|
|
Post by munson on Feb 9, 2022 14:50:45 GMT -5
Will be running a pair of RS13’s and pair of T2+, each being fed by a separate XPA-DR1. Where would the ideal crossover cuts be? I’m overpowering for precision, not volume. Not a huge room either.
|
|
|
|
Post by donh50 on Feb 9, 2022 22:05:57 GMT -5
The T2+ specs 35 Hz -3 dB or so meaning the typical 80 Hz crossover is about an octave above the -3 dB point. I would set 80 Hz for starters and see how it plays. That will help reduce LF distortion in the mains, letting the sub do it's thing, and keep good stereo imaging as you move the sub to optimize the in-room bass response.
IMO - Don
|
|
|
|
Post by munson on Feb 9, 2022 22:26:20 GMT -5
Awesome, thank you.
|
|
geebo
Emo VIPs 
"Too bad that all the people who know how to run the country are driving taxicabs and cutting hair"
Posts: 24,204
|
Post by geebo on Feb 10, 2022 10:07:56 GMT -5
The T2+ specs 35 Hz -3 dB or so meaning the typical 80 Hz crossover is about an octave above the -3 dB point. I would set 80 Hz for starters and see how it plays. That will help reduce LF distortion in the mains, letting the sub do it's thing, and keep good stereo imaging as you move the sub to optimize the in-room bass response. IMO - Don I have the T2's and agree that 80Hz works well as a crossover frequency. You may try 60Hz to see how it works for you in your room but I've settled on 80Hz in mine. |
|
|
|
Post by munson on Feb 10, 2022 11:47:19 GMT -5
That’s 2 votes for 80hz. Thanks all!
|
|
|
|
Post by lhracing on Feb 10, 2022 19:57:57 GMT -5
I have a different setup but similar in response, JBL M2 speakers and a pair of SVS SB-4000 subs. I run the crossover at 40hz because the E string on a Bass Guitar is 41hz and I wanted most of the music to be reproduced by the higher quality speaker.
|
|
|
|
Post by donh50 on Feb 10, 2022 20:10:23 GMT -5
I have a different setup but similar in response, JBL M2 speakers and a pair of SVS SB-4000 subs. I run the crossover at 40hz because the E string on a Bass Guitar is 41hz and I wanted most of the music to be reproduced by the higher quality speaker. In many, perhaps most, cases the "higher-quality speaker" would be the sub at that frequency. That means your M2's still have significant energy to 20 Hz or so after the 40 Hz crossover. Very few main speakers handle large LF signals without high distortion (your M2's are rated to 20 Hz, of course, with the applied EQ). While I do not have M2s, by all respects a highly-regarded monitor, my Salon2's will play quite low but I (and Dr. Toole, and Kevin V, and many others) still prefer to cross them over to subs at 80 Hz. There is also the ability of placing the sub(s) to help smooth the in-room response and that requires them to be crossed over decently above the lowest modal frequency or two in the room. The speakers that can actually handle 40 Hz at the levels needed (see Fletcher-Munson equal-loudness curves) with low distortion are very, very few. All that said, the M2's are rated to 20 Hz (-3 dB) so meet my preference for crossing over an octave above the -3 dB point, and they are usually paired with massive amplifiers for a reasonably sensitive speaker, just lower than what I would use. Trades and preferences. |
|
|
|
Post by munson on Feb 10, 2022 20:32:51 GMT -5
I really appreciate all the feedback everyone, thank you.
|
|
