2. amps-preamps
  3. 162688-4635

Need suggestions for balanced equipment to Combat noise/hum

Issue: Hum and Noise from long 20 ft RCA cables between preamp and amp. Current equipment is single ended preventing me from using balanced connections

Current system> Modwright LS100, Wells Audio Innamorata, Auralic Vega, etc

Temp solution is to relocate equipment rack and amp to a new (unpreferred) location in the room enabling me to use “short” 1.5m RCA between preamp and amp.

Long Term Solution: Move to a fully balanced system to lower hum/noise floor and allowing me to move equipment back to preferred location in the room.

Ask: Suggestions for truly balanced amp and preamp. Budget is 8K for both (preowned), split anyway you like 4/4 5/3 etc. I seem to lean towards a tube preamp and solid-state power amp and am wondering if I would be happy with a tube pre with class D mono blocks (think Bel Canto, Merrill, Benchmark). The tube pre should have low output impedance (transformer coupled?) able to drive 20 ft XLR cables. If there is a solid-state preamp that fits the bill, I am open to it. I did demo the JC2 in my system and although it sounded very good it was a bit thin sounding. (Note my tubes are NOS RCA’s).

The other loaded question is will I be happy with a Class D amp after living with the Wells.

Thanks for reading and any suggestions
jimbones

Showing 2 responses by audiotroy

audiotroy's avatar
audiotroy
3,875 posts
 
You have a ground loop no need to change cables or gear yiu need a 30 cent cheater plug

We have a lot of experience here this occurs when you bridge two differebt ac locations by connecting gear plugged into two different electical sources

To  test get a long extention cord and plug it in ar the first location and run  to the second if the noise goes away u have verified a ground loop

Dave and troy
Audio intellect Nj




audiotroy's avatar
audiotroy
3,875 posts
 
Did u try the extension cord and get everythingg on the same circuit?
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