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 Post subject: TA-30 reverb problem
PostPosted: Fri Apr 01, 2011 10:59 am 
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Mark II

Joined: Mon Dec 13, 2010 3:44 pm
Posts: 71
There are 2 or 3 threads where this topic has been discussed, so it seems as a good idea to regroup all this in one thread. It will be easier to follow the infos. Here's an update :

- New owners of the TA-30 (mainly heads I think, would like to know from combo owners) have reported a problem with the reverb circuit. There is a noise, hum/hiss, when the circuit is on and the noise increases when using the reverb control. Not a real problem when gigging at high volume but annoying when not playing loud or mainly, when the amp is miked.

- A change of tubes in V5 and/or V6 as been suggested. I did the changes but nothing changed.
- Here is Mesa's response which seems to implie that it's "normal". I've copied it from another thread in this forum :

"This is actually somewhat normal for the TA-30's. The higher the reverb
is turned up, the more hum you will hear. The heads will have a tad
more hum due to the proximity of the reverb tank right next to the
transformers in the amp. This is usually the same scenario for any of
our amps that have reverb. No matter what, once you turn the reverb
control up, you will normally hear more hum. Some amps are just more
noticeable than others.

For most guys that use moderate reverb settings in a live gigging
situation, it's usually never an issue. However, customers that use the
amp at lower volumes in there studio/bedroom and have the reverb cranked
all the way up will be the ones that hear this the most.

There is obviously always a chance that it's the reverb tube causing
more noise than it should in V5 or V6, or that something happened to the
reverb tank in transit.

If the customer has further concerns you can definitely have him contact
us directly in customer service. Then we can further diagnose the
symptom with him over the phone while he has the amp in front of him."

So that's about where we are on this. I sent this message to the technician at the store where I bought the amp and waiting to see if he can do something. I hope that everybody concerned whith this problem could post their infos here. Thanks in advance.


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 Post subject: Re: TA-30 reverb problem
PostPosted: Fri Apr 01, 2011 2:44 pm 
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Bottle Rocket

Joined: Tue Mar 22, 2011 6:53 am
Posts: 4
I'm also having a reverb/fx-loop circuit issue but with the 2x12 combo version. Everything works just as it should on Channel 1. However on Channel 2, when I engage the reverb/fx-loop switch I hear the humming hiss, to me it sounds like a ground loop or something; none of the knobs or mode and power switches have any effect the noise. Mesa sent me a tube to try in V5 & V6, I tried it yesterday and it made no difference.
I got this amp mainly for the Tweed mode so the noisy reverb on that channel is killing it for me..


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 Post subject: Re: TA-30 reverb problem
PostPosted: Fri Apr 01, 2011 3:31 pm 
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Mark II

Joined: Mon Dec 13, 2010 3:44 pm
Posts: 71
I should have added in my first post that I have the head and that the noise is much more annoying on channel 1.


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 Post subject: Re: TA-30 reverb problem
PostPosted: Sat Apr 02, 2011 4:59 pm 
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Mark II

Joined: Fri Feb 13, 2009 6:17 pm
Posts: 61
Location: Lincolnwood, IL
Already in communication with GB on this snag...

I came into the ownership of a TA-30 1-12" combo last week and have that same situation: there is an audible anomaly (if you can call it that) when those two mini-toggles are engaged. No section in the owner's manual (not that it should be too hard) on getting to those 12AX7's, nor advice so far on this forum besides going to V5/V6 on swapping. Or living with it as stated above in GB's statement which came out of a thread from Haggerty's Music w/ a statement from Mesa.

Everything else about this little critter is nice (I posted a review in HC as well), and it's easy on the back too.

Anybody else want to weigh in on this?

_________________
Mark V (head) - Stiletto Ace 212 - TA-30 112 - Mesa Thiele EVM Cab
Bogner Shiva EL-34 212 - Bob Burt 212 V-Cab - Bogner Cube
Quilter MicroPro - Yamaha DG-80 210
Zion Fifty - PRS C24 - Koll Spectraglide - Mando-12
Collings CJM


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 Post subject: Re: TA-30 reverb problem
PostPosted: Sun Apr 03, 2011 8:08 am 
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Mark II

Joined: Mon Dec 13, 2010 3:44 pm
Posts: 71
As for getting access to the 12AX7 for the head version, you have to unscrew the bottom of the amp.


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 Post subject: Re: TA-30 reverb problem
PostPosted: Mon Apr 04, 2011 12:40 pm 
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Mark II

Joined: Fri Feb 13, 2009 6:17 pm
Posts: 61
Location: Lincolnwood, IL
The combo has a slightly different design...but I spent last night with it face-down.
One noteworthy item: you have to go to the back of it to set the knobs/toggles.

_________________
Mark V (head) - Stiletto Ace 212 - TA-30 112 - Mesa Thiele EVM Cab
Bogner Shiva EL-34 212 - Bob Burt 212 V-Cab - Bogner Cube
Quilter MicroPro - Yamaha DG-80 210
Zion Fifty - PRS C24 - Koll Spectraglide - Mando-12
Collings CJM


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 Post subject: Re: TA-30 reverb problem
PostPosted: Fri Apr 15, 2011 11:43 am 
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Mark II

Joined: Mon Dec 13, 2010 3:44 pm
Posts: 71
I just received an e-mail from the "authorized Mesa tech" at the store where I bought the TA-30. The info from Mesa mentionned in my first post is correct. There does not seem to be anything they can do with this.


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 Post subject: Re: TA-30 reverb problem
PostPosted: Fri Apr 15, 2011 4:17 pm 
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Mark II

Joined: Fri Feb 13, 2009 6:17 pm
Posts: 61
Location: Lincolnwood, IL
GuyB wrote:
I just received an e-mail from the "authorized Mesa tech" at the store where I bought the TA-30. The info from Mesa mentionned in my first post is correct. There does not seem to be anything they can do with this.


Thanks Guy, and if we like everything else about it: we have to deal & live with it.

_________________
Mark V (head) - Stiletto Ace 212 - TA-30 112 - Mesa Thiele EVM Cab
Bogner Shiva EL-34 212 - Bob Burt 212 V-Cab - Bogner Cube
Quilter MicroPro - Yamaha DG-80 210
Zion Fifty - PRS C24 - Koll Spectraglide - Mando-12
Collings CJM


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 Post subject: Re: TA-30 reverb problem
PostPosted: Sat Apr 16, 2011 1:05 pm 
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Mark II

Joined: Mon Dec 13, 2010 3:44 pm
Posts: 71
You're right guitardr, I still like this TA-30 a lot. It's really a bummer that a 1600$ amp has a problem like that but, trying to deal with it, I think that the noise is really not annoying at gigging volume. I don't know yet what happens when the amp is miked. If the reverb noise is annoying I still have the possibility to add reverb at the console... well, I think I can live whith that, at least for a while. This beautiful and portable little amp still has a lot to offer.


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 Post subject: Re: TA-30 reverb problem
PostPosted: Sat Apr 16, 2011 1:46 pm 
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Mark II

Joined: Fri Feb 13, 2009 6:17 pm
Posts: 61
Location: Lincolnwood, IL
GuyB wrote:
You're right guitardr, I still like this TA-30 a lot. It's really a bummer that a 1600$ amp has a problem like that but, trying to deal with it, I think that the noise is really not annoying at gigging volume. I don't know yet what happens when the amp is miked. If the reverb noise is annoying I still have the possibility to add reverb at the console... well, I think I can live whith that, at least for a while. This beautiful and portable little amp still has a lot to offer.


1. Superb tone & volume to weight ratio!
2. I've used it 3X live and no problem with that little bit of white noise when the REV/FX switch is on.
Yes: it does have a lot to offer - maybe they'll have a solution down the line.
Back at you GB!

_________________
Mark V (head) - Stiletto Ace 212 - TA-30 112 - Mesa Thiele EVM Cab
Bogner Shiva EL-34 212 - Bob Burt 212 V-Cab - Bogner Cube
Quilter MicroPro - Yamaha DG-80 210
Zion Fifty - PRS C24 - Koll Spectraglide - Mando-12
Collings CJM


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 Post subject: Re: TA-30 reverb problem
PostPosted: Sun Apr 17, 2011 8:14 am 
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Mark II

Joined: Mon Dec 13, 2010 3:44 pm
Posts: 71
A jam yesterday night ; at this volume, really no problems with the reverb (btw, it's a very nice reverb).
I found myself sticking like glue to only 2 voicings instead of experimenting all the possibilities of this amp (it will come later !). With my Godin Passion RG3, I only used the TopBoost voicing on ch.1 and the H2 on ch.2, both on the 30W. The H2 with the gain pretty high (around 3:00) : incredible beautiful tones ! The H2 is "singing". In fact, I was so pleased with these tones that it's only while returning home that I realized that I forgot to try the gain boost on ch.2 :oops:


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 Post subject: Re: TA-30 reverb problem
PostPosted: Sun Apr 17, 2011 9:44 am 
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Mark II

Joined: Fri Feb 13, 2009 6:17 pm
Posts: 61
Location: Lincolnwood, IL
For clean stuff with no "edge": CH1 without top boost.
For superb AC30 jangle, a few more db's: click on that top boost.
For those singing leads/more definition: CH2, Master pulled, roll off the bass, HI1.
Want to add some of that Boogie "syrup"?: switch to HI2.
Adding some Line 6 POD HD400 or a Visual Sound (on jobbing dates) for mods/delay: done deal.

_________________
Mark V (head) - Stiletto Ace 212 - TA-30 112 - Mesa Thiele EVM Cab
Bogner Shiva EL-34 212 - Bob Burt 212 V-Cab - Bogner Cube
Quilter MicroPro - Yamaha DG-80 210
Zion Fifty - PRS C24 - Koll Spectraglide - Mando-12
Collings CJM


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 Post subject: Re: TA-30 reverb problem
PostPosted: Sun Apr 17, 2011 1:39 pm 
Offline
Mark II

Joined: Mon Dec 13, 2010 3:44 pm
Posts: 71
Yep ! You have them all but don't forget the Tweed voicing ! I did tried it the first day I had the amp : on the 40W setting with another one of my Godin wich has 2 humbuckers and a piezzo (the Flat Five X, the predecessor of the Montreal except that the Flat Five X is with flamed maple) I can get a pretty satisfying jazzy tone. Amazing little amp !


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 Post subject: Re: TA-30 reverb problem
PostPosted: Sun Apr 17, 2011 10:47 pm 
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Mark IV

Joined: Thu Dec 03, 2009 10:29 pm
Posts: 567
I just purchased a new 112 TA-30 today, and have been playing it for the past several hours. I haven't noticed any significant hum from either channel in any mode with or without the FX/Reverb switch engaged. There is some slight noise when I push the gain/volume, but really nothing that bothers me. It sounds like others have experienced way more noise than I have, but it is impossible to know without hearing what others are hearing.

I do wish the reverb was footswitchable with the included footswitch, but that is not a big deal for me because I usually set my reverb very low anyway. I also realize there is a reverb specific jack in the back where one could include a separate reverb on/off footswitch that would allow for toggling the reverb on/off. I will not opt for that for now.

Other than that I am completely BLOWN away with the fantastic sounds that are easily achievable through this amp!!

In my few hours with it so far.....I am particularly impressed with the awesome "rock tones" that I can achieve out of the top boost mode while following the settings from the manual on the first example setting on the second page. I opted to pull the cut knob (which is indicated as optional in this example setting) to act as a master volume to tame the beast! All that I can say about this sound is WOW!! :mrgreen:

I have spent a fair amount of time in all modes using all of the power selection options....and I am very pleased so far!! 8) This is an excellent sounding amp that is very easy to dial in great sounds in all modes.


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 Post subject: Re: TA-30 reverb problem
PostPosted: Mon Apr 18, 2011 8:31 am 
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Mark II

Joined: Mon Dec 13, 2010 3:44 pm
Posts: 71
Welcome to this happy crowd MBJunkie !


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