Author Topic: Losing volume 800B  (Read 80 times)

Offline Binkybongo

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Losing volume 800B
« on: July 11, 2019, 03:49:44 PM »
Hi the volume drops considerably on 800B then comes back. Occasional crackling also occurs. Can anyone help with a solution please? Cheers

Offline Rip Van Dan

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Re: Losing volume 800B
« Reply #1 on: July 11, 2019, 05:56:46 PM »
Hey Binkybongo,

There are a lot of things that could cause that problem but before you go down that rabbit hole you need to be sure all the jacks (input and output) are clean, especially the ones in the back of the amp.    Dirty or corroded jacks can cause the symptoms you're reporting.

To clean them, get some DeOxit5 (red label can) if you're in the US and pull out a 1/4" plug you can use for the cleaning.  Spray a small amount of the DeOxit5 inside the jack and also spray it on the barrel of the plug.  Then work the plug in and out of the jack 10 to 15 times to clean it.  Repeat with all the 1/4" jacks.  Pay particular attention to the jacks on the back of your amp.  The signal path goes through almost all of them.  Often, the unused jacks (perhaps effects out and in) are the problem because there's no plug going in or out of them to knock off any little corrosion as it develeops.  Wait about 15-minutes after treating all the jacks before powering up your amp so you give everything treated with the DeOxit time to dry out.

Make this part of the annual cleaning for your amp and you'll avoid any problems from corroded jacks.  If this clears it up, GREAT!   If it doesn't please let us know.  We have a few electronics gurus here at the site and they can help you diagnose it further if needed.

Dan
« Last Edit: July 11, 2019, 06:01:02 PM by Rip Van Dan »
Rip Van Dan
Dan Gracia
'82 US-made Fender Jazz Bass with maple neck
5-string Rogue LX405 Pro (Surprisingly good "no-name" bass)
WT500/800 Highwayman (signature model)
D.N.S 410-8, Eden EX112 x2
Line6 G10s wireless
==
spares:
Eden RS400, GK BK250, BPX115 cab, acoustic B410 cab, Sunn Beta 202 (2x12)

Offline Binkybongo

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Re: Losing volume 800B
« Reply #2 on: July 12, 2019, 04:46:57 AM »
Hey Binkybongo,

There are a lot of things that could cause that problem but before you go down that rabbit hole you need to be sure all the jacks (input and output) are clean, especially the ones in the back of the amp.    Dirty or corroded jacks can cause the symptoms you're reporting.

To clean them, get some DeOxit5 (red label can) if you're in the US and pull out a 1/4" plug you can use for the cleaning.  Spray a small amount of the DeOxit5 inside the jack and also spray it on the barrel of the plug.  Then work the plug in and out of the jack 10 to 15 times to clean it.  Repeat with all the 1/4" jacks.  Pay particular attention to the jacks on the back of your amp.  The signal path goes through almost all of them.  Often, the unused jacks (perhaps effects out and in) are the problem because there's no plug going in or out of them to knock off any little corrosion as it develeops.  Wait about 15-minutes after treating all the jacks before powering up your amp so you give everything treated with the DeOxit time to dry out.

Make this part of the annual cleaning for your amp and you'll avoid any problems from corroded jacks.  If this clears it up, GREAT!   If it doesn't please let us know.  We have a few electronics gurus here at the site and they can help you diagnose it further if needed.

Dan

Many thanks Dan, really appreciate it. I'm using neutrik cable to output in bridged mode. GuessI do as you suggested to the neutrik?
Cheers Bill

Offline Bassmann1968

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Re: Losing volume 800B
« Reply #3 on: July 12, 2019, 05:50:22 AM »
Hi Bill,
as Dan said, all jacks need to be cleaned!
Rock on!
Armin

PLEASE LIKE EDEN ON FACEBOOK!!!
No schematics available!!! Don't ask for it.
;)

WTP-Pre,1350,WTX260,WT300/400,WT1000,WTX1000N,NAV,WTDI
D112XLT,D210XST,D410XLT,D810RP,DNS410,DNS112

Offline Binkybongo

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Re: Losing volume 800B
« Reply #4 on: July 13, 2019, 03:03:55 AM »
Hi Bill,
as Dan said, all jacks need to be cleaned!
Rock on!
Thanks chaps :)
« Last Edit: July 13, 2019, 08:04:11 AM by Bassmann1968 »

Offline Rip Van Dan

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Re: Losing volume 800B
« Reply #5 on: July 13, 2019, 02:22:57 PM »
Many thanks Dan, really appreciate it. I'm using neutrik cable to output in bridged mode. GuessI do as you suggested to the neutrik?
Cheers Bill

Hey Bill,

I don't have a Speakon connection on my amp but I do have on on my 410 cab, so I just took a look at it.  If you look into the connector from the male end, you will see a number of exposed contacts.  I would suggest spraying some DeOxit5 in there and then connecting it to the amp. Hold the lock on the connector back and twist it back and forth about 10 to 15 times and that should clean it up just fine.  Probably not as much problem with corrosion on the speakon connectors because you twist to seat and also twist to release.  Still, it's worth doing.

Now...if Armin comes on here and says don't do that for some reason, then do what Armin says.  He's the real expert here.

Dan
Rip Van Dan
Dan Gracia
'82 US-made Fender Jazz Bass with maple neck
5-string Rogue LX405 Pro (Surprisingly good "no-name" bass)
WT500/800 Highwayman (signature model)
D.N.S 410-8, Eden EX112 x2
Line6 G10s wireless
==
spares:
Eden RS400, GK BK250, BPX115 cab, acoustic B410 cab, Sunn Beta 202 (2x12)

Offline Bassmann1968

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Re: Losing volume 800B
« Reply #6 on: July 14, 2019, 07:23:06 AM »
Yes, clean everything. Also the Speakon jacks.
Armin

PLEASE LIKE EDEN ON FACEBOOK!!!
No schematics available!!! Don't ask for it.
;)

WTP-Pre,1350,WTX260,WT300/400,WT1000,WTX1000N,NAV,WTDI
D112XLT,D210XST,D410XLT,D810RP,DNS410,DNS112