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Excellent. Everything looks good, except I would enable the acoustic timing reference. It makes comparisons easier because each measurement will have the same zero start time. Graphs: - 1/6th smoothing. - Scale: 20 dB to 100 dB; 5 Hz to 25,000 Hz I'll DM you a link to download my MDAT so you...

It varies in all three dimensions: front to back, side to side, and top to bottom. One way to visualize what's going on is to imagine that your cabin is filled with liquid. Each speaker is a dolphin sending sonar waves that radiate in three dimensions through the liquid and bounce around the...

Sure thing. Hope the settings help. I agree; if 1 kHz is a crossover problem, it's unlikely to be fixed OTA. The only way I can think of to do it OTA is to add FIR/IIR filters to the DSP to time-align the crossover region. I don't know how much processing power is available to run that kind of...

I read that thread and feel bad for the owner. He did a lot of work for no gain. Unless the speakers are digital and handshake with the infotainment system via some hidden protocol, power draw seems to be the only way the infotainment system would know that the speakers had been changed. I can...

I'd say 1-2 hours. The measurements don't take long. The time is in setting up the mic, getting everything to a default state, etc. If you'd be willing to give up your time for this cause, that'd be quite cool!

Glad to hear they helped. But yes, I think your ears are telling you the correct story about the midrange. The problem is caused by the big 20 dB imbalance centered on 1 kHz. Cutting 1 kHz means that you bring down the 500-900 Hz range to improve clarity, but that drags 1-1.5 kHz even lower...

Sure. Front speakers: Revel F208 and C208 Side surround: Revel M105 Top front/top rear: Revel M80XC Subwoofers: Dual Power Sound Audio 15Vs Receiver/processor: JBL Synthesis SDR-35 External amplification: Buckeye Amps Hypex NC502MP 4-channel amp Turntable: Gemini PT-2000 with Ortfon Red...

It's hard to say because not only is the R1T cabin a lot lower volume, it has fewer speakers to generate sound waves from different positions, and it doesn't have a subwoofer. I did some back-of-the-napkin math using the approximate dimensions of the R1S cabin to see if I could predict where I'd...

That is very cool ? Thanks for doing that!

You're welcome! If I could change two things, I'd change the crossover network and subwoofer. A higher-power sub with deeper extension would require a more powerful amplifier, but if we take the sub and amp as a package, then the crossover and sub. I've seen posts of folks upgrading their subs...

Totally. It's all about what you like!

Glad it worked for you! Yes, unfortunately we don't have a lot of ways to adjust the sound. But I am going to ask support to implement a parametric EQ to give us better controls. Cool that you're using Dirac at home. I use DL Bass Control in my home system. I'd love to see Rivian implement...

Interesting. Is the Meridian EQ different?

Thanks! The guitar on the Coe track is fantastically sharp. I could almost see the slide move along the neck. "The Devil Went Down the Georgia" is incredible. What a fiddle. Brought back memories of hearing this song for the first time when an American gymnast used it for her floor routine. I...

Awesome! A parametric EQ would help a lot. I'm not sure how much it will help with the issues centered around 1 kHz, though. I'm concerned that improper crossover design is causing them. If the crossover is digital, it could theoretically be fixed OTA. But digital crossovers tend to be found...

Thanks! If you’re ever in Austin, hit me up!

Thanks! Multiple custom EQs is a great idea and something they should be able to implement OTA. If the vehicle can sense when windows are open (different from sensing changes to cabin noise), the system could automatically switch to a different EQ profile when windows come down. That’d be a...

Completely agree. Cutting 1 kHz should definitely be the big takeaway for an R1S Elevation system.

Sweet! Looking forward to that. It’ll be interesting to see if your Meridian system lacks the FR and phase issues the Elevation has around 1 kHz. If it does, I’d interpret that to mean Rivian didn’t change the crossover when they changed the speakers to the Elevations. I can give that...

Yeah dynamic adjustment just changes volume to compensate for cabin noise. I turned it off to remove as many variables as possible during testing but I leave mine off anyway because I find that it changes volume when I don’t think it should or needs to. I just change the volume myself with the...