DIY crossover upgrade on a garage sale Yamaha AP4400M

[@RickBolt]

Wow what a difference. The clarity can be heard even through all of the KZbin compressio

[@RickRuizAudio]

Yeah, It really can make a difference. Thanks for watching 👍

[@user-px5ew7iq5r]

❤ wow i can hear the difference! Thanks

[@RickRuizAudio]

Thanks for watching!

[@stopher1971]

I just built the Xls encores 6 mo ago and used 14ga air cores clarity CSA for LP shunt cap, and jantzen AluminZ cap on the tweeter and Russian PIO bypass caps and it’s really hard to believe what I’m hearing, there is just no way at this price point, some Corian enclosures heavily damped 31lbs each ….that said, it will be very difficult to find another build or finished speaker that will even compare , these compete with any BS/SM speaker at ANY price point period Anyway, I like the way you just nonchalantly with a few parts completely turned those Yamahas into something worth keeping and 100% affordable, A pair of those speakers on eBay is between 20 and $40 a pair in great shape

[@RickRuizAudio]

Yeah, those XLS Encoores are great. Nice job on the xover. Most people still don't think caps matter, just like they didn't believe opamps had different sound signatures. Now everyone wants to "roll" opamps. It just takes people to listen to the changes these caps make. It's just easy to hear how things totally open up. Thanks for watching. I appreciate it 👍

[@stopher1971]

Different brand caps and cap materials along with manufacturing process absolutely has has an effect on sound characteristics, I have to ask, What’s an opamp? Is this another name for a term that I already know?

[@thelostvalley]

Very pleasant and didactic video for an introduction to up grade speakers.

[@RickRuizAudio]

Thank you and thanks for watching! 👍

[@bbfoto7248]

Wow. The Crossover points that Yamaha chose for these are crazy, in addition to absolutely no filtering on the woofer! Just goes to show how much all of these types of speakers are made to hit a low manufacturing cost and price point first and foremost...especially seeing the extremely cheap (15¢) single, tiny electrolytic caps they used! Just from casual listening, I would want to pad down that tweeter At Least another -3dB, and probably closer to -6dB. YMMV But your experiment demonstrates that really great sound CAN be achieved even when using really inexpensive drivers in a cheap cabinet IF proper crossovers are used. I doubt any of the drivers used in this speaker cost more that $5 wholesale from the OEM. This is exactly what Danny Richie at GR Research specializes in...making his cheap drivers work well together by using decent Crossovers and good enclosure/baffle design (for the most part) in order to maximize his profits. SMDH at Yamaha for this one. Cheers

[@RickRuizAudio]

Yeah. I agree 100%!

[@tomasmikeska]

wow, this really makes a difference, thank you for great video. I'm thinking to upgrade crossovers I my old B&W DM305, but not sure how to calculate induction for coils - there is no value on original ones. Can I keep the scheme, just replace inductors and capacitors? thank you

[@RickRuizAudio]

Hey Tom, yeah, first step would be to just follow the schematic. Then if you really want to tweak the sound, you'll need a tool to read the parameters of the drivers and design your own crossover. That's when you should take a course on crossover design. I do recommend it, as to me it's fun and gives you a better understanding of what's going on in the speaker to give you the sound you are looking for. Thanks for watching. I appreciate it.

[@tedjones112]

Now find a pair of JVC SK-404 cabinet speakers and show me what you'd do for them...........

[@RickRuizAudio]

I'll be on the lookout, Ted! 👍 Thanks for watching as well.

[@olasumbo2663]

Omg. GR research wont be happy. 😂😂😂 Honest and brutal physics tricks applied to speaker systems.

[@RickRuizAudio]

Lol. I don't see why it would bother them. Danny inspired me to try this. Besides, he'll do a much better job and designing a more accurate crossover. This 1st order isn't meant to make these studio monitors, just more enjoyable to listen to. Thanks for watching! I appreciate it. 👍

[@olasumbo2663]

@@RickRuizAudio hahahaha. You are very humble. My point is that you are showing people the process and the required parts for free as free information. You are also showing us the experiment in real life. No fancy graphs or claims of magical ear. Just straightforward audio science. I love it. You should post more content like this. I'm a physics head myself so I like it when I see folks breakdown simple physics and it application in real life.

[@RickRuizAudio]

@@olasumbo2663 lmao. Aahh! 🤣 Hey, I'll post the schematic next time! 😂 No, but jokes aside, I would have to put a disclaimer that this is an amateur attempt, because it's rough out here in KZbin land. People will probably jump in to say what a poor design! I do have plans to do another. I found some Technics speakers from 95 but the guy wants $50 for them. If I can talk him down, I'll get them and post a video on that one as well! Again, I appreciate it!

[@olasumbo2663]

Hey man. You cannot never let those comment bothers man. KZbin can toxic sometimes, especially from people that cant even review water. Lol. However, your for similar content soon is a wonderful idea. Another one in the making.Hooray!!! . Showing basics relationship between resistors, capacitance and inductor, and how they affects or theirpurpose in a crossover network for speakers. You can also find a fancy name for the video. Eg. Cheap Cross over DIY ideas. DIY on the cheap. Etc

[@quikspecv4d]

Was the midrange driver sharing the same cabinet as the woofer?

[@RickRuizAudio]

Yes it was.

[@johantaljaard6722]

How do u calculate frequency going thru based om capacitance/mH and speaker impedance?

[@RickRuizAudio]

There are formulas online that will give you the electrical parameters. That's a starting point. But then you'll need the speakers parameters as well as the box to calculate more precise measures for your specific project. Check out Toids DIY Audio video on XSIM. Or Audio Judgements channel is great as well. I do recommend his Udemy courses. He gives you excel spreadsheets that help w some calculations.

[@RoverWaters]

👍👍

[@RickRuizAudio]

🙏

[@edjackson4389]

Change the name of your channel to Ritchie Danny 😄

[@RickRuizAudio]

😂 lol