• From: Poland
  • Registered: 2008-07-09
  • Posts: 379

Topic: sh 101 - ground hum

Anyone know how to get rid of the hum that sh 101 produces? I'm using Roland AC adaptor ACI-230 C  [9v 1000mA]. Dunno if the hum exists when synth is powered by batteries - will check tomorrow.

  • From: CPH S
  • Registered: 2008-07-14
  • Posts: 635

Re: sh 101 - ground hum

I don't think mine hummes at all...

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  • rude66
  • robot des duivels
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  • Registered: 2008-07-07
  • Posts: 1,844

Re: sh 101 - ground hum

the hum is usually caused by the adapters. try another one, basically any 9v 300mA will do.. i've always used those cheap multi-ones with 101's and never had a problem..

4 Reply by Squadra Smackos (edited by Squadra Smackos 2009-07-08 00:00:29)

  • Registered: 2008-07-08
  • Posts: 1,708

Re: sh 101 - ground hum

Officialy the Roland PSA120S is the one for the SH101 (of the available powersupplies today)

A SH101 is very "feely" towards a wrong power adapter and will hum with the slightest different one.

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  • rude66
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Re: sh 101 - ground hum

i keep reading that too, but i've had 3 here, and they all worked fine with 5 euro multi power adapters from the gamma or similar places..

6 Reply by Squadra Smackos (edited by Squadra Smackos 2009-07-08 00:19:25)

  • Registered: 2008-07-08
  • Posts: 1,708

Re: sh 101 - ground hum

Must be hit or miss with some 101's or maybe different versions cause I've had and seen many that hum with the wrong adapter. The newer Boss stuff is really bad with using a wrong adapter it will simply stop working after a while sad

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  • ramos
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  • Registered: 2008-07-07
  • Posts: 507

Re: sh 101 - ground hum

had the same problem, the Boss PSA adaptor fixed it....

  • From: Cuzcatl
  • Registered: 2009-02-04
  • Posts: 103

Re: sh 101 - ground hum

i need 2 sh-101 power adapters..both of mine are pretty wack. where can you buy them?

  • Registered: 2008-07-07
  • Posts: 663

Re: sh 101 - ground hum

You can order them from any musicstore that sells Roland / Boss.

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  • From: 0172
  • Registered: 2008-07-07
  • Posts: 748

Re: sh 101 - ground hum

I cannot really remember hums, but I guess you don't hear in in the mix because of the other sounds.

  • From: Bethnal Green
  • Registered: 2008-10-28
  • Posts: 38

Re: sh 101 - ground hum

years ago i used to get mine from maplin and they were always fine, but recently i got one of their new own branded power supplies and it was horribly noisy (plugged into equipment or not!), i took it back and the replacement was the same. so i'd say if you can find somewhere else reputable on-line, that's a safer bet imo. not sure who to recommend though.

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  • Registered: 2008-07-08
  • Posts: 1,708

Re: sh 101 - ground hum

could have something to do with how the electricity is in your house (like when you turn off a light you hear it through the mixer)?

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  • Registered: 2008-07-08
  • Posts: 394

Re: sh 101 - ground hum

http://www.thomann.de/gb/boss_psa_230.htm

i got one of those with my re-20, works great for both 606 and 101