- Feb 12, 2006
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- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
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Ampeg Isovent - Jack Plate Circuit Board.
- Thread starter Nicholas Orick
- Start date
- Status
From just now listening to your YT clip, which is if it is you playing through the amp, my impression is that you are closer to the start of your bass career than towards the pinnacle, and suggests to me that your time would be better spent playing more than hours of posting repetitive pics of obsolete amp designs on some internet forum. Gear only gets one so far. Operative word here is 'impression', which is non-negotiable.
It also essentially rendered for me this entire thread as a pointless waste of whatever time I spent on it. Unwatched.
It also essentially rendered for me this entire thread as a pointless waste of whatever time I spent on it. Unwatched.
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And as a species, through sheer stupidity that we do things that shouldn't be done :Ol
Chef
In Memoriam
From the mod staff: get back on topic. Thanks.
That clip wasn't me playing. That was somebody else who posted that clip, and I was only commenting how there is very little out there on the Isovent. I am already much better a bass player than the person in that video.
My only point is, when I go to YouTube, that is literally the Only Video on the Isovent, and maybe perhaps down the road I will add a few more.
Moreover, in having made a few postins on Talkbass previously, given my issue with this Isovent, I began this thread regarding my difficulty with the Isovent, and a few of you have been of genuine assistance concerning the Isovent, the rest of you seem to be a gang on here who follow one or two gurus, and are poking a bit of fun at me, and so rhis thread kind of took a strange directions as we went along. You guys had as much to do with that as I did.
In terms of practicing bass, I play just about every day, I now read music in both Bass and Treble Clef, and even though I am a late starter, I have always wanted to play bass, and now is my time. I am nowehere near as good as Pastorius or Trujillo, or many others, but I have Determined myself to doing rhis, and doing this I will. In having done Other Endeavors in life, and to one degree or another achieved a certain level of competency and proficiency, I am sure my playing bass will begin to reach some level.where I feel I am beginning to get somewhere with it, but I asaure you, I am nowhere yet where I want to be with it, NOT even close, but as I continue working towards where I want to take it, I also decided to have some fun with a little bit of gear, and I only asked you guys for some help in figuring out what is going on with this Isovent.
This isn't a Do or Die situation, the World isn't going to crack in two, the sky isn't going to fall, and this is sure as Hell NOT Mortal Combat.
I am just a guy asking you all for some.assistence in trying to figure out how to solve this problem with this dag gone Isovent.
We haven't got to take this all out into Left Field and Outta the Ball Park.
This is just an Isovent.
That's all it is.
An Ampeg Isovent.
And a couple of you did give me.worthwhile advise which led me to conclude I should Remove the Crossover and have it ReWired.
From there we will see what we get and after figure out what to do next.
This is just a Fun Project and NOT the End of the World.
In the meantime, after napping on a rare weekend for me, I am about to do some.practicing on bass.
I have been working a fair amount of overtime at my job and I am enjoying a little R&R here at home on the rare.occasions we have a full weekend off.
So relax.
It is just an Ampeg Isovent.
Somehow this Isovent seems to have driven all of you clear out of your minds.
.
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I will next week.
The Isovent is in my friend's music shop.
The old wiring harness has been removed and new wiring it going in.
Once my friend has fully rewired it I will explain to you all what we have done and why we are doing it.
We are making a change to the wiring of the Isovent by ReWiring it in a somewhat different way.
As I recall this was 100% your idea and literally every single scrap of advice you’ve been given was to not bother. In fact this course of action was stated in your original post and we’ve all been trying to convince you that you’re wasting your effort this entire time. The crossover only splits the highs out for the tweeter. The rest of the signal goes to the 10s and 15s. By removing the tweeter you’ve removed the crossover from the circuit, so you can physically remove the board but it shouldn’t have anything to do with the resonance problem you’ve described.
You convinced yourself this was the way forward and despite the advice you were given you did it anyway. Which is fine. Go ahead and eliminate the “variable” if it helps you sort it out. But nobody here suggested that would be a worthwhile endeavour.
I’m still waiting for details on your planned modifications. From the pictures you’ve shared (no this is NOT an invitation to repost them all again verbatim), it looks like you’re thinking about messing with the arrangement of the 15s.
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At my gig last night, I had a "G" bomb going on but alas, it was only the double 18 PAS subs that caused it
This is true. But you have to understand how frustrating it is to watch a thread like this, where a problem is identified, advice is offered, and said advice is then completely ignored. Something about leading a horse to water, only in this case we have a horse who walked in complaining about being thirsty.
We could all use more of both of those things.
The cabinet has absolutely nothing to do with it.
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Remember, he's going to tell us, but not until his top secret project is complete.
Said advice was, actually, rejected, IIRC.
...but, a pencil must be lead.
Edit: missing word (damn keyboard
)
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Okay my friend is experienced at working on cabs. Hen also agreed on removing the Crossover Terminal Block. The trouble is, between now and when I see him sometime next week, I have no idea what he is going to do with the Isovent. I have seen him work on cabinets bringing them into good operational capability. For example he recently worked on an old Ampeg B18, and while also working on my Isovent, he is also rebuilding some kind of Mesa Tube Amp. He loves Tubes.
Since we got on the topic of computerized speakers, I am toying with the idea of possibky converting the Isovent into a computer controlled self powered speaker. Anyway its an idea. People when building race cars do this all the time, and given the technology is developing for speakers, I am pondering if there is anything out there I could use to convert the Isovent.
What will this proposed computer system be doing, exactly? What are you trying to convert the cab into? What is the end goal? what do modern race cars have to do with obsolete bass guitar cabs?
Its already been suggested to start with a simple parametric EQ to dial out the offending frequencies.
Yes I am fully aware of the Parametric EQ Option, which may become necessary, and probably the least expensive of options, but since this speaker has decided to become a pain in the ass, and since a whole lot ia going Digital Speaker whatever you call it, DSP something or other, when considering making something fly that doesnt want to fly, maybe the thing to do is rhook up a DSP system to the speaker, and in a similar way to how auto systems get programmed, program a controller to run the Isovent in a way that maybe we wouldn't expect.
You have got to realize this stuff is all new to me, and in between taking in the news of Kobe Bryant being killed in a helicopter crash, and reading up so I can begin to gain some kind of understanding about what DSP is, I am thinking it just might be a Rational Possibility to go DSP with the Isovent.
Until now I actually had little interesr in DSP anything, but again, since the Isovent has decided to be a pain in the ass, beyond the Parametric EQ Option, the DSP thing is beginning to look like a potentially attractive option.
I have a Self Powered Speaker, a simpler D Class speaker, and from time to time I do enjoy just taking a Preamp/DI, plugging into the SP Speaker, and playing that way.
Just for fun.
Doing this also gives me a sense if what my various Preamp/DIs will sound like when going through a more eleborate ans complex sound system, so there is also a more practical purpose to playing through the self powered speaker.
Anyway the DSP thing has sparked my interest and I am just beginning to gain an understanding of what it is and how it works.
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Remember, he's going to tell us, but not until his top secret project is complete.
Said advice was, actually, rejected, IIRC.
...but, a pencil must be lead.
Edit: missing word (damn keyboard
LOL.
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