Pop, snap, odd sounds then works fine.

Discussion for the new Mark V

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OldTelecasterMan
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Pop, snap, odd sounds then works fine.

Post by OldTelecasterMan » Sun Oct 23, 2016 9:45 am

My amp began making odd sounds for about 45 seconds to a minute after turning it on. I unplugged everything except the speakers. I changed all the pre-amp tubes one at a time and all 4 of the power tubes with no change. It happens in both the 45 and 90 watt settings but NOT in the 10 watt setting. It is not channel specific as it happens with all three of the channels. It starts about 3 seconds after I take the amp off of standby and lasts right about a minute or a little less. Then everything tapers off and the amp works fine. Any ideas?
Boogie F-30
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Nicklotsaguitars
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Re: Pop, snap, odd sounds then works fine.

Post by Nicklotsaguitars » Sun Oct 23, 2016 5:01 pm

Could be dirt inside the 2 output valve sockets, furthest from the power transformer.
They're not used at all when the amp is in 10watt mode. They only have the heater element running.
If you're going to go spraying cleaner in there. Or poking around (something I don't recommend), please ensure the amp is fully discharged beforehand.
some guitars and some amps

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OldTelecasterMan
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Re: Pop, snap, odd sounds then works fine.

Post by OldTelecasterMan » Sat Oct 29, 2016 12:49 am

It's in the Shop... The Boogie Shop...Hollywood. We shall see what was wrong in a few days.
Boogie F-30
Mark V
Fender Hotrod Deluxe
Two 2X12 Vert. Cabs.
Two 2x12 Compact Cabs.
Telecasters, Gibson Les Paul, Gibson Howard Roberts Jazz Fusion and many more.
http://www.mp3unsigned.com/Peter_Savell

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tele_jas
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Re: Pop, snap, odd sounds then works fine.

Post by tele_jas » Thu Nov 03, 2016 5:13 pm

Mine did something similar, was some bad components in the power transformer.

Hope they get you fixed up soon!
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OldTelecasterMan
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Re: Pop, snap, odd sounds then works fine.

Post by OldTelecasterMan » Sat Nov 05, 2016 11:32 pm

It's fixed. It was ready in less than a week (it was fixed in two working days I just could not get there any earlier than a week.
Boogie F-30
Mark V
Fender Hotrod Deluxe
Two 2X12 Vert. Cabs.
Two 2x12 Compact Cabs.
Telecasters, Gibson Les Paul, Gibson Howard Roberts Jazz Fusion and many more.
http://www.mp3unsigned.com/Peter_Savell

twally
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Re: Pop, snap, odd sounds then works fine.

Post by twally » Sun Nov 06, 2016 5:45 pm

So, what was the problem? I'm sure we would all like to know.

Thanks,

TW

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OldTelecasterMan
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Re: Pop, snap, odd sounds then works fine.

Post by OldTelecasterMan » Fri Nov 11, 2016 3:24 am

I was told the power tubes were the issue. It works fine now so I'm good. I am glad it was not a big deal as I push things on outside gigs. It sounds very nice when pushed with a crisp attack and beautiful sustain. I love the dynamics of the amp, how the attack stays sharp but has a nice texture with the volume backed off a bit. It is a very reactive amp.

I did a gig while the Mark V was in the shop. I used my Boogie F-30. It's a little work horse but I was backing off the bass and treble, cranking on the Mids and using the scoop switch for leads. It worked very well, surprising actually but.... it's no Mark V.

I have taken the Mark V to small gig's. Set it at 90watt, back off the channel volume...way off. Bring up the output for the room and it sings at low volume level.
Boogie F-30
Mark V
Fender Hotrod Deluxe
Two 2X12 Vert. Cabs.
Two 2x12 Compact Cabs.
Telecasters, Gibson Les Paul, Gibson Howard Roberts Jazz Fusion and many more.
http://www.mp3unsigned.com/Peter_Savell

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jb's 52
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Re: Pop, snap, odd sounds then works fine.

Post by jb's 52 » Fri Nov 11, 2016 2:32 pm

OldTelecasterMan wrote: I have taken the Mark V to small gig's. Set it at 90watt, back off the channel volume...way off. Bring up the output for the room and it sings at low volume level.
Hehe...I do the same.
I thought I would be using 10 or 50W for smaller venues but it never sat right for my ears.
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Dreamtheaterrules
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Re: Pop, snap, odd sounds then works fine.

Post by Dreamtheaterrules » Fri Nov 11, 2016 2:40 pm

Glad you got it worked out and it was nothing major.

So you're saying you take down each channel volume instead of the master, when playing lower volume gigs? Interesting. Before I got mine, I read so many people say to "keep the channel volumes up to around noon and turn down master for best tones" that this may be the one thing I haven't really experimented with yet on my V.

Anyway, glad it's up and kicking butt again!
Mesa Boogie Mark V, Mark V25, PRS Archon, PRS Custom 50

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OldTelecasterMan
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Re: Pop, snap, odd sounds then works fine.

Post by OldTelecasterMan » Fri Nov 11, 2016 2:59 pm

My opinion, my ears hear better tone with the output up, channel volume down. When I was test driving the amp at Mesa Boogie the guys that worked there basically set it up. They explained what they were doing and why. Straight from the guys at Boogie " While you are learning what sounds good to you, Start with the Output at 12 O'Clock and then adjust the channels."

I have gone from gig to gig, out door, indoor, small room, big room and never touched my channel volume in months maybe a year. I must admit in big rooms and outdoor gigs where I get the amp up around or over half, a couple of times I got up to about 2/3 on the output.... The amp really sings and I cannot discount the fact that I'm standing in front of it so there is of course much more guitar interaction. Making the Output tubes work gets the amp into a very nice place.
Boogie F-30
Mark V
Fender Hotrod Deluxe
Two 2X12 Vert. Cabs.
Two 2x12 Compact Cabs.
Telecasters, Gibson Les Paul, Gibson Howard Roberts Jazz Fusion and many more.
http://www.mp3unsigned.com/Peter_Savell

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Re: Pop, snap, odd sounds then works fine.

Post by Dreamtheaterrules » Mon Nov 14, 2016 12:17 am

Thanks for the tip. I'll try that.
Mesa Boogie Mark V, Mark V25, PRS Archon, PRS Custom 50

Nicklotsaguitars
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Re: Pop, snap, odd sounds then works fine.

Post by Nicklotsaguitars » Mon Nov 14, 2016 11:29 am

Makes sense, the amps biased cold. So upping the master would push the output valves a bit more. Keeping the channel volumes down stops the output section seeing as much of the pre-amp section as it could. So you still have loads of clear headroom. Sort of a hifi way of doing things.
some guitars and some amps

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OldTelecasterMan
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Re: Pop, snap, odd sounds then works fine.

Post by OldTelecasterMan » Tue Nov 15, 2016 10:55 am

My thought was in a channel you have a gain and a volume. Why would I want to overdrive into my power section? Running a bunch of signal into the power section made things really touchy when adjusting anything. Also that "Ice pick" that everybody speaks of is just gone.

Of course too much of a good thing is not good either. Running the amp output wide open is a No No also.
Boogie F-30
Mark V
Fender Hotrod Deluxe
Two 2X12 Vert. Cabs.
Two 2x12 Compact Cabs.
Telecasters, Gibson Les Paul, Gibson Howard Roberts Jazz Fusion and many more.
http://www.mp3unsigned.com/Peter_Savell

Nicklotsaguitars
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Re: Pop, snap, odd sounds then works fine.

Post by Nicklotsaguitars » Tue Nov 15, 2016 7:30 pm

Well there's still call for it. Vox for instance, the secret of that sound is there is absolutely no negative feedback going on. Winding up channel volumes and hitting the power section hard get's you a long way into that territory. What negative feedback does is take a portion of the signal to the power amp and feed it back into the pre-amp. As you turn the presence dial up, more negative feedback (NF)\

A few years back I modded my JVM(that I later gave away) to have a load of different Marshall amp types of presence control. From the NF loop. Plexi (most) 900, EVH, 800 and Vox type. As all those Marshall power sections are essentially the same. Bar the resistor on the NF loop.
Made for a very responsive amp.
some guitars and some amps

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Re: Pop, snap, odd sounds then works fine.

Post by Dreamtheaterrules » Wed Nov 16, 2016 12:20 am

I'm trying it. So far so good, but... as with the discussion about the loop on vs off... you have to VERY carefully balance the volume each way before you can really tell if one way is better than the other. If you don't get them EXACTLY the same, the louder way will almost always sound better. So far though, so good. It will take a while to A/B it each way and will all three channels. Noon on the channel volume and 10-ish on the Output, vs. Noon on the Output and 9-10 ish depending on channel, on the channel.

Anyone else already tried this both ways and settled on a "better" sounding way? I would have sworn that most of my reading prior to owning the V, said "channel volumes up around noon, then Output to taste." I realize we're off topic here...
Mesa Boogie Mark V, Mark V25, PRS Archon, PRS Custom 50

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