NAD, came DOA, need suggestions

[lomo]

Where's Linnin? He'll tell you the Rumble line cures the common cold and all else that ails you.

 

[Cowboy in Latvia]

I can't recommend the Rumble v3 series enough so getting a replacement for the one you ordered would be my first choice. YMMV

Or...

Do what I did and shark around for an old Peavey nitrobass head and some used homebrew cabs. My whole rig was $250 with the head and 2 112 cabs loaded with Madison Knight speakers. The sound is massive and versatile-ish (no tweeter or horn for either cab) the only drawback is the weight.

 

[Hounddog409]

I dunno I've read a lot of bad things about their speakers in the MB line. The only used one up for sale at the moment on eBay or Reverb (same listing) has a replaced speaker from it blowing. Their tweeters apparently don't last long at all

Only one for sale? Shouldn't that tell you something?

This is the exact opposite of 100 for sale with replaced speakers.

I have never heard this rumor that you speak of.

I would trust GK.

 

[Hounddog409]

You can blow any speaker with any amp with enough stupidity so don't let that make your decision. GK speakers are much higher quality than what you'll find in a Fender Rumble, and everything is higher quality that what you'll find in a Hartke. I'm just saying just because you see an amp with a blown speaker don't assume that everything they make is junk. You can probably find twice as many blown Hartke's and Fenders than you can GK's. In fact, you've already got a dead Fender on your hands it seems.

As far as tweeters...on a 'cheaper' cab I turn them off or disconnect them because they sound like thin, metallic, junk. So I can't really say how the GK tweeters hold up. I have them turned off in my big GK cabs, and my small GK cabs don't have tweeters at all. But again, if you can blow a GK tweeter you can just as easily blow any other tweeter.

This. Blown speakers are usually the result of stupidity, not a design flaw.

GK uses better quality speakers that the Rumble line

 

[Thumpin6string]

There are several combos made by Carvin out there pretty cheap. They are a great bang for the buck. Excellent quality and USA made. I just sold my 800 watt Carvin neo combo for $300. It was small, light and a beast.

 

[firstnamelast]

Only one for sale? Shouldn't that tell you something?

This is the exact opposite of 100 for sale with replaced speakers.

I have never heard this rumor that you speak of.

I would trust GK.

I guess you could say most of the amps I've been considering are "trendy" or "popular," not too many for sale at the moment all around.

This. Blown speakers are usually the result of stupidity, not a design flaw.

GK uses better quality speakers that the Rumble line

It makes me imagine that amps like the Hartke KB15 boast a 500w peak but 250w RMS for a reason. If it can peak at 500w on some transients I would imagine it could blow speakers that are underdesigned for the cheaper amp lines to cut costs. Or possibly they're referring to it's ability to peak at 500w if you change the load, I'm not sure. Either way I hope this is not the case

There are several combos made by Carvin out there pretty cheap. They are a great bang for the buck. Excellent quality and USA made. I just sold my 800 watt Carvin neo combo for $300. It was small, light and a beast.

I was checking out the newer MB line but their cabs are really tiny, and especially thin. I don't keep up with Carvin's ever-changing inventory, I'm not too knowledgeable with their stuff unfortunately. But I do like their products. I wish I was around for that deal lol

 

[BassmanPaul]

Those blown tweeters you mention could well just be the protection lamp has done it’s job.

Send the Rumble back and get a replacement.

 

[DavC]

a certain percentage of stuff fails = hence their warranty = return for exchange

if buying used or final sale ... those are usually bought ' as-is ' = buyer beware


it's just one of those things we all just ' deal with ' ...

 

[Thumpin6string]

I was checking out the newer MB line but their cabs are really tiny, and especially thin. I don't keep up with Carvin's ever-changing inventory, I'm not too knowledgeable with their stuff unfortunately. But I do like their products. I wish I was around for that deal lol

I haven't dealt with the newest amps from Carvin, but they have a pretty good track record. My current amp uses a Carvin cabinet and it is rock solid. I also have my Carvin PB200 advertised here on TB. It is not quite 200 watts, but a pretty loud 160 watts. It's a nice sounding combo. Cheap too. Here are pictures of my current amp (pic 1) and the PB200 (pic 2)

.

 

[firstnamelast]

Those blown tweeters you mention could well just be the protection lamp has done it’s job.

Send the Rumble back and get a replacement.

Is that a fuse??

a certain percentage of stuff fails = hence their warranty = return for exchange

if buying used or final sale ... those are usually bought ' as-is ' = buyer beware


it's just one of those things we all just ' deal with ' ...

I know I've had plenty of stuff fail on me. I just hate for it to be something relatively new and fail. It's a giant bummer. I deal with a lot of used gear, some things come broken out of the box some things never die on me. It's hit or miss of course

I haven't dealt with the newest amps from Carvin, but they have a pretty good track record. My current amp uses a Carvin cabinet and it is rock solid. I also have my Carvin PB200 advertised here on TB. It is not quite 200 watts, but a pretty loud 160 watts. It's a nice sounding combo. Cheap too. Here are pictures of my current amp (pic 1) and the PB200 (pic 2)View attachment 1161332 View attachment 1161333 .

I saw that one a bit ago actually when searching through the classifieds lol

 

[BassmanPaul]

A lamp usually from the Automobile field. It is supposed to blow if the signal being fed to the high range drivers gets large enough to cause damage. I have only ever blown one and that was when I used one of my three way cabinets as a PA. A microphone fed back, the cabinet lit up and then the lamp blew.

 

[firstnamelast]

A lamp usually from the Automobile field. It is supposed to blow if the signal being fed to the high range drivers gets large enough to cause damage. I have only ever blown one and that was when I used one of my three way cabinets as a PA. A microphone fed back, the cabinet lit up and then the lamp blew.

That's gotta be what we call a fuse lol it's the only thing I can think of. I have never been fortunate enough to have one work for me, as far as music gear goes

 

[BassmanPaul]

Lamps have differing characteristics than a plain fuse which is basically a piece of wire. As a lamp heats up it’s resistance changes. As the filament heats it’s resistance increases reducing the voltage fed to the high range drivers.

 

[firstnamelast]

So I pulled the trigger on a GK MB115, the next amp in line after the Rumble 200. Who knows the extra 60w may come in handy lol. Thanks everyone for your help

 

[firstnamelast]

Lamps have differing characteristics than a plain fuse which is basically a piece of wire. As a lamp heats up it’s resistance changes. As the filament heats it’s resistance increases reducing the voltage fed to the high range drivers.

Interesting I never knew that. I figured you might have a fancy word for fuse up in Canada haha

 

[S-Bigbottom]

Interesting I never knew that. I figured you might have a fancy word for fuse up in Canada haha

Watch this video starting at 2:48.

 

[firstnamelast]

Watch this video starting at 2:48.

Learn something new everyday I guess!

 

[BassmanPaul]

The video fails to mention that if you turn the high range drivers off the signal is still being developed across the Lpad. This can lead to premature failure of the control.

Personally I prefer that the lamp(s) be socketed. It makes replacement so much easier.

 

[GManfromOz]

"200 watts and enough headroom to not fart out" doing what? If you're playing in a rock band with two guitars and drums, you might need more than 200 watts in some situations. While I am an advocate for the V3 Rumble series, I have never heard of a problem with the GK speakers blowing or the Hartke kickbacks being unreliable. You are bound to get more scorn than suggestions without citing any sources. In short, I would send the Rumble back and replace it with the same. I've been gigging with the 500 head and 500 combo exclusively for the past two years. I've never had an issue unless you count being asked to turn down.

I had the little GK112 combo and it blew the wiring off the speaker twice in the 18 months I had it. The speaker didn't blow, just the little wires that connect to the cone. A cheap repair job but still a failure.

I went for the Rumble 500 (actually 350w without the extention cab) and no problemo. The Rumble 200 is only 140w without an extension cab, yes?Not enough to get over a full rock band, my ones anyway.

That said, I had a Rumble 100 that just stopped one night, no reason. Took it back for a replacement and no problems so far.

 

[okcrum]

Interesting I never knew that. I figured you might have a fancy word for fuse up in Canada haha

Yeah, the lamps are used to progressively limit the current through the driver, so they won't usually fail open unless hit with a large overload.

Fuses are made to fail open after a specified time with a specified current overload. A common spec is 1 sec at 200% overload.