S4 - high pitched sound problem, anyone help
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S4 - high pitched sound problem, anyone help Posted on: 06.02.2011 by Ewa Wearmouth Hi, i tried my s4 at home with no problems, i got to my bar gig and plugged directly > into the pa from the rca outs on the s4, when i turned the bars pa up there was a high > pitched tone coming from the speakers. > > i was using the power supply on the s4, i noticed that when i unplugged my laptop > mains lead that the noise stopped, which suggests that it may be a setting on the laptop. have been through the system enhance ment tools with no luck, high performance mode on my laptop actually makes the sound louder. im running a sony vaio with 4gb ram, core duo processors 2.20ghz, im getting no pops or anything else as mentioned in other posts just this high pitched sound. ive been using this laptop for the past year on other hardware/software combination with no issues. any help would be appreciated. ive also went through the manual before anyone starts suggesting the obvious! soz again for the post in general discussion but it doesnt want to let me post in the s4 discussion, unsure why. | |
| Ewa Wearmouth 06.02.2011 | Hi, i tried my s4 at home with no problems, i got to my bar gig and plugged directly > into the pa from the rca outs on the s4, when i turned the bars pa up there was a high > pitched tone coming from the speakers. > > i was using the power supply on the s4, i noticed that when i unplugged my laptop > mains lead that the noise stopped, which suggests that it may be a setting on the laptop. have been through the system enhance ment tools with no luck, high performance mode on my laptop actually makes the sound louder. im running a sony vaio with 4gb ram, core duo processors 2.20ghz, im getting no pops or anything else as mentioned in other posts just this high pitched sound. ive been using this laptop for the past year on other hardware/software combination with no issues. any help would be appreciated. ive also went through the manual before anyone starts suggesting the obvious! soz again for the post in general discussion but it doesnt want to let me post in the s4 discussion, unsure why. |
| Lisa Lochotzki 06.02.2011 | Yes the ground loop isolator will be the recommended solution. However, as there's no risk of shock hazard here, I would try something else before. The S4 have balanced outputs... it is common to use a Balanced to unbalanced cable without the Sleeve connection. 1/4 Tip goes to RCA Tip 1/4 Ring goes to RCA Ring This may work. Another option, if your Laptop have a 3 prongs power supply, find a good 2 prong power supply. DON'T CUT THE THIRD PIN.... THAT'S DANGEROUS AND ILLEGAL IN MOST/ALL COUNTRY!!! |
| Leeanna Ayla 06.02.2011 | You need a ground loop isolator. Several threads on this if you search for it. |
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