax 44 0 1 656 766 093 Web www rel net...

Страница 2: ...REL Acoustics Britannia Range User Manual 2...

Страница 3: ...T 13 TO CONNECT TO MONO BLOCK POWER AMPLIFIERS USING THE HIGH LEVEL NEUTRIK UNBALANCED INPUT 14 TO CONNECT TO DIFFERENTIAL BALANCED OUTPUT POWER AMPLIFIERS USING THE BALANCED HIGH LEVEL INPUT 16 TO CO...

Страница 4: ...that it cannot be walked on 9 For added protection during a lightening storm or when not in use for long periods of time unplug it from the wall socket 10 Never spill any kind of liquid on the unit 1...

Страница 5: ...ective in material or workmanship All expenses except collateral expenses related to replacing or repairing a defective part under this warranty will be assumed by Sumiko except for the cost of transp...

Страница 6: ...product is CE marked and has been tested to ensure it satisfies all relevant standards It satisfies all relevant standards for Conducted Emissions Radiated Emissions Susceptibility and Immunity It al...

Страница 7: ...the filter controls 3 Balanced and unbalanced inputs via high quality sockets 4 Mode switch to control phase and low level filter bypass 5 All components of matching superior quality to achieve both l...

Страница 8: ...olled within the software by the processor s decoder circuitry The high level inputs are always routed through the ABC The phase can be reversed by 180 degrees by means of this same switch to preserve...

Страница 9: ...SYSTEM PROTECTED BY MADE IN GREAT BRITAIN www rel net R HIGH LEVEL BALANCED INPUT Britannia B1 TM MAX MIN MAX MIN 1 2 3 4 A B C D 1 2 3 5 6 MODE LO LEVEL HI LEVEL COARSE FINE LO INPUT 0dB 12dB SOURCE...

Страница 10: ...1 2 3 4 5 6 MODE LO LEVEL HI LEVEL COARSE FINE LO INPUT 0dB 12dB SOURCE 1 2 3 4 LINE LFE LINE LFE PHASE 0 0 180 deg 180 deg MODE SELECTOR ROLLOFF HIGH LEVEL UNBALANCED INPUT LINE LEVEL BALANCED INPUT...

Страница 11: ...LEVEL BALANCED INPUT Britannia B3 TM MAX MIN MAX MIN 1 2 3 4 A B C D 1 2 3 4 5 6 MODE LO LEVEL HI LEVEL COARSE FINE LO INPUT 0dB 12dB SOURCE 1 2 3 4 LINE LFE LINE LFE PHASE 0 0 180 deg 180 deg MODE SE...

Страница 12: ...oint used in conjunction with Fine Roll Off control above See chart on amplifier or in this manual page 8 for crossover frequencies determined by setting combinations of both controls 0dB LO INPUT pho...

Страница 13: ...fer receives exactly the same signal as the main speakers which means that the character of the bass from the main system is carried forward into the sub bass This is a very important point and togeth...

Страница 14: ...plug place thumb on chrome lever move lever backwards rotate plug anti clockwise counter clockwise in the US quarter turn and withdraw Supplied Neutrik Speakon High level Interconnect RED HIGH LEVEL...

Страница 15: ...REL Acoustics Britannia Range User Manual 15...

Страница 16: ...h channel A differential amplifier does not have to be a mono amplifier or one that has balanced inputs There are a number of stereo integrated and basic amplifiers that are differential The output to...

Страница 17: ...nto the 0dB input on the sub woofer If when using the 0dB input the output of the sub woofer is too low then use the 12dB input The output level is adjusted using the control marked LO LEVEL If the lo...

Страница 18: ...tion to the other then this method will cause a mono signal to be sent to the main amplifier s or active speakers If in doubt then contact your dealer distributor or the manufacturer of the pre amplif...

Страница 19: ...LR balanced input not fitted on B3 is a single channel input designed for professional use when connected to a mixing desk or a pre amp control unit with balanced line outputs Two sub bass systems are...

Страница 20: ...s pressurisation below 40Hz is best derived from corner placement where the most linear and efficient low bass can be produced Basic set up should take no more than ten to fifteen minutes to accomplis...

Страница 21: ...r fullest is the correct position and as often as not may be 180 degree phase That is this position is working in harmony with your main speakers reinforcing bass and not cancelling it 2 Placement The...

Страница 22: ...o receive the bass signal via the high level cable In this configuration the REL provides support for both the left and right speakers for two channel listening and support for the LFE when movies are...

Страница 23: ...on to the room and is fully pressurising it the air around the sub will seem to be energised Stop right there This is the correct position for the sub Orientation Once the position from the corner ha...

Страница 24: ...ve unit Apart from being sonically offensive this can cause drive unit damage Set Safe detects the point of incipient clipping and reduces the signal level to ensure actual clipping does not occur Eve...

Страница 25: ...ity to dissipate more heat and this translates into greater bass depth and volume To help control this power and to further minimise port noise both the B2 and the B1 models incorporate Balanced ARM l...

Страница 26: ...set period of no signal condition up to 10 15 minutes and which need to power up on receipt of a sudden transient thus failing to catch the start of that transient There is also the possibility of the...

Страница 27: ...ong Throw 250mm Long Throw Heavy Duty Cast Chassis 300mm Long Throw Heavy Duty Cast Chassis LOWER FREQUENCY RESPONSE IN ROOM AT 6dB POWER OUTPUT WATTS 200 RMS 300 RMS 500 RMS PHASE 0 and 180 Degrees 0...

Страница 28: ...REL Acoustics Britannia Range User Manual 28...

Страница 29: ...REL Acoustics Britannia Range User Manual 29...

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