Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles Store Gallery Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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 22nd February 2011, 06:18 PM   #1
diyAudio Member
 
Join Date: Feb 2011
Smile NHT MA-1 Let the Smoke Out

Hi......fairly new to DIY so excuse the newbie-isms.

Have an early '90s NHT SW2 / MA-1 combination. Something in the MA-1 amp has let its smoke out, and it no longer performs (keeps blowing the input fuse). This all started with a thunderstorm and lightening strike. Afterward, the amp would turn on, but within a few seconds, it pops the main power fuse. Consequently, here are my options:
  • Trash the MA-1 and add an integral amp (plate?) to the SW2, converting it over to a powered sub.
  • Replace the MA-1 with a suitable substitute.
  • Have the MA-1 repaired (not sure where to have that done).
  • Repair the MA-1 myself (I have the capability but not sure if I have the time) by selectively replacing components (can get MA-1 schematic).
I think the most economical solution will be to either convert the SW2 to "self-powered" by adding an integral amp (besides, most systems nowadays require a powered sub) or repair the MA-1 myself. Does anyone have any good ideas/suggestions for an integrated amp for the SW2 (16 x 16 x 16 cube)? I have tried to get hold of Jack (Hidley) to see if he may have any leftover plate amps or MA-1 parts but have not been able to reach him. BTW, the MA-1 was an 80 Watt'er but the SW2 will handle 200W. I am looking for the most economical solution to be able to continue using this sub.

Thanks for your help!

Eric.
  Reply With Quote

Reply


Hide this!Advertise here!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
smoke came from transformer filipolaz Tubes / Valves 6 23rd August 2007 08:16 AM
T-amp up in smoke jwb009 Class D 21 4th April 2006 06:50 AM
I let the smoke out. TerryG Class D 16 8th November 2005 06:25 PM
Marantz MA 500 or MA 700 schematic krishu Solid State 0 15th March 2004 01:59 PM
Up in smoke... PhaseShift Solid State 2 3rd September 2002 05:03 PM


New To Site? Need Help?

All times are GMT. The time now is 11:41 AM.

Page generated in 0.11453 seconds (44.60% PHP - 55.40% MySQL) with 10 queries

Copyright ©1999-2012 diyAudio