Do you think you need a subwoofer?


Why almost any one needs subwoofers in their audio systems?

I talk with my audio friends about and each one give me different answers, from: I don't need it, to : I love that.

Some of you use subwoofers and many do in the speakers forum and everywhere.

The question is: why we need subwoofers ? or don't?

My experience tell me that this subwoofers subject is a critical point in the music/sound reproduction in home audio systems.

What do you think?
Ag insider logo xs@2xrauliruegas
Hi Raul,

I just burned RealTraps Test Tone CD onto a blank cd and have been playing with it for an hour or so.

It's amazing how much output jumps on in the frequencies where there are room modes. Fells like 5x the volume or more.
Dear Darkmoebius: It looks great. I will try this week-end ( if I can ).

Regards and enjoy the music.
Raul.
Dear Raul and others,

I ran into a thread on avtalk.co.uk specifically about using the high-pass filter in the Velodyne DD series:
http://www.avtalk.co.uk/forum/index.php?t=msg&th=11392&start=0&rid=0&SQ=0

In this thread, it is observed that the phase of the signal that is passed beyond the high pass filter is quite variable. There is a chart here where someone with a DD18 created to demonstrate this. The poster then goes on to recommend not using the high-pass filter on the Velodyne DD series. Raul and others - do you feel as though these phase variations are a major problem? Minor problem?

Thanks for sharing thoughts

Todd
Dear Todd: I think that the man with the Dynaudio speakers have or a room's problem or a Velodyne High-pass filter problem in his sub.

A high-pass filter is a very simple design subject, there is no " high technology " here or " genius " know-how.

If, like the people of Velodyne say, the high-pass filter of the DD series is the same than in the HGS series: don't worried about, is a good one. Btw, don't worried about that specific phase issue on that thread.

Stay calm.

Regards and enjoy the music.
Raul.
Raul,

Thank you for starting and supporting a truely informative and interesting disucssion. I just read the entire thread (not counting all the helpful links, yet). This is a great resource for those looking to further improve musical reproduction in the home.

We don't have a sub (or subs) yet, and space constraints may prevent us from adding any, unless we buy a bigger house or add a music room to the existing one. Putting two subs in front of our speakers (or anywhere) would be impossible. There would be no space left to walk through the living room.

The most we could do at present would be to add a single sub, and it would have to go in one particular corner, behind and outside the right speaker. There's a foot or two to play with but that's about all.

Do you think that would be worth the expense and trouble? Another factor to consider is our very lively suspended wood floor, which already sends too much energy into the equipment rack. Lightening the load on the amp and main speakers makes excellent sense, but shaking the electronics and turntable with alot of LF energy doesn't. Help!

Thanks,
Doug