DIY LCR similar to HTM/F15? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 24 Old 08-19-2018, 08:55 AM - Thread Starter
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DIY LCR similar to HTM/F15?

Been itching to upgrade my LCR after building a few subs this year. I currently have a mismatch of speakers (def tech/bic) that sound weak for music and movies and looking to replace with something that can keep up with the subs with AVR power.
Subs are 2 VBSS and a full marty UM18 in a 4k cu ft basement running off an inuke 6000dsp

I wanted to build some HTM12 or fusion15 towers but I won $500 to PE so I figure I would try to build something on my own. The problem is I have no clue how to design crossovers so I am looking for a high sensitivity 12-15" woofer/waveguide design with parts I can buy from PE. I was looking at the deltalite woofers but not sure which CD/waveguide to go with it. Also would a prebuilt crossover like this work?

Eminence PXB2:1K6 2-Way Speaker Crossover Board 1,600 Hz
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post #2 of 24 Old 08-19-2018, 09:19 AM
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I would just buy from DIYSG, and use the PE credits to get more subs or amps dude.


or perhaps:

Two of these:
https://www.parts-express.com/bc-15f...-ohm--294-5981

Two of these:
https://www.parts-express.com/bc-de5...iver--294-5848

Two of these:
https://www.parts-express.com/bc-me4...-bolt--294-622

and then a crossover...

The SEOS is what brings the magic, you'll be missing out mega...
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post #3 of 24 Old 08-19-2018, 09:30 AM
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Obviously you haven't performed a forum search about building speakers and trying to use off the shelf crossovers. I agree with BTH on buying from diysg and use your $500 winnings on subs. Unless, you have lots of time, umik, enough amplification, and enough input/outputs from minidsp, you could go active crossovers. Did I mention a lot of time and patience and headache.

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post #4 of 24 Old 08-19-2018, 10:02 AM
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I think he’s asking for a proven design, there’s tons out there but I don’t think you’ll find one that is cheaper or better performing.


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post #5 of 24 Old 08-19-2018, 10:05 AM - Thread Starter
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Thanks all - buying from diysg makes the most sense.
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post #6 of 24 Old 08-19-2018, 10:24 AM
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You can use that 500 at PE for speakons, minidsp, unmik, duratex, and any other supplies to help with the diysg build or system optimization you desire.

If all else fails, I'll send you my shopping cart and shipping address
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post #7 of 24 Old 08-19-2018, 11:33 AM
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The 15" 2-way link in my sig fits the bill I think, though it's a bit more expensive than the diysg stuff.

I just finished converting a friends 3677 to something like that, but used hypex fusion plate amps instead of external amps/xover/eq.

2453h-sl cd, stx825 waveguide, 2265hpl woofer, fa252 amp

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post #8 of 24 Old 08-19-2018, 12:44 PM
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Might be able to sell the PE $500 for like $450. Risky sale for both parties though.
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post #9 of 24 Old 08-19-2018, 01:03 PM
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HTH ball park guestimates

$500 . . .

Umik $100

Duratex gallon (?) $70

50 ft spool of O2 free 14 ga. wire (monoprice $15

speakons

grills, magnets, feet,

if the credit has no expiration date . . .

the rabbit hole will consume it . .
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L/R: Fusion 15 V2 , C: 88 Special , SL/SR: 88 Special(V2) , RL/RR: F-3, TF/TR: Volt 6's TM: SLX, FH: F4Q4
SUBMAXIMUS V2, ,Submaximus V3,LOWARHORNCustom Dual Driver VBSS,2 x 6000DSP
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post #10 of 24 Old 08-19-2018, 05:37 PM
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Here is a build using the Dayton PA 12" midwoofer, Selenium compression driver and JBL horn

http://projectgallery.parts-express....1-loudspeaker/

It is based on the Econowave crossover but that is not mentioned--maybe the designer can be emailed or is on PE's forum Tech Talk with the details.

There are plenty of designs at PE so sniff around the site and the forums to get a good idea what is available and at what cost.

Good luck!
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post #11 of 24 Old 08-19-2018, 06:25 PM
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Now that you know you're getting the speakers from DIYSG, you need to figure out how to best use your $500 on subs.
You "only" had 3 in your OP.
Looks like you can do another Full Marty
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post #12 of 24 Old 08-19-2018, 06:33 PM
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Quote:
Originally Posted by asarose247 View Post
if the credit has no expiration date . . .

the rabbit hole will consume it . .
This, right here.
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post #13 of 24 Old 08-20-2018, 02:52 AM
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the econowave is a viable option here, only problem being age and sourcing the waveguides. there are designs and measurements (I believe) for the waveguide notnyt used in his pictured retrofit. there also is a work up on the Dayton audio waveguides. not quite the easy button diysg offers and since photobucket pulled their nonsense it's left quite a few threads hacked to pieces, but pete schumacher (DIYSG designer) and Zilch both posted design details publicly.
crossover example attached
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post #14 of 24 Old 08-20-2018, 02:54 AM
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not sure what happened to attachments
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post #15 of 24 Old 08-20-2018, 03:45 AM
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Quote:
Originally Posted by notnyt View Post
The 15" 2-way link in my sig fits the bill I think, though it's a bit more expensive than the diysg stuff.

I just finished converting a friends 3677 to something like that, but used hypex fusion plate amps instead of external amps/xover/eq.

2453h-sl cd, stx825 waveguide, 2265hpl woofer, fa252 amp

I just bought 3 units of FA503 amp. My understanding is the amp is not airtight so if you mount it at the back of your speaker, it might interfere with your ported or sealed design. Did your build sealed up the back of the amplifier so that it is in it's own compartment? I'm going to start my DIY 3 way speakers soon. Still waiting for Beyma TPL-150H tweeter.
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post #16 of 24 Old 08-20-2018, 04:45 AM
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+1 for buy something from DIYSG and spend the money at PE on other stuff. You know you will spend that $500 there anyway no matter what
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post #17 of 24 Old 08-20-2018, 06:29 AM
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Originally Posted by jcmccorm View Post
+1 for buy something from DIYSG and spend the money at PE on other stuff. You know you will spend that $500 there anyway no matter what
The "sledgehammer of reality" quote

True, I've never spent so much money "saving money" in my entire life! However, there is the illusion of saving money--my wife only tracks the driver costs and I nickle and dime my way by with glue, screws, tools, test equipment, wire, grill cloth, duratex and other odds and ends. A friend asked how much my mains cost, my wife jumps in with the exact cost of just the kit without the wood costs, grills, terminal strips and everything else required to actually build out the kit.

My subs are really cheap, she looks at just the driver cost with the wood, veneers, tops and PA amplifier not included in the mix. Everybody wins!

I'd look at the $500 as my amp, grill cloth, wire, cables, test equipment, handles, input terminals, glue, screws and DIY bits fund. Might as well get all the goodies you need to make it more accurate, quicker and less tedious as we always forget something.

If you still don't know what to spend it on, we can help you with that problem. It's what we do.
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post #18 of 24 Old 08-20-2018, 07:11 AM
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$500 from PE you say?

Sounds like a good excuse to build a UM18.

Or, if you haven't done so, room treatments.
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post #19 of 24 Old 08-20-2018, 08:16 AM
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Quote:
Originally Posted by 18Hurts View Post
True, I've never spent so much money "saving money" in my entire life! However, there is the illusion of saving money--my wife only tracks the driver costs and I nickle and dime my way by with glue, screws, tools, test equipment, wire, grill cloth, duratex and other odds and ends. A friend asked how much my mains cost, my wife jumps in with the exact cost of just the kit without the wood costs, grills, terminal strips and everything else required to actually build out the kit.
Well there's another sledgehammer for ya!

That's my situation to a tee. I've told my wife what the drivers and flatpacks cost. I might have mentioned the amp in passing (as not to draw too much attention to it). But between PE, Amazon, and Home Depot....well, I feel a little guilty I guess
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post #20 of 24 Old 08-20-2018, 08:59 AM
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Umik-1 and a minidsp HD would take a good chunk out of that. Invaluable tools for tweaking subs and measuring everything if you don't already have them. They also allow for us to help you out better if you have any questions down the road in regards to setup and performance.
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post #21 of 24 Old 08-20-2018, 09:06 AM - Thread Starter
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I've decided to buy room treatments from PE since I have a umik and extra duratex/ cables etc. Wife would be less than thrilled to see another full marty in the basement...unless, of course, I finish it as a table/entertainment center as some other members have done.

Going with some of the new 24x24" panels PE put up. Hoping for some improvement - getting a lots of echo with a handclap....
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post #22 of 24 Old 08-20-2018, 09:12 AM
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Originally Posted by rjyap View Post
I just bought 3 units of FA503 amp. My understanding is the amp is not airtight so if you mount it at the back of your speaker, it might interfere with your ported or sealed design. Did your build sealed up the back of the amplifier so that it is in it's own compartment? I'm going to start my DIY 3 way speakers soon. Still waiting for Beyma TPL-150H tweeter.
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post #23 of 24 Old 08-20-2018, 09:00 PM
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Thanks for the photo. Where you get the cover or DIY?
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post #24 of 24 Old 08-20-2018, 09:04 PM
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Thanks for the photo. Where you get the cover or DIY?
diy. printed it since there was a support in the enclosure in the way, otherwise I just would have used MDF.
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