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BVV3000 INFINIUM Trial

#83
While I'd hate to see them chased off it is disappointing that the level of their technical expertise isn't up to what we see from the other manufacturer's reps that hang out here. These smell an awful lot like marketing droids to me :( . Hopefully Uli will hang around long enough to see our point on this. "Fuse caused failures" sure got me ROTFLMAO, probably not what Uli wants from his people's efforts, no?
 
#84
Chef said:
Having spent literally decades touring with Ampeg, Fender, and Music Man tube amps, and having never experienced a tube related amp failure,
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But that was back when dinosaurs roamed the earth ;) and tubes weren't made out of recycled pickle jars and beer cans :dead: . The big thing nowadays seems to be tubes arcing and taking out their screen resistors - notice the Behringer dude didn't answer my question about testing their tubes for voltage tolerance. As many of you know a tube's plate voltage reaches at least 2x the B+ supply as the push-pull action happens. I don't have the schematic for the BVV3000 but do have the one for the 1960 (non-"Infinium") and don't see clamp diodes on the plates/output transformer - anybody know any good reason not to have them on a modern amp designed to use mediocre tubes? They help prevent the tubes and output transformer from seeing more than the 2x voltage thence arcing :( .
 
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#86
Hey. I got an answer when asking about the watts rating on their new cabs without a commercial. It was passed off to the Acoustic Engineer so hopefully he reads the rules on Commercial users.

Dear S-Bigbottom,

thank you for your question.

I will ask our head of Acoustic Engineering to answer this question. Andrew Pardoe is heading Turbosound engineering, whose drivers have been used in these cabinets.

However, Chinese New Year has just started, and hence I kindly ask you for some patience.

Warm regards

Uli
 
#89
Dear All,
Tube Testing.

Tube Testing.

Tube Testing.

Tube Testing.

Picture 1 - F15.JPG
Picture 2 - Infinium (3).JPG


Based on the information provided by the OP, we suspect the "Screen" fuse (Board Designator: F15) is the culprit. This failure is normally caused by a catastrophic fault with a vacuum tube.

The fuse is designed to protect the "Screen" resistors.



The fuse in question is relatively easy to swap out (see Picture 1 - F15).


However we strongly advise that the fuse replacement is performed by a factory authorized service center to avoid possible electrocution or any further damage to the unit. The unit carries voltages up to 700 Volts which can we lethal.


Also, as requested by a user, we (physically) removed a vacuum tube with the amplifier powered up. As expected, the corresponding Infinium light came on (see Picture 2 - Infinium), the fuse remained intact, and the amplifier kept operating.


Not all tube failures are the same. The dielectric strength of air is significantly (i.e., orders of magnitude) lower than that of a vacuum. A failed tube (where the vacuum is compromised) could cause arcing, which would trigger the fuse to blow in order to protect the rest of the circuit.


I hope this clarifies the issue.

Bart BOLTON
Manager, CARE
MUSIC Group
[email protected]
1-702-800-8290 extension 5771
 
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#92
B-string said:
We have several CEOs and engineers post here who are also very busy and answer succinctly without cut and pasting from prepared responses.
Jeff Gensler, rag, Larry Hartke, agedhorse, BbbyBld, Hasbeen, Bob Lee, Jerrold Tiers as examples. :)
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+100
He is not any better than other CEOs that take the time to talk to us. They are just people that happen to run a business. There are CEOs, even of large company's that still answer the phone when you call and will talk to you as a friend to get you setup with what you need. For ether a purchase, a question on how something is rated, or if you need help with their products. That is how it should be. They are not untouchable men. They are just men. We all use the toilet.
 
#96
Saranac said:
Thanks for following up, Bart. I guess my main question in reply is why, when the amp had gone into fault mode, the Infinium lights indicated that all the tubes were functioning properly. Thanks.
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Hi Saranac, there could be a myriad of reasons why the Infinium lights did not indicate a problem. Unfortunately not having your head on our bench, it is extremely difficult to ascertain what the exact problem is. We are waiting for Zzounds to contact us regarding an RA for your head. Once we get it here in our facility, we will be able to take a deeper dive. I will keep you all posted.

Thanks, BB

Bart BOLTON
Manager, CARE
MUSIC Group
[email protected]
1-702-800-8290 extension 5771
 
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#98
Bart Bolton said:
Based on the information provided by the OP, we suspect the "Screen" fuse (Board Designator: F15) is the culprit. This failure is normally caused by a catastrophic fault with a vacuum tube. The fuse is designed to protect the "Screen" resistors.
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Interesting - most amps just use flameproof screen resistors so there is essentially one fuse per tube vs a single fuse that takes them all down. Theoretically you can just pull the bad tube (and possibly its pairmate) and be back going at reduced power. Having a single fuse obviously doesn't allow that but in reality I don't know how often that actually works so being able to just pop in a new fuse vs replacing a soldered-in resistor is definitely and interesting idea :) .

In any case thanks for the update - pretty much what I guessed in a previous post. Maybe someday Behringer will be in a postion to make their own tubes - the quality of those made today is pretty poor :( .
 
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#99
Dear All,

I just wanted to post a quick update. We are still attempting to locate the BVV3000 in question. We reached out to ZZounds again today to follow up and was informed because they do not track serial numbers that they cannot find this specific unit quickly. We have escalated this to their warehouse team supervisor. I will keep everyone posted once we hear back next week. Thank you!
 
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#100
Bart Bolton said:
Dear All, I just wanted to post a quick update. We are still attempting to locate the BVV3000 in question. We reached out to ZZounds again today to follow up and was informed because they do not track serial numbers that they cannot find this specific unit quickly. We have escalated this to their warehouse team supervisor. I will keep everyone posted once we hear back next week. Thank you!
Click to expand...
So, when are yous guys coming out with a V4B clone? :D
 

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