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The Musician Forums => Music Technology & Pro Audio => Topic started by: aperture on November 23, 2005, 12:12:33 AM

Title: behringer ub802
Post by: aperture on November 23, 2005, 12:12:33 AM
im very new to this..  
I bought this last saturday.. electronics depot was having a sale..
from 4.7k then less 15% and got it for 3.9k..
i have some questions about this mixer.. are there really audible
hiss with this mixer? because i believe i can hear one while using
shure 16a condenser mic..  
have i made the right choice in buying this mixer? i could have gone
buying the samson mdr624 or the peavey pv8 instead..
how do i really confirm that this mixer really does produces a hiss...

or have i got a lemon UB802? :(
Title: behringer ub802
Post by: af_villaruel on November 23, 2005, 12:33:42 AM
if u bought it at electronics depot, i doubt that its a dud. best thing is you take it back there together with your mic and retest.  8)
Title: behringer ub802
Post by: julianesmiles on November 23, 2005, 11:22:26 AM
hey where is this electronics depot?
Title: behringer ub802
Post by: KitC on November 23, 2005, 03:20:31 PM
Your Shure 16A is a cardioid small diaphragm electret condenser that requires a 1.5V AA battery in order to function. The battery is used to keep the condenser backplate charged and as such, I don't think it requires phantom power in order to operate. According to Shure, the mic is a high output design and you should be have a substantial signal to noise ratio. Try checking and replacing the battery isn't on it's last legs already.
Title: behringer ub802
Post by: starfugger on November 24, 2005, 07:37:43 AM
i have a shure 16LC i think. pencil type condenser that requires a 1.5V battery and it IS quite noisy. i usually have to use a denoiser on the track recorded with it. :)
Title: behringer ub802
Post by: Tarkuz Toccata on November 24, 2005, 09:23:39 AM
Quote from: starfugger
i have a shure 16LC i think. pencil type condenser that requires a 1.5V battery and it IS quite noisy. i usually have to use a denoiser on the track recorded with it. :)

that's strange. there are a lot of drum kit setups in clubs and home recording studios that use shure 16L as overhead mic. i also know some churches that use shure 16L as their choir mic. it works very well in all those applications. the shure 16L is an old model but very reliable and affordable condenser mic.

maybe your shure 16L needs to be serviced. please bring it to audiophile for inspection.
Title: behringer ub802
Post by: KitC on November 24, 2005, 11:05:27 AM
Quote from: starfugger
i have a shure 16LC i think. pencil type condenser that requires a 1.5V battery and it IS quite noisy. i usually have to use a denoiser on the track recorded with it. :)


I'd go easy on the denoiser 'coz it usually has a detrimental effect on the sound unless used judiciously and in stages.

If the Shure is noisy, first thing I would look at is the gain structuring of the audio path. Another source would also be impedance mismatching along the line.
Title: behringer ub802
Post by: aperture on November 25, 2005, 02:44:50 AM
Quote from: julianesmiles
hey where is this electronics depot?

I bought it here in Festival Mall Alabang...    

how do I can i really test if the mixer does really  produce a hiss..
I did some testing with no mic connected with headphones connected...
Volume level for all channels set to the lowest, headphone level at 80% and main volume level at max..  level of the 1st channel to the center and gain level is at the lowest. i can hear some hiss from my headphone..

this is my first mixer.. and i really cant conclude if this is just normal...  
thanks in advanced..
Title: behringer ub802
Post by: YJMCowboy on February 03, 2006, 12:51:48 AM
I have a UB1202.

It seems the headphone amp is the one producing the hiss.
This is not the path to the recording out or simply outs.
I tried it on my computer speakers and the UB mixer is silent enough.
It's almost dead silent, just dont crank the faders to high.
I dont think they would call them IMP pre amps for nothing,
nor would Uli Behringer use his initials if these things where
total crap. The noise on the headphones is a trade off,
but hey, it's just for listening. I've tried recording from the XLR's
which are balanced and it's almost dead silent. I have yet to try the line ins. They're a bit noisier I think.