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Multi-Way Conventional loudspeakers with crossovers

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Old 12th April 2010, 04:50 PM   #1791
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Originally Posted by Oscar Hinde View Post
Hi! Thanks a lot for the compliment You're right in saying that those woofers are the highlight of the design. They sound quite detailed indeed if you consider what I payed for them. Midrange presentation is very decent. I wouldn't call them a background music speaker at all: they allow for pretty intense listening sessions, eyes closed and all . It's quite easy to distinguish different instruments of similar character on them. I was listening to a mix of a band I'm working with the other day: we had two accoustic guitar tracks doing the same rhithmic pattern for a sort of natural chorus effect. I could distinguish the two spearate instruments perfectly among the rest of the band. Actually, guitars, pianos and other midrange inclined instruments sound really, really good on them, so that tells you quite a bit about their capabilities. I'm listening to a lot of piano sonatas since I installed them, lol. They are surprisingly dynamic too, and they can play quite loud indeed retaining all their clarity. Mabe the bass can get slightly overpowering and even dull at times but that probably has more to do with my room than anything else. I'm going to be moving to a larger house soon so I haven't really bothered about spending much money on room treatment.
The tweeter also behaves well although it's definately the weakest link of the speaker. I'm an audio engineer by trade and I've worked on many different studio monitors. This tweeter lacks the capabilities of some of the other tweeters I've heard but we have to keep in mind that I payed 30€ for each. So all in all it's a great sounding speaker. Ridiculously good considering the cost, actually.

Cheers!
You should be proud of such success with your first build. Congratulations!
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Old 12th April 2010, 05:30 PM   #1792
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Thanks for the details Oscar! Sounds good
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Old 12th April 2010, 09:23 PM   #1793
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You should be proud of such success with your first build. Congratulations!
Thank you very much! Although I must say that 99.9% of the credit must go to Mr. Gee and his great design.

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Thanks for the details Oscar! Sounds good
You're welcome!
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Old 12th April 2010, 11:21 PM   #1794
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Originally Posted by Tuakko View Post
Enclosure design is my own making and done with 21 mm sheets of Finnish birch plywood.
You must show us pictures and descriptions of the build. That is quite the cabinet.
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Old 13th April 2010, 07:21 AM   #1795
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measurings I´ve made havent´t been too professionally executed.
Well, your measurings might not be too professional but your construction quality is impecable! It looks stunning. Congratulations!
You could share those measurments though. I'm quite curious! And I agree that some pics of the build would be great!
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Old 19th April 2010, 01:10 AM   #1796
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okay i dont have pics of my setup at the moment but i will describe it anyways.
2 behringer B212A's for tops.
2 behringer B1800X pro's for bass and sub bass
2 behringer EP2000's for powering the subs.
this is all run through a 31 band stereo EQ with sub XO for the sub amps.
the tops are usually 6 feet off the ground on stands. my audio gets off my computer through an external soundcard. the audio 2 DJ from native instruments. which runs through a 5 channel numark DJ mixer.
keep in mind none of this is DIY as well as this is also my DJ rig. ill post up pics later on when i get some.im considering getting a dedicated racmount XO and putting it before the EQ in the signal chain. would you reccomend that?
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Old 19th April 2010, 04:17 AM   #1797
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Hi mullet,
I'd get a DCX and if you want to EQ full range you would want to put the eq before the crossover. A good combination would be DEQ and DCX where you use the digital output from DEQ as input to DCX. You can set up a mic and run autoeq and quickly get the system sounding balanced in different locations. I use this on my home audio setup and use DEQ to create a house curve. 5 minutes and you have a big difference. The other thing I'd try is reticulated foam in the horn. Apparently it gives a big improvement with only a small reduction in output.
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Old 23rd April 2010, 09:57 AM   #1798
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Hi

As it is my first project i think i have done fairly well and they sound excellent.

Jaycar 25mm Dome Tweeter
Jaycar CW2196 8" Woofer

and they are powered by an old Playmaster amp that is still working surprisingly well.
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Old 24th April 2010, 04:50 PM   #1799
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The EEE students setup: not enough space for big speakers so utalising their bass cabs as subs and some mission 760i as mid/high.
Crossover is done using foobar plugin atlhough I would idealy use an external spdif fed unit for crossover to simplify software. Amps are a marantz 40+40W cheap off ebay and a 50W Aiwa reciver systems power amp I gave improved grounding and bypassed the need for the rest of its stack.
Future plans are homemade digital crossover unit/dac and a "Real" subwoofer amp using the 0.3F of 100V capacitance I have in the cupboard. Overall a vey cheap setup with great bass exstension although the crossover in the 760i's is not great and results in a 3.5Khz notch filter which makes the midrange mushy.
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Old 24th April 2010, 08:42 PM   #1800
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I've found that the midrange of the 760i speakers isn't bad. I found that the treble suffers most, if they've seen years of use.
I think the crossover caps are to blame, but I'm not sure.

An idea to try with the Missions - reverse the phase of the tweeters. The notch at 3.5kHz would be down to phasing issues, so perhaps this would help.

Cool subwoofer.

Chris
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