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Ampeg SVT 7 Pro - Cutting out ???

It has a lot to do with my *sigh* time working at GC. Still, from that experience (about 3 years), I saw way more defunct SVT's come back, than GK. Ampeg gave me a really bad vibe after that.
Let me guess...you worked there in 2007-08. Bad years for Ampeg for sure. That period did leave a bad taste in folks' mouths, including mine. But they fired the former head idiot of LOUD in late 2008, moved out of the crap Vietnam factory, and QC got quite a bit better.

And to address your other comment, yes, the Heritage SVT does rule hard, especially the cabs, which IMHO are the best cabs Ampeg's ever released. Early 70's 810 tone with modern power handling...count me in!
 
Hey! I am currently looking into getting this head, and I am prepared to run it at 8ohms (for 600 watts) as opposed to the 1000watts at 4 ohms, because my 410Hlf cabinet has a max wattage of 1000w. Just don't exceed your cabinet's limit and you should be fine. I am no expert, however. I am just aware of what too much current through low resistance can do.
 
Do you have the SVT 410hlf or the PF410hlf? You can't run your SVT 410hlf at 8 ohms unless you change the speakers, at which point it's no longer an SVT 410hlf. But the PF410hlf does run at 8 ohms.

I have not attempted to run my new 7 Pro at 4 ohms yet, save for a brief at-home experiment, but it's two weeks now and still running like a top ;)
 
Do you have the SVT 410hlf or the PF410hlf? You can't run your SVT 410hlf at 8 ohms unless you change the speakers, at which point it's no longer an SVT 410hlf. But the PF410hlf does run at 8 ohms.

I have not attempted to run my new 7 Pro at 4 ohms yet, save for a brief at-home experiment, but it's two weeks now and still running like a top ;)
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Ah, I see. I have the SVT 410hlf. So in other words it may be unrealistic for me to get a the svt7pro since it puts out 1000 watts at 4ohms. Since the peak handling of the cabinet s also 1000watts, that's pretty much a set of blown speakers waiting to happen. (I hit the strings very hard)
If I got another cabinet (maybe a portaflex 2x10), would this help my case? I am thinking that it would considering the current (proportional to power for constant voltage) will be spread amongst the cabinets, based on their resistance.
 
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Ah, I see. I have the SVT 410hlf. So in other words it may be unrealistic for me to get a the svt7pro since it puts out 1000 watts at 4ohms. Since the peak handling of the cabinet s also 1000watts, that's pretty much a set of blown speakers waiting to happen. (I hit the strings very hard)
If I got another cabinet (maybe a portaflex 2x10), would this help my case? I am thinking that it would considering the current (proportional to power for constant voltage) will be spread amongst the cabinets, based on their resistance.
I've run the 7 Pro into a pair of SVT 210av's with a combined total power handling of 400w before and had no problems. I think the lightweight amps with buttloads of headroom sound better than amps without it. However, as you insinuated, you have to run them smart, and if you have an itchy volume knob finger, not the move. Still, with a 410hlf, you're going to be insanely loud before that happens.
 
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I've run the 7 Pro into a pair of SVT 210av's with a combined total power handling of 400w before and had no problems. I think the lightweight amps with buttloads of headroom sound better than amps without it. However, as you insinuated, you have to run them smart, and if you have an itchy volume knob finger, not the move. Still, with a 410hlf, you're going to be insanely loud before that happens.

I understand. I do not think I will have to go above half volume with 1000 watts of power, even considering the fact I play death metal. I overlooked the volume variable. Doe. Thanks for your help! - Kyle
 
So unfortunately, my 7pro started cutting out a few weeks ago at a gig midway thru our 2nd set. It was a particularly warm night and the stage lights didn't help.

I saw the power light turn off(no sound) and back on(sound returns) a few seconds after, every few minutes. This went on for the remaining 1.5 sets. Not sure if it was due to the heat(amp didn't feel hot and internal fan was working) or dodgy power. All i know is that it was pretty annoying.

Luckily the desk was fed the signal from my VT Bass DI(i run this paralleled to my stage rig with my effects for the cab sim and as a precaution in case my rig blows up) and FOH was not affected by the cut outs.

I bought it used and it was previously repaired under warranty for cut out issues. Board is Rev.F. Running at 230V if that matters. I had never experienced any issues prior to this but my confidence is shaken. I love the way it sounds... if anything it's the best sounding to me but i'm gonna go pre/power amp route since i rack my gear.

Not trying to put anyone off the 7pro. They sound fantastic and i love almost everything about it. Just narrating my recent experience.
 
heres the best part about all of this,
i called ampeg CS about my 3rd 7 pro that cut out and they acted like it was the first they had heard of this! as if no one else in the world was having this problem!!

it does sound great! but man, get it together!
 
I've had a Rev. C 7PRO for four years now and never had an issue with it until a few weeks ago when it started cutting out while practicing at home.
If I have this right, there is still one year left on the electronics warranty. So, I'll be dropping it off at an authorized service provider and cross my fingers.
I love this head and hope they can resolve the problem.

Can anyone who has experienced this tell me if this is resolvable or do I need to start shopping for a new head? Thanks.
 
My rev. C shut down on me, and Ampeg replaced the board, through my local authorized shop. It did take a while, mostly because my local shop took weeks to even get it to Ampeg. In the meantime I played a GB streamliner, which also had a minor glitch (the lights kept going out, but no loss of power). I grew to really like the GB, but when my svt7pro returned, it booted that streamliner right out of the rotation. That svt tone is what I want to hear. I am very satisfied with Ampeg's service, and it has been trouble free for about 2 years since. I think it sounds better with the new board as well.
 
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Unfortunately, thats why I cant use mine anymore. I got mine used from guitar center, I chose to not get the 1 year warranty. I figured "bass amps last years and years without issue" I dont need an extended warranty. Tone was great with my 410hlf and charvel bass. About 6 months into it it started cutting out, I made a few adjustments and it got better and some time passed. 9 months into it it happened again, so I took it to a highly regarded shop here in louisville. They said it needed a board, because they use the disposable, unrepairable boards to save money. It was gonna be $450 or so to fix it, as much as I paid for it. Had I spent the extra $40 and got the warranty, I would have a brand new one. Instead I'll never own another ampeg head, with the exception of a vintage svt. At least I was able to trade it for a samson power amp and an eq. thats my setup from here on out. It was a rev c00 btw
 
I think it's time we do away with the myth that PCB's with surface mounted components are unrepairable at component level. They've got specialized tools just for surface mount PCB's, and they're as repairable as any as long as the tech has the tools and is willing to invest a little time into learning how to use them.
 
I think it's time we do away with the myth that PCB's with surface mounted components are unrepairable at component level. They've got specialized tools just for surface mount PCB's, and they're as repairable as any as long as the tech has the tools and is willing to invest a little time into learning how to use them.

Yep at almost 60 I bought this
21-10130.jpg

Just under $100 (on sale) and have been doing repairs to those "un-repairable" boards. If a grumpy old fart can, a grumpy young fart can.
 
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So after my 7Pro (RevC) has been sitting for months because it cuts out and Loud won't do anything about it, I have decided I may pay to have it fixed. Great amp when it works. So can anyone fill me in on about how much the fix is and ,also, if it seems to last? Would like to know the latest and I haven't been keeping up, just playing. Thanks for the help!!
 
You would have to get it looked at to make that determination.
Thanks for the reply and I know they would need to see it to quote a price, but thought with all the cutting out issues there would be some sort problem that was identified as the issue and enough people have had it fixed to have a ball park $. If it's a hit and miss fix, all different issues with the failures, I wouldn't pay much for a repair.
Thanks
 
I've had a Rev. C 7PRO for four years now and never had an issue with it until a few weeks ago when it started cutting out while practicing at home.
If I have this right, there is still one year left on the electronics warranty. So, I'll be dropping it off at an authorized service provider and cross my fingers.
I love this head and hope they can resolve the problem.

Can anyone who has experienced this tell me if this is resolvable or do I need to start shopping for a new head? Thanks.
Better warranty then I had. Mine is just over 3 years old, bought a 2 year ext coverage thru GC and it had expired about a month after it started cutting out. Loud did nothing for me other then tell where I can go pay to have it fixed. Crappy CS in my opinion, especially with this amp and all the failures. Great amp when it works tho. Where did the 5 year on electronics come into play at? Far cry from my experience with them.
 

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