Author Topic: F-1x preamp jumper settings (Read 1182 times)

David Houck · « **Reply #15 on:** January 10, 2005, 08:24:07 AM »

Bill; I always thought sharing a db among friends was nice .

David Houck · « **Reply #16 on:** January 10, 2005, 08:35:04 AM »

Michael; the S in the serial number indicates a Spoiler model. Spoiler electronics are volume, pickup selector switch, filter, Q switch. So no, your electronics are not standard Spoiler electronics as your setup has the pan control instead of the pickup selector switch. Your bass may have been originally ordered with the pan control or the bass may have been sent back to Alembic for modification. Perhaps if one of the moderators notices this, they can look up your serial number and check the build sheet.

palembic · « **Reply #17 on:** January 10, 2005, 08:37:22 AM »

Howdy Michael,

so kilts huh ...I think you've seen too much William Lawsons ads ...hehehehe!!!

Now Michael you must know that on an F1-X the bass and treble pots are ADDING between 0 and 10. The mid pot doesn't ad but it cuts less from zero.
In other words a flat signal would be: bass=0, mid = 10 and treble = 0.
That's what our al moder Mica taught us IFF I remember well.

Paul the bad one

(Message edited by palembic on January 10, 2005)

bsee · « **Reply #18 on:** January 10, 2005, 10:43:47 AM »

I thought flat was stated to be about 2-10-2.

David Houck · « **Reply #19 on:** January 10, 2005, 10:49:43 AM »

2-10-2 is what I recall as well.

palembic · « **Reply #20 on:** January 10, 2005, 12:25:26 PM »

Yo!
That's possible.
I remember that it was NOT 0-0-0.
So let's keep it 2-10-2 shall we???

PTBO

mrfunkwool · « **Reply #21 on:** January 10, 2005, 03:12:11 PM »

Here's my interpretation...
albeit it may not be correct.

bsee · « **Reply #22 on:** January 10, 2005, 03:27:15 PM »

That doesn't quite look right to me, but you don't specify what the scale means, so maybe I am misinterpreting it. If it's representing gain at the respective frequency, then I would think it would have to read as follows:
2-10-2 should be a flat line at 0. Mids can only go down from there, where bass/treble can go down a little and up a bunch. Since the mid control is cut-only, you can never have mids response above 0 gain.

mrfunkwool · « **Reply #23 on:** January 10, 2005, 03:42:54 PM »

yeah, I don't know the starting pts...

3 super major assumptions on my part.
1. Bass is boost starts at 0 work up
2. Treble is boost starts at 0 work up
3. Mid is cut starts at 10 and works down.

The mid is going down as you increase
that's why charting it looks weird. notice the
0,0,0 is the big bell curve... most mid...

Hey, I'm not an electrician, I could be totally wrong,
but I did sleep at a Holiday Inn last night...

mrfunkwool · « **Reply #24 on:** January 10, 2005, 03:47:21 PM »

Sorry, I should have just take away the scale on the left. It means nothing.

David Houck · « **Reply #25 on:** January 10, 2005, 03:59:23 PM »

Jeff; the bass, mid, and treble controls are interactive; moving one control pretty much moves the entire curve.

Running the Tone Stack Generator, adjusted for the F-1X, I entered a few settings and got the following graph:

David Houck · « **Reply #26 on:** January 10, 2005, 04:05:59 PM »

So, if I have the settings correct for an F-1X, it would seem that Paul's 0-10-0 is closer to flat than 2-10-2. In fact, the flatest line I was able to get, besides 0-0-0, is 0.4-10.0-0.0

mrfunkwool · « **Reply #27 on:** January 10, 2005, 04:27:55 PM »

Cool, thanks.

Should have known they were interactive.

Is this tone stack generator on their site somewhere?

So basically, the alembic elves are doing their best to give you that smile shape regardless of what setting you choose, huh?

David Houck · « **Reply #28 on:** January 10, 2005, 04:41:14 PM »

Go here to read about and download the Tone Stack Generator (TSC).
http://www.duncanamps.com/tsc/

When you first run the TSC, click on the Fender tab. Next you need to make two changes:

Double click on C2 and change its value from 100 to 47.

Double click on C3 and change its value from 47 to 100.

I believe those are the correct values for the F-1X; I got them from a prior post here in the forum. Don't forget to save this setup once you've made the changes.

I have found this tool to be very helpful in understanding what the settings are doing and how they work interactively.

/Edit

Also; the next time you run the TSC, it will open with the default setup; so you will have to open your saved file to restore the F-1X settings.

(Message edited by davehouck on January 10, 2005)

mrfunkwool · « **Reply #29 on:** January 10, 2005, 04:51:50 PM »

Thanks,

This tool clears up a bunch.

Glad I posted my bad rationale,
otherwise, I would have went on clueless.