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- AcousticTheory 5:44AM
- jholtz 5:44AM
- rjj45 5:44AM
- Tieftoener 5:44AM
DIY Plans 8"+1"
Looking for some well known or vetted plans for a 8+1 build to end my diy venture . I have been hunting the internet for a month now for "known brand" speakers and 8+1 are astronomically insane for pricing. I tired looking for ones that used the 10 stupid RS225-4 sitting in my basement going to waste, but seems that woofer is a pile to 2way without a gold mine XO.
I did see the Suzie-Q, but $63 just for the digital plans is absolutely stupid IMO-
Looking for something that wont be a little baby being able to be tuned to 40hz, I absolutely loath having to have subs on for music and having to turn everything on for music.
This will replace my garbage speakers in my theater- and end my speaker obsession hopefully until im rich or have not as many kids at home lol which at this rate wont be until im 80
Comments
The 225 are pretty good woofers. What are your requirements?
Yes from what I have read they're, If you have a massive XO or a 3way. After countless hours searching I think I found 1 or 2 plans and still they're 225-8 not 225-4. I want just something that can be tuned to 40hz, slim towers is fine, bookshelf is fine. Might lean more to soft dome, all I have now is metal and I think my tinnitus is not liking it anymore. I have no idea why I have tinnitus it just showed up one day 3 years ago and annoying me ever since
A4e did a bookshelf with RS225 in isobaric and passive radiator to shoehorn into a bookshelf config. That thing was pretty awesome. Relaxing the constraints to a larger volume cabinet like a tower should allow for a single 4ohm woofer in a ported config.
yes I have seen that, looked more like a normal PR, which is cool. Used RS225-8 not my Rs225-4. Also the tweeter, just shy $200 per- yikes.
Probably need to look at some 2 ~ 3" full range drivers and forget about a tweeter . . .
I did, I used the 10F/8424 & RS225-8 FAST / WAW Ref Monitor hence the rs225-4 withs a rs100. You need a lot of power, which I can do now but it was meh, sounding, muffled if you will. Maybe I should change title to 6"+1"+PR also lol. Outside of movies I listen to a lot of interesting music lol, Bocelli Enya Brightman jazz etc,
I am looking for know plans, I dont need to use my 225-4, as long as im not dropping $500 a pair in parts im ok, maybe $300 a pair in parts is my limit. I should have specified a budget/
Can't help with the 225-4 design, but my Zingers are quite affordable as they sit. They've been enjoyed by many.
InDIYana Event Website
For what you are looking to spend in XO part - here's everything under 400$, but doesn't use your drivers - Just add cabs. For the RS225-4 if you do not have measurement equipment or are near somebody who does or you can get to, the paid plan may be your only option.
https://www.jfcomponents.com/product-page/mac-466-speaker-kit-pair
Maybe trade a few of the RS225-4 to have somebody build a 2 way / 3 way and replicate. Most have the RS225-8 (I do too, but not the RS225-4 as you are discovering). Do you have any size or height restriction? Why a 2 way?
LOL, that is what I am thinking.
@Bergarth, a few questions...
1) Do you still have some of the other drivers you were originally trying to unload...specifically the RST28-Fs and maybe RS100-8s?
2) You say this is for your home theater. Are you looking to build just a stereo pair or more?
3) Do you have access to a 3D printer (not really that important but helpful to know)
4) Does it matter if it is a standmount (i.e., large "bookshelf") or tower format?
Anyone have some insight as to why the -8 is more popular than the -4? Just lines up with mids/tweeters better?
I would think of at least 2 reasons. (1) When they are used in pairs, wired in parallel, like in the Statements/Statements 2 and Anthology/Anthology 2. (2) Every amp can handle an 8-ohm speaker but not every amp can handle 4-ohms, so I would think 8 ohm versions usually outsell 4-ohm versions but no idea if this is really the case.
The 8 Ohm drivers usually dig a little deeper in FR and are more useful in pairs from what I have gathered . . .
@Wolf Ill check those out thanks-
yea guy i dont care about RS225, ill get a new woofer if I have to- Ill use it if there was away
@a4eaudio yes i have 4 RS100/8 and a few RSt28F
no 3d printer Edit actually i know someone with one but 4hours away lol so it would really have to be a worth it drive
ill be building 5-7 speakers- maybe more.
stand mount or small foot print tower is fine I cant have really big speakers.
@ani_101 no real reason why a 2way other then I assumed costs. Since I have a budget around $200-$300 pre speaker. beyond that I can just buy Open box speakers and be done with it lol, but not what I want.
The "Obsidian" two way with the RS225-4 and Vifa TC-7 designed by Dan Neubacher (sp?) won its class in a Parts Express speaker design competition a few years ago.
Paul Kittinger's "RS Duets" two way with the RS225-4 (I think it was the 4 ohm version)and RS28F (NLA) won its category in another PE competition, so it's do-able. Not sure how the RST28F would compare, of course.
Geoff
I would definitely hold on to those RS225-4 woofers. They really are quite good, and you would need to pay a lot more for better (Satori / Wavecor / Scan) woofers. The problem is finding a tweeter that can match up to them. A waveguide would certainly help. I built a RS225 / Vifa DX25 MTM and they sounded awesome. You might could make a TM with those drivers based on my crossover.
I will never suggest that anyone should build one of my designs, that's just indecorous IMHO. But I am usually willing to suggest someone could use a driver that I have used in a previous project that I think would also work well in their own project. That said I think you could build a fantastic sounding 8" two way with your RS225-4 woofers and the Peerless DA25TX00-08 tweeters. I have used them and their larger brothers, the DA32TX00-08, in projects and loved them. Their slightly lower sensitivity won't be an issue due to baffle step loss, unless of course you are building inwall speakers. Hope this helps.
Only downside is they are out of stock until maybe 5/2/2025
I am really liking that Finch IIIA design by Michael Chua - suggested over on DIY by Ugg10 @ post # 5 --> https://www.diyaudio.com/community/threads/diy-plans-8-1.423015/
Need to contact Michael for the cabinet/XO design but it is free for hobby speaker builders and he knows his stuff.
https://ampslab-spk.com/2025/01/23/finch3a/
Contact --> ampslab@hotmail.com
The Wavecor TW030WA12 is out of stock until top of March (not far away) --> https://www.parts-express.com/Wavecor-TW030WA12-30mm-Semi-Horn-Loaded-Textile-Dome-Tweeter-with-Rear-Chamber-8-Ohm-298-1122
@Steve_Lee I sent him an email, hopefully ill get word. Heck i could make 10 lol- I run 11 speakers as is
@PWRRYD @rjj45 didn't see your builds
but im also a slow brain most days. 5kids and prego wife ugh.
@Bergarth - I sent you a PM.
Crap, the MTM I built used 2x RS180. Sorry for the mixup.
@Bergarth do you have the ability to measure speakers? If so build some speakers post some measurements and let the comunity take a stab at it. While there is no replacement for listening to a speaker, with some feedback we could probably get you a decent sounding set of speakers. Much like InDIYana a few years ago.
A wave guide and the SB26 tweeter of your choice might be a good option: https://www.somasonus.net/sb-acoustics-sb26 If you need help printing I can probably assist.
>
I don't see how suggesting something directly within the constraints of the OP's query is less than acceptable. The source designer was irrelevant amidst the criteria, and the OP thanked me for my thoughts.
InDIYana Event Website
Thanks Wolf, I couldn't figure out how to respond without getting defensive.
Hey @Bergarth - I've got a pair of the small faceplate Wavecor TWO30WA tweeters on the shelf.
$30 each plus shipping and they are yours.
I wouldn't feel too wierd about offering a design I came up with. But IMO none would stack up to any of the other designs suggested, even on bang for buck.
99% of every design I ever built has NLA drivers. So, not useful for most.
Sorry guys, dad life.
@kenrhodes I have umik 1 thats about it. I borrowed an acquaintances DATS3 when I was trying double
rs225-4/D220ti. Seem only place I can get 85-90% usable measurements is basement floor on carpet laying down facing ceiling that has some old stuff but i have a few foam pieces there, mic 16" away about center from woofer/tweeter. I actually did pretty goo, I think- but its a metal dome CD lol, Green line is my rew verification sweep. But still my sims were off- CD is inverted but in SIM it is wrong and inverted gives null, but IRL inverted is flat. Padding sims were always wrong, So long story short LOTS of trial and error time I have limited of. So I unloaded my horde of XO parts to stop my self. I added my xsim and data, obviously I had to add dot txt to the end of my xsim file
no blender jsut near field measurement woofers- Also that was double woofers, not sure what I was thinking, I would have required a 2-2.5cuft box if i am not mistaken. I do know my Klipsch R series are becoming annoying, and these JBL aren't pleasent, which also could be the Dayton Audio H6512 I did sprey glue and slap a cheap foam square to a couple to test becasue they're tappy resonate little buggers IMO.
@DrewsBrews never know man... at least you didn't do a me and think I could build something based off of manufactures data and waste money. I think I did that like 3 times so defiantly didn't learn
I have felt the same pain as you. Learning all this was quite the struggle for years. I'd get so fed up I would put the hobby down for a few years until getting the itch again. I wasn't able to get finished simulated projects to measure anywhere close to reality until I figured out acoustic center calcuation. I never figured out how to do that in PCD, so I had to bin it and move to WinPCD.
I got a sense of alot of gatekeeping in the hobby. Not necessarily intentional though. The subject is so vast with so much minutia that it is difficult for a newb to even be able to correctly articulate a question that someone with more experience can understand precisely. And possibly equaly difficult to articulate the answer back in a way that can be understood without a bunch of jargon.. looking like an a-hole that just wants to punish the newb for not knowing X or Y. Then you have all the pseudoscience out there posted online to muddy things even more. So it would take me months of online research to find the answer to seemingly minor questions.
I have worked with the D220ti. I remember seeing a padding discrepency too. I think it is just soo sensitive that the calculators have a hard time estimating how the padding will affect it. Starts to invoke chaos theory. So I ended up just putting an adjustable l-pad on it.
You need some way to get the in-box impedance data. I now have a DATS, but for a long time I'd just use a super cheap LIMP box that I built, and ARTA demo version software. I'd take a screenshot and use a manual tracer program to create the zma file. Was not fun but it worked.. I guess.
Here is my attempt to copy an old Klipsch 8" 2-way, adapting to a large bookshelf instead of tower. The woofer is normally $50 (currently on sale for $40) and the tweeter is only found on ebay since p.audio hasn't realy broken into the US market. Tweeter price swelled to almost double what I paid ($30 plus shipping now). For $70-80/ch I would guarantee there are better bang-for-buck driver combos out there. However I still have a soft spot for these... they are fun and get pretty loud. Funny enough, now a tower would fit my living room configuration much better than the bulky bookshelf.
https://diy.midwestaudio.club/discussion/2208/the-tuxedo-t-shirts
Looking at "I did good" This looks like a little tuning on the woofer roll off and you might have a very nice-sounding speaker. Your impedance looks like a sealed box?
Please describe what you didn't like about this speaker.