betty boop Posted May 24, 2017 Posted May 24, 2017 yes location is CRUCIAL of both mains and main listening position within the room. in 2ch rigs in all the rooms I've had my systems in, I've found without fail the rule of thirds to work extremely effectively. I cant tell looking at your room re distances. but sitting at 2/3rd room length has been paramount. I dont know you listening position wiht respect to the length of the room. I also see a Large opening to the back. I wonder if that effectively also increases the room length wiht the doors or if nothing closing it off do didly squat. additionally the positioning of mains is super critical not only for imaging but also bass. regardless of subs or not you mains still contribute significantly to the bass response and what hear and feel at the main listening position. typically I've found anything upto 1/3rd room length to work well with mains some others are boundary designs and need to be closer to a wall to work best. subs similarly dont work so well stuck out in the middle of a room and need a wall for some re enforcement. humps at end of it are VERY easy to deal with. you just pull them down. often subs get their bad name just because people dont do this, just whack in the system and dont integrate in with the mains so you do indeed get a nice smooth (not necessarily has to be flat) response back at the main listening position. again I'm not seeing anything in these discussions telling me you need to play with freq beyond sub freq which is not rocket science and we have had simple tech to deal with this for 10+ years atleast. from childs play to sophisticated in nature.
MrC Posted May 24, 2017 Author Posted May 24, 2017 19 minutes ago, said: yes location is CRUCIAL of both mains and main listening position within the room. in 2ch rigs in all the rooms I've had my systems in, I've found without fail the rule of thirds to work extremely effectively. I cant tell looking at your room re distances. but sitting at 2/3rd room length has been paramount. I dont know you listening position wiht respect to the length of the room. I also see a Large opening to the back. I wonder if that effectively also increases the room length wiht the doors or if nothing closing it off do didly squat. additionally the positioning of mains is super critical not only for imaging but also bass. regardless of subs or not you mains still contribute significantly to the bass response and what hear and feel at the main listening position. typically I've found anything upto 1/3rd room length to work well with mains some others are boundary designs and need to be closer to a wall to work best. subs similarly dont work so well stuck out in the middle of a room and need a wall for some re enforcement. humps at end of it are VERY easy to deal with. you just pull them down. often subs get their bad name just because people dont do this, just whack in the system and dont integrate in with the mains so you do indeed get a nice smooth (not necessarily has to be flat) response back at the main listening position. again I'm not seeing anything in these discussions telling me you need to play with freq beyond sub freq which is not rocket science and we have had simple tech to deal with this for 10+ years atleast. from childs play to sophisticated in nature. I am sitting in the middle of the room in terms of left to right and sitting 4.2 metres back from the front speakers in a room of length 6.0 metres. So essentially I am two-thirds back. The doors are usually open, for listening to 2 channel music. The only time I close them is to watch a movie in daytime when you want to have a pitch black room, which I can do.
betty boop Posted May 24, 2017 Posted May 24, 2017 Seating position sounds ideal... for the room however I do wonder whether opening /closing the doors do didn't squat for prob freq. and that might be your issue. Acoustically the room is larger than what you think. And while you think you are sitting at 2/3 you might actually be sitting middle of room also so that still leaves placement of the mains abd whether that's been optimised
MrC Posted May 24, 2017 Author Posted May 24, 2017 16 minutes ago, said: Seating position sounds ideal... for the room however I do wonder whether opening /closing the doors do didn't squat for prob freq. and that might be your issue. Acoustically the room is larger than what you think. And while you think you are sitting at 2/3 you might actually be sitting middle of room also so that still leaves placement of the mains abd whether that's been optimised The more all the questions are being asked, it DOES open up possibilities about room issues, yet despite the hump at 35-40Hz the bass is tight and well defined. I think I am now in full possession of the facts and I now must make some decisions. Many thanks for your thoughts.
brodricj Posted May 24, 2017 Posted May 24, 2017 10 hours ago, MrC said: I can't see how moving the speakers slightly inward is going to remove the 35-40Hz hump. Read again what I said. You are either not reading, or not understanding.
Satanica Posted May 25, 2017 Posted May 25, 2017 Subwoofers typically have digital proceessors in them which add time delay. Have you considered Australian made DEQX?
MrC Posted May 25, 2017 Author Posted May 25, 2017 I appreciate the feedback people .... particularly when the tone of the advice is largely positive.
Guest Posted June 3, 2017 Posted June 3, 2017 On 23/05/2017 at 7:44 PM, MrC said: Phase corrections and time delays. Also the way you can customise the readings taken and then apply weights to the positions used. Give Multi-Sub Optimizer a go. See my review here.
.thumb.jpeg.a4b7d7f34dec3344afad6af9c8fd6c9d.jpeg)
Recommended Posts