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Topic: PV Nash 400 |
Ray Lamoureux
From:
Hartford,New York, USA
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Posted 29 Oct 2016 5:25 pm |
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It seams that I cannot get enough Bass on the 10th st.I cannot hear it when I use strings 4,6 & 10 on the Second fret,Pedal B on & Pedal A going down..The bass control is on full.Mid on 4,SH 800,HI & Pres on 5.
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Ray Lamoureux,Hartford,NY GFI 10st.,on double frame,& aTT-112 amp .. |
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Greg Lambert
From:
Illinois, USA
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Posted 29 Oct 2016 6:02 pm Re: PV Nash 400
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| Ray Lamoureux wrote: |
| It seams that I cannot get enough Bass on the 10th st.I cannot hear it when I use strings 4,6 & 10 on the Second fret,Pedal B on & Pedal A going down..The bass control is on full.Mid on 4,SH 800,HI & Pres on 5. |
Are you using a stiff thumb pick? If not try one. |
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Lane Gray
From:
Topeka, KS
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Posted 29 Oct 2016 6:08 pm
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I prefer the larger cabinet amps. I thought the N400 had less grunt than the Session 400 or 500.
You might try an extension cab to move more air.
You might also try replacing the opamp chips.
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2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects |
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Ray Lamoureux
From:
Hartford,New York, USA
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Posted 30 Oct 2016 11:00 am Pv 400
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| Lane Gray wrote: |
I prefer the larger cabinet amps. I thought the N400 had less grunt than the Session 400 or 500.
You might try an extension cab to move more air.
You might also try replacing the opamp chips. |
Are these the chips that Ken Fox sells????
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Ray Lamoureux,Hartford,NY GFI 10st.,on double frame,& aTT-112 amp .. |
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Dick Wood
From:
Springtown Texas, USA
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Posted 30 Oct 2016 12:53 pm
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You might check to see if your pre-gain knob is pulled out. It will add a lot of treble and take away some bass.
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Cops aren't paid much so I steel at night. |
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Ray Lamoureux
From:
Hartford,New York, USA
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Posted 30 Oct 2016 1:15 pm Pv Nash 400
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| Dick Wood wrote: |
| You might check to see if your pre-gain knob is pulled out. It will add a lot of treble and take away some bass. |
I check the Pre gain was pushed in.Lane Gray mentioned replace the Op-amp,Whatever that is???
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Ray Lamoureux,Hartford,NY GFI 10st.,on double frame,& aTT-112 amp .. |
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Ray Lamoureux
From:
Hartford,New York, USA
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Posted 30 Oct 2016 1:17 pm Re: Pv Nash 400
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| Ray Lamoureux wrote: |
| Dick Wood wrote: |
| You might check to see if your pre-gain knob is pulled out. It will add a lot of treble and take away some bass. |
I check the Pre gain was pushed in.Lane Gray mentioned replace the Op-amp,Whatever that is??? |
I thank U all who responded.
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Ray Lamoureux,Hartford,NY GFI 10st.,on double frame,& aTT-112 amp .. |
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Lane Gray
From:
Topeka, KS
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Posted 30 Oct 2016 3:37 pm
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Those are the ones that Ken sells. I think he also replaces some other components.
As for "whatever they are", if you pull the chassis from the cabinet, they're the 8-pin IC chips in sockets.
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2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects |
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Ray Lamoureux
From:
Hartford,New York, USA
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Posted 30 Oct 2016 6:25 pm Pv 400
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| Lane Gray wrote: |
Those are the ones that Ken sells. I think he also replaces some other components.
As for "whatever they are", if you pull the chassis from the cabinet, they're the 8-pin IC chips in sockets. |
THANKS Lane,Will do...
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Ray Lamoureux,Hartford,NY GFI 10st.,on double frame,& aTT-112 amp .. |
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Glenn Suchan
From:
Austin, Texas
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Posted 31 Oct 2016 6:18 am
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| Lane Gray wrote: |
Those are the ones that Ken sells. I think he also replaces some other components.
As for "whatever they are", if you pull the chassis from the cabinet, they're the 8-pin IC chips in sockets. |
Right you are, Lane. I replaced the factory Op-Amp IC chips in my Nash 400 with the replacement kit that I bought from Peavey. Besides the Op-Amps there are resistors and capacitors which are replaced. Keep in mind, after a certain date/serial number sequence Peavey started putting the upgrade in the amps during assembly. Mike Brown of Peavey can give the transitional date or serial number.
Around the same time that I bought the replacement components from Peavey I also bought an Evans SE200 amp. When I completed the Nash 400 upgrade I compared the two amps. Sonically they were very close - the Peavey now has none of the honky mids, and plenty of bass. I also replaced the factory power cord on the Peavey with an extra long cord bought from Evans.
I use these two amps interchangeably with very little, if any difference in the sonic characteristics of my rig. Any perceivable difference is probably due to the differences of the speakers (Peavey's "Black Widow" versus Evans' Eminence).
Keep on pickin'!
Glenn
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Steelin' for Jesus |
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Jerry Overstreet
From:
Louisville Ky
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Posted 31 Oct 2016 6:59 am
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Which speaker is in your NV400? Late 80's, early 90's amps used the 1501DT-4 which is a Deep Throw basket ass'y. Peavey used these for a while then went back to the 1501SB-4 Shallow Basket speaker. They determined that the short basket has a better low end than the DT.
There will be a label near the terminals that will ID your speaker type. You may need a mirror to see it.
If it's the DT series, swapping the basket for the SB will result in more bass.
The DT speaker will be marked DT on the label, have square frame members and look like this: The magnet may or may not be the same, but that is not really important.
The Shallow Basket looks like this:
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Richard Lotspeich
From:
North Georgia
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Posted 1 Nov 2016 5:13 pm NV400 deep tone
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Iv'e got a black trim NV400 borrowed while fixing mine. I'm running a Hilton pedal, and a single coil Mullen p/up. The speaker is the flat mag 1501 I'm thinking,and I can't get the bottom end turned down enough. Not s/numbered to have the chips, but it might.
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Dick Lotspeich |
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Steven Paris
From:
Los Angeles
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Posted 5 Nov 2016 6:31 pm
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The "tone mod" caps/resistors from Peavey should improve the bass response noticeably. The cleanest, quietest sound will be from OPA1642 opamps instead of the stock RC4558s or the replacement OPA2604s.
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Emmons & Peavey |
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Glenn Suchan
From:
Austin, Texas
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Posted 8 Nov 2016 6:13 am
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| Jerry Overstreet wrote: |
| Which speaker is in your NV400? Late 80's, early 90's amps used the 1501DT-4 which is a Deep Throw basket ass'y. Peavey used these for a while then went back to the 1501SB-4 Shallow Basket speaker.... |
Jerry, the amp I modded with the Peavey factory kit has the 1501-DT speaker.
Keep on pickin'!
Glenn
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Steelin' for Jesus |
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