Capturing audio channels 3 & 4

I'm new to fcp about 3 months ago, going through tutitorials and researching topics through this forum to answer a multitude of questions. This topic has been covered, but I'm following the directions in other threads and fcp manuals chap 20, and I'm still having problems. So here's my first post.
I have a couple of canon xlh1s, and am trying to capture channels 3 & 4. I have a power macbook pro, 2 gig of memory. g-raid drive in firewire 800, canon on the firewire 400.
On the camera, I'm recording on all 4 channels, and can monitor all 4 channels with the headphones on the camera.
In FCP, Audio/Video Setting, under capture presets, I dupped the DV NTSC 48 kHz preset, and changed the Input under the Quicktime Audio Settings to Second 2 channels, and the format to 32 k 16 bit-2 channel. I dupped another preset for channels 1 & 2.
Now, when trying to capture the 2nd pass to get channels 3 & 4, on the log & capture window, capture/input, I select the 2nd 2 channels, but still get channels 1 & 2 off of the camera.
What am I doing wrong?
MacBookPro Mac OS X (10.4.5) 2 gig ram

sorry, I don't think that is it. I've been all through the canon manual, and don't see where that is selectable. I thought I've seen other posts showing where you're suppose to be able select it through the log and capture window (if you have your capture settings set up properly).
Can anyone else help out?

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the limitation is in the hardware you are using. DV as a format is used widely in many spectrums of todays broadcast world, but your basic DV hardware is very much consumer equipment with consumer limitations ... upgrade your hardware and the problem will go away.
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Thanks for the responses, guys. I guess I wasn't really all that clear. Something to do with FCP 6 and the Kona III card is telling FCP to set up each project with 16 channels of audio - and ONLY 16 channels of audio. Anywhere that there is a drop-down or check box, the drop-down or check box is either grayed out or only provides choices centered around 16 channels of audio. So, for example, let's say I go to the "Capture Presets" tab under "Audio/Video Settings" and click on "Edit" to modify the current preset. Under "QuickTime Audio Settings," I select "AJA Kona" as my device. Then, under the "Format" drop-down, I have four possible audio formats to choose from - ALL of them showing 16 channels (e.g. - "48.000 khz 24-bit 16-channel"). Nowhere is there an option of selecting, say "48.000 khz 24-bit 2-channel." Everything under every tab specifies 16-channel. So, as a result, I can't tell it to disable the fourteen tracks that I'll NEVER use. I even tried starting with the "Generic" settings tab, used to create your own presets, and even that would ONLY allow me 16-channels - and I couldn't over-ride it!
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Correct me if I'm wrong, but it is NOT possible to capture 4 audio channels all at once in FCP?
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As Thomas suggested in that thread, "Capturing Multiple Audio Channels", in chapter 20 of the the FCP User Manual is a great resource. But I'll break it down for you anyways...
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Go To-
Menu/Audio Setup/Audio Mode/ 12bit 1/2 , 3/4
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go for option 2,
you can de-select the errant audio track from the source side when you create your sequence so you don't have to do it to all edits. thats one of the joys of editing!
you may find you have some good sound on the other mike though don't just throw it away
best regards
andy

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Thanks for the responses, guys. I guess I wasn't really all that clear. Something to do with FCP 6 and the Kona III card is telling FCP to set up each project with 16 channels of audio - and ONLY 16 channels of audio. Anywhere that there is a drop-down or check box, the drop-down or check box is either grayed out or only provides choices centered around 16 channels of audio. So, for example, let's say I go to the "Capture Presets" tab under "Audio/Video Settings" and click on "Edit" to modify the current preset. Under "QuickTime Audio Settings," I select "AJA Kona" as my device. Then, under the "Format" drop-down, I have four possible audio formats to choose from - ALL of them showing 16 channels (e.g. - "48.000 khz 24-bit 16-channel"). Nowhere is there an option of selecting, say "48.000 khz 24-bit 2-channel." Everything under every tab specifies 16-channel. So, as a result, I can't tell it to disable the fourteen tracks that I'll NEVER use. I even tried starting with the "Generic" settings tab, used to create your own presets, and even that would ONLY allow me 16-channels - and I couldn't over-ride it!
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