Directional Bass? Setting Center & Surround Crossovers To 80hz or Lower w/ @RELAcoustics

Comments · 81

• PA

  @Paranimal86 · 4 years ago (edited)

  I’m glad my Focal Choras have matching 6 1/2” midrange drivers in the center channel to match the towers and it has 2, where my towers have one.  It doesn’t have the base drivers but never do I feel like they center channel is lacking. Focal opts for a larger 6 1/2 driver for the mid range versus many manufacturers 5.25” driver designs… the voices have a more gravitas sound to them never small sounding. Panning between channels is excellent.

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• MF

  @mfkhometheater7742 · 4 years ago

  I think there is a lot of high frequency components in that sudden impact transient he mentioned in the early part of the video and that&apos;s why you can immediately detect the direction it comes from. &nbsp;<br><br>As for the center speaker, I did make mine slightly smaller than the mains but it is still 7&apos; tall so I don&apos;t anticipate any problems. &nbsp;In fact if I had it to do over the mains would probably also be 7&apos; instead of 9&apos;-8&quot;. &nbsp; That way the mains wouldn&apos;t be extending above and below the AT screen.

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• BA

  @Bassic778 · 4 years ago

  Yup! I have a Rel Q108E and have my speakers set to full range.

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• NO

  @nodoubt1616 · 4 years ago

  How to get a 3d setup? What settings should you use?

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• TO

  @TokeBoisen · 4 years ago

  I get what he&apos;s saying about the tactile impact maybe being directional, but I feel that only really makes sense in free-air settings.<br>In confined spaces, ie listening rooms and theaters, the pressure-waves are contained and bounce all over the place, and there&apos;s no guarantee the transfer of energy would hit you from the point of origin the first time.

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• MA

  @markmarroquin2299 · 7 months ago

  I just put them to large for all of them because the impact with bass and the dialog is very good and clear

• SC

  @scruffy8861 · 4 years ago

  Have John comment further and clarify his comments with solutions to the THX 80Hz xover that is widely implemented.

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• PR

  @PrezidentHughes · 2 years ago

  Thats why I&apos;ll be sticking to 2.1ch for the foreseeable future.

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• BE

  @BEEFTEEF4 · 2 years ago

  Good conversation. My recommendation is to try them both. Newer AVRs have an option to send full range to center and surround even in “small” mode. In these newer AVRs “small” means full to center + surrounds and then activate the subwoofer at the crossover point. <br><br>Setting to large treats the center + surround crossovers as HARD STOPS, where the center + surround will not play below the crossover and the sub picks up at the crossover. <br><br>So you are telling me a pair of $3000 fronts can replicate 60hz better than a $750 subwoofer (let alone a pair of them?) no way. <br><br>Try it and listen for yourself. I’ve tried both and unless you are running $150k of Von Schweikerts as your center + surround, you should be in small mode.

• SA

  @sasoesasoe · 1 year ago

  Excellent point to think about. I am also bothered by the fact that the center and surrounds are not full range speakers. In the movie, for example, the speech of the dragon or the transformers voice has this charm, this deep bass. And when the explosion comes from the left side, or from above, I want the bass to come from there as well. I was already interested in the idea of ​​feeding the RCL with 3x mono amps, of which each also has a sub output (say Fosi Audio Z3). So each RCL speaker would also have its own sub 15&quot;-21&quot;. Does this make sense, or is this a dumb idea? 3x FOSI = approx. 450 euros (but so also great for music, not only movies). And then on, each soround and hights with thers sub, say 10&quot;-12&quot;? Crazy? :) Full room directional Bass.

• HE

  @healthynutster · 4 years ago

  While I agree in principal that the center channel should be full range ish, there are significant issues with lower frequencies in rooms, and these issues are best resolved with judicious placement and calibration &nbsp;of multiple subs. Positioning &nbsp;rt, lt and center images in their appropriate positions and running them full range is asking for all sorts of peaks and nulls and any number of undesirable room interactions. <br> &nbsp;As for the 80 hz crossover, if the subs are correctly placed (and volume and phase calibrated, with peaks digitally corrected) then crossing above 70 hz isn’t necessary or desirable. The subs will handle those frequencies and handle them better with more impact and accuracy than running speakers full range.

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• MA

  @matsudakodo · 4 years ago

  I feel that this approach is too often done without a measurement-based approach and therefore a user wouldn&apos;t know where the phase problems in the response are resulting from multiple non-integrated bass sources.

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