Navin:
I think that by using many capacitors in a paralleled bank may reduce error, I believe that 10 caps @ 20% in parallel will result on 2% bank, also it reduces loss due to heat I think. And maybe there's an even better response for a bank than a single cap.
Well, i'm too new on this, I'm just trying to think and guess what maybe could be a possible reason for so many caps.
I like the idea
I think that by using many capacitors in a paralleled bank may reduce error, I believe that 10 caps @ 20% in parallel will result on 2% bank, also it reduces loss due to heat I think. And maybe there's an even better response for a bank than a single cap.
Well, i'm too new on this, I'm just trying to think and guess what maybe could be a possible reason for so many caps.
I like the idea
I'd expect it to be a sonic reason, and not so much a technical one. Many parallel caps could make it impossible to hear the signature of any single cap.
Simon
ps. I once put something like 22nF PP and 300pF silvered mica alongside a couple of bigger caps and the effects were subtle but I felt positive, if anything.
Simon
ps. I once put something like 22nF PP and 300pF silvered mica alongside a couple of bigger caps and the effects were subtle but I felt positive, if anything.
Simon is partially correct. The main reason I use different (always high quality) caps are the individual cap. signatures become blended. I try to use PP & PS & Teflon in parallel to balance the different characteristics. Different capacitors have resonances at different frequecies so the combination may add/subtract to neutralize any specific resonances.
Seconadary reason is the values available to use... Teflon is good only up to 0.56uF (Popcan size!) while Polystyrene is good up to 1.0uF and finally PP can be had up to 300uF. So I try to keep all Solen capacitors out of the Midrange & Tweeter signal's path because they have a tendency to sound non-ideal. I find Clarity PP & Polystyrene and Teflon bypasses to sound best here.
And finally I wanted use the capacitors that I had since I had already spent over $300 on the crossovers alone!
Seconadary reason is the values available to use... Teflon is good only up to 0.56uF (Popcan size!) while Polystyrene is good up to 1.0uF and finally PP can be had up to 300uF. So I try to keep all Solen capacitors out of the Midrange & Tweeter signal's path because they have a tendency to sound non-ideal. I find Clarity PP & Polystyrene and Teflon bypasses to sound best here.
And finally I wanted use the capacitors that I had since I had already spent over $300 on the crossovers alone!
Hi all
I got this speaker system done few weeks ago but have tested it only few times. So far the impressions have been quite promising although measurings I´ve made havent´t been too professionally executed. Much of the equalizing and adjusting is done with just listening. Bass region is maybe lacking the final punch but above those frequencies there is exceptional precision and imaging. Tweeter is really smooth and realistic without any hint of hardness or risk of listening fatique.
The 7" woofer and 1" tweeter are ceramic Accutons. The setup is active and done with Hypex AS2.100. Internal volume is roughly 16 litres and tuned to 45 hz. Enclosure design is my own making and done with 21 mm sheets of Finnish birch plywood.
I got this speaker system done few weeks ago but have tested it only few times. So far the impressions have been quite promising although measurings I´ve made havent´t been too professionally executed. Much of the equalizing and adjusting is done with just listening. Bass region is maybe lacking the final punch but above those frequencies there is exceptional precision and imaging. Tweeter is really smooth and realistic without any hint of hardness or risk of listening fatique.
The 7" woofer and 1" tweeter are ceramic Accutons. The setup is active and done with Hypex AS2.100. Internal volume is roughly 16 litres and tuned to 45 hz. Enclosure design is my own making and done with 21 mm sheets of Finnish birch plywood.
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Hello Dorin,
I remember seeing your system on a local forum a couple of years ago. I bet it sounds well!
By the way, I remember Dr. Geddes and Mr. LeCleach advising to mount horns and waveguides on baffles (even ones with proper roundovers). It seems it helps with diffraction effects.
Good luck with the future developments of the system!
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@ Tuakko, that is a very, very nice layered enclosure. I bet it's stiff. I think that is one of the best techniques to build an enclosure.
I remember seeing your system on a local forum a couple of years ago. I bet it sounds well!
By the way, I remember Dr. Geddes and Mr. LeCleach advising to mount horns and waveguides on baffles (even ones with proper roundovers). It seems it helps with diffraction effects.
Good luck with the future developments of the system!
edit:
@ Tuakko, that is a very, very nice layered enclosure. I bet it's stiff. I think that is one of the best techniques to build an enclosure.
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Hi everyone!
This is my first post in the forum and I've decided to use it up in this thread by showing you guys my very first DIY projet!
Over the past few months I've been working on the Low Budget Speaker design by Tony Gee. It felt just right as a first project: simple, not too expensive and displaying more than enough quality elements in the design. XOvers feature all Mundorf components, the tweeter cap being a Supreme Silver/Oil (I decided to spend a bit of money on this department).
The speakers are paired with a Unison Research Unico P amp. I'm extremely happy with this piece of equipment! It gets along very well with the LBS speakers.
CD is an old but perfectly functional Sony deck and the turntable is an even older Denon DP-35F.
This is my first post in the forum and I've decided to use it up in this thread by showing you guys my very first DIY projet!
Over the past few months I've been working on the Low Budget Speaker design by Tony Gee. It felt just right as a first project: simple, not too expensive and displaying more than enough quality elements in the design. XOvers feature all Mundorf components, the tweeter cap being a Supreme Silver/Oil (I decided to spend a bit of money on this department).
The speakers are paired with a Unison Research Unico P amp. I'm extremely happy with this piece of equipment! It gets along very well with the LBS speakers.
CD is an old but perfectly functional Sony deck and the turntable is an even older Denon DP-35F.
An externally hosted image should be here but it was not working when we last tested it.
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Looks good! I've always rather liked the look of that design, or in particular that woofer. Such a smooth and extended response and good bass performance in a rather low cost driver is very attractive. How do you find the sound? Does it have much detail or is it more of a "smoothing things out" sort of sound which is easy to listen to but mabye doesn't have so much resolving power?
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.
I mailed Tony Gee about the tweeter and he suggested mabe trying the Seas H1211-06 27TDF or even the Seas Excel E0011-06 T25CF002, but this last one may be overdoing it a bit. I'll probably rebuild the whole thing this summer, making a more solid cabinet and trying some other tweeter out to see how it feels.
Cheers!
Hi! Thanks a lot for the compliment
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!
Thank you very much! Although I must say that 99.9% of the credit must go to Mr. Gee and his great design.
You're welcome!Thanks for the details Oscar! Sounds good
You must show us pictures and descriptions of the build. That is quite the cabinet.
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!
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?
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?
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.
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.
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.
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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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
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