DIY Cab Simulator suggestions - Direct out setup questions

[Ettore_M]

Hey guys! Long time no see. I don't have much time lately 'cause life and work got in the way..

I searched the forum for cab sim suggestions, but I had a couple questions so I thought I should write a new thread.

I wanna build a cab sim/ DI combo and I found a lot of DIY designs. But the question is if I build a cab sim, like ROG's Condor, would I need a DI, like for example a H&K Red Box, after it for feeding the signal to the main console (PA system) for a live situation?
I'm just searching a amp-less solution for live performances. Have anyone built and used a setup like this?

Hector

[Thomas_H]

Hi Ettore,

you didnt say if its for acoustic or electric guitar.
For acoustic you wont need a cabsim in front, maybe an EQ.
For electric its both.

Built something for live? Yes : http://www.madbeanpedals.com/forum/index.php?topic=18394.0

best
Thomas

[Ettore_M]

Hi Ettore,

you didnt say if its for acoustic or electric guitar.
For acoustic you wont need a cabsim in front, maybe an EQ.
For electric its both.

Built something for live? Yes : http://www.madbeanpedals.com/forum/index.php?topic=18394.0

best
Thomas

Thanks Thomas for the uber quick answer.. Great build too!
Yeah, that's the kind of setup I want. However, I want it for use with electric guitar. Sorry I didn't clarify that.
So, you say I want both Cab Sim and balanced output for XLR. Right?
Also, does this seem to work good for your friend in live conditions?

Thanks a lot.

Hector

[Thomas_H]

Hi Ettore,

You want the cab-sim and the XLR-out.
It works great for him. The picture was taken on a church stage and the signal was directly mixed into the PA.

best
Thomas

[Ettore_M]

So, after a lot of searching, and reading, I decided to build this cab sim posted by JOK3RX over at DIYSB.

http://www.diystompboxes.com/smfforum/index.php?PHPSESSID=336c4544582c9b6253da6476aeaa73df&topic=106185.msg959772#msg959772

Before it, there will be a ROG Azabache (amp-in-a-box) and after, a balanced output.
So there is another question. I searched for balanced-line driving and it seems to me that there are ICs that do exactly that (for example, some THAT ICs) and the DIY way with simple TL072 or NE5532 buffers.
As I don't know anything about balanced or unbalanced lines, is there a better way for balanced XLR output and do you have any specific schematics to recommend for that application?

Hector

[kgull]

Hey, I'm just finishing up a layout for the fender lxh2 cab sim, planning to order three from OSH Park for testing this weekend. If you'd like, I can send a board your way to try out. Uses a TC1044 for dual rail power from 9V and will fit in a 1590B.

Let me know if your interested.

[Ettore_M]

Hey, I'm just finishing up a layout for the fender lxh2 cab sim, planning to order three from OSH Park for testing this weekend. If you'd like, I can send a board your way to try out. Uses a TC1044 for dual rail power from 9V and will fit in a 1590B.

Let me know if your interested.

That's very kind of you, kgull! Thanks 

PM sent 

Hector

[Willybomb]

The THC line driver really is the easiest way to go.

I did something similar to what you're looking at doing, I'm going to build a simpler one, omitting the eq section and using that cabsim you linked to as I've built it and think it sounds better than the Marshall one I used.

http://www.madbeanpedals.com/forum/index.php?topic=17425.msg166656#msg166656

[Lubdar]

Heh interestingly, I'm working on the same type of project right now, Thunderbird->cab sim->Line driver out

[Muadzin]

I'm thinking of creating a 19" rack unit with three cab sims. My idea is to split the ingoing signal with a buffer, so it will always have a steady thru signal going into a power amp with actual cabinets for stage sound, and the other signal will go into a cab sim and then a THC balanced line driver, with ground lift and phase reversal switches. This setup times three. The one thing I haven't made up my mind yet is which cab sim to use. Having used two 4x12" Marshall cabs in rehearsal I'm kinda used to that sound.

[Thomas_H]

The ROG Condor is always a good choice as it has a "Marshall Mod"  to adapt to its frequency range.

By the way: I have stocked a few THAT 1646 chips for the balanced line driver as the chip is hard and expensive to get elsewhere. Its superior to any OpAmp-based solution.