Bass roaring? - Forum
I hope I won't post something that's been discussed many times before already, but I couldn't find something similar in the forum in the fast.
I bought G Three's some days ago and I feel like they somehow roar (don't know if it's the right term in English) in a certain bass region when playing electronic music, even in very low volumes.
I use them in my home office on a big table/desk beside my 27'' screen. They're on solid table stands (from manufacturer K&M) and on height of my ears. They're about 20 cm away from the wall, about 80-90 cm away from me and and from each other in a equilateral triangle, if you will. My room is about 4x3 meters, there's NO audio treatment. I use a Motu M2 as a connection to my computer and mono XLR-cables to 6.3mm jack cables.
I tried different tone controls like tabletop (obviously), but also reduced bass and low bass to test. To me it sounds like it doesn't change much of my problem. I also already tried to place them a bit farer away from the wall (like 40 cm), but more wouldn't be practical on a long-term perspective.
Any ideas what could cause that effect and how to get rid of it or is it even a "normal" behaviour of the speakers? And if so, could a F One/Two subwoofer change that (due to filtering or so)?
I would be very happy for some thoughts/ideas what I could try to change or do better.
What you'r hearing is feedback from your room, one or more frequencies that are way too loud.
To really solve this, you'd need new digital genelecs or some other calibration kit with a microphone,
But we can improove things a whole lot just by ear, using a few test-tones and an EQ on the output of your computer.
Play around with a frequency generator, try to hear which frequencies between 60 and 200Hz are too loud.
Then reduce those frequencies on an EQ on the output of your computer.
Here's a free utility for windows: https://sourceforge.net/projects/peace-equalizer-apo-extension/
some googling will find one for the Mac too.
Update: Thank you so much, that worked pretty well. It sounds much better now!
Impressed by the importance of the room feedback, I'm thinking about some simple room treatment to hopefully make the acoustics a bit better. Maybe acoustic sails on the ceiling or better something behind the speakers on the wall?
Great news about your bass problem. For these room corrections, try very narrow but pretty strong EQ filters, like -10db.
I'd say there's two ways to do acoustics at home.
Easy ways is just absorbing higher frequencies with a few foam absorbers. Those you can easily buy in any shop.
Hard way is huge absorbers made from rockwool that you'll have to DIY, alone or with an acoustician. Those can improve all frequencies, but it takes between 2 and 5 cubic meters of rockwool to do it. This isn't very difficult to do, but a lot of work.
If you stay with your size speakers, I'd think the simple way is good enough.
And if somebody tells you they can improve your bass with anything small enough for shipping, be sceptical ;-)
Thank you, I did it like that. There were three frequency regions (~123, ~174, ~227 Hz) with very much higher volume than the other Hz tones. My corrections are between -5 and -11 dB and I used the "quality" row to make the curve corrections narrower (I hope that's the right way to do it), with values between 10 to 15. Also I boosted the highs a little bit. Thank you very much for suggesting the equalizer, it helped a lot.
And about the absorbers: First I wasn't quite sure if it wouldn't be a bit an overkill in my small home office as I understood, that the more volume of the rockwool (meant in terms of the form, not loudness) the more the absorbtion works and so it kind of will affect the space. On the other hand I got very much interested in how it will affect acoustics in my room. I also watched some videos about it - some seemed elaborated and kind of trustworthy (for example one with Bobby Owsinski), and some a bit less. Now I also understand the "be sceptical if shipping is possible" part of your reply :D So, I will check what to do next.
And I'm still thinking about getting a subwoofer to get the lower tones even better defined, but in this case i guess some room treatment will be a must ...
But again, I'm already very happy with the sound quality right now. Thanks for your help!