Problem!!! - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 13th December 2003, 03:52 AM   #1
lpd is offline lpd  Canada
diyAudio Member
 
Join Date: Nov 2003
Location: BC
Default Problem!!!

Ok, not sure what component is the problem here, but I can't find it and things are looking sour!!! First off, I'm new to electonics so I am not the most experienced, but am open to ideas here. I have a Threshold S-150 amp, Sound Valves VTP-100 pre-amp, and a McIntosh MCD 7007 cd player. I recently pulled all components from the shelf and replaced with a new cab. Upon replacing them I noticed that the output on the stereo seems weaker, and the bass is "bloated", where before it seemed smoother and more output. I pulled all components, rechecked wiring, phasing, tubes in pre and alls well. I checked for dc on inputs of amp and sits at .025. I swapped cables problem still there. Any ideas on how to further test components to eliminate problem? I plugged in my cd player directly into amp (it has a variable output) and it still sounds weak. Any ideas what to check for here? If it is the amp, what would be a suspected part? I checked the fuses, rail, and output and all are fine. Any help is appreciated.

Thanks

Peter
  Reply With Quote
Old 13th December 2003, 10:13 AM   #2
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Sofia
It's difficult to figure from your description what is the magnitude of the the change. Have you considered the effect of simply changing your support from a shelf to a cab? This may be pretty dramatic, no matter what the scope-heads think. Can you not get back to the shelf and compare?
  Reply With Quote
Old 13th December 2003, 10:48 AM   #3
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
Just for testing try swapping one speaker's wires (+/- -> -/+)and see what you get.

/Hugo
  Reply With Quote
Old 13th December 2003, 04:30 PM   #4
lpd is offline lpd  Canada
diyAudio Member
 
Join Date: Nov 2003
Location: BC
i tried swapping speaker cables +/- and i put the original shelf back, although my wife moved the couch from the listening position to a side wall and put a chair where mt listening position was. could this effect my stereo that much?
  Reply With Quote
Old 13th December 2003, 05:56 PM   #5
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
I would try to reconstruct the original setup and placement of things as much as possible and still keep your wife happy.

Last year we bought new mattresses for our bed.
When taking the old mattresses out of the room the acoustic was totally changed. It sounded like an empty room.

Remember, the WAF is extremely important

/Hugo
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
mtx amp problem [[help!!]] fuzzypinkhat45 Car Audio 3 8th July 2008 05:34 AM
CDM 2/29 Problem HELP! Bassivus Digital Source 29 23rd December 2007 10:00 AM
FRD/ZMA Problem Twisted85 Multi-Way 5 4th December 2006 01:19 PM
p3a problem MaXiZ Solid State 17 16th July 2005 07:14 AM


New To Site? Need Help?

All times are GMT. The time now is 11:02 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2