timdog5000 Posted October 20, 2014 Share Posted October 20, 2014 I have my RF sevens out about 3 foot from the back wall. I would like to push them back a bit, I had them out because I did not have a sub yet and had them set at large. With my crossover now set at 80 is it okay to push them further back towards the back wall? Or is it still good to give them that much room to breathe? Thanks for your help! Quote Link to comment Share on other sites More sharing options...
Moderators Youthman Posted October 20, 2014 Moderators Share Posted October 20, 2014 I have mine about 1-2' from the back wall with no sub and they sound greatly. Try them both ways and see what your ears prefer in your room. Quote Link to comment Share on other sites More sharing options...
Paducah Home Theater Posted October 20, 2014 Share Posted October 20, 2014 I have mine running full range like 8-10" from the back wall and I got all kinds of bass. Maybe I'd get more pulling them out further but it's not like I'm going to. Quote Link to comment Share on other sites More sharing options...
jjptkd Posted October 20, 2014 Share Posted October 20, 2014 Trial and error would be best as each room is different. I would think that a higher crossover setting would reduce any change in low frequency though. I know that with my Chorus II's the bass changes quite a bit from being too close to the back wall (less than 8 inches) and out too far (more than 16 inches.) Also placing them too close to the side walls really exaggerates the bass. I find at least 12-18 inches from the side wall keeps the bass even. Keep in mind that every room is different so its best just to take some time and try moving things around until it sounds right. Quote Link to comment Share on other sites More sharing options...
Paducah Home Theater Posted October 20, 2014 Share Posted October 20, 2014 really exaggerates the bass. I find at least 12-18 inches from the side wall keeps the bass even. I think this is at the heart of it. Certain distances will exaggerate while some will flatten it out. Kind of depends on what you want. If you were running a true audiophile'ish full range setup and want things to be fairly flat I would think that you'd bring them out more. I'm guessing that closer to the wall would exaggerate. Too close to the wall will probably do weird stuff with the port. All I know is that running 8-10" from the wall squared up against it was pretty killer on kick drums. If I wanted flat down to 30 hz though and wasn't running a sub that probably wouldn't be the best solution. Quote Link to comment Share on other sites More sharing options...
timdog5000 Posted October 20, 2014 Author Share Posted October 20, 2014 So far I moved them back to about 20 inches from the wall. Definitely made a change in the sound. Not exactly sure if better or not yer. I'll play around with the suggestions, thanks a lot. Quote Link to comment Share on other sites More sharing options...
Paducah Home Theater Posted October 20, 2014 Share Posted October 20, 2014 So far I moved them back to about 20 inches from the wall. Definitely made a change in the sound. What exactly changed? Quote Link to comment Share on other sites More sharing options...
Quiet_Hollow Posted October 20, 2014 Share Posted October 20, 2014 So far I moved them back to about 20 inches from the wall. Definitely made a change in the sound. Not exactly sure if better or not yer. I'll play around with the suggestions, thanks a lot. Now try bumping up the filter cut off frequency on the AVR...try 90 Hz, then 100 Hz. That corner is adding a lot more bass than you might think as the speakers are under 1/4 wavelength from the nearest boundary. The filter frequency on the AVR is not the acoustic crossover. You can only see that with a mic at the listening position and a swept tone. With measurement equipment, you can literally see the roll-offs and determine filter settings much more easily. That being said, you can still use your ears to dial in the filters on both the AVR and subwoofer, but you'll be shooting in the dark to a good extent. Quote Link to comment Share on other sites More sharing options...
CHASLS2 Posted October 20, 2014 Share Posted October 20, 2014 My older 7's were 13" from the wall and did fine in my small room. Still think it's good to have a sub. Quote Link to comment Share on other sites More sharing options...
timdog5000 Posted October 20, 2014 Author Share Posted October 20, 2014 So far I moved them back to about 20 inches from the wall. Definitely made a change in the sound. What exactly changed? Sounds like the bass is stronger at lower listening levels. Quote Link to comment Share on other sites More sharing options...
timdog5000 Posted October 20, 2014 Author Share Posted October 20, 2014 My older 7's were 13" from the wall and did fine in my small room. Still think it's good to have a sub.I agree I love my sub and would love to add a couple/ few more. Would never run full range with out sub again Quote Link to comment Share on other sites More sharing options...
timdog5000 Posted October 20, 2014 Author Share Posted October 20, 2014 So far I moved them back to about 20 inches from the wall. Definitely made a change in the sound. Not exactly sure if better or not yer. I'll play around with the suggestions, thanks a lot.Now try bumping up the filter cut off frequency on the AVR...try 90 Hz, then 100 Hz. That corner is adding a lot more bass than you might think as the speakers are under 1/4 wavelength from the nearest boundary.The filter frequency on the AVR is not the acoustic crossover. You can only see that with a mic at the listening position and a swept tone. With measurement equipment, you can literally see the roll-offs and determine filter settings much more easily. That being said, you can still use your ears to dial in the filters on both the AVR and subwoofer, but you'll be shooting in the dark to a good extent. The back of the mains are 33" from side wall and the front of mains are 40" from side wall. I have them toes in quite a bit. I'll try the crossover at 100 tomorrow Quote Link to comment Share on other sites More sharing options...
timdog5000 Posted October 20, 2014 Author Share Posted October 20, 2014 Toes in= Toed in. Need new glasses to type on this phone,or longer arms :-) Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted October 21, 2014 Share Posted October 21, 2014 (edited) If you are within 3 ft of the wall you will get boundry reinforcement starting at 80 Hz. My speakers are around 9-12 inches from the wall. Auto calibration took care of everything. Not to much or to little bass. Edited October 21, 2014 by derrickdj1 Quote Link to comment Share on other sites More sharing options...
Quiet_Hollow Posted October 21, 2014 Share Posted October 21, 2014 The back of the mains are 33" from side wall and the front of mains are 40" from side wall. I have them toes in quite a bit. I'll try the crossover at 100 tomorrow You've got three settings that require adjustment collectively in order to achieve good sound. -Setting on the AVR, the "crossover setting" , it's actually the cutoff for the global (all channels) high-pass filter -Setting on the subwoofer power amp, also referred to as the "crossover setting" , it's actually the cutoff for the subwoofer channel low-pass filter -Level knob on the subwoofer power amp. Often times called the "gain knob" , it's actually the attenuator for the subwoofer power amp input stage (aka buffer). Adjusting one setting will often times require a minor adjustment of the other two. Once again, kinda shooting in the dark without measurement gear and test tones, but you'll know you're in the ball park using just your ears when small adjustments yield a large change in the quality of the sound. Quote Link to comment Share on other sites More sharing options...
Paducah Home Theater Posted October 21, 2014 Share Posted October 21, 2014 I played with mine a little more last night, toe'ed them in a little more. The way it's sitting right now is amazing on kick drums, the subs follow the sound of the beater and it literally sounds like all the room shaking kick drums are coming from the screen. I've never experienced this before, kick drums were very mushy before the RF-7ii's. I have them closer to the wall now too. I really like the sound for rock. It remains to be seen if it works well for movies. Quote Link to comment Share on other sites More sharing options...
Quiet_Hollow Posted October 21, 2014 Share Posted October 21, 2014 The way it's sitting right now is amazing on kick drums, the subs follow the sound of the beater and it literally sounds like all the room shaking kick drums are coming from the screen. I've never experienced this before.... That's what it's all about! I really like the sound for rock. It remains to be seen if it works well for movies. When you get the system dialed-in correctly, it'll do just fine with both. Movies and music are one of the same. It's all sound. It's just that movie content shifts heavily between dialog and score with a small remainder going to ambience and sound effects. If the system can't do music, it certainly won't do movies any better. Yet movies always get the short end of the stick for the sake of discussion. Chris touched on this in another thread and I'll go on to say that in practice, most peoples HT systems sound like *** to begin with, so it's no wonder music playback over the same system follows suit. Instead of treating poor music playback as the smoking gun aimed at bad sound, most people instead pass it off using the excuse that their multi-channel rig can't possibly have any 2-ch capability. I'll repeat what I've been saying for years in that proper 5.1 setup is very difficult to accomplish all things considered, but I'll also add what Lucasfilm Ltd. said in the late 80's about THX setup in that when it's done right, or as close to the ideal as possible, the system can handle either mix just the same. Quote Link to comment Share on other sites More sharing options...
Paducah Home Theater Posted October 21, 2014 Share Posted October 21, 2014 Movies and music are one of the same. It's all sound. I have found that I enjoy a ton of midbass and not much super high frequencies with rock, which keeps the cymbals at bay but highlights the kick drums and bass guitars and the powerful voices of growly singers. I had some Wharfedale's that did this pretty good. However this did not make for a good setup for dialog/speech whatsoever. So when I hear some Metallica that sounds perfect, I am skeptical that speech will be as nice. I just got them hooked up so I need to spend some time setting things up. Quote Link to comment Share on other sites More sharing options...
Paducah Home Theater Posted October 22, 2014 Share Posted October 22, 2014 Watched "3 days to kill" last night with them set up like this. A few things did stand out as being exaggerated. Mostly gunshots. There was this very low tone that gunshots put off that shouldn't be there. It could have been the mix though, as much of it was also coming through my subs. Quote Link to comment Share on other sites More sharing options...
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