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Discussion Starter #41
Okay, hope the pics work. These pics were taken after all the hard work and lugging this back breaking 45kg cube into the house from the garage! Pls note that my woodworking/sub building skills are that of a newbie, (need to fix that veneer blemish), but this has been one great experience and am in a way looking forward to building my next.. :)

Top & Side view of the cube:


Front view:


Back view:


Cube stuffed with speaker stuffing view:


Front view with speaker assembled:


Sub in with the rest of the gear:


cheers guys!
 

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Tested the sub to see if it was operating etc.. Temporarily connected the sub pre-out into one channel of my power amp (rated at 130w per channel at 8ohms) Suffice to say, the sub works well and on music, the lows are less boomy and much tighter than my 12inc Dayton DVC on 250w's PE plate amp. Still not as loud as I would like it to be, but when my EP2500 arrives, then i can make a better comparison. I can feel that the sub wants more power!
I just built one very similar to yours. 150L sealed with the 18.2. I am using the EP2500 bridged and a BFD.
Yes it is tight and great on music but I have found to get an acceptable level that I have to increase the db's by 6 for the sub level at the avr. I was expecting more and am wondering if I should rebuild going ported.

It does sound great, especially for music, but to be truthful my HSU 3.3 sounds better in the HT area.

I will give it some time to see if it loosens up any and gets louder. Please let me know when you have the EP2500 hooked up to it if it still is lacking in the loudness.
 

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Mate, that veneering looks pretty interesting, I was considering bamboo veneers at one point but too exe it's a similar effect you've got though - Good job. Where did you get it / how much?
I like the overall size ratio of box to speaker, it's reasonably compact as well. I reckon for a first go it's excellent.
Hopefully your EP2500 will turn up soon, it's so frustrating living in OZ where you have to special order everything. More power, more power please, it's crying out isn't it :D
 

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Discussion Starter #45
My old 12inch diy Dayton DVC with the PE 250w amp took about a month or there abouts to break in, but thats because i've only used it about 30mins a day from the day it was built. I know it will take a while to break in, but when it does, i'm sure u'll be impressed. Have you got any sweep tones from 10-100hz? Try using that if you havent
 

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Discussion Starter #47
Thanks Mate,
Standard veneer packs of Bunnings, its Riadata wood veneer but like you said it looks similar to bamboo, it cost $10 from there and a mate of mine got some from his work place for free and i supplemented the rest from Bunnings. It took me about 10 packs to veneer the box on the top, sides and front. I didnt veneer the back and bottom (obviously) to keep cost down.

I still need to apply a thin layer of laquer to finish it off. Box size is just right for the driver. I think u'll find that the outter baffle on your build might oversize the front of the driver. Maybe get 12 or 16mm MDF and rout it to size for a better flush fit and finish.

Mate, i tell u, this driver cries out for power, i'm itching for my EP2500 to arrive before xmas but will see if djwarehouse delivers it on time. Just listening before to U2's Joshua tree album, and already i can tell the sub is much more controlled and articulate with the bass on each song, and this is only with 130w! :)

Oh, and this thing breaks backs with the driver installed. I'm feeling it today just lifting it here and there to work out a good place for it..
 

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Discussion Starter #48
Ok..been busy running around for Xmas stuff and etc...managed to work on the bottom plate and the legs today. Pic's to follow once the mdf glue has cured overnight. Got a call from the place which i've ordered the EP2500..they said that they're not in stock and i pointed out that on thier website it states that the unit is available. And the store guy said that they had 'just' ran out. And i said, i've placed an order 3 days ago and that they'd rather priority service store front customers than those whom order online. He quoted a 1mth wait from Behringer before they get any in stock. I told them to cancel it if they cant service my order on time. He tried to sell me a Crown amp, but thats out of my budget at over $1000!

Bah!..now i'll have to call up some local stores to get either the EP1500/2500.
 

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What bad luck, good job you phoned. See if storedj will price match. They're just over the road so will be keen to beat the opposition, assuming they have one! I picked my amp up in person.
Otherwise there is this place where hopefully I'll get a processor. Not sure on delivery costs, vip price of $519.
 

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What bad luck, good job you phoned. See if storedj will price match. They're just over the road so will be keen to beat the opposition, assuming they have one! I picked my amp up in person.
Otherwise there is this place where hopefully I'll get a processor. Not sure on delivery costs, vip price of $519.
Alans music will sell them for $600 which is good considering the postage will probably add up to $560

I buy from them because if anything goes wrong i dont have to post back blah blah blah i just head in and they have always treated me very well so give Alan's Music a call :T
 

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Discussion Starter #51
I will do that tomorrow since I'm on leave till next year! :D
The best price so far is around $550 ex postage, but i can just go over and pick it up to save me a couple of $$$.
 

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Discussion Starter #52
Phew!..finally have some me time to do this. Just finished up with the bottom plate and pic is attached below. Now, to finalise my sanding of some edges and to laquer it.

file.jpg

 

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That is some good looking work you have done there... :T

We will also want to see some REW measurements at some point in time.
 

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Discussion Starter #55
Cheers Guys! Its my first sealed build and looking forward to another..cough..*LLT*..cough in the future.. :)

Will go out this morning to get an EP1500/2500 & BFD around Melbourne..hope they have them in stock. Will definately get REW done and post up some graphs.

Did run it in with a 100-5hz sweep tone on repeat for an hour yesterday. One thing i could immediatly tell is that this driver needs some juice and as Mike said earlier, this baby needs around 900w to be in the optimal zone before overexcursion kicks in
 

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Discussion Starter #56
Ok..the Ep2500 arrived this morning! Took it out and boy does this thing weight a bit..nearly 17kgs..

Managed to hook it up quickly as i'll be busy with xmas duties etc. After playing around with it for about 1hr, i found that:
- the sub sounded best in mono bridged mode with the volume at 11o'clock mark.
- the fan is way too loud. Waiting for my fan order to arrive to do my fan mod.
- the sound is awesome for music (fast, rythmic and punchy bass)
- HT sound is quite good and tight, bass not as "loud" as i'd imagine, but going ported would probably do justice to this. Had to increase the subwoofer volume on the AVR to +6db to get it to sound just right at my regular -20db listening level. I'm pretty sure that the sub will sound better once the coil's loosen up with frequent listening.

- Tried the low pass limiter dip switch on the amp at 30hz setting and 50hz setting, the sub sounded boomier, so i set the filter to "off", but kept the clipping dip switch set to "on".

Will keep u guys up to date with my progress. Btw, the EP2500 is sitting on the sub's bottom plate and its a snug fit in height and width level. Will take a pic to show this. It also marginally minimised the fan noise too..what an unexpected benefit..:D
 

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Hi Shogo,

Well done on your first build - it looks teriffic!

You'll love the fan mod - I used a super-quite 12v computer case fan and a 12v IC regulator (and couple of capacitors) - cost $9 fan, $2-3 parts.

I recall getting my BFD from Allans Music for $149 earlier this year - online price made it a bit cheaper (you can order online and go in and pick it up).

Don't forget to remind your missus how thoughtful you were to hand-make her Christmas present this year :heehee:

Cheers,
Sam
 

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Discussion Starter #58
Cheers Sam,

I've ordered a 21db 24VDC fan but the order hasnt arrived yet, suspect the usual xmas period delays etc.. Wow, thats really a great price for an EP2500! I called up Allans but they didnt have any in stock in Melb so had order it directly from Behringer (pretty much the same with most music stores across Melb at the moment.

I've had the in-laws over yesterday and they were impressed with the build and the sound just blew them away. I've used Transformers the movie on bluray the final battlescene in the city just threw them some gut-wrenching bass :D.. The funny thing was that the missus was more impressed with the cabinet fitting in with the rest of the furnishings than the awesome bass...go figure!..lol
 

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Actually, that wasn't a price for an EP2500 (that would be good!) but the Feedback destroyer Pro eq unit :) Thought you mentioned that you may be interested in eqing at a later date.

Well, let's face it, looks are more important than performance...:coocoo:
 

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Discussion Starter #60
Lol...u did say BFD :heehee: my bad..must still be in the xmas spirit of things, too much food and grog in the system.

I'll check out Allans for the BFD, as the best online price for a BFD i've seen is $245 so far as eq'ing will get the best out of my build.
 
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