I assume you are already using the 4 mic inputs on the 002 and you have the 3124 feeding the 4 remaining line inputs.

To add further channels you need to use either the S/PDIF or the ADAT lightpipe digital inputs to the 002. S/PDIF will give you 2 channels at up to 96KHz, or ADAT will give you 8 channels at 48KHz.

The choice of high-quality 2-channel S/PDIF output pre-amps is a bit limited, but includes the Audio & Design DMA2 and the Neve 1073DPD. Both of these would need an external AES-S/PDIF balun transformer.

If you think you might need more than 2 extra channels in the future, then consider a 4-channel or 8-channel pre-amp with ADAT outputs. We can advise further on those options if you should decide to go that route.

Don't forget to set your 002 clock source to be ADAT or S/PDIF as appropriate.

Im recording drums I have 3 of the diggi pre for toms and 1 for the Hi-hat and I using the api for snare- bass- and overhead. I would like to add 2 room mics and after that a second mic for the snare and the yamaha sub-kick wich i don't no if its need 1 preamp for itself so I dont no what to do what do you recomend?

"Don't forget to set your 002 clock source to be ADAT or S/PDIF as appropriate."

HOw I do that?

In general with interfaces there is either a switch on the unit for clock source, or there will be something in the software to configure it.

fededrum wrote: Im recording drums I have 3 of the diggi pre for toms and 1 for the Hi-hat and I using the api for snare- bass- and overhead. I would like to add 2 room mics and after that a second mic for the snare and the yamaha sub-kick wich i don't no if its need 1 preamp for itself so I dont no what to do what do you recomend?

You need an 8-channel pre-amp with ADAT output. What make and type you should get depends to a great extent on how much do you want to spend. What's your budget?

fededrum wrote: "Don't forget to set your 002 clock source to be ADAT or S/PDIF as appropriate."
HOw I do that?

If you get the 8-channel pre-amp with ADAT output, set the Digi002R clock source to be "ADAT" in ProTools.

my budget is 2.000 may be a little more but I couldn't found a good 8 channel, even 4. Any suggestion? Do you thing that a preamp should be my next purchase or maybe a good compressor wold be a better chose.(is a drum studio)

do I need a converter (like apogee)from digital to analog to each channel right? So even if I buy a preamp 4-8 channel I still need a converter?

If you get one with the ADAT output, that is in digital format. I believe that is the only option left to add more (than 2) inputs to your current setup - though you still have 2 channels of S/PDIF as well (I think). There are a few good S/PDIF preamps out there too, and that is a digitally converted signal as well.

There are several options for 8 channel ADAT preamps.

fededrum wrote: my budget is 2.000 may be a little more but I couldn't found a good 8 channel, even 4. Any suggestion? Do you thing that a preamp should be my next purchase or maybe a good compressor wold be a better chose.(is a drum studio)

fededrum wrote: do I need a converter (like apogee)from digital to analog to each channel right? So even if I buy a preamp 4-8 channel I still need a converter?

Budget 2000 what? If it's USD, then try the RME OctaMic II for a pre-amp with ADAT outputs. It contains an Analogue-to-Digital Converter (ADC) per channel, so you don't need a separate converter.

I recommend you track (record) the raw microphone signals and then apply compression, EQ etc only as necessary when mixing.

thank you!!! exelent recomendation! Yes USD. It's any other option maybe 4 chanell?
Thank you again!