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Eden Forum Disappears

One way to avoid or at least reduction the risk of damaging drivers like that is to add a high pass filter to your signal path set around 35Hz. I don’t know if the DNA amps include a HPF, but @Rip Van Dan might know.

Another way is to reduce your expectations to match what the cabinet is really capable of.
 
One way to avoid or at least reduction the risk of damaging drivers like that is to add a high pass filter to your signal path set around 35Hz. I don’t know if the DNA amps include a HPF, but @Rip Van Dan might know.

Another way is to reduce your expectations to match what the cabinet is really capable of.

I believe there are several companies that make some sort of HPF pedal.

I actually learned about a product from watching a rig review of the late Dusty Hill (bass player for ZZ Top).

One company is called SFX High Performance Audio (sfxsound.com). I think they are in England. They make a nice small HPF that will work quite well with a 5 string since its cutoff frequency is 25 Hz. It has a pretty steep slope as well (36db/oct). I use it on my pedal board (last pedal in the chain before going to the amp front end) and it has eliminated cone wobble.
 
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One way to avoid or at least reduction the risk of damaging drivers like that is to add a high pass filter to your signal path set around 35Hz. I don’t know if the DNA amps include a HPF, but @Rip Van Dan might know.

Another way is to reduce your expectations to match what the cabinet is really capable of.
I'm presuming they do but didn't really get a yes or no answer. What I got when asking about that was that the bass rolls off quickly below 30Hz. I presume that's due to an HPF but can't say for sure as I got that from a tech and not David himself. David's DNA cabinets all have very low bottom ends. My DNS-410 goes to 37Hz, my DNS-210 goes down to 34Hz and the DNS-112 (not the micro but the standard) goes all the way down to 30Hz. I would presume if you need an HPF at a higher frequency, you'd need to buy an HPF pedal.

By Comparison, David's Eden XLT cabs typically went down to between 50Hz to 48Hz and his XST cabs went down to between 38Hz and 30Hz. The Eden XLT cabs would benefit the most from an HPF. The bass EQ on the Eden amps is a shelving EQ typically set at 30Hz. You could certainly cut 30Hz and everything below but cutting that EQ but it does nothing for any frequencies above it. My DNA-800 amp's bass EQ is set at 35Hz. I find that I leave the bass EQ flat with my Eden amps and give it a slight boost with my DNA-800 amp to basically get the same sound. As an FYI I also dial in a little boost on the low mids between 250Hz and 500Hz on both Eden and DNA amps.
 
Long time Eden forum member here -I think my handle was Lowman28. I think I joined in 05, or 06.
Rarely ever used TB because all my questions were always answered by Eden Forum members.
I’ve had so many Eden amps and cabs that I shouldn’t even try to list them all.
Sad to see it’s gone because I just scored a really nice WT405 (after a number of years of playing through other gear) Was hoping to find some old friends to chat with and found this thread instead.
Anyway.. Thanks for all the years of free knowledge and support.
Cheers all. Hope everyone is healthy and gigging.
 
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Long time Eden forum member here -I think my handle was Lowman28. I think I joined in 05, or 06.
Rarely ever used TB because all my questions were always answered by Eden Forum members.
I’ve had so many Eden amps and cabs that I shouldn’t even try to list them all.
Sad to see it’s gone because I just scored a really nice WT405 (after a number of years of playing through other gear) Was hoping to find some old friends to chat with and found this thread instead.
Anyway.. Thanks for all the years of free knowledge and support.
Cheers all. Hope everyone is healthy and gigging.
Hey Matrix! I'm here on Talkbass, and Armin is a member too. I try to answer most Eden questions but can usually call Armin in if we get in the weeds with specific component values, sizes, etc. or any electrical questions beyond my scope.

The shutdown of the Eden Forum was quite a shock to both Armin and I as we were the active moderators. We didn't get any warning or notice, it just stopped working one day. Armin got in touch with Joe at Marshall/Eden and he said they decided to close it "to save money". I never got a cent from them nor did Armin. Wonder what they were spending it on??

Anyhow, glad to hear you were able to score a WT405. That has the "non-hybrid" preamp in it but uses that Golden Ear chip to emulate the warmth of a tube, which it does quite well. It works a little different than the rest of David's WT series and I can send you a pdf copy of the manual for it if you need it. Just let me know and I can attach it to a Direct Message to you. By the way, as you can see, my handle is the same and Armin's is the same as it was on the Eden forum (Bassmann1968). And yes, Armin still has his Eden Pyramid of amps and cabs.

This is a good spot to ask questions about Eden gear. If you weren't already aware of it, David Nordschow (Eden's founder) left Eden in 2009 and started another company called DNA (David Nordschow Amplification). So he continues to improve upon and come up with new designs. I ended up with the amp he used to design Eden Cabs from 1999 until he left in 2009 (WT500/800) and also have one of his newer DNA-800 amps which puts out 800-watts rms into 4Ω or 2Ω and weighs all of 4.8-lbs.

Good to hear from you!
 
One way to avoid or at least reduction the risk of damaging drivers like that is to add a high pass filter to your signal path set around 35Hz. I don’t know if the DNA amps include a HPF, but @Rip Van Dan might know.

Another way is to reduce your expectations to match what the cabinet is really capable of.
They do have a HPF.
 
What he said :D
Hey Dan and Armin.
No need for assistance with the amp. Just wanted to say hey. I’m pretty well aware of what the 405 can do.
I guess I’m falling into the “downsizing” stage of playing these days.
I Was using an Genz Uber 410 and 212 powered by an Alembic F1X / Crown / Ashley Eq & Comp. rack for the last few years and it absolutely killed. I just don’t need all that power these days. Found the single owner 405 on Reverb last week and was like yep this is what I need.
After I bought it, I went looking for the Eden forum to share and chat but landed here instead.

You guys were always a great resource.
Armin helped me a few times with wiring diagrams and such. Glad you guys are still doing the thing. Can’t wait to jam my new/old 405.

Thanks again.
Keith.
 
Hey Dan and Armin.
No need for assistance with the amp. Just wanted to say hey. I’m pretty well aware of what the 405 can do.
I guess I’m falling into the “downsizing” stage of playing these days.
I Was using an Genz Uber 410 and 212 powered by an Alembic F1X / Crown / Ashley Eq & Comp. rack for the last few years and it absolutely killed. I just don’t need all that power these days. Found the single owner 405 on Reverb last week and was like yep this is what I need.
After I bought it, I went looking for the Eden forum to share and chat but landed here instead.

You guys were always a great resource.
Armin helped me a few times with wiring diagrams and such. Glad you guys are still doing the thing. Can’t wait to jam my new/old 405.

Thanks again.
Keith.
Glad to hear you found us on TalkBass! That WT405 is very versatile and a great sounding little amp. And as Armin said, "Welcome back to the Garden!"

Rock-On Kieth!!
Dan
 
Hallo Dan @Rip Van Dan and Armin @Bassmann1968, I was looking for the Eden amps Forum and I found this tread, I can not believe that it does not exist anymore, it is a shame, you have helped me a lot in the past, still I want to thank you for all the information given, thanks thanks thanks.
I wonder if you can help me this time as well, it is about my WT1205, I try to explain the issue: channel one is making a hiss very loud. This does not happen immediately when I turn on the amp but after 45 seconds more or less.
I have cleaned all jack inputs, also the FX send/return, but issue still there.
Channel two is workin fine.
Do you have any idea how to fix it? is it maybe time to change the tubes? The amp is from 2006 and still has the original Eden tubes, never changed.
Thanks in advance
Achille (KaossKarma)
 
Hallo Dan @Rip Van Dan and Armin @Bassmann1968, I was looking for the Eden amps Forum and I found this tread, I can not believe that it does not exist anymore, it is a shame, you have helped me a lot in the past, still I want to thank you for all the information given, thanks thanks thanks.
I wonder if you can help me this time as well, it is about my WT1205, I try to explain the issue: channel one is making a hiss very loud. This does not happen immediately when I turn on the amp but after 45 seconds more or less.
I have cleaned all jack inputs, also the FX send/return, but issue still there.
Channel two is workin fine.
Do you have any idea how to fix it? is it maybe time to change the tubes? The amp is from 2006 and still has the original Eden tubes, never changed.
Thanks in advance
Achille (KaossKarma)
Hi Achille and welcome to the Garden on TB!
My first answer you already took care of and that would be to give it a good cleaning. I'd be surprised if the tube went bad because it's not under much stress and usually when they go bad they go microphonic. Sometimes you can hear yourself when you are close to your amp and that's a good indication. More typically it will make a noise like a very low frequency feedback or almost a hum. You can always pull it out and put a new one in to see if that's the problem, but I'm guessing, that's not it. Still, if you don't mind unscrewing all those little screws to open the chassis, you could always try that.

Probably best to wait for Armin to answer here. He's the electronics whiz and might have some other options for you to try out. Since you've already cleaned all the 1/4" jacks including all the ones on the back of the amp, I'm afraid it will probably be tech time. But I'd wait for Armin's response (@Bassmann1968) before I resorted to that.
 
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Hallo Dan @Rip Van Dan and Armin @Bassmann1968, I was looking for the Eden amps Forum and I found this tread, I can not believe that it does not exist anymore, it is a shame, you have helped me a lot in the past, still I want to thank you for all the information given, thanks thanks thanks.
I wonder if you can help me this time as well, it is about my WT1205, I try to explain the issue: channel one is making a hiss very loud. This does not happen immediately when I turn on the amp but after 45 seconds more or less.
I have cleaned all jack inputs, also the FX send/return, but issue still there.
Channel two is workin fine.
Do you have any idea how to fix it? is it maybe time to change the tubes? The amp is from 2006 and still has the original Eden tubes, never changed.
Thanks in advance
Achille (KaossKarma)

Hello,

I'm not an Eden\DNA owner yet, but I took a look at the description of the WT-1205. What you're experiencing does sound like a tube failure-- especially since it takes a minute or so for the triodes to "heat up" before it is fully operational.

According to the description I read on Amazon, the WT-1205 has (2) 7025 preamp tubes. While I don't know for sure, the description sounded like each tube was driving a separate channel. If that's the case, then a tube failure would certainly explain why the issues you describe are only affecting one channel.

Either way, it wouldn't hurt to buy about a half-dozen or so tubes (quality can be hit-or-miss) so that you have some on hand for when they do eventually fail in the future, assuming you aren't experiencing that already. Now would be a good time to buy them, as they're getting harder to find.
 
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Hello,

I'm not an Eden\DNA owner yet, but I took a look at the description of the WT-1205. What you're experiencing does sound like a tube failure-- especially since it takes a minute or so for the triodes to "heat up" before it is fully operational.

According to the description I read on Amazon, the WT-1205 has (2) 7025 preamp tubes. While I don't know for sure, the description sounded like each tube was driving a separate channel. If that's the case, then a tube failure would certainly explain why the issues you describe are only affecting one channel.

Either way, it wouldn't hurt to buy about a half-dozen or so tubes (quality can be hit-or-miss) so that you have some on hand for when they do eventually fail in the future, assuming you aren't experiencing that already. Now would be a good time to buy them, as they're getting harder to find.
Actually the tubes in the WT series of David's amps are in the impedance matching section operating within specific parameters to produce the warmth that the Eden WT amps are known for. And the tubes are 12ax7 tubes, not the 7025. The 12ax7 and the 7025 are basically the same tubes although the 7025 used to be the low-noise version of the 12ax7. That would still be the case for some very old tubes but for modern tubes the 12ax7 tubes are just as quiet as the 7025's. For at least the last 20 years, all the Eden WT amps were shipped with Ruby 12ax7 tubes in them. Rolling tubes in them has virtually no effect in the Eden WT amps because again, those 12ax7 tubes are not in the gain section. The newer WTP Eden class A/B amps do have a second tube in the gain section but not the WT amps.

Nonetheless, nothing wrong with checking out the tubes to make sure they are good, but I would NOT go out and buy half a dozen of them. I personally have one spare tube, which was the tube that was in it when I bought it in 2010. I swapped it out with a new one and the one I pulled out of my WT500/800 was the Ruby 12ax7 tube it came with in 1999. It made no difference and I didn't want to undo all those small screws to put it back in again. So I just keep it as a spare.
 
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Actually the tubes in the WT series of David's amps are in the impedance matching section operating within specific parameters to produce the warmth that the Eden WT amps are known for. And the tubes are 12ax7 tubes, not the 7025. The 12ax7 and the 7025 are basically the same tubes although the 7025 used to be the low-noise version of the 12ax7. That would still be the case for some very old tubes but for modern tubes the 12ax7 tubes are just as quiet as the 7025's. For at least the last 20 years, all the Eden WT amps were shipped with Ruby 12ax7 tubes in them. Rolling tubes in the has virtually no effect in the Eden WT amps because again, those 12ax7 tubes are not in the gain section. The newer WTP Eden class A/B amps do have a second tube in the gain section but not the WT amps.

Nonetheless, nothing wrong with checking out the tubes to make sure they are good, but I would NOT go out and buy half a dozen of them. I personally have one spare tube, which was the tube that was in it when I bought it in 2010. I swapped it out with a new one and the one I pulled out of my WT500/800 was the Ruby 12ax7 tube it came with in 1999. It made no difference and I didn't want to undo all those small screws to put it back in again. So I just keep it as a spare.

That was informative, Rip! Thanks for the clarifications!
 
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