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7

The “LFE +10 dB” function of the subwoofer is designed to 

add the +10 dB of gain to the LFE channel in the production stage 
if it is not already done by the source connected to the monitoring 
system, Switching the “LFE +10 dB” switch to the “ON” position 
or  using  the  optional  remote  control  activates  the  function.  A 
yellow light next to the “LFE +10 dB” switch illuminates when the 
“LFE +10 dB” function is activated and +10 dB of gain is added to 
the LFE signal. If the audio source outputs the LFE signal at the 
same level as the other (non-LFE) signals and the LFE should 
be reproduced at a 10 dB higher level, set this control to “ON”. 
If the LFE output is at a 10 dB higher level than other (non-LFE) 
channels, this switch should be set to “OFF”.

The “LFE +10 dB” function should not be used in the following 
cases:

• 

If the +10 dB LFE gain is already implemented by another  

 

device, for example, a DVD player, surround sound processor  

 

or the output matrix of a mixing console

• 

When producing an audio format that does not require the 

 

use of +10 dB gain on the LFE channel, such as DVD-Audio  

 

(MLP) and SACD (DSD).

Bypass

The  “BYPASS”  section  allows  the  use  of  an  optional  Genelec 
1092-400 remote bypass switch. This allows for remote control 

of the subwoofer’s bass management bypass 
function. The red “BYPASS” light is illuminated 
when the bypass mode is active. 

With the bypass mode on, the high pass 

filters  for  the  loudspeakers  are  disabled  and 
the system behaves as if the subwoofer was 
not  connected.  The  bypass  function  has  no 
effect  on  the  LFE  signal.  If  there  is  no  LFE 
signal,  the  subwoofer  will  not  reproduce  any  signal  when  the 
bypass is active.

Controls selection

The  subwoofer  works  in  stand-alone  mode  when 
the  GLM.SE™  Control  Network  is  not  connected. 
The  “CONTROLS  SELECTION”  switch  allows 
selection between two basic methods to control a 
subwoofer in stand-alone mode. 

“MANUAL  CTRLS”  refers  to  controlling  the 
subwoofer  using  the  controls  on  the  subwoofer’s 
connector panel. 

“STORED  CTRLS”  refers  to  using  the  settings  stored  inside 
the memory of the subwoofer. These settings can be set using 
the  GLM.SE™  Loudspeaker  Manager  Software  and  the  GLM.
SE™  control  network.  The  stored  settings  provide  additional 

Subwoofer input 4

Subwoofer output 4

Subframe A

Subframe B

Subframe A

Subframe B

Center signal

LFE signal

 redirected  
LFE signal

LFE signal

Center signal

 redirected  
LFE signal

Selection Switch setting

LFE In 
Use

LFE 
AES/EBU 
Channel

LFE 
Bandwidth

Redirect

LFE 
+10 dB

Bypass

Mode

Tone 
Controls

Subwoofer
Level

System 
Level

STORED

Disabled

Disabled

Disabled

Disabled Active

Active

Disabled

Disabled

Disabled

Disabled 

MANUAL 
CTRL

Active

Active

Active

Active

Active

Active

Active

Active

Active

Active

Содержание SE7261A

Страница 1: ...SE7261A DSP Subwoofer Operating Manual ...

Страница 2: ... ...

Страница 3: ...armful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate t...

Страница 4: ...r making the connections and roll the subwoofer back to its normal upright position before use Connections Audio connections Audio connections to the subwoofer are made by XLR connectors All audio cabling from the source must always go first to the input connectors of the subwoofer and then on to the main loudspeakers from the subwoofer s output connectors Connect the digital audio signal cables f...

Страница 5: ...driver This position gives increased acoustic loading and SPL due to the proximity of the front wall and floor Cancellations from the front wall and floor are also avoided Front wall cancellation for the 85 Hz high pass filtered main loudspeakers can be eliminated by placing them at least 110 cm 43 away from the front wall In a multichannel system the main loudspeakers should ideally be positioned...

Страница 6: ...sing the LFE BANDWIDTH switch Signal content in the LFE signal above the frequency value selected on the LFE BANDWIDTH switch is either not reproduced or is redirected see below See also Typical applications of different LFE bandwidth settings below Redirect Using redirection allows the LFE channel to be monitored as a full bandwidth audio channel If the LFE signal includes content higher than 120...

Страница 7: ... bypass function The red BYPASS light is illuminated when the bypass mode is active With the bypass mode on the high pass filters for the loudspeakers are disabled and the system behaves as if the subwoofer was not connected The bypass function has no effect on the LFE signal If there is no LFE signal the subwoofer will not reproduce any signal when the bypass is active Controls selection The subw...

Страница 8: ...n be done Disconnect all loudspeakers from the subwoofer outputs Select the loudspeaker to be used as the reference for the phase alignment Typically this is the Front Center loudspeaker in a 5 1 multi channel system Connect this loudspeaker to subwoofer s AES EBU OUTPUT 1 connector Select subframe A for reproduction on the reference loudspeaker The test tone is played simultaneously from the subw...

Страница 9: ...ady modest ensure that there are no bit errors in the AES EBU digital audio data Typical applications of different LFE bandwidth settings Using the 85 Hz LFE bandwidth setting with Redirect function is the most universal configuration for LFE monitoring However there are situations when the band limited LFE settings serve a definite purpose Limiting the LFE bandwidth to 85 Hz without using the Red...

Страница 10: ...d the subwoofer is necessary to maintain sufficient cooling Do not obstruct airflow around the subwoofer WARNING Genelec SE7261A subwoofer is capable of producing sound pressure levels in excess of 85 dB which may cause permanent hearing damage Guarantee Genelec SE7261A subwoofer is supplied with a two year guarantee against manufacturing faults or defects that might alter the performance of the s...

Страница 11: ...0 Hz Maximum short term sine wave SPL output averaged from 30 to 85 Hz measured in half space at 1 meter 108 dB SPL Maximum peak SPL output with random pink noise measured in half space 1 meter 113 dB SPL Self generated noise level in free field 1 m A weighted 15 dB Harmonic distortion 1 m in half space 90 dB SPL 30 to 85 Hz 2nd 3rd 3 2 Driver magnetically shielded 250 mm 10 Weight 27 kg 58 lbs Di...

Страница 12: ...Designed to Adapt 750 SE7261A Genelec Document D0082R002 Copyright Genelec Oy 12 2007 All data subject to change ...

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