Horrible noise on bass amp when recording!

[idledude]

hello!

i was recommended to use a DI box when recording the bass. so i record the DI box signal and the amp signal, which i mic up.

its sounds really good but the DI box signal is very noisy and sometimes the amp signal is.

on there own separately they are perfect. i have recorded keyboards with the DI box and there is no noise!

i have tried different leads, plugged the mac and amp into different sockets, i even tried to bypass the DI box using a splitter, but no change.

i think i have isolated down to when the amp is connected to my 1814 via the DI or whatever it picks up the noise.

i think its the mac, cos when the mac "thinks" the noise changes.

has anyone heard of this before and how can i stop it?

Mac Mini, FW 1814, behringer active DI box (http://www.behringer.com/DI20/index.cfm?lang=ENG), squire bass, carlsbro bass bomber amp

thanks!

[M.Brane]

Originally Posted by idledude

behringer active DI box (http://www.behringer.com/DI20/index.cfm?lang=ENG)

There's your problem right there: crappy DI box with poor noise rejection.

How about losing the DI, and just recording the amp? It works for me 90% of the time.

[idledude]

thanks!

can you recommend a DI box please?

i have always recorded using the the amp, but it sounds great mixed with the DI Box!

[bradch00]

Originally Posted by idledude

thanks!

can you recommend a DI box please?

i have always recorded using the the amp, but it sounds great mixed with the DI Box!

I usually don't jump up and down about a single vendor, but for DI's, these guys have such a good rep I couldn't resist;
http://www.radialeng.com/re-products.htm

[M.Brane]

This one is quite popular.

[Eric Seaberg]

Originally Posted by idledude

its sounds really good but the DI box signal is very noisy and sometimes the amp signal is.

Can I ask how you have the DI connected? Did you try lifting the GROUND on the DI to see if the noise went away?

[idledude]

i have flicked the ground switch but still noise!

i have also tried plugging the amp and the mac into the same circuit board but still noise!