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Topic: question on session 400 |
Don LaCourse
From:
Spring Hill, FL, USA
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Posted 13 Oct 2005 12:54 pm |
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i have an early 70s session 400 amp that i want to use with a profex11,with the newman settings.
jeff always said to jack into the power amp jack in the back of the nashville or vegas amp. and my profex works fine like that bypassing everything on the front of the amp.but my session 400 has no power input jack in the back.so can anyone tell me the proper way to hook it up without blowing any thing up. i blew up a session500 one time jacking up the three cord system. so i want to check it out with you guys that know electric. i want to use the newman settings and if i jack in the front would that work ok? thanks, Don. |
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Bill Stroud
From:
Dresden, Tennessee, USA * R.I.P.
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Posted 13 Oct 2005 1:31 pm
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I use several different setups, one being the Session 400 and an Evans amp. The way I've always hooked up is in the front of the Peavey Send and Return, from the Volume to the Input (1) and your profex ll in the return and send jacks in the front will just fine, I use the Evans dry from the volume to input (1).
It will be ok.
email me at bjsbars@frontiernet.net or call me 731-364-3519.
Hope this helps you.
Bill |
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Bill Terry
From:
Bastrop, TX
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Posted 13 Oct 2005 2:28 pm
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Don,
With that amp (old Session, no Pre Send and Return right?) I think your only option is to go from the guitar and volume pedal into the Profex and out of the Profex into front jack on the Session. You'll have to balance the output level of the Profex and the input Volume of the Session.
Also, the Session has the Sensitivity control that you can use to 'pad' the input volume down an bit. Maybe Brad or some Session 400 expert can provide more info.
I've used external processors/preamps in front of my old Session a time or two, no probs, you just have to take a little care with the output volume.
Or... you could possibly have some tech figure how to mod your Session for an effects loop.
[This message was edited by Bill Terry on 13 October 2005 at 03:37 PM.] |
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Jim Harper
From:
Comanche, Oklahoma, USA * R.I.P.
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Posted 13 Oct 2005 3:09 pm
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| Don,i have a session 400 LTD and no plug on the back. I go from guitar to Hilton to Front of pro-fex then on back of pro-fex to low channell on the amp. Yes i turn every thing down then work on input on pro-fex til i get a green light blink then go to back and set out-put level about middle then set amp volume that i like. It is pretty hot so i never go higher than 3-5==Jim Harper |
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Dennis Detweiler
From:
Solon, Iowa, US
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Posted 13 Oct 2005 5:44 pm
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Since you'll have to use the preamp of the Session 400, as a starting point you might try the flat tone settings that Brad posted earlier.
Presence: 5.5
Treble: 5.5
Mid: 10
Shift: 10
Bass: 6
Dennis |
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jim milewski
From:
stowe, vermont
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Posted 14 Oct 2005 3:22 am
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| I never had a problem going right into the amp inputs, you may cut the signal from the effects unit some to prevent overdriving the pre amp stage of the venerable Session 400. After all the Session has a sweet tone circuit, be a shame not to use it, I'm pretty sure the sensitivity adjusts the input from the pre amp stage into the power amp, I like to keep that up. The Session 400 never ceases to amaze me as how great an amp it is. |
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Bill Terry
From:
Bastrop, TX
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Posted 14 Oct 2005 7:46 am
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| Quote: |
| After all the Session has a sweet tone circuit, be a shame not to use it.. |
My thoughts exactly....
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| I'm pretty sure the sensitivity adjusts the input from the pre amp stage into the power amp, I like to keep that up. |
I think you may be right, so it wouldn't help prevent preamp clipping. Anyway, the preamp on those old Sessions seems to have a lot of headroom to me...
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| The Session 400 never ceases to amaze me as how great an amp it is. |
I agree 100%.[This message was edited by Bill Terry on 14 October 2005 at 08:49 AM.] |
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Don LaCourse
From:
Spring Hill, FL, USA
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Posted 14 Oct 2005 8:27 am
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| thanks for all the info. guys i went in the second input on the front and it works ok except a little line noise, but im working to get it adjusted, Don. |
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Jack Stoner
From:
Kansas City, MO
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Posted 14 Oct 2005 9:55 am
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Don, if that Profex II doesn't have the "mod kit" (replacement Op-Amp chips), get that from Peavey and install it. That will clean up the Profex II quite a bit and also help with the noise.
Also cut back on the output gain and that will also help the noise. Actually it sounds like the output gain is set too high since you have to use "low" input. The Profex II is capable of "line level" levels (approx 1 volt) where an instrument level is n the millivolt range. Use it with the minimum output level (that's useable) with the amp. |
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Don LaCourse
From:
Spring Hill, FL, USA
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Posted 14 Oct 2005 11:46 am
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| got it Jack, i cut the output level, that cleaned it up,im just expermenting new toys i just bought, a friend of mine in clearwater had to hang it up so i got his pro three and session 400 and profex. he bought them all new. so now i got three of the best, mullen D10- emmons Lashley Legrande, and pro three. |
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Ken Fox
From:
Nashville GA USA
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Posted 15 Oct 2005 6:53 am
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Run two cables from the left and right outputs to the #1 and #2 ioput jacks of the Session 400. You will get about 6bB more pad on the input and also get the full effect of the Profex 2 (the left out is NOT a mono jack as stated, stereo effect mixes will be lost using only the left out).
A jacking arrangement can be done to provide an effects loops on the amp, itrequires a bit of drilling to add another jack to the back, and rewiring the existing "booster amp" jack. |
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Don LaCourse
From:
Spring Hill, FL, USA
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Posted 15 Oct 2005 9:08 am
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| thanks, ken , ill try that. i have two profex11s, i want to send to you one at atime for the mod. and check up. i also have the card ill send you to check out. Don. |
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