Odd volume problems with Marshall VS102R - Jemsite
Gear, Equipment, Recording & Off Topic Gear, Equipment, and Recording discussed here. Amps, pedals, whatever.

 
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 08-21-2011, 12:42 PM Thread Starter
 
Join Date: Jul 2011
Location: Norfolk, UK
Posts: 412
Odd volume problems with Marshall VS102R

Well ive just taken the opportunity to turn up my amp slightly since no one was in the house for a couple of hours.

The amp is a Marshall Valvestate VS102R (100W 2x12 Combo), and ive owned it from new since roughly 2001/2002ish. Gigged a handful of times, but basically a bedroom amp.

I was playing through my Digitech RP-14D into the clean channel, with the volume on the amp turned up to somewhere around the 10 or 11 o'clock mark, so not pushing it at all!

after abt 10-15mins of playing the volume coming from the amp noticeably dropped, as did the clarity of the sound. It sounded almost like someone had walked past and knocked both the volume knob, and the tone knob on my guitar.

i continued to play, and the sound would change back and forth from how it should be, to the quieter muffled sound every 2 or 3 mins or so.

i have noticed the amp do this once before (i havent played much recently), and that time i was just plugged straight into the amp, using the clean and OD1+2 channels, and it was the same.

this leads me to believe that either its the amp or the guitar itself, so the Digitech pedal can be ruled out.

the amp only has 1xECC83 (12AX7) pre amp valve in it, which ive changed twice over the life of the amp so far. but ive never experienced this problem before.

anyone got any ideas as to what it could be or where to begin with diagnosis?

cheers

rich
rickybaby1985 is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 08-21-2011, 07:23 PM
 
Join Date: Feb 2011
Location: Tampa, FL
Posts: 1,245
Reviews: 2
Re: Odd volume problems with Marshall VS102R

It sounds like you have yet to isolate the trouble to the amp. What about the cords? There could be a minor resistive fault in one. In fact, I've had the trouble you described and it was a cord. You want to exclude the minor items before tearing onto the amp.
therightjem 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
Volume problems ster Tech: Setup, Repairs and Mods 2 04-19-2010 11:27 AM
EMG 85 volume problems JohnnyRG1527 Pickups & wiring 0 04-09-2008 07:20 PM
Volume problems with band... Shredder87 Gear, Equipment, Recording & Off Topic 2 06-29-2006 11:02 AM
“Marshall pb100” VS “volume pedal” plasticbaby Gear, Equipment, Recording & Off Topic 6 10-14-2002 04:35 AM
Volume Knob problems sixstringphoenix Tech: Setup, Repairs and Mods 4 09-03-2001 11:39 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