Your sub experience: Easy or hard?


For those of us with subwoofers, I'm curious whether you thought integrating it was easy or difficult.  That's it.

Of course, lots of DBA people will chime in. No problem but please ask that everyone stay on topic.  If you want to discuss all the pro's and cons of DBA take it to a brand new thread.  Thank you.

The focus here is just to ask how many people had easy or difficult times and what you thought was the difference.

erik_squires

Just want to repeat my request to please keep the thread on topic by focusing on:

  • Personal experiences
  • Difficulty of getting to done.

If we veer too much into theory and pro’s cons of any particular solution this thread will rapidly degrade.  Fortunately those interested in debating the pros and cons of any particular solution can pursue that by creating new threads.

Thank you,

 

Erik

nice article and very correct. A sub not only has to match the mains in frequency response but also in time. This is the problem with DBA's. They do a great job of evening out the bass response throughout the room. But, they are not necessarily and probably not matched in time with the main speakers. You have to be in phase and in time with the main speakers or you have essentially an echo. Bass transients like bass drums lose their impact. The buzz in bass strings disappears.

@mijostyn This is mostly incorrect unless you let the subs run up too high. At lower frequencies the 'time alignment' thing isn't an issue simply due to the length of the waveform. At 80Hz its 14 feet long and that means in most rooms its bounced off the wall behind you before the you can even know what the bass note even is (it takes a few iterations of the note before the ear can identify the frequency). By the time you've identified the note, the bass in the room is entirely 100% reverberant- there's no time thing. So yes: ALL bass in regular size room below probably about 80Hz is an 'echo'.

FWIW this is the case whether you have a single sub or a DBA or anywhere in between.

I play string bass; have since I was in 6th grade. The 'buzz' in bass strings comes from harmonics of the instrument, not its fundamentals; the former are handled by the main speakers.

A DBA has no adverse effect on bass impact (if you have a standing wave at the listening position it can certainly improve it); at any rate regardless of the subs you have if they (or it) allow proper bass at the listening position then the bass will be the same in either event regardless of single or multiple subs.

@atmasphere I absolutely agree, if you are crossing over at 40 Hz. If you are trying to "unload" the main speakers from having to make bass which is particularly important for speakers with smaller woofers, full range drivers and ESLs you have to cross up around 100 Hz . For over a decade I was crossing at 120. The wavelength at 100 Hz is about 10 feet depending on your altitude. Worse even if you are using a steep slope there can be useful output up to 200 Hz. These wavelengths fit into all residential rooms except closets. A lot of the detail in bass and slam comes from this range. I can show you in an instant playing a repetitive bass drum kick switching the delays on and off. I do have a special situation as I designed the house and this room was purpose designed to be a media room. All the speakers and subs form linear arrays and are very directive. There is very little room interference. I essentially have no back wall. It is all broken up opening into other rooms and hallways. 

Hoping to order my MA2s in a month or so. I'd say we are 95% of the way there.

Mike

@atmasphere , I forgot to mention we are talking about two different buzzes. I mean the vibration you feel as if you feel the string moving. The buzz you are talking about is the icing on the cake. It comes I think from the string vibrating against the fret board. I love listening to Dave Holland as he makes a lot of that noise playing. I just saw Marcus Miller and Mike Stern at the Blue Note in NYC and I was about 15 feet away from Marcus, best electric bass I ever heard. Now I have a new target to shoot for. I wonder why humans love having their insides rattled.