Sign in   |  Join   |  Help
Untitled Page

ARCHIVED FORUM -- March 2012 to February 2022
READ ONLY FORUM

This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022

 

Beolab 4 humming problem

rated by 0 users
This post has 5 Replies | 1 Follower

Elmeir
Not Ranked
Posts 3
OFFLINE
Bronze Member
Elmeir Posted: Mon, Feb 16 2015 2:57 PM

I recently bought a pair of Beolab 4 speakers that i connected to my Samsung TV (ue48hu7505) through the 3.5 mm headphone jack. Everything is ok except a really annoying humming sound coming from the speakers. The speakers work just fine plugged to my computer. Unplugging the antenna cable doesn't help. Any advice?

I'm beginning to be desperate. Sad

Premiumverum
Top 500 Contributor
Netherlands
Posts 115
OFFLINE
Gold Member

This is probably noise from the PSU and processor inside the samsung. In a headphone you won't hear this but the sensitive input of active loudspeakers like BL4 can pick it up from a TV headphone output and amplify it.

You need an attenuator in between the TV and the BL's. You can

a) build it yourself: Hissbuster

b) use a headphone volume control, eg this one. Insert between the TV and the BL and set it at 1/4 or half volume (or adjust to taste).

The volume control on your TV will also become more useful instead of already being seriously loud at volume 10.

 

elephant
Top 10 Contributor
AU
Posts 8,219
OFFLINE
Founder
elephant replied on Mon, Feb 16 2015 9:19 PM
Before you start building check the switch setting underneath the BL4s.

There is one slider position for being attached to PCs and another for other LINE sources.

BeoNut since '75

Elmeir
Not Ranked
Posts 3
OFFLINE
Bronze Member
Elmeir replied on Sun, Mar 1 2015 9:01 PM

Thanks alot. I bought that headphone volume control and it worked. Kind of. I now have it set to as low as i can (1/10 maybe), and the humming is nearly gone. I can still hear it when i put my ear close to the speaker. Only problem is that i now have to set the tv volume really loud, but i think i can live with it. It kind of bugs me though that i have this kind of problem, with speakers this expensive.

tompa
Not Ranked
Posts 64
OFFLINE
Bronze Member
tompa replied on Tue, Mar 3 2015 8:04 AM

"It kind of bugs me though that i have this kind of problem, with speakers this expensive"

 

Are you for real???

Blaiming b&o speakers to be bad and expensive then you have buy a cheap tv without proper line out ?????

 

Elmeir
Not Ranked
Posts 3
OFFLINE
Bronze Member
Elmeir replied on Tue, Mar 3 2015 8:44 AM

Um, no. That's not what i was trying to say really. It just bums me that i have a great pair of speakers (yes pretty expensive too) that i am not able to use properly for whatever reason.

Page 1 of 1 (6 items) | RSS