building an amp vault vs. modeling program

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iamlark
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building an amp vault vs. modeling program

Post by iamlark » Fri May 11, 2007 9:31 am

My good friend came to me last night and expressed his desires to build a soundproof vault for recording guitars in his apartment. Doing a quick search, I'm not immediately finding any directions on how to build one, and am wondering if anyone here has had success building one, and if so would you share your plans for it?

He asked another question though, wondering if it would even be worth it to build the vault or rather buy a high-end amp modeling program. I'm thinking he should go with the vault, but I would like your opinion on this as well.

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Post by bradfromtampa » Fri May 11, 2007 10:24 am

i haven't tried this at all, but it looked interesting...

it could be a solution.

http://www.amptone.com/diyisobox.htm

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Post by versuviusx » Fri May 11, 2007 10:54 am

amplitube 2 all the way!

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Post by crow » Fri May 11, 2007 11:11 am

Though I am way more into recording "real" things whenever possible (which is fortunately almost all of the time) in lieu of modeled or sampled sources, there are a several cons to the iso box idea:

1) it takes a lot of mass to make something soundproof, so it'll have to be pretty big. if your friend's in an apartment, it'll take up some valuable floorspace.

2) putting the amp in a little box eliminates a lot of what is rewarding about recording a real amp; namely, the ability to pull the mic back or add room mics. and the fun of standing in front of a cranked amp.

3) putting an amp in a small sealed airspace might mess with the sound of the cabinet. i've never tried it though, so i might just be superstitious here.

my advice would be that if your friend's style of music calls for a "slick" recording style (i don't know, modern rock, pop-punk, nu-metal, i'm being subjective here) then he'd save himself a lot of hassle by using a modeling program. a little investigation could even reveal that some of his heroes record with modeled sounds. he could also record direct with a modeled sound for starters, and take his files to a different space to re-amp a clean di version of his performances through a "proper" setup. convoluted, yes, but possible.

if he does build the box, i would advise putting only the speaker cabinet in the box. that would keep heat down inside the box and circumvent the hassle of having to open the whole setup any time he wants to adjust the sound. i often record guitarists with the head in the control room, with a long speaker cable running out to the cab in the other room. it's oh so convenient, and if the amp is a combo, i'll sometimes disconnect it from its speaker and use it as a head.

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lapsteel
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Post by lapsteel » Fri May 11, 2007 12:22 pm

crow makes good points, especially with how much space it might take up

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Post by GooberNumber9 » Fri May 11, 2007 12:38 pm

Having built one of these in the past, as well as tried several other ways to get good guitar tones in a quiet environment, I have finally settle down to this order of preference for dealing with this issue:

1) A normal tube amp, quality speaker simulator with speaker in and through jacks (the DMC Cab-Tone is my favorite), and a passive load box (like the THD HotPlate).

2) A good modelling amplifier/effects unit. I like the Vox Tonelab SE a lot, and the Fender Cyber-Twin is a nice unit. I haven't really liked the Line6 Pod or amps as much, but some people get good sounds out of them. Don't even think the "B" word. There are also lots of analog devices out there that can do the same thing in one box, like the THD Univalve and Bivalve amps, and the Tech 21 solid-state preamps.

3) A quality DI (Countryman, Radial J48 or JDI) and modelling software. I haven't done a lot of this, but I've gotten great results with software as simple as the Bomb Factory SansAmp PSA-1 plug-in.

4) An iso box.

Really an iso box is not on my list at all. It's too big, too much of a pain, and sounds too terrible to be worth it. Take the money that you would spend on building one of these and get a plug-in or a modelling device instead. You'll save yourself a lot of time, trouble, sweat, and sawdust, and you'll get a whole bunch of effects.

Todd Wilcox

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Post by RustyBrooks » Fri May 11, 2007 2:56 pm

I built 2 isolation cabinets. One many many years ago in an apartment, and one fairly recently.

The old one was too small. I used a 10" speaker with it, and it was basically a rectangle about 15"x15"x40". I lined the inside with the kind of foam used for sound treatment in a studio (this was the most expensive part but not too bad). So I had that outter-box lined with foam and then an inner box which was basically just a small open-backed cabinet that was just wide enough to be held well in place by the foam (I'd jam it in there). I used a tiny little mic stand to position the mic, and so I'd have one mic cord coming out, and the input from my amp coming it. I put the whole thing in a closet about 25' from my recording space. It was by no means silent but it cut the sound down considerably. It sounded OK.

A more recent one is much larger. I could easily fit a combo in it but I still just put a little cab in it (cab for a single 12" speaker). It's big, it's heavy, it's also lined with foam. With my small cabinet in there I have about 2' between the front of the cab and the back wall. I can easily fit 2 mics in there. I use regular mic stands (well, they are "low profile" mic stands designed for use with a low amp) but I chopped the tubing down so that they fit in there (the mic boom does not extend as far as it did before chopping). It's larger and heavier so it's quieter and it sounds better. I think it sounds better than a modelled amp (I really only have experience with Guitar Rig, which actually can sound good if you spend enough time trying).

I almost alway, by the way, record a direct signal through a DI, and the miced signal, and I will often run the DI signal through guitar rig and blend the two together. I actually have two DIs, though I rarely use both. One can actually go between the amp and the speaker, so I get post-power-amp sound. If I really felt like working hard I could probably use both DI and mic the amp.

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Post by ashcat_lt » Fri May 11, 2007 8:11 pm

Modeler.

For all of the above reasons plus it's portable.

I personally would go for a standalone unit. That way, once you get used to it and come to depend on its sounds you can take it to gigs with (maybe) a powered speaker.

I prefer the V-Amp. Behringer gets some bad talk from what I've seen, but I did tests with an early Pod, the Vox thing, and a Korg and chose the V-amp for its variety (at that time it had the most individual amps and cabs) and its sound quality. The fact it was the cheapest was gravy.

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Post by inverseroom » Sat May 12, 2007 5:36 am

Before you or your friend spend any money on anything, download this:

http://www.kvraudio.com/get/2426.html

Free Amp 2 is a freeware amp modeler that is really very good. Great GUI too. Development on it is very robust, and there will definitely be a 3. It's PC only, though, that might be a deal breaker.

My favorite hardware modeler is the Vox Tonelab.

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Post by rhythm ranch » Sat May 12, 2007 9:45 am


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Post by rolandk » Sat May 12, 2007 10:06 am

In this situation I'd go with a modeler. I've tried the diy iso box (amp in a closet with a bunch of blankets) in the past and it was a royal PITA to set up and didn't sound that great. One huge advantage of the modeler IMO is the convenience factor of plugging in and hitting record while your inspiration is at its peak vs. spending an hour setting stuff up and getting it dialed in.
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Post by Jeff White » Sat May 12, 2007 10:42 am

My trick, as it fits my gear and life-style: Radial X-Amp

I use Guitar Rig II to monitor and record my guitar tracks through a nice DI (Presonus MP20 modded with Burr-Brown op-amps). I print the direct signal to disk ALWAYS so that I can ReAmp later. I also print the GR2 track that I monitor off of, as a reference for the song.

Using the X-Amp, my Powerbook, my amps (Mesa-boggie DC-3 and Fender Pro JR), my mic preamps, and my mics, I plan a day to ReAmp where I can make noise. Either a Sunday at the office where I work, a friend's house, etc. The point is, my lack of space never gets in the way of my creativity. I simply make music now and ReAmp later. Sometimes I blend the amp and GR2.

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Post by iamlark » Wed May 16, 2007 1:21 pm

thanks for all the feedback:
so far seems like Amplitube 2 or Vox soundlab sound like good alternative options -

would buying a nice DI be needed in both cases also?

versuviusx
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Post by versuviusx » Wed May 16, 2007 1:44 pm

what is the vox soundlab?
also you may want to check out alien connections MKII

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Post by DefD » Wed May 16, 2007 2:30 pm

i have used and hated iso boxes.
so I'd choose the modeler route if that's the only other choice.

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