2. cables
  3. 178272-174898

Duelund 12AWG Biwire Amp runs hot

Hello all,

i have bought the Dueland 12AWG Cable to build a Biwire Speakercable by myself.At the amp end i crimp the cable with WBT Spades bevor i crimp the cables with insulated conductor sleeves. At the speakerside i crimp the cables (four for each speaker) with insulated conductor sleeves.The Sound is very good, but my amp is running much more hot than bevore.Bevore i use Harmaonic Tech Pro 9 plus speaker cable.Why does the amp runs so very hot with the Duelundcable?My amp ist an all Tube Design with 2x50 W.I change only the speakercable - nothing else.I am sorry abou my english.Thank you for reply.Kind regards Dirk

dirk777
lordmelton's avatar
lordmelton
877 posts
 

Lay one cable out on your table, using a multi- meter or continuity tester, attach a crocodile clip to the red amp side wire and then touch each of the speaker end wires.

You should only get a closed circuit on the red wires the blacks should be open circuit.

Repeat with the black amp side wire, the blacks should be closed and the reds open circuit.

Then check the other speaker cable exactly the same.

gs5556
1,234 posts
 

Don't run the amp with those cables anymore until you check the cables for continuity (this is the first thing you do with any cable, homemade or purchased). If you don't have continuity on one or both cables, the tube amp cannot see the speaker load and things will run hot, tubes and output transformers. 

dirk777 OP
3 posts
 

Thank you all for your thoughts and answers, i will order a multimeter - but i think will look for other speakercables.

More to discover