Reamping noise

[axeman720]

for those of you who reamp, do you get any excessive noise? my signal chain is countryman di -> pro tools, 002 output -> xamp. i am gettin excessive noise when i plug into my 5150 from my 002. i think its an impedance matching problem since the outputs of the 002 are HI-z its creating extra noise. BUT, i've also tried coming spdif out to another digital and using its balanced LO-z outputs to the xamp and i still get excessive. I'm 100% positive the noise is happening at or after the output of the 002. Do any of you guys who run HD and or anthing with Lo-z outs for reamping? I'm pretty sure i wont have this problem at the studio when i use the HD interfaces or mix interfaces. any help would be appreciated.

 

[Genius Gone Insane]

You probably already checked this but I'll put it here just in case:

1) are you sending the signal out to 5150 at 0dB?
2) did you record at instrument level gain?


...when problem-solving, always start with the simplest most obvious stuff first

 

[axeman720]

yeah that stuff is all set fine, i think i solved the problem by using the isolated out, reversing phase on the box and lifting both grounds. the noise is pretty minimal now, and when i do it on the hd systems its usually nonexistent. so we'll see.

 

[James Murphy]

seriously, i thnk the main thing that would help you is getting a quality Low-Z to HI-Z transformer, like the John Cunibertti Reamp, would be the best thing you could do to imrove your reamping, but if you do that and still have problems you might try an Ebtech Hum Eliminatorhttp://www.sweetwater.com/store/detail/Hum/.

anyway... your 5150's input is Hi-Z.

 

[egan.]

seriously, i thnk the main thing that would help you is getting a quality Low-Z to HI-Z transformer, like the John Cunibertti Reamp.

Shouldn't the X-amp he's using accomplish the same thing?

Axeman:
Where did you get the info that the 002's line level outs were significantly different impedence than any other box? This seems sort of odd.

 

[Andy Sneap]

no idea what the x amp is, but if you are getting a hiss that comes in real loud when quiet, I'd bet you've got some kinda impedence miss match. You need Hi Z output for reamping.

 

[Kazrog]

no idea what the x amp is, but if you are getting a hiss that comes in real loud when quiet, I'd bet you've got some kinda impedence miss match. You need Hi Z output for reamping.

He's probably talking about the Radial X-Amp, which looks like a great product, on par with the Reamp. I haven't used either myself, but I am going to get into some serious re-amping soon and I will be picking up one of these types of units for sure.

 

[DracWell]

so, andy/james... which would you recomend, the radial xamp or the cunibertti?

 

[axeman720]

yeah i was sure it was an impedance problem, as i stated in my first post. i really appreciate the suggestions guys and i was able to fix the problem here at home, by coming spdif out to a box with spdif in and LO-z outs to the radial xamp. I also had to use the isolated output and hit both ground lift switches on the xamp box. as of right now i'm glad i went with the radial because the cunniberti box doesnt have two outputs, the xamp luckily had a transformer isolated out in addition to the normal out. The isolated out had a second ground lift that i flipped that got rid of the noise. Pain in the ass to reamp here at the home studio, everything seems to be working fine when i'm at the real studio and using the outputs on HD interfaces, oh well.

I did alot of research and the xamp seemed to be a bit more developed than the cuniberti box, but i have not had a chance to A/B them, i liked the cuniberti when i used it, very solid unit, i'd love to see the noise differences between the two.

 

[DracWell]

hey axeman720, do you use the Radial J48 direct box too?
I'm thinking of buying the kit that sweetwater sells.

 

[Brett - K A L I S I A]

Couldn't your problem come from a +4db / -10db mismatch when coming out of your soundcard and in your xamp ?

 

[Lopes]

Couldn't your problem come from a +4db / -10db mismatch when coming out of your soundcard and in your xamp ?

That's what I would think the problem is because I had the same problem coming out of my 1010 into the X-Amp and a simple press of the +4db/-10db button on the 1010 solved that problem (Damn, I used the word problem a lot in that sentence).

 

[Sinister Mephisto]

Hey, thought I'd resurrect this thread rather then start a new one as I'm having a pretty similier problem. I way more noise reamping then I do just plugging my guitar into the amp. The noise seems to way much worse in the breaks between notes or on held notes (when the signal gets quiter), as described earlier in the thread. It sounds aweful on long held palm mutes. The note sounds fine and then the buzz just takes over the signal. I can post a clip if need be.

Anyway, looking to fix it.

Guitar > Redeye > 002 > Redeye > Maxon 820 > 6505+

If I get rid of the OD the noise is better, but I'd rather fix this then cover it up. What I'm wondering is where my problem actually starts. It sounds like I have an impedance mismatch, but where is it happening and can I fix it? Apparently the outs on the 002 are +4 so I'm not sure why that would be a problem, I'm using a balanced cable from the 002 to the Redeye, my DI tracks are playing back at unity.

I don't really have the means to do what Axeman did, so I'll mess around with everything tomorrow (it's too late to do tonight) but if anyone can point me in the right direction I'd appreciate it.

 

[MetalWorks]

I had the same problems in a thread I posted a few days back.

I determined that part of my noise problem was the AC adapter hooked up to my Maxon OD808 after its battery died.

Any chance you have an AC Adapter on your Maxon?

 

[Sinister Mephisto]

Not an adapter but I'm starting to think it might be the maxon more then anything. Could the brand of batttery I'm using make a noticable difference?

EDIT: clip

http://download.yousendit.com/531C804E6CAADA74

 

[Wolfeman]

Not an adapter but I'm starting to think it might be the maxon more then anything. Could the brand of batttery I'm using make a noticable difference?

EDIT: clip

http://download.yousendit.com/531C804E6CAADA74

thats a ground loop bro

 

[Loren Littlejohn]

Try the ground switch on the back of your amp (actually not sure if the 6505+ has it but the 5150 does so...) to get the least amount of hum. Next: Used a battery unless you have no other choice.

Next: Check your guitar cable.
Next: try engageing and disengageing the ground switch on the reamp box.


When I reamp it's MUCH queter than plugging in my guitar.

 

[James Murphy]

shit... i just snapped to who posted this thread... sorry Mark... lol. i had only read the posts, not really looked at the names. glad you got it sorted.

 

[Sinister Mephisto]

Try the ground switch on the back of your amp (actually not sure if the 6505+ has it but the 5150 does so...) to get the least amount of hum. Next: Used a battery unless you have no other choice.

Next: Check your guitar cable.
Next: try engageing and disengageing the ground switch on the reamp box.


When I reamp it's MUCH queter than plugging in my guitar.

I do have a ground switch of sorts. It has a + - and middle position, the hum is best when it's centered (which I almost always have it set on), I'm using a battery, engaging the earth lift on my Redeye makes the noise MUCH worse. I tried having everything plugged into the same power strip but no luck so far. Maybe it's my cable. I'll keep you guys posted. And thanks a lot for all the help!

 

[Keiffer]

keep all boxes and especially the redeye away from CRTs, transformers, A/C cords, etc. Walk around the room with the redeye and try to find a spot that's the quietest. I have a spot on the floor where my redeye is dead silent. otherwise, I get stay AC and CRT noise.

there's more than just grounding going on in your clip.

also, keep your runs as short as possible.

power all of your equipment from the same AC circuit