Sound Theory | Speakers, baffles & more! (Webinar 5)

[@boomerdiorama]

Thank You for this episode. Sound comparison is somewhat of an art as much as it is a science. There are multiple factors to consider, not to mention the enclosure design, size, shape, etc. Furthermore, the decoder and sound file is going to play a significant part as well. Very difficult genre to judge effectively due to the multiplicity of applications, hardware, physics, scales, etc. Having said this, I would agree the "sugar-cube" speakers are a remarkable technology over the traditional style of speaker for sure. Why not combine both, if possible? Cheers.

[@SoundtraxxDCC]

Thanks for the feedback!

[@OmegaDeus8467]

Hello George. This is very helpful information on your products. I look forward to viewing more of your webinars. Thank you.

[@SoundtraxxDCC]

Thank you for the feedback. We are glad that you are enjoying the material. Our next webinar is this Tursday (4/25/19) and covers the Basics of decoder installations. Register now: zoom.us/webinar/register/WN_D9zKQr9EQyy4S2WhGmlW-g

[@billmorgan6110]

* Proper Baffling * Speaker Type * Speaker Size * Speaker Quality You missed the big picture. SoundTraxx: Technical Note #9 Speaker Polarity kzbin.info/www/bejne/b3THe6eagJ16e8k What happens if you mix up positive and negative speaker wires ? If you connect the positive wire to the negative part of the speaker, the sound wave reverses and travels as an inverted or reversed polarity. It creates destructive interfaces where sound waves often cancel each other and weaken the waves. Hence, some sound frequencies will not be heard in between the audio. Your SoundTraxx Tsunami-1 and SoundTraxx Tsunami-2 have (x2) "Purple Wires" ?

[@SoundtraxxDCC]

Polarity, while a factor in big installations such as concert venues and such, in what we do here it will not make much, if any, discernable difference. While the cone moves forward, it also moves backward. So the front of the speaker or back can be exposed to the outside air, and polarity will not make a noticeable difference. So, pick a wire as V+ and be consistent. Where it will matter most is if you are using multiple speakers. In this case, you want to make sure all V+ speaker leads get the V+ speaker power, or then you would essentially negate the use of the baffle as one speaker makes a positive pressure wave, the other would be inverse, so it would be drastic effects to the audio quality. But for our models, speaker polarity is not as important as it would be in much bigger installations. I hope this helps.

[@scentgrasslakerailway]

Great tutorial!

[@SoundtraxxDCC]

Glad you think so!

[@nalinpremaratna925]

Excellent .... video... Learned a lot about proper sound installation on Locomotives.. Thanks...!!!

[@SoundtraxxDCC]

:) we are glad

[@billmorgan6110]

SOUNDTRAXX: Mini Cube Oval Speaker/Baffle Instructions show (+) and (-) speaker terminals. My older SoundTraxx [DCC] {Yellow} decoder has a {Purple} and {Pink} wires.

[@SoundtraxxDCC]

Contact our Support Team. They can help you troubleshoot this: [phone] ext. 22 or [e-mail]

[@rogerwindsor2130]

Bigger the better

[@SoundtraxxDCC]

Yes!

[@billmorgan6110]

UPDATE: Question: What happens when you connect (2) speakers together with incorrect polarity ? Answer: The (2) speakers are out of phase. There are (x2) issues that come about from incorrectly phased speakers: A significant loss in bass. Out-of-phase wiring affects all frequencies and diminishes total frequency response equally, but because bass frequencies have such long wavelengths and move so much air, those are the ones you'll notice most.

[@SoundtraxxDCC]

Polarity, while a factor in big installations such as concert venues and such, in what we do here it will not make much, if any, discernable difference. While the cone moves forward, it also moves backward. So the front of the speaker or back can be exposed to the outside air, and polarity will not make a noticeable difference. So, pick a wire as V+ and be consistent. Where it will matter most is if you are using multiple speakers. In this case, you want to make sure all V+ speaker leads get the V+ speaker power, or then you would essentially negate the use of the baffle as one speaker makes a positive pressure wave, the other would be inverse, so it would be drastic effects to the audio quality. But for our models, speaker polarity is not as important as it would be in much bigger installations. I hope this helps.

[@billmorgan6110]

POSITIVE VS NEGATIVE: Does Speaker Wiring Matter? kzbin.info/www/bejne/e5auhWeveZiIjpY .... I have (1st) generation [DSD] Sound - SoundTraxx circuit boards. * SoundTraxx circuit boards = Speaker wires (Red & Black). * SoundTraxx speakers = Colored Dots (Red & Black).

[@gwrn7]

thanks for a very informative video, is there a reason why the cone type speakers are mounted in the sound baffle box facing out and the cube speakers facing into box? thanks.

[@SoundtraxxDCC]

No there is not a technical reason for this. Technically it does not matter which side of the speaker the baffle is on as long as one side is isolated. Most people mount the cone facing out because it looks better than the magnet and wires showing. The cube speakers are usually mounted facing in to protect small parts.

[@hellgatebridge]

Please clarify the difference between the terms "baffle" and "enclosure". I here these terms used interchangeably. To me a baffle is a simple flat piece of material were as an enclosure is a box.

[@SoundtraxxDCC]

A gasket is a flat piece of material with an adhesive on each side used to mount a speaker. Like double sided tape. A baffle and enclosure are the same thing - a three dimensional shape like a box (not always square or rectangular though). You can see these different products on our website: www.soundtraxx.com/access/baffles.php

[@infundere]

The baffle effect explanation comes at 5:50.

[@SoundtraxxDCC]

:)

[@gheorghecatalinapolzan8711]

2 or 3 inches speakers They have no bottom end really You get some bass from 6 inches up

[@SoundtraxxDCC]

Thanks for the feedback

[@zeppy13131]

Great video, dude-but for the rest of us who aren't necessarily into model trains, it would've been helpful if you'd mentioned something about that in your title, so we could've disregarded it in our search results.

[@SoundtraxxDCC]

Thanks for the feedback.

[@luminousfractal420]

sound quality 😂

[@SoundtraxxDCC]

:)