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Topic: Peavey amp makes loud "pop" sound when turned on |
Jacek Jakubek
From:
Mississauga, Ontario, Canada
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Posted 11 Mar 2020 10:34 am |
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I recently got a Peavey amp (Nashville 400) and when I turn it on, it makes a sort of loud "pop" sound. Otherwise the amp works OK and doesn't make this sound when I turn it off, just when turning on. My other Peavey
amps don't do this.
Anyone know why this happens and if it is a sign of a problem with the circuitry?
I have taken out the chassis to spray some deoxit in the pots, so if there is an easy fix for the "pop" I'm willing to try it. |
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Dale Foreman
From:
Crowley Louisiana, USA
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Posted 11 Mar 2020 11:01 am Pop
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Try unplugging the reverb pan and try turning it on and see if that helps.
_________________
Rittenberry Prestige(2) |
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Larry Dering
From:
Missouri, USA
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Posted 11 Mar 2020 1:26 pm
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| Many of the Peavey amps I own have done this since new. If you search the forum, it has been covered before and deemed normal. Turn your master volume all way down before shutting off helps some. |
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Pete Burak
From:
Portland, OR USA
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Posted 11 Mar 2020 2:51 pm
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| Perfectly normal. |
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Lee Baucum
From:
McAllen, Texas (Extreme South) The Final Frontier
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Posted 11 Mar 2020 3:16 pm
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| The Peavey Pop |
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Jacek Jakubek
From:
Mississauga, Ontario, Canada
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Posted 11 Mar 2020 3:40 pm
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Thanks, guys. I feel re-assured  |
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Gaylen James
From:
Portland, Oregon, USA
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Posted 11 Mar 2020 6:54 pm
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| Mine does it too |
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Paul Wade
From:
mundelein,ill
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Posted 12 Mar 2020 5:30 am
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me to pop goes the peavey  |
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Tucker Jackson
From:
Portland, Oregon, USA
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Posted 12 Mar 2020 10:10 am
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The bigger question is: does anybody have a Nashville 400 that doesn't pop when you turn it on?
Mine is 'normal' in that it pops when you turn it on and it has continual reverb problems with the molex connector. A great amp with two known quirks... |
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Maurice Daulton
From:
Kentucky, USA
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Posted 28 May 2020 8:29 pm pop in amp
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| I had this problem with a NV 1000. Some players told me you could destroy you speaker with it. I took mine and had it repaired. Do not remember what they did,or where I took it. |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 28 May 2020 9:23 pm Re: pop in amp
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| Maurice Daulton wrote: |
| I had this problem with a NV 1000. Some players told me you could destroy you speaker with it. I took mine and had it repaired... |
That's pure bunk, they told you wrong. 
The pulse (pop, snap, crack, or whatever you want to call it) is far too low in amplitude and too short in duration to cause speaker damage.
But it can be irritating. |
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Georg Sørtun
From:
Mandal, Agder, Norway
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Posted 29 May 2020 4:03 am Re: pop in amp
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| Donny Hinson wrote: |
| The pulse (pop, snap, crack, or whatever you want to call it) is far too low in amplitude and too short in duration to cause speaker damage. |
That is usually the case, yes. I have however been presented amps that held the DC-uppload through the power-amp long enough to potentially do damage to speakers. Speakers don't tolerate DC well.
| Donny Hinson wrote: |
| But it can be irritating. |
For the most irritating and/or potentially damaging cases – that cannot be fixed without performing a total rebuild, I have in some cases added a timed disconnect/drain circuit between amp and speaker-connection. A 10-15 seconds silence at turn-on/off, and all is good. |
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Jack Stoner
From:
Kansas City, MO
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Posted 29 May 2020 4:56 am
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This is a common (and non destructive) trait in many older Peavey amps. It does no harm to the equipment. Its not just the Peavey steel guitar amps. I had a Peavey, mid 90's TNT 115S, bass amp that did the same thing. Peavey fixed it in later amps such as the Nashville 112.
The issue is the power supply DC voltages come on immediately when powered on and the initial voltage surge causes the pop. |
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Jim Saunders
From:
Houston, Texas, U.S.A.
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Posted 29 May 2020 6:01 am Pop
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| I have a NV112 that does this too. I even sent it back to Peavey to fix it and it still does it. You can plug a cord into the headphone jack and turn it on. Then you won't hear a thing. Unplug the jack and carry on. |
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Kevin Maki
From:
Trimountain,MI. U.S.A.
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Posted 4 Jun 2020 9:16 am Peavey pop
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Thanks for posting your question. Mine started making a real loud pop that caused the speaker to move a lot when I turned OFF the amp. I sent in the chassis to Peavey and they corrected the problem along with getting the reverb to work again. I was told that they touched up a few solder joints. This was last Summer. Now the reverb quit again and it is making the less offensive pop when I turn it ON. Now with all of the replies,I'm seeing that it's a common thing.
_________________
S10 GFI ULTRA,Peavey Powerslide,Quilter Steelaire amp,Nashville 400 amp. |
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Steve Hinson
From:
Hendersonville Tn USA
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Posted 4 Jun 2020 1:06 pm
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Don't worry-they all do it!
SH |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 4 Jun 2020 4:10 pm
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| Steve Hinson wrote: |
| Don't worry-they all do it! |
Yes, and the cause is simply a poor design.  |
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Ian Rae
From:
Redditch, England
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Posted 5 Jun 2020 12:06 am
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Any kind of switch-on thump on any amp (guitar or hi-fi) is unacceptable.
As Donny says, it's poor design - a polite expression for cheap laziness.
DC can and should be applied in a timely manner.
_________________
Make sleeping dogs tell the truth!
Homebuilt keyless U12 7x5, Excel keyless U12 8x8, Williams keyless U12 7x8, Telonics rack and 15" cabs |
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Bob Carlucci
From:
Candor, New York, USA
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Posted 5 Jun 2020 2:50 am
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my old pv does the opposite.. loud as hell pop when turned off, quiet when started up... bob
_________________
I'm over the hill and hittin'rocks on the way down!
no gear list for me.. you don't have the time...... |
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George Kimery
From:
Limestone, TN, USA
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Posted 5 Jun 2020 5:46 am Peavey amp makes a loud pop sound when turned on
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| I've also had this problem with Peavey amps. I just turned the volume off before turning it on. Pretty common thing that is not harmful to your amp. |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 5 Jun 2020 4:33 pm
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| Bob Carlucci wrote: |
| my old pv does the opposite.. loud as hell pop when turned off, quiet when started up... bob |
Were you standing in front of the amp, or behind it?
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Georg Sørtun
From:
Mandal, Agder, Norway
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Posted 6 Jun 2020 1:49 am
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| Ian Rae wrote: |
Any kind of switch-on thump on any amp (guitar or hi-fi) is unacceptable.
As Donny says, it's poor design - a polite expression for cheap laziness.
DC can and should be applied in a timely manner. |
Granted.
Now, what do you (anyone?) want to eliminate;
1) the causes (there are quite often many points in amps where charge/discharge can cause such signal-effects)
or
2) the effect (the "bump", "thump" or "bang" sound in the speakers).
Not to say that you can not have both, but in many cases component-drift/aging can make a "perfect" amp-design go bad over time even if it works fine for its main purpose: to amplify a signal.
Just curious… |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 6 Jun 2020 5:35 am
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| Georg, how about using hybrid caps in the power supply? That might be a good place to start! |
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Georg Sørtun
From:
Mandal, Agder, Norway
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Posted 6 Jun 2020 6:22 am
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Donny, the use of high-quality capacitors in the power supply, and anywhere else for that matter, is always a good way to reduce such problems/nuisances. Finding such high-quality components with low enough, and lasting, tolerances to be able to "match" them for balanced charging/discharging behavior, would make an amp seriously pricey.
Most amps designed with special attention to "quiet on/off", use a combitation of good components where it matters, and quick "mute/clamp" of the signal ways until the main circuits are stable. That too costs a little more, but is more reliable.
So my question is simply; if folks would be satisfied with amps designed not to "show off" any of these "on/off noise" effects, or if they demand flawless designs regardless of whether they can hear any such noises or not. |
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Chris Schlotzhauer
From:
Colleyville, Tx. USA
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Posted 6 Jun 2020 12:25 pm
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The Nashville pop
Sometimes mine is perfectly quite coming on....other times it's BOOM! I never know when it will do it.
I get a kick out of the looks I get on the bandstand...lol |
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