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channel inserting a stomp box

Posted: Sat Dec 16, 2006 11:39 pm
by haricots
As far as wiring it up, do I need a 1/4" stereo male to dual 1/4" mono males? This is for connected a standard 1 in 1 out flanger guitar pedal to a Mackie 1202 mixer.

Thanks in advance.

Posted: Sat Dec 16, 2006 11:55 pm
by Tidda
Yes, on the stereo male plug the tip is the send and the ring is the return.

Tidda

Posted: Sun Dec 17, 2006 12:25 am
by MissionBrown
Yeah I think so

Posted: Mon Dec 18, 2006 12:59 pm
by Spike Vincent
Yup.Use a Y splitter.Which is a 1/4" to 2 mono 1/4" .

Posted: Mon Dec 18, 2006 4:24 pm
by operator
i think you're 'supposed' to attenuate the signal going into the stomp box though, or maybe DI the output before it goes back to the mixer. i don't remember exactly, but i read something about it in a recording magazine a couple of years ago. i'm sure you don't have to, like it will work anyways, but there maybe be some impedance matching issues or something. maybe someone else knows more about this?

Posted: Mon Dec 18, 2006 11:28 pm
by Tidda
Depending on the model

MS-1202 : output(tip): 120Ohm, input(ring): >10kOhm
MS-1202VLZ (Pro) : output(tip): 120Ohm, input(ring): >2.5kOhm

Tidda

Posted: Tue Dec 19, 2006 5:44 am
by Stab Frenzy
operator wrote:i think you're 'supposed' to attenuate the signal going into the stomp box though, or maybe DI the output before it goes back to the mixer. i don't remember exactly, but i read something about it in a recording magazine a couple of years ago. i'm sure you don't have to, like it will work anyways, but there maybe be some impedance matching issues or something. maybe someone else knows more about this?
It's not so much the impedence, it's the level that really messes you up. The out from the mic pre is at line level but the pedal wants instrument level which is much lower, so it needs to be attenuated or it'll clip really badly. The input on the insert is expecting a line level signal too so the instrument level out from the pedal may be too low, although many will have enough gain on the output section to get it up there.

Posted: Tue Dec 19, 2006 11:04 am
by aeon
If you want to send to a (guitar) pedal from a line-level source, i.e., DAW send, or mixer insert/send, you need to send the signal to a re-amp device first.

Then as you come back from your analog pedal(s), you need to use a DI box - active if you want to go back into a DAW or mixer at line level - or a passive DI if you prefer to go back in via a mic pre.


cheers,
Ian

Posted: Tue Dec 19, 2006 4:12 pm
by Tidda
Mr. Haricots,

Did you already have a chance to try it?
I have got an MS-1202VLZ myself and am interested if it works.
I don't have a stompbox myself or the necesarry cables (yet).

Also, take into consideration that the 'trim' control is pre-insert, so I guess you could use that to lower the signal going to the stompbox.
And, as Stab Frenzy says, the stompbox might have enough output gain to feed the signal back to the mixer.
The gain control on the mixer is of course post-insert, but it wouldn't be very practical if you would have to set that all open all of the time.

Just curious if it all works without any extra gear. The manual is a bit vague, using terms as 'almost any device'.

Tidda

Posted: Tue Dec 19, 2006 6:30 pm
by aeon
It isn't just a question of levels - the re-amp device and DI box are also addressing impedance issues.


cheers,
Ian