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the Mercedes any day but I drive a Ford Focus eco 125 with a turbo so I get 1.6 power *smile* anyway I no what you mean I've spoken to David and will order the SVS on Mondaybigboss said:
Maybe I didnt explain what I meant correctly.
If you put a speaker driver in a small sealed box it will roll off aggressively in its basd freq and give you very limited frequency extension at 0db
How do sub companies overcome this limitation - in different ways.
BK use a linkwitz filter I am pretty sure to apply some low freq boost to the sub so it can produce deeper bass from the small sealed box.
SVS do it via their digital amplifiers - they can manipulate the output at the lower frequencies to get the sub to output more lower frequencies.
The test is put them in a field and measure them nearfield and see which works best.
There was some tests done on the xls400 I did look for them but couldn't find them but I am pretty sure from memory it rolled off quite steeply. That is what I am basing my comments on. Sorry if that came across wrong.
KK did it with 2 small speakers in an odd configuration - he managed to do it with less power but much more cone area.
If you put a speaker driver in a small sealed box it will roll off aggressively in its basd freq and give you very limited frequency extension at 0db
How do sub companies overcome this limitation - in different ways.
BK use a linkwitz filter I am pretty sure to apply some low freq boost to the sub so it can produce deeper bass from the small sealed box.
SVS do it via their digital amplifiers - they can manipulate the output at the lower frequencies to get the sub to output more lower frequencies.
The test is put them in a field and measure them nearfield and see which works best.
There was some tests done on the xls400 I did look for them but couldn't find them but I am pretty sure from memory it rolled off quite steeply. That is what I am basing my comments on. Sorry if that came across wrong.
KK did it with 2 small speakers in an odd configuration - he managed to do it with less power but much more cone area.
davidf
Well-known member
- Sep 20, 2015
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My AMG CLK63 - its 475 ponies make F350 duallies trying to mate with my rear bumper just specks in the mirrorbigboss said:
davidf
Well-known member
Why? You travelling the opposite way?Benedict_Arnold said:My AMG CLK63 - its 475 ponies make F350 duallies trying to mate with my rear bumper just specks in the mirror
davidf
Well-known member
Any set up queries, I'm either here or on the end of phone - email outside of normal hoursBlacksabbath25 said:
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Well it arrived safely thanks David
ive roughly set the sub up currently theses are the settings I've made and sure if something is wrong in how I set it up someone will put me right it sounds ok anyway here goes... I have one phono connected on the LFE on the subwoofer and input 1 on the Yamaha
volume control set at 12 o'clock
Phase Control set at 0
Low Pass Filter set to LFE
Av end all speakers set to 80hz
ive measured the distance from where I sit and did a SPL measurement for rough 75db
right I currently have a free sat Humax sat box and not sure if this is the issue but channels like BBC use Dolby pro- logic if that is still used the sub works on channels like this but if I go to a different channal the sub does not detect a bass signal so goes into standby is this normal for free sat boxes or is it that some channels are in stereo ?
Watched a couple of films but only testing ... terminator 2 , trainsformars , I've got to say one thing now what a hell of a sub out of the box it sounds very good and it's very powerful as I was mucking around with the sub volume and took it past to max and there is a that bit in terminator 2 when the T1000 and Arnold meet after the games arcade when Arnold fires his shotgun it felt like he had shot me you could say I felt it and so did my wife as she nearly chocked on her Cuper tea . I had to turn it down but it's amazing how powerful this little sub is it's unbelievable .
i can't tell the sub from the rest of the fronts so I take it that's a good thing ? But basically if there is anything I've not done please let me know *smile*
ive roughly set the sub up currently theses are the settings I've made and sure if something is wrong in how I set it up someone will put me right it sounds ok anyway here goes... I have one phono connected on the LFE on the subwoofer and input 1 on the Yamaha
volume control set at 12 o'clock
Phase Control set at 0
Low Pass Filter set to LFE
Av end all speakers set to 80hz
ive measured the distance from where I sit and did a SPL measurement for rough 75db
right I currently have a free sat Humax sat box and not sure if this is the issue but channels like BBC use Dolby pro- logic if that is still used the sub works on channels like this but if I go to a different channal the sub does not detect a bass signal so goes into standby is this normal for free sat boxes or is it that some channels are in stereo ?
Watched a couple of films but only testing ... terminator 2 , trainsformars , I've got to say one thing now what a hell of a sub out of the box it sounds very good and it's very powerful as I was mucking around with the sub volume and took it past to max and there is a that bit in terminator 2 when the T1000 and Arnold meet after the games arcade when Arnold fires his shotgun it felt like he had shot me you could say I felt it and so did my wife as she nearly chocked on her Cuper tea . I had to turn it down but it's amazing how powerful this little sub is it's unbelievable .
i can't tell the sub from the rest of the fronts so I take it that's a good thing ? But basically if there is anything I've not done please let me know *smile*
- Sep 20, 2015
- 309
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