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Any issues with using a Sansamp DI as a preamp into a power amp?


johnbegone

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Hey guys, I had a thought the other day, I just moved to Chicago so a lot of my gear has to stay at our rehearsal space downtown. And while I feel like its a pretty secure building, we do share the space with some other guys and I don't necessarily like the idea of my full bass rig sitting down there. I use a Sunn 300T that's a pretty complicated amp, and I don't want someone thinking "oh hey, I'll just use this rig for today" and then f'ing it up, you know?

 

So yesterday I took my Sansamp DI down and plugged into the effects return of the Sunn, sounded fine. I'm wondering if I just go out and buy a cheap used power amp, could I use that as my rig? With the Sansamp? Then I could keep my Sunn at home, where its safe :)

 

I know that people do this with Sansamp RBI, but is it just like a more extensive version of the DI or no?

 

Thanks!

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It'll work, but you will not be anywhere near to driving an power amp to its full potential with a sansamp.


You'd be better off to just buy a cheap used bass head.

 

 

Diddo on the first part. I had to do this for a brief bit. I didn't need lots of power tho. Tone was more than fine.

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you won't have any control over your mid frequency with the DI. I'm running the RBI in a poweramp, and its glorious!

 

I've heard people say that the DI is more intended to be run into a soundboard and that it wasn't designed to run direct into a power amp. Couldn't tell you why, but, that's what I've heard.

 

Get the RBI and a power amp, rack it up, and your gold.

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not sure, i posted a thread similar to this one about a year ago, and asked around the local scene, and a lot of people were strongly discouraging the DI to a power amp.

 

just what i've heard, but regardless there remains the problem of not being able to manipulate mid frequencies

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I'm not looking for another bass head, I just have a DI and figured $100 might buy me a cheap power amp. It doesn't have to be super loud, just sound like a bass amp basically. I don't know, I may just keep the Sunn over there if its going to be an issue.

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I'm not looking for another bass head, I just have a DI and figured $100 might buy me a cheap power amp. It doesn't have to be super loud, just sound like a bass amp basically. I don't know, I may just keep the Sunn over there if its going to be an issue.

 

 

Lots of people have used a RBI/poweramp rig, nothing wrong with trying it out to see how it sounds/works. Also, if the output was ever an issue just throw a one space rack mixer in the rack to bump the level and rock on. No reason it has to be complicated or expensive. Maybe something like this...

 

http://www.musiciansfriend.com/product/Nady-RMX6-Rackmount-6Channel-MicLine-Mixer?sku=630417

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It's always handy to have a spare power amp lying around.


 

 

Hey, I've got one of those! I guess I don't understand why it would be quieter though? I mean, isn't the 1/4" output from this DI a line level output? I'm not using the XLR at mic level.

 

I mean, I may just buy a power amp and try it, because I need power amps for PA and such, so I don't care if I own an extra one.

 

Burdizzos, I actually just picked up an Avatar 2x12 and am considering doing your mod, thanks for putting all the info up about it that you did!

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It will work, but neither the RBI or the Bassdriver DI deliver sufficient output to fully drive a poweramp input.


Again, it will work, but the results will be underwhelming.

 

 

i've experienced quite the opposite with my RBI, its been through a QSC RMX 850, and a Crown XTI1000 and on both if the RBI level was too high it would clip the input signal. Just barely, but it would do it.

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i take it it is the bddi?

 

i use this and although i now plug into the amp input on my combo i did use it into the effects return as a preamp

it was just man enough to generate 100w from the amp stage

 

i got a stingray so i put it back in the main preamp input as the ray sounds better that way..the preamp is set flat of course since the ray as 3 band

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I use a Sansamp programable DI (3 channel) and have no problem driving my Carvin DCM 1000 power amp.
:thu:
This model Sansamp has a 1/4" out boost switch which lets you decide how much signal to send to your rig.


Dan

+1

 

I carry that SansAmp in my bass case as a spare pre-amp in case the Line 6 BODXTLive craters. I've tested the setup at a gig and it works fine.

 

Also, I've had no trouble with this setup into a Henry or ACME B2's(with the Line 6 used in front of the SansAmp). With this setup, the RBI is used to match the POD "sound" to the non-flat cabinet response(SWR). With ACME's, the RBI is used to get a bit more cut thru..they're already flat response. The RBI with the amp alone sounds GREAT too...

SansAmpDbxQSC.jpg

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Yes, and it sounds pretty darned good.




I don't know.

 

It's just amazing to think of all the preamp/power amp users out there, getting 400W out of what they think is a 1200W rig. :)

 

I have researched a few preamps on the net, and finding good output-to-the-amp data is hard.

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It will work, but neither the RBI or the Bassdriver DI deliver sufficient output to fully drive a poweramp input.

 

Sorry, but I call bull{censored} - the RBI has more than enough output level to drive any power amp; in fact that thing is hotter than hell, it's very easy to clip a power amp with one of those.

 

I've owned one for over a year, and I gig and rehearse with it.

 

Maybe you meant to say the DI?

 

The RBI is the rackmount preamp - it is designed to drive a power amp and does so very well in my opinion - a very hot preamp.

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Sorry, but I call bull{censored} - the RBI has more than enough output level to drive any power amp; in fact that thing is hotter than hell, it's very easy to clip a power amp with one of those.


I've owned one for over a year, and I gig and rehearse with it.


Maybe you meant to say the DI?


The RBI is the rackmount preamp - it is designed to drive a power amp and does so very well in my opinion - a very hot preamp.

 

 

There's no reason why the RBI or any other AC-powered preamp shouldn't be able to drive any power amp to clipping. Though a lot of them can't, especially with low output instruments.

 

Any 9V-powered DI or preamp, on the other hand is very limited in output voltage by the 9V power supply...

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There's no reason why the RBI or any other AC-powered preamp shouldn't be able to drive any power amp to clipping. Though a lot of them can't, especially with low output instruments.


Any 9V-powered DI or preamp, on the other hand is very limited in output voltage by the 9V power supply...

 

Right - I bet he mistyped that, since the OP was asking about the 9v unit.

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