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Ampeg Micro VR issues poll with new video

If you own the Micro VR with TWO 210AV cabs do you:

  • Have zero issues with clipping or distortion.

    Votes: 47 32.2%

  • Experience the issues with clipping, distortion, or crackle.

    Votes: 30 20.5%

  • Have tried the head or cabs with other setups and they work fine.

    Votes: 23 15.8%

  • Have already swapped out gear with Ampeg for a fix and it didn't fix the issue.

    Votes: 8 5.5%

  • I have Micro Carrots

    Votes: 52 35.6%
  • Total voters
    146
fenderhutz

fenderhutz

Jan 28, 2007
11,988
177
Harpers Ferry WV
open.spotify.com
#1
UPDATED WITH VIDEO OF THE ISSUE - YouTube - ‪Ampegissues.MOV‬‏

SECOND UPDATE 6/29/2011
Well I finally got a response from Ampeg and I am going to break it down instead of just posting the response.

They read the forum. Saw my video. Now they can and have reproduced the issue but apparently it took a couple players with different styles and a couple different basses for them to replicate it.

Their answer? The sent my head I shipped back to the engineer that designed to pinpoint the issue now that they can "hear" what it's doing. This is the same set of engineers that denied early on there was no issue. Now they are looking for a fix from the engineer.

Still too early to say design flaw?

Oh. I have no answer WHEN I will have a fully working setup. Just it will take time to pinpoint.

I would highly recommend to at least call if you have had the issue so when/if they redesign something for a fix you at least get a "fixed" amp (or whatever they decide the issue really is).
Click to expand...

Update 7/5/2011

Update:

I just got a message from Ampeg support. My modded head is being sent back to me for "testing". I will update with results when I get it. Maybe a new video when I get it :D

UPDATE 7/15/2011

Modded amp seems to work without the snap and crackle. Putting it thorugh the test tonight at a gig.

ORIGINAL THREAD POST

This is question I want to ask because Ampeg is stating they can't replicate the issue many TB'ers are having in the thread below with distortion and crackling coming from this setup: THIS POLL CAN HAVE MULTIPLE RESPONSES.

Here is my thread on this.

http://www.talkbass.com/forum/f15/problem-ampeg-micro-vr-2-av210-cabs-766548/

In the set of questions I will provide for those that own the setup I need to know if you are experiencing the distortion/cut out/cracking.

The settings I am using for this are as follows with a passive Fender Jazz bass.

Gain 12:30 Low 1:30-2 Mid 11:30 Treble 11:30-12 Master 12:30-1 with the -15 not engaged and the limiter on.

I am just curious if it's a few TB'ers on here or the majority of the people that own the setup.

Again this ONLY happens with this head and both cabs, the cabs are fine with another head and the head is fine on any other cab.
 
#4
Fenderhutz, I use a Micro VR with two of the 210 cabinets, and ironically I also use almost the exact amp settings as you. My master may actually be a bit higher, and I don't have the limiter on. Never had a problem with clipping or buzzing, and I'm using G&L basses through it. Hmmm...
 
#5
I have this very set up and too use similar settings to you, limiter off though, I have noticed some curious clipping sounds, I will investigate this further and then vote, one other thing I have noticed is that with two cabs the gain light will flash sooner than with one cab.
 
#7
I don't have two AV cabs, but I have run mine with two cabs without issue. Though I typically only run a 2x15 when using this head. I run the gain around 2-3 o'clock, bass around 2-3, mids 1-2, treble at noon (all adjusted to situational levels), with the master at a room appropriate level.
 
#9
Okay, I just played around with both of my Micro-VR's and all four SVT-210AV's. If I have both the Gain and the Master up to about 1 o'clock, with a hot bass (MTD, in this case) I could get it to clip/crackle. This was consistent with both heads, driving any two of the cabs. I must say, though, that while I might have hoped to get a tad more gain out of the head, this was pretty darned loud (and certainly a good bit louder than I could get driving just one of the cabs). Still, I did experience what y'all have been talking about.

For kicks, I tried the double SVT-210AV stack with my LMII, a 7Pro, and a PF500 (just came in today!), and you could definitely drive the cabs harder with those heads, so I do feel like it's the Micro-VR that is the source of the clipping/crackle. Please note, however, that all of those heads are at least twice as powerful (rated power) as the Micro-VR. I then used one of the Micro-VR's to drive two Bergantino AE112's. First off, that was a pretty darned nice combination! It really lets you see how much high end that Micro-VR has on tap. These cabs are more efficient, as well, and the overall volume was definitely greater, even with the same Gain/Master settings. I could push the Micro-VR a little harder into the Bergs, but only a little more, and then I started to hear some clippy/peaky kind of sounds (not as bad as what I heard with the SVT-210AV's, but something reminiscent of the head hitting the rails).

So, there's my two cents... :cool:

Tom.
 
#12
It was my experience while I had the head and two cabs that the head could be pushed into clip, yes.
It's solid state, and doesn't clip prettily.
However, with the two cabs, it was plenty loud for most anything I did with it.

I do believe it's the head, cause I tried the two cabs with both MB F1 and Walkabout, and didn't get that same clippy result.
 
#13
Chef said:
It was my experience while I had the head and two cabs that the head could be pushed into clip, yes.
It's solid state, and doesn't clip prettily.
However, with the two cabs, it was plenty loud for most anything I did with it.

I do believe it's the head, cause I tried the two cabs with both MB F1 and Walkabout, and didn't get that same clippy result.
Click to expand...

If that is the case my next step if this thing clips and crackles is to ask for a PF350 since they are the same price and other TB'ers haven't had the issue with that head.

It's weird though because I can used that head to power other things at a 4 ohm load cranked it works fine.

I think Bill F. was on to something when he mentioned the sealed cabs and the Q with a solid state head.

I will find out tonight.
 
#14
fenderhutz said:
If that is the case my next step if this thing clips and crackles is to ask for a PF350 since they are the same price and other TB'ers haven't had the issue with that head.

It's weird though because I can used that head to power other things at a 4 ohm load cranked it works fine.

I think Bill F. was on to something when he mentioned the sealed cabs and the Q with a solid state head.

I will find out tonight.
Click to expand...

Yes, I do think that the impedance curve and nominal load has a lot to do with this.
 
#19
GaryLC said:
I feel bad, Fender! I haven't had any problems with mine yet, but I feel like selling it just because of your issues!
Click to expand...

Well I wouldn't jump there. I made a request to Ampeg to swap this out for something else in the ballpark of what I paid for these since I am having these issues. Their support really does care and it's not their fault if it is truly a design issue and then a manufacturing issue with the new head.

They said they wanted to "try" out the setup I just sent them back before deciding what to do. Luckily this is is an off weekend for gigs.

Honestly I asked to swap out both cabs and the head for a PF500 and the 115 Portaflex cab, I would be taking a 100 dollar hit in my pocket for the swap but "hopefully" I could use an amp I can turn the volume up past 12:30-1 o'clock before it starts killing it.

I had some issues with Ampeg in the past over a SVT 3 Pro when they were US made and after my fourth one broke I swore I would never go back. Then I tried out the Micro VR. It is the tone I crave. If I can't get a working setup I will probably walk away again.
 
#20
The Micro VR has been a very solid head for me over the past 6 months, and all amps can break, so I don't think I'd be ditching one on the basis that Hutz had a problem with his out of the box. I do have this problem Hutz is having when I use two 210av's with it, but honestly, it works so well for my needs with just one cab that I'm having a hard time getting too worked up about it, although I certainly don't blame anyone else for doing so.
 

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