Korg Forums Forum Index Korg Forums
A forum for Korg product users and musicians around the world.
Moderated Independently.
Owned by Irish Acts Recording Studio & hosted by KORG USA
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Zero 8 Hiss/Hum
Goto page 1, 2  Next
 
Post new topic   Reply to topic    Korg Forums Forum Index -> Korg Digital Recording and Mixing
View previous topic :: View next topic  
Author Message
splurt
Full Member


Joined: 09 Jul 2007
Posts: 111

PostPosted: Wed Oct 31, 2007 1:54 am    Post subject: Zero 8 Hiss/Hum Reply with quote

Sounds like when you turn an old TDK cassette really loud, all the time.

This is bad.

I read somewhere korg is working on a fix, but tech support wasnt of any help last time, maybe i can get a senior technician on the line

JZ
Back to top
View user's profile Send private message
splurt
Full Member


Joined: 09 Jul 2007
Posts: 111

PostPosted: Wed Oct 31, 2007 2:47 pm    Post subject: Reply with quote

I spoke with korg technical support today.

I will keep everyone updated as to why my mixer is hissing This is the second unit. I am not ruling out that its something here in my studio, although my experience is that its the mixer itself.

I will take it to a repair shop and see what they suggest.
Back to top
View user's profile Send private message
subterFUSE
Full Member


Joined: 15 Sep 2007
Posts: 116

PostPosted: Wed Oct 31, 2007 6:15 pm    Post subject: Reply with quote

I have loud hiss in the background on both the master and booth outputs.

The hiss is NOT from my electrical wiring in the home. When I hook up my Mackie powered monitors and turn them on, there is always a very minor noise floor. When I plug in the XLR cable from the Zero8, the hiss comes in bigtime. This is not ground loop noise. It is something different, and it happens with or without my Firewire connected to the computer.
Back to top
View user's profile Send private message
splurt
Full Member


Joined: 09 Jul 2007
Posts: 111

PostPosted: Thu Nov 01, 2007 10:12 pm    Post subject: Reply with quote

its exactly what i have, why is it that we are the only ones? korg told me they have never heard of this issue?
Back to top
View user's profile Send private message
automatic



Joined: 31 Oct 2007
Posts: 5

PostPosted: Fri Nov 02, 2007 10:08 am    Post subject: Reply with quote

i have the same hiss problem.
Back to top
View user's profile Send private message
splurt
Full Member


Joined: 09 Jul 2007
Posts: 111

PostPosted: Fri Nov 02, 2007 10:12 pm    Post subject: Reply with quote

hi, korg says no one has this problem, so id like to get all of us together and try to fix this problem, this is the noisiest mixer i have ever owned, its noiser then a 50 radio shack dj mixer. this was 1899 , thats a LOT of money. I cannot tolerate this hiss.

Please both of you call korg ASAP in the usa and let them know of this problem, this is the only way it can get fixed!

they told me i was the only issue ever with this problem. please call korg
Back to top
View user's profile Send private message
Sharp
Site Admin


Joined: 02 Jan 2002
Posts: 17999
Location: Ireland

PostPosted: Fri Nov 02, 2007 11:42 pm    Post subject: Reply with quote

Hi Guys.

KORG know of this forum very well, so by all means send them an email linking to this post.
It may help resolve the issue knowing that this is not a unique case.

The information you post could be important to them in solving your problems.

Regards.
Sharp.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
subterFUSE
Full Member


Joined: 15 Sep 2007
Posts: 116

PostPosted: Sun Nov 04, 2007 1:59 pm    Post subject: Reply with quote

I e-mailed Korg support about this weeks ago.
They said to return it, or take it in for repair. Probably a bad master bus.
Back to top
View user's profile Send private message
splurt
Full Member


Joined: 09 Jul 2007
Posts: 111

PostPosted: Sun Nov 04, 2007 11:44 pm    Post subject: Reply with quote

thats kind of what korg was telling me, but they actually told me nobody has complained about it. So i returned one unit, got a replacement, same HISS. Its not a useable mixer yet.

Major problems with my mixer are:

1. Clicking headphone rotary knob at from positions 11:00 to 1:00 (makes a clicking sound in headphones)

2.Major hiss

3. VU meters dont do anything

4. Low output volume through firewire

5. Low inputs on 1/4 jacks

korg will fix some of these in the new os i hope

but this hiss is crazy, for a 1899 mixer?
Back to top
View user's profile Send private message
subterFUSE
Full Member


Joined: 15 Sep 2007
Posts: 116

PostPosted: Mon Nov 05, 2007 4:40 pm    Post subject: Reply with quote

My VU meters don't do anything, either.

Unless I crank the master volume to max, and then crank my channel gains up way high.
Back to top
View user's profile Send private message
bildeaux



Joined: 29 Jan 2007
Posts: 26

PostPosted: Mon Nov 05, 2007 10:42 pm    Post subject: Reply with quote

Same here on the meters.

We ever gonna hear from Korg on here?

b.
Back to top
View user's profile Send private message
splurt
Full Member


Joined: 09 Jul 2007
Posts: 111

PostPosted: Tue Nov 06, 2007 12:25 am    Post subject: Reply with quote

hi bildeaux

can you please tell us if you have the hiss. crank up your monitors and turn your zero 8 on, levels dont matter, volume can be all the way down... just plug it into your monitors and crank up your monitors,

do you hear a hiss

Korg did tell me they will fix vu meters... they know about this

but the hiss is a mystery and id like to know if you have it or not?
Back to top
View user's profile Send private message
jurij.es.a.szakkor



Joined: 10 Nov 2005
Posts: 33

PostPosted: Tue Nov 06, 2007 1:53 pm    Post subject: Reply with quote

splurt wrote:
3. VU meters dont do anything

hello early zero8 adopters,


we've sold a unit to a local customer and we're suffering the same issue.
the vu meters seems getting the initial spike during power on/off,
the backlight is on all the time, however the vu meter seems to be dead,
it does not act as it should be.

just to spare time and logisitics in between the korg service centre,
and un-necessary service and labor cost, could anyone shed light
on this issue please? is this a hardware or most probably a software issue?

the unit is from the 8xx s/n range, i would not call the first batch.
in the meantime, we're contacting the official sources aswell,
in case of any news will come back here and post an update on the subject.


thanks in advance,
jurij.es.a.szakkor

audioworks hangtechnika
szekesfehervar / hungary
Back to top
View user's profile Send private message
jurij.es.a.szakkor



Joined: 10 Nov 2005
Posts: 33

PostPosted: Tue Nov 06, 2007 1:59 pm    Post subject: Reply with quote

perhaps a good idea to compare/match the s/n's...
there might be a pattern amongst them which could help to nail down the issue to a certain production batch.
Back to top
View user's profile Send private message
grrrant



Joined: 19 Sep 2007
Posts: 8

PostPosted: Tue Nov 06, 2007 3:30 pm    Post subject: Reply with quote

I read a response from KORG that went something like this:

Quote:
"It turns out that the Line inputs (on Jacks) are intended for connection of +4dB devices.
The RCA inputs are intended for -10dB devices.

Almost 95% of gear people have (including even the highest end of Korg synths run at -10dB) so, although not ideal, are best connected to the RCA inputs.

This is the reason for the hiss - if the customer is connecting devices by the Jack inputs which are -10dB devices then they will overcompensate on the channel's input gain control and thus raising the noise floor which results in a noisey overall output."


This is COD s**t, and a smoke screen IMO. KORG should already know that we're talking about constant hiss on the master, and not give us a 101 on gain structure.

I have a brand new pair of Yamaha HS80M's with their gain set to 12 o'clock, and my Zero8 creates hiss via XLR with all of it's channels set to MIDI - for clarity, Korg, That's "Zero" devices connected, no channels active.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Korg Forums Forum Index -> Korg Digital Recording and Mixing All times are GMT
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group