Started 4 years ago by bern
Topic Rating:
Do any other VT50 owners experience the same problem as me?
If I switch from a clean preset to a more distorted preset the volume jumps to a loud level for a brief time, about a second, then drops back down to the level of the preset. It's worse if the distortion preset has more gain dialled in.
I love the amp but it makes it almost unusable live when switching presets.
Anyone at Vox R&D know about this bug?
Thanks in advance
Posted 4 years ago
I didn't notice any such problem with my loan VT30. It's possible there's a software file-path corruption in your amp. Have you tried an amp reset back to factory settings - if there is a software glitch, a 'reboot' will usually solve the problem.
If not, your amp is still under warranty so I would take it back to the store you purchased it from, and try another VT50. Assuming that another amp is OK, ask the store to change your amp.
If you find the same problem, then I would refer to the Vox customer service team for a resolution.
Rich
Posted 4 years ago
have the same problem with my new VT50. I seems to be a design defect or software bug, if you change amp models it also produces a huge momentary volume surge. I can't believe they did not notice this during product testing, it did not happen on my prior AD30-VT at all. I am tempted now to take back the amp as this is unusable as a stage amp and defeats the purpose of the footswitch being able to switch on the fly (when you get an annoying volume spike).
Does ANYONE know how to fix this? Is there a software bug fix ?? What about the VOX R&D section should I post there
Posted 4 years ago
I did a factory reset and the volume glitch is still there.
I found another thread here on these forums which highlights the same problem.
Anyone from Vox here have any comments.
If I go through the hassle of swapping it I'm sure the problem will not disappear as reported by a few other VT50 owners.
Posted 4 years ago
I also did a factory reset and it made no difference to the problem. OK -- can any VT30 or VT50 owners say whether they DON'T have this problem i.e. momentary volume spike when switching channels / amp models (esp on high gain amp models) ? My local dealer who sold it to me just says "bring it back for a refund" they have no idea.
Mr. Moderator can you funnel the question into VOX support/ R&D ? This is such a massive bug for anyone performing with these amps it is sure to kill their business unless there is a fix to this.
Posted 4 years ago
Hi canvox - reported problem noted, & I've asked Vox if they can look into this and respond.
Best
Rich
Posted 4 years ago
Hi Rich Mr. Moderator VOXMAN (whatever you answer to happily) -- any word from VOX R&D on this ... ?
Posted 4 years ago
lol! Nothing yet - I think the Vox guys are at Frankfurt this week.
Rich
Posted 4 years ago
Voxman,
Have you heard anything back from the Vox R&D guys yet?
Posted 4 years ago
Gents, I just experienced this very problem last weekend, 1 day after I purchased my new VT50 from a major music store in the US. Said they "had never seen that before", then I told them of this post...not much reaction...I think they knew. Very disappointing, as I played this thing for nearly an hour in the store before laying down $400 for it. Oh well, they had one chance, and blew it. Exchanging for another would probably do nothing, so I'm off to find a new brand, probably Fender.
Posted 4 years ago
yup, ive got tht wi my vt30, i havnt got the footswitch yet tho, so i wondered if the same wud happen wi tht??? yikes tunedown, sorry to hear tht, but this is a big deal, i mean it wud completely ruin my show, im always switchin bck an forth between ac30 an mesa channels, both for dist an cleans, thts 4 channels nearly ruined cosve this, an its hard to perform with, im workin a way around it tho, more dynamic playin, bck an fourth an bck an fourth an bck an fourth wi the vol, dead annoyin
Posted 4 years ago
UPDATE
The Vox guys are now back from Frankfurt & catching up on stuff. This reported issue is now under investigation by the R&D guru's - it's too early for any comments from them just yet, but they will be back to us in due course once they've carried out all appropriate testing. In the meantime, some queries for you, to try & give them some further info....
1. If you set two patches at the same volume (eg AC30HH & UK 90's) how big are you finding the volume spike - is it 'there' but minor & not 'invasive' or is it genuinely a very noticeable problem.
2. Is there any difference whether the power selector is set high or low?
3. The VT50 has more headroom than the VT30 - is anyone able to comment whether the volume spikes are the same on both amps, or is it more pronounced with the VT50?
4. Are the spikes 'constant' regardless of amp models, or are there any amp switching combinations that are noticeably more problematic?
Rich
Posted 4 years ago
Glad this is finally getting looked at before my 30-day return window runs out. I have five days left know whether this problem will be fixed by VOX or a work-around identified.
Before commenting on your questions posed above, I have found the problem does NOT exist when using headphones, so it would seem to be the issue is downstream in the interaction between the modelling/preamp sections and the power amp section.
1. doesn't matter if 2 patches are saved at same volume, or switching manually between models using the controls is there and invasive ... the higher the gain on the model the more invasive. It pops above the band mix (drummer, bass, keys ...etc). Even on lower gain channels (e.g. switch between boutique clean and modded clean) there is a volume surge but not as intrusive.
The problem is extremely easy to replicate -- set the back-of-amp watts output at 50%, 3/4 on volume, gain and master and hit a D chord (or whatever) on AC30BM then while it is sounding, switch modelling dial to the right UK 80's and BAM volume surge for a quick moment then back to normal -- just long enough to be incredibly disruptive and annoying.
My serial number is in the 3,000's, the VT50 at my retailer is S/N around 1,500 and has the same problem on their floor model.
2. It still surges at full power watts (I normally have it about 60%) although not sure if it is a volumne surge or just increased distorition at that volume level it is so loud already
3. don't know
4. the volume spikes definitely vary depending which amps / models are being selected, some seem to have no spike at all, some moderate, and some massively annoying
I REALLY REALLY hope this gets fixed -- hard to believe they released a product with this kind of issue and otherwise it is a fantastic product but I can't live with it and it will go back to the store for refund on day #30 if not fixed and I will have to buy another brand ... I am sure that VOX will have the same problem with any customer using this amp to play live or in a band or recording situation.
Posted 4 years ago
well 1 an 2 first from me, im in the process as i wirte this of tryin out 4, dnt kno any one wi a vt50 so ill get bck to ya wi 3, her we go.
1. its definitly a big spike, well if theres more gain on one, i have ac30 for clean, then a lil gain on the cali metal, an tht is quite big noticable jump, not just wi the spike, but the whole vol in general, so i rolled the cali's vol dwn till they were the same then tried it again, the spike is jus as big.
2. nope.
4. ive only tried some so far the ac15's dnt seem too bad at all, the boutique clean an modded clean both spike, the tweed 2x12 spikes, an the super 4x10 does, so far.
'asta la vista, i'll be bck'
Posted 4 years ago
dang, i took 37 mins to write tht :(, lol, u explain alot more, cheers man
Posted 4 years ago
Thanks for the further info guys - I'll feed this back to Vox R&D.
Canvox - I'm afraid I just don't know how long it will take Vox to respond, or what they'll say, or whether any resolution might be possible - so unless the store is willing to extend its 30 day policy in the circumstances, I'm afraid you'll just have to make your best call as to which way to jump. :(
Rich
Posted 4 years ago
Wow, that truly blows my mind we don't know how long it will take VOX to respond ... you'd think after 1 month, multiple postings on multiple threads, and close to 20 customers reporting the same problem with their new flagship product line, they might be motivated just to have a look at the problem and come up with a reponse. This CUSTOMER forum is on VOX's own website -- Rich I know you are just the moderator -- but this is TRULY UNBELIEVABLE! Their dealers have no idea, their country distributor tech support has no idea -- and apparently now VOX R&D, after a month -- has no idea. My hopes have been dashed as rather than wait for a fix on this great product aside from this bone-head problem, I am now motivated to go buy another brand just on principle. As I said -- UNBELIEVABLE!
Posted 4 years ago
I understand your frustration but I know that Frankfurt is always a really big event for Vox and was a priority that takes a huge amount of preparation and hardwork. As I've mentioned on previous threads, although it's part of Korg, Vox itself is not a large company and so it doesn't have the extent of resource you might think. I know the R&D guys will do their very best to respond asap, but they may need to refer to colleagues in Japan where this section of the amp was designed.
Rich
Posted 4 years ago
You may have noticed post today, the VT15 has the same problem.
I can only assume that the people who have designed, produced and tested the product are also well aware of the problem, it is apparent in the first few minutes of use.
Posted 4 years ago
