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Conference hips::uk_audioo

Title:You get surface noise in real life too
Notice:Let's be conformist
Moderator:GOVT02::BARKER
Created:Thu Jul 28 1988
Last Modified:Mon Jun 02 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:550
Total number of notes:3847

466.0. "Bass not pronounced" by ZPOVC::THOMASLEONG () Wed Jan 19 1994 02:16

    My system consist of AV amp Denon 2530 with Mission 753i speakers. The
    problem is that the bass does not sound pronounced. Are there anything
    I can do to improve the bass ? 
    Thanks.
    Thomas
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466.1CHEFS::TAFF::WobRobert Screene, UK Finance EUCWed Jan 19 1994 17:129
Are they facing straight from a nice solid wall.  Try moving them closer or 
from the rear wall.   A few inches really does make the difference!

Are they front or rear ported or solid box designs?   My guess with a big 
mission model number like that is they're floor standing and front ported.
Ports are funny things and make placement even more tempremental.

Regards,
Rob.
466.2ZPOVC::THOMASLEONGThu Jan 20 1994 06:5010
    Rob
    
    My speakers are placed one foot from the solid wall and they are placed
    about 8 feet apart. What do you mean by front ported? What I can see is
    that they have three holes in the front. They are of the solid box
    design, I think. I will try placing them nearer to the wall and see what
    happen. Will post again.
    
    Thanks
    Thomas
466.3BAHTAT::HILTONBeer...now there's a temporary solutionThu Jan 20 1994 14:291
    Are they on stands or straight onto carpet or something soft?
466.4ZPOVC::THOMASLEONGFri Jan 21 1994 02:268
    The speakers are floor standing type and the vendor supplied it with
    four rubber cushion. The floor has no carpet and they are floor ceramic
    tiles. I have tried placing it about 5 inches away from the solid wall
    but it seems that there is not much of a difference in sound. I have
    also changed the interconnects of my CD player (Denon 695). What else
    could be wrong?
    
    Thanks
466.5Rubber cushions are for seats :-)HLDE01::STEENWINKELMostly HarmlessFri Jan 21 1994 10:307
    Change the rubber cushions for a decent set of spikes, three per
    speaker. Spikes start at a couple of US$ apiece but on my system it
    was one of the best improvements in sound, price/performance-wise,
    followed by speaker cabling.
                                                        
                                                  - Rik -
    
466.6In phase ?UPROAR::WEBSTERMany old stringFri Jan 21 1994 17:488
    
    Probably a silly idea but,
    
    Check the cables and make sure the speakers are in phase. Once
    connected an old pair of goodmans speakers out of phase and the loss of
    base was amazing.
    
    Mike
466.7Rooms/HousesKIRKTN::PCARLINSat Jan 22 1994 17:2911
    How big is your listening room? Small rooms can suffer from lack of
    bass because of destructive interference of the air waves. Not much
    you can do about that one!
    
    Also, houses can be funny things: my Linn Saras don't produce much
    bass in my listening room but if I go upstairs, the furniture is
    bouncing across the floor!
    
    I agree with the above note: check the polarity. Out of phase speakers
    can cancel out the bass.
    
466.8TASTY::JEFFERYChildren need to learn about X in schoolMon Jan 24 1994 12:279
    re: .-1
    
>   Also, houses can be funny things: my Linn Saras don't produce much
>   bass in my listening room but if I go upstairs, the furniture is
>   bouncing across the floor!
    
    Check for poltergeists first!
    
    Mark.
466.9ZPOVC::THOMASLEONGTue Jan 25 1994 06:006
    My friend suggested that probably my AV amp can not drive the mission
    speakers. Maybe it will be wise to add an active subwoofer to the
    system. Any ideas what I should do?
    
    Thanks
    Thomas 
466.10we want freedomZPOVC::WENGFATTTue Feb 15 1994 02:581
    
466.11Boom boomPEKING::GERRYTTue Feb 22 1994 12:5010
    Wrong connection of the wires ie plus to minus on one of the speakers
    does make a great deal of difference ie out of phase as previous
    suggestion.
    
    Sub-woofers can distort the stereo image, so it may be better to check
    all connections again, and watch positioning of the speakers.
    If you put them in corners of the room, you may notice they get a lot
    more 'boomy'.
    
    Tim
466.12Still no BassZPOVC::THOMASLEONGTue Jun 21 1994 04:467
    HI
    Just to update everybody. I have not added any subwoofer and I am
    putting my system into a display unit, housing the speakers, hopefully
    the sound will turn out fine.
    
    Thanks
    Thomas