[NEW] Serge Resonant EQ for Euro by R*S

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the bad producer
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Post by the bad producer » Fri Aug 30, 2019 3:05 am

aragorn23 wrote:Hey all, possibly a silly question but are there any cheaper opamp options for this? Would using something like an 072 work at all?
Not a silly question, the original used LF353's, you can use 072's too...

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Post by aragorn23 » Fri Aug 30, 2019 4:17 am

the bad producer wrote:Not a silly question, the original used LF353's, you can use 072's too...
Great, thanks!

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Post by aragorn23 » Sat Sep 21, 2019 10:09 am

Hey all, my Resonant EQ is working beautifully (even with cheap 082's in it) apart from the 11k band, which doesn't seem to do anything. Any suggestions of which caps/etc. to check for this band?

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Post by search64 » Sat Sep 21, 2019 11:51 am

Image

11k band has two 220p caps, 15k4, 68k and 10k resistors. So that’s the bottom right part when looking from the back. If you’ve used styroflex caps, try touching or slightly moving the caps to see if the band starts working again (put it in feedback mode and turn all bands down and only 11k all the way up, turn your monitoring volume down to avoid hearing damage). The styroflex caps sometimes have bad connections which is why I avoid them. Not really worth the hassle, plus they’re way too big often.

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Post by aragorn23 » Sat Sep 21, 2019 12:20 pm

search64 wrote:11k band has two 220p caps, 15k4, 68k and 10k resistors. So that’s the bottom right part when looking from the back. If you’ve used styroflex caps, try touching or slightly moving the caps to see if the band starts working again (put it in feedback mode and turn all bands down and only 11k all the way up, turn your monitoring volume down to avoid hearing damage). The styroflex caps sometimes have bad connections which is why I avoid them. Not really worth the hassle, plus they’re way too big often.
Thanks, I was wondering where to find that circuit diagram! I'm suspecting that the issue is that I used film for all the other caps and, ahem, ceramics for the 220p's... I didn't have any 220p film caps around and I was impatient :hihi:

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Post by gtrmstr53 » Mon Nov 25, 2019 8:06 pm

XAXAU wrote:Anyone know if the mouser cart posted early in this thread is accurate?

http://www.mouser.com/ProjectManager/Pr ... ?AccessID=

Also, are polystyrene caps from Mouser "up to par"?


Cheers!
Does anyone know if this is still accurate/adequate?

Edit: Looks like the link I quoted is dead, but here's the one I meant: https://www.mouser.com/ProjectManager/P ... dca4c4a741

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Post by gtrmstr53 » Tue Dec 03, 2019 12:14 am

I just put in my order, and had to modify the previous cart to replace out of stock components. If anyone can use it, feel free to visit it here:

https://www.mouser.com/ProjectManager/P ... 71896ba491

The following details are worth noting if you're going to use this:
The 4.7nF Styrene caps weren't in stock until January, so I replaced them with C0G caps.
I didn't order any male/female headers, or ferrite beads.
I added pots and knobs to my order.
I went with LM49720 opamps.

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by colossus » Thu Feb 06, 2020 6:47 pm

Where are the outputs located for the individual band outputs? Do you just hang a jack off of one end of the 1k resistor?

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Re:

Post by tttyylll » Wed Feb 26, 2020 12:57 pm

gtrmstr53 wrote:
Tue Dec 03, 2019 12:14 am
I just put in my order, and had to modify the previous cart to replace out of stock components. If anyone can use it, feel free to visit it here:

https://www.mouser.com/ProjectManager/P ... 71896ba491

The following details are worth noting if you're going to use this:
The 4.7nF Styrene caps weren't in stock until January, so I replaced them with C0G caps.
I didn't order any male/female headers, or ferrite beads.
I added pots and knobs to my order.
I went with LM49720 opamps.

how did those ops amps work out? considering ordering those myself

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by Rupert the not so great » Fri Apr 10, 2020 9:35 am

Hi,

Might be a big ask but was just wondering if someone could look over my RES EQ BOM. All of this being stuck inside is proving to be difficult so thought i'd use the time to do this and learn something. Bare in mind i've never ordered anything for myself before. Just looking for a heads up on anything i've maybe missed or anything that's the wrong value. If by any chance it's seeming correct then anyone looking to use it can feel free too :). Ignore the 4x2 female headers, they are for another project.

Here it is - https://www.mouser.co.uk/ProjectManager ... 4127674590

Things i'll be getting else where --

Switch SPDT
6 Thonkiconn Jacks
10 Potentionmeter 50k or 100k linear (B50K or B100K)
3 Potentionmeter 50k or 100k logarithmic (A50K or A100K)
2 10uF Electrolytic
11x IC SOCKETS
1 SIL header 6pol
4 SIL header 4pol
PCB AND PANEL
Euro Ribbon Cable.

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by guigui » Thu Jun 04, 2020 4:40 pm

Dows anyone here have the Dr. Wiener's version?

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by uniquepersonno2 » Wed Jul 22, 2020 1:26 am

Does anybody have a good place to get one of these in the US? Looking around and everyone seems to be out of stock...
It's done!
...probably! Ahhh, who am I kidding...

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by uniquepersonno2 » Wed Jul 29, 2020 5:22 pm

guigui wrote:
Thu Jun 04, 2020 4:40 pm
Dows anyone here have the Dr. Wiener's version?
Well, I bit the bullet and ordered the Tropical Military one from him. No idea when it'll get here as I'm in the US, but if you have any requests for things you want to hear it do I'd be happy to record some clips when it arrives.
I'm pumped. Just looking at pictures of the board makes me happy. Cost a bit since I have to import it... but worth it for sure. :party:
It's done!
...probably! Ahhh, who am I kidding...

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by Biom » Sat Aug 01, 2020 7:00 pm

Congrats with your purchase!
A demo of some percussion through it would be helpful, along with pure feedback stuff.

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by uniquepersonno2 » Sat Aug 01, 2020 7:04 pm

Biom wrote:
Sat Aug 01, 2020 7:00 pm
Congrats with your purchase!
A demo of some percussion through it would be helpful, along with pure feedback stuff.
Happy to oblige! Still waiting on it to ship, seems that anything international will be taking some time anyway... here's hoping it gets here fast. It's hard to be patient for something this cool! I'll post up some demos as soon as I get it patched.
It's done!
...probably! Ahhh, who am I kidding...

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by uniquepersonno2 » Wed Aug 05, 2020 3:28 pm

Edit: Just received the Dr. Wiener Tropical Military version, very fast shipping! And woooow, this thing is awesome. Thought there was an issue at first but think I just needed to let it warm up and settle in. It's AWESOME. As promised, here's some demos. Basic pings, Amen break processing (without resonance in the first part, and with resonance in the second part) and some straight self-oscillation. Sooo much fun. I'm gonna spend a lot of time with this thing. https://soundcloud.com/uniquepersonno2/ ... OuFNkssxSH
It's done!
...probably! Ahhh, who am I kidding...

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Biom
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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by Biom » Mon Aug 17, 2020 2:13 pm

Glad you're having fun with it! Definitely a keeper.
Though, doesn't sound different to a styro version at all for me. At least, I'd never be able to define them in a blind test, but does it make sense, if the module looks that cool inside?
Thank you for the comprehensive demo's!

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by nimmen » Mon Aug 17, 2020 3:18 pm

Biom wrote:
Mon Aug 17, 2020 2:13 pm
Glad you're having fun with it! Definitely a keeper.
Though, doesn't sound different to a styro version at all for me. At least, I'd never be able to define them in a blind test, but does it make sense, if the module looks that cool inside?
Thank you for the comprehensive demo's!
"Constructive criticism" :sstorm:
From my point of view, one that is probably "styro version" from patch point, sounds better than second one I bought randomly off modular grid. Well for "feedback mode" which I generally use, hard to compare without cv control
busy soldering...

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by Biom » Mon Aug 17, 2020 11:08 pm

You might be able to distinguish 2180C from 2180A then, perhaps.

My ears aren’t that good, nothing constructive at all. Besides, “constructive” isn’t the best word here, since A/B test is almost impossible (in feedback mode).

And my eyes are seeing some people blame Thonk kits and not necessarily because of the audio reasons. Thonk’s recommendations seem pretty reasonable though, especially in regards to Ken Stone modules.

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by nimmen » Tue Aug 18, 2020 12:59 pm

¯\_(ツ)_/¯
I must agree that thonk suggestions are generally reasonable, also A/B is almost impossible in this case.
I'm surprised, how little music making people spend on playback equipment, I'm not saying they should, but still find that unreasonable.
I tend to put higher quality components for DIY when ever I can, but I do use cheap chinese cables for modulation, but self made "high end" patch cables for AC :) This may be overkill obviously, but I think I could easily prove them superior on 2m+ lenghts...
My point, patch point has those versions probably not because components look nice. Also to be fair, this would need A/B and that's complicated.
busy soldering...

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by Biom » Wed Aug 19, 2020 9:56 am

nimmen wrote:
Tue Aug 18, 2020 12:59 pm
My point, patch point has those versions probably not because components look nice.
Marketing, perhaps. At least, that’s what the hi-fi world is totally based on.

As for the tests, our ears are the best judges.
Playback equipment is crucial, so is the room itself. Personally, good acoustics is where I’d spend the most money instead.

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by StrangeAttraction » Fri Sep 11, 2020 4:53 am

Hi, I'm really intetested in buying ResEq.
Just have a basic question - the way the frequency bands are configured (major 7th apparently), here's an appromiate translation of bands to notes:
Bb0 B1 Bb2 A3 Ab4 G5 Gb6 F7 ...
To me this seems to be heavily configured around B-G for the "key" frequencies, which is cool, but seems heavily focused on a 1/3 of an octave.
Is there a reason behind this configuration? Does anyone know?
cheers

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by makers » Fri Sep 11, 2020 6:34 am

"The RESONANT EQUALIZER (EQ) is a unique ten-band filter designed specifically for electronic sound synthesis and processing. Except for the top and bottom frequency bands, all other bands are spaced at an interval of a major seventh. This non-standard spacing avoids the very common effect of an accentuated resonance in one key, as will be the effect from graphic equalizers with octave or third-octave spacing between bands. Spacing by octaves will reinforce a regular overtone structure for one musical key, thereby producing regularly spaced formants accenting a particular tonality. The Resonant Equalizer's band spacing are much more interesting, producing formant peaks and valleys that are similar to those in acoustic instument sounds."
That's from electro-music.com

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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by B0bcat » Sat Sep 12, 2020 11:33 am

Couple questions -

1) has anybody tapped the individual outs, and is there any reason this should be complicated? I understand it’s “untested” and the question has come up multiple times over the last 12 pages of thread w/o any answer ever

2) what do the 4uF caps “do”? Schematic seems to suggest the comb outs run through them? And likewise, what’s the function of the 470nF cap in the RS version? The schematic doesn’t have it and apparently lacks the feedback section, so is it part of that?
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Re: [NEW] Serge Resonant EQ for Euro by R*S

Post by Tumulishroomaroom » Fri Sep 18, 2020 6:45 am

Feedbacking Res Eq processed in a number of ways :

instagram
soundcloud
dc11 - electron out on Cosmic Wave Records.

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