Ampeg Isovent - Jack Plate Circuit Board.

[jthisdell]

Why would you think Celestion was the OEM? They didn't even make a bass speaker back in that era.

Why would you use a Neo driver in that otherwise heavy cabinet?

Why would you put significant more dollars in this cabinet?

 

[Jim Carr]

I had this one:
View attachment 3683007

I built two 1x15 cabs like you with Radio Shack 15s and ran them with this, a Marantz 8B
View attachment 3683008

And a Heathkit SP2 preamp:
View attachment 3683009

That is how it was done in my neck of the woods in the early '60s.

 

[jthisdell]

The good 'ol days weren't all that great in reality. Time passed seems to make the heart grow fonder and the memory foggier.

My memory of the 70's was that all the bass cabs and amps I owned were woefully inferior to even the cheapest amps that the guitarists owned. All woefully under powered and cabs were just speakers stuck in boxes. No one thought that maybe they should match up in some way. A 15 was a 15. It wasn't until I got a Peavey MarkIV and 2-15 cab in the early 80's that I was happy. Of course that came with significant size and weight but compared to everything else I had played through it was loud and tone was not bad and the price was reasonable (I could never have afforded an Acoustic or SVT). The better offerings now are so much superior it makes a thread like this all the more ridiculous.

 

[Nicholas Orick]

Really?! There were multiple suggestions of using EQ back on page 1. EQ is separate and exterior to the internal crossover. EQ is for treating the entire signal before entering the speaker, and offending frequencies can be identified and filtered before reproduction.

The crossover is specific to discriminating the frequencies it receives and directing them to the appropriate speaker. This is fundamental to any signal path. In your case EQ is required to filter out the offending frequency and that isn't the job of the crossover.

Source -> signal boost (preamplification) -> tone shaping (equalization) -> amplification -> speaker discrimination (crossover) -> speaker

Understand and address each link in this signal chain. Otherwise it's like working on your transmission when your carburetor is clogged.

Yes you guys have made thus abundantly clear.

No sooner does one guy recommend a certain Parametric EQ then one of the gurus says it won't do much.

Sounds to me like @agedhorse. Isn't really being as helpful in making recommendations as he is in trying dissuade me from continuing with the Isovent.

Once my friend finsihes ReWiring it then wr will see what to do next.

 

[farace]

No sooner does one guy recommend a certain Parametric EQ then one of the gurus says it won't do much.

If I remember correctly, the suggestion was that the parametric eq belongs before the amp, and not between the amp and the speaker. I believe you were talking about installing the parametric inside the cabinet. It's the wrong place for it.

 

[agedhorse]

Yes you guys have made thus abundantly clear.

No sooner does one guy recommend a certain Parametric EQ then one of the gurus says it won't do much.

Sounds to me like @agedhorse. Isn't really being as helpful in making recommendations as he is in trying dissuade me from continuing with the Isovent.

Once my friend finsihes ReWiring it then wr will see what to do next.

I am being helpful, you are being stubborn (NOT determined).

It's like driving off a cliff, providing directions to the cliff is not helpful even though you are CONVINCED that's going to solve your problem.

 

[S-Bigbottom]

Maybe the next time I will go to something far "More Modern".

I gave you a great one since you are loving the line arrays on post #319.
Ampeg Isovent - Jack Plate Circuit Board.
I will repost it here.

Click> Bass Cabinets Archives - Genzler Amplification
These ARE MADE for BASS. Available in a single 10, 12, 15, two 10's or four 10's all with the Linearray taking care of the mids and highs while the woofer booms the bass. These will keep your sound on axis almost anywhere.
Use a single box or stack them. Makes a neat arc when stacked.

Also the Mesa Subway cabs.
To see their full line Click>MESA/Boogie®

Or go into any music shop and anything that is more than a single 12 will out preform that isovent cab, and weigh a lot less than it also.

 

[Jeff Scott]

Sounds to me like @agedhorse. Isn't really being as helpful in making recommendations as he is in trying dissuade me from continuing with the Isovent.

Andy is trying to knock blow some common sense into you in your direction, to prevent you from wasting more time, and money on this project. Sometimes, you just "gots ta no wren t'qkit" and move on to more fruitful endeavors.

Having fun trying to re-animate a dead old horse (sorry, Andy ) is cool but dissing good advice is simply foolish.

 

[redstrand]

Yes you guys have made thus abundantly clear.

No sooner does one guy recommend a certain Parametric EQ then one of the gurus says it won't do much.

Sounds to me like @agedhorse. Isn't really being as helpful in making recommendations as he is in trying dissuade me from continuing with the Isovent.

Once my friend finsihes ReWiring it then wr will see what to do next.

What’s clear is you’ve been not listening. Buy something else and move on. Andy knows what he’s taking about and then some, you don’t. You on the other hand have a cab that isn’t worth all this hassle. Masterful troll job I will give you that.

 

[daveman50]

This thread is still going?!

You can't fix stupid.

 

[mexicanyella]

I’ll say this for Nick the OP...he’s posted a question, hasn’t seemed too swayed by the multiple answers he’s gotten, he’s got a 33-page thread that has stalled, apparently while waiting for some simple rewiring to happen...he’ s even issued some defiant chiding and stubborn refusal to acknowledge the information this thread has been chock full of, despite its length.

It can be frustrating to be asked for help, offer it, and have some or all of it disregarded.

I can relate to some of where Nick the OP seems to be coming from, in the same way that I could see where a guy might think it would be fun to swap an Olds 455 into an old step van: “I wanted to do it, thought it might be fun, and I’m the one who has to drive it, not you.”

But one thing Nick the OP has not done was insult anybody. I have no real investment in this other than a few suggestions and comments, but I have cringed at some of the angry responses and finally felt moved to say that at the word “stupid.” I think anyone getting that annoyed with the way this thread is going ought to move on, read something else and not resort to insults.

This reproachful message brought to you by the “I might be a cupcake in real life but I would say that to your face” department.

 

[Nicholas Orick]

I gave you a great one since you are loving the line arrays on post #319.
Ampeg Isovent - Jack Plate Circuit Board.
I will repost it here.

Click> Bass Cabinets Archives - Genzler Amplification
These ARE MADE for BASS. Available in a single 10, 12, 15, two 10's or four 10's all with the Linearray taking care of the mids and highs while the woofer booms the bass. These will keep your sound on axis almost anywhere.
Use a single box or stack them. Makes a neat arc when stacked.

Also the Mesa Subway cabs.
To see their full line Click>MESA/Boogie®

Or go into any music shop and anything that is more than a single 12 will out preform that isovent cab, and weigh a lot less than it also.

The Genzler cabs look really good. I bi-amp during practice and like the Genzler concept.

 

[daveman50]

Mexicanyella, hey. I'm the one who used the word stupid. That phrase "You can't fix stupid" is definitely pejorative. Negative. I do stand by it because (assuming he's not just a troll) the OP's ideas, rambling, overuse of capitals, odd photos, etc., to be ... well, like I said ... but to be fair, my momma said if you can't say anything nice don't say anything at all; so I'm out; y'all have fun! Peace!

 

[Nicholas Orick]

I’ll say this for Nick the OP...he’s posted a question, hasn’t seemed too swayed by the multiple answers he’s gotten, he’s got a 33-page thread that has stalled, apparently while waiting for some simple rewiring to happen...he’ s even issued some defiant chiding and stubborn refusal to acknowledge the information this thread has been chock full of, despite its length.

It can be frustrating to be asked for help, offer it, and have some or all of it disregarded.

I can relate to some of where Nick the OP seems to be coming from, in the same way that I could see where a guy might think it would be fun to swap an Olds 455 into an old step van: “I wanted to do it, thought it might be fun, and I’m the one who has to drive it, not you.”

But one thing Nick the OP has not done was insult anybody. I have no real investment in this other than a few suggestions and comments, but I have cringed at some of the angry responses and finally felt moved to say that at the word “stupid.” I think anyone getting that annoyed with the way this thread is going ought to move on, read something else and not resort to insults.

This reproachful message brought to you by the “I might be a cupcake in real life but I would say that to your face” department.

Thank You.

I didn't like the "Stupid" comment but decided NOT to get sucked into a cat pissing contest. Instead I moved on to your comment which I enjoyed reading and found genuinely funny.

Exactly. Switching the engine from one vehicle to another, I am having fun doing it, andnI am the one who has to drive it.

Exactly.

This doesnt mean that I am NOT curious about a Bose system, or Genzler, or Mesa, and or or or, but this is the project I am into at the monent, I am having trying to make the impossible work properly, it is a learning experience, and as you say, I am the one who has to drive it.

I really did laugh out loud when I read your comment.

Plus I really do think there is Value in this project. It is one thing to make a well made cabinet work but something entirely else to make a cabinet that won't work - work properly, and from my perspective this experience will be a worthwhile learning experience for a small expenditure of money.

We never know, this could lead to something later on, and while others are rolling their eyes, I am having fun with it, and gaining something out of it I didnt have before. From this point of view it will be worthwhile.

Plus I have been introduced to all of you.

Another plus along the way.

 

[S-Bigbottom]

The Genzler cabs look really good. I bi-amp during practice and like the Genzler concept.

No need to bi-amp, it is crossed over perfectly for you.

The woofer produces the lows up to 800hz then the LineArray takes all the above. This gives your mids and highs great side to side dispersion. The 6 degree angle on the baffle of each cab helps get the sound to your ears better.

Ten feet on the left or right sounds the same as standing in front of it, unlike cabs with side by side woofers or this isovent thing.

 

[Nicholas Orick]

The Mesa Subway 215 looks good.

So does the Genzler system.

The Crown Drivecore Amplifiers look good also.

The advantage to the Drivecore is, you can just about any speaker, and via changing and setting parameters inside the Drivecore system, the performance values of any given speaker can be controlled and changed. The Drivecore amplifier is NOT Specific to any particular speaker and therefore becomes a versatile tool towards setting the performance values for a given speaker.

And so to does the Rolls RPQ.

.

 

[S-Bigbottom]

The Mesa Subway 215 looks good.

So does the Genzler system.

The Crown Drivecore Amplifiers look good also.

And so to does the Rolls RPQ.

No need for a complicated eq and seperate power amp set up.
They also do fantastic 6-ish lbs 800 watt amps, that fit in a small bag that you carry on your back.
Click the link above the pictures for more information.


Mesa Boogie Subway D 800 Plus Bass Amplifier | MESA/Boogie®

Mesa Boogie Subway WD-800 WalkAbout Bass Amplifier | MESA/Boogie®

Magellan 800 - Genzler Amplification

See how small they are on this single 12 cab?
They do not sound small at all.

 

[Nicholas Orick]

No need for a complicated eq and seperate power amp set up.
They also do fantastic 6-ish lbs 800 watt amps, that fit in a small bag that you carry on your back.
Click the link above the pictures for more information.


Mesa Boogie Subway D 800 Plus Bass Amplifier | MESA/Boogie®
View attachment 3685491


Mesa Boogie Subway WD-800 WalkAbout Bass Amplifier | MESA/Boogie®
View attachment 3685492

Magellan 800 - Genzler Amplification
View attachment 3685493


See how small they are on this single 12 cab?
They do not sound small at all.
View attachment 3685494

I like, I like, I like.

The Genzler is the one I am really looking at.

Cool layout.

.

 

[DJ Bebop]

No need for a complicated eq and seperate power amp set up.
They also do fantastic 6-ish lbs 800 watt amps, that fit in a small bag that you carry on your back.
Click the link above the pictures for more information.


Mesa Boogie Subway D 800 Plus Bass Amplifier | MESA/Boogie®
View attachment 3685491


Mesa Boogie Subway WD-800 WalkAbout Bass Amplifier | MESA/Boogie®
View attachment 3685492

Magellan 800 - Genzler Amplification
View attachment 3685493

See how small they are on this single 12 cab?
They do not sound small at all.
View attachment 3685494

The WD 800! That's my jam!

 

[Nicholas Orick]

Okay you guys, they have the wiring in and it is working. The Top Secret item is called a Switching Jack. My friend and I discussed two possibilities for using Switching Jacks, one way we know will work, and the other we weren't sure of yet, so until he gives the final say, I won't go on any further about the Switching Jacks. If the second way turns out to be possible then I wanted it to be a surprise - for all you (believe it or NOT), but you all had to push it, so I kind of let the cat half out of the bag.

You don't get the Whole Cat Out of the Bag until later on.

More surprises to come, but with the way you guys sometimes act, I am NOT telling when.

In the meantime - you suffer.

After mentioning the Dyna Comp, one of you said I should get a Real Compressor for Bass, so I decided to clear something up.

The Dyna Comp acts like a Leveling Amplifier, which in a sense is a sort of simpler abreviated form of a full fledged compressor, and the reason I use the Dyna Comp is so I can take the rattling out of the rafters thereby making practice a little bit quieter.

And to add to my point, while we continue to wait for the results of ReWiring the Isovent, I decided to give you guys a Rig Rundown for my Practice Rig.

I have a very strong six string fretless bass on which I like to use Heavy Gauge Ken Smith Bass Strings. I have been using Ken Smith Bass Strings for well over a decade and really like them. I like my G and C strings to feel like Bass Strings and NOT Guitar Strings.

Next is usually by Boss TU3 Tuner.

After that I tend to use my MXR Bass DI+ Preamp/DI, then Dyna Comp, and from there into two Live Wire Passive DI boxes.

I do have an XLR Splitter for sending the MXR directly into the Mixer, but this would bypass the Dyna Comp, so I use the two Passive DIs AFTER the Dyna Comp.

Get It?!

I have various other Preamp/DIs but I like the Live Wire, and since my wife bought me one of them, I use the Live Wires more for Sentimental Reasons having Nothing to do with Die Hard Gnarly Performances.

From there I Bi-Amp, or to say Two Channel, my way into a Used Mackie 802 VLZ3 mixer.

The Mixer then feeds to a stacked Kustom 210 Self Powered (which my wife bought me), and Kustom 112 Self Powered Sub.

All relatively inexpensive, albeit I have put a little money into it, and overall, I am enjoying this somewhat over blown Practice Rig.

To the Mixer I have also connected a Boss DB60 Metronome (which I use extensively) and a Numark NDX 500 Multimedia Player for Ear Training and learning against already recorded music.

This is my Basic Practice Rig.

Do I need to go crazy running around getting a Real Compressor for Bass?

I have turned down Compressors and actually getting me to use a Compressor at all is a Big Thing.

I like my Dyna Comp.

My Dyna Comp greatly reduces the Rattling of the Rafters.

Maybe next year or the year after I will get a Real Compressor for bass.

I forgot, I am using both Audio Technica M50x and Pioneer something or other Headphones.

.