Microcab 1 white noise ? - Jemsite
Gear, Equipment, Recording & Off Topic Gear, Equipment, and Recording discussed here. Amps, pedals, whatever.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 10-22-2009, 08:07 PM Thread Starter
 
Join Date: May 2008
Location: Ireland / UK
Posts: 293
Angry Microcab 1 white noise ?

Hey dudes


So ive been using my microcab for a few weeks now , but i notice once its been on for 30 mins or so , sometimes longer, it starts to make this grym sound , like an electronic wind blowing , and it gradually gets louder and louder , until you cant record anymore , and have to leave the unit off for a while.

There is no set amount of time you have to leave it off, sometimes it works fine after 2 mins , other time you can plug it in 2 hours later and its still at the same point in its noiseyness - it is REALLY pissing me off, ruining good recording sessions and inspirational moments.

Its def the microcab as i have isolated it by removing 1 piece of my setup at a time.

Im about to open it and have a look - any ideas here dudes ?
Shredragrammaton is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 10-22-2009, 08:11 PM Thread Starter
 
Join Date: May 2008
Location: Ireland / UK
Posts: 293
Re: Microcab 1 white noise ?

Just opened it, very surprised - not 1 spec of dust inside, absolutely mint like its brand new - WHERE IS THE NOISE COMING FROM !!!
Shredragrammaton is offline  
post #3 of 6 (permalink) Old 10-22-2009, 08:50 PM
 
Join Date: Mar 2006
Location: Urbana, IL
Posts: 1,676
Reviews: 1
Re: Microcab 1 white noise ?

Whatever the problem is, it's thermal in nature. When you leave it on for X time, it gets hot and one of the parts is drifting out of spec. I had a similar problem with an MP-1. The hotter it got (over time), the less gain it had.

Sorry I can't be any more specific but I would go to the ADA Depot boards for more help.
toneboy is offline  
post #4 of 6 (permalink) Old 10-22-2009, 09:20 PM Thread Starter
 
Join Date: May 2008
Location: Ireland / UK
Posts: 293
Re: Microcab 1 white noise ?

Ok so i mightve made an error , plugged everythign in seperately again


ITS MY ADA 3TM making the noise


-Even when i turn the 3tms main volume knob on the front right down , it STILL makes this horrible noise.
-I switched tubes there now , and it made no difference .
-I also run it through a ISP decimator which kills any noise, but not this one - ive even tried decimator AND tc gmajor noisegate and they dont effect the sound atall.
- I just switch OFF the ada mp1 3tm and its still making the noise !
never did this before


I have recorded it in mp3 form , firstly with the ada turned off , then i turn it on and gradually turn up the master vol knob whilst strumming , then fade it out again , you can hear the sound remain constant You might hear a -slight- hiss when the volumes right up but that is easily killed by the isp , its just this other sound thats causing the bother.

I can email any of yous the mp3.
Shredragrammaton is offline  
post #5 of 6 (permalink) Old 10-22-2009, 09:21 PM Thread Starter
 
Join Date: May 2008
Location: Ireland / UK
Posts: 293
Re: Microcab 1 white noise ?

Posted this on ada boards too ,but thought id do it here too, for max help lol
Shredragrammaton is offline  
post #6 of 6 (permalink) Old 10-22-2009, 10:00 PM
 
Join Date: Mar 2006
Location: Urbana, IL
Posts: 1,676
Reviews: 1
Re: Microcab 1 white noise ?

If the problem is with your 3TM MP-1 then it's probably the same problem mine had. It's a known issue with earlier revs of that mod and the fix is cheap and easy. I don't remember the specifics but one of the diodes needs to be replaced. The part itself is very inexpensive (less than $1).
toneboy is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Jemsite forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address

IMPORTANT: You will be required to activate your account so please ensure that your email address is correct.

If you do not receive your activation check your spam folder before using the CONTACT US form (at the bottom right of each page).



Email Address:
OR

Log-in











Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: ADA MicroCab I GuitarEvan07 Classified Ads: Guitars and Gear 2 09-15-2009 11:09 AM
FS: (3) ADA Microcab 1s $75 each. toneboy Classified Ads: Guitars and Gear 3 06-25-2009 07:57 PM
nasty noise from prestige rg (that high fret warbling noise that you DONT want) superhairycamel Tech: Setup, Repairs and Mods 10 07-04-2008 08:00 AM
FS: ADA MicroCab II Near Mint finstah Classified Ads: Guitars and Gear 3 11-02-2007 02:02 PM
WTB ADA MicroCab I or MicroCab II toneboy Classified Ads: Guitars and Gear 2 06-28-2006 08:12 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome