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#96816 - 08/26/04 01:31 PM Re: When would one use a mic pre-amp?
Tom Cavanaugh Offline
Senior Member

Registered: 12/06/99
Posts: 2133
Loc: Muskegon, MI
Bill,

The Digitech Vr has a very good mic pre amp. I don't think anything else is needed.

Tom
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Thanks,

Tom

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#96817 - 08/26/04 02:08 PM Re: When would one use a mic pre-amp?
travlin'easy Offline
Senior Member

Registered: 12/08/02
Posts: 15576
Loc: Forest Hill, MD USA
Bill,

The Digitech has its own preamp that is built in. You don't need one. Just plug the output directly into the powered speakers, or run it through the Tyros Aux-In.

Dave, I just turned the 3000 all the way up and there is no hiss--it's stone quiet. I then plugged it into my amp, cranked it up all the way--no hiss. Plugged in the Sennheiser E-855, turned up the mic volume and no hiss. Turned my hearing aid up all the way and still no his. Must be something in your set-up. My EQ's are set pretty hot, both the general and mic, so I can't blame it on the EQ.

The real test was to ask Carol if she heard any hiss. That woman can hear a mouse peeing on cotton. She said there was no hiss. If she can't hear it, then it just does not exist. Gotta' be something in your system that's causing it.

Gary
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)

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#96818 - 08/26/04 08:50 PM Re: When would one use a mic pre-amp?
Uncle Dave Offline
Senior Member

Registered: 12/01/99
Posts: 12800
Loc: Penn Yan, NY
Gary,
It's a noice gate thing. Yamaha disguises it very well when the keys are not pressed. As soon as you play a note ..... there it is. I gotta challange you on this one !
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No longer monitoring this forum. Please visit www.daveboydmusic.com for contact info

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#96819 - 08/27/04 07:11 AM Re: When would one use a mic pre-amp?
travlin'easy Offline
Senior Member

Registered: 12/08/02
Posts: 15576
Loc: Forest Hill, MD USA
Sorry Dave. Just tried it with keys pressed down and no hiss. What settings are you using for your EQ, etc? Must be something you're doing differently than DonM, Donny, Hank and myself. We're not getting any hiss at all. So far, I have not been able to duplicate the problem using my rig. If I could, I could then figure out a fix for your system. I've tried everything I know to make it hiss and it just does not happen.

I know I'm old and my hearing is shot to hell, but Carol's hearing is better than anyone I know. If the hiss were there, she would tell me right away. After nearly 44 years, she's not at all bashful about telling me something. I even plugged in my headset, which is very high quality, plugged in the mic, turned both volumes up all the way, held down a "C" chord, and no hiss. This is way beyond normal operating levels.

Wish I could be of more help in coming up with a solution, but without being there to hear your system, it's difficult to diagnose the problem. Guess I'll have to make another trip north.

Good Luck,

Gary
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)

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#96820 - 08/27/04 07:17 AM Re: When would one use a mic pre-amp?
DonM Offline
Senior Member

Registered: 06/25/99
Posts: 16735
Loc: Benton, LA, USA
I think the hiss is in your head, Dave. Maybe an aftereffect of Redhead withdrawal.
Or maybe it's that cheap little Bose pa system you are using.
Come on down with DNJ and Gary in January. Maybe the humidity here stops the hiss.
DonM
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DonM

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#96821 - 08/27/04 07:41 AM Re: When would one use a mic pre-amp?
btweengigs Offline
Senior Member

Registered: 09/09/02
Posts: 2204
Loc: Florida, USA
I heard a hiss when I STOPPED playing. Told a joke between songs...and the whole room hissed.
Eddie

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#96822 - 08/27/04 08:23 AM Re: When would one use a mic pre-amp?
keybplayer Offline
Senior Member

Registered: 10/27/03
Posts: 2417
Loc: CA
Quote:
Originally posted by travlin'easy:
Gotta' be something in your system that's causing it.

Gary



Dave's PSR 3000 seems to be throwing a 'hissy' fit.

PS: A good test would be to try another PSR 3000 and do all the things Gary did to his to try and get it to hiss. If and when you find one that doesn't hiss, immediately purchase it and sell the hissy one preferably to someone who doesn't mind a little hiss. Either that or to a person who is hard of hearing and wouldn't know the diff anyway.

Better yet, send it back to a Yammie repair shop and tell them to fix it ASAP. That way you wouldn't be dumping off a faulty product on someone else Dave. It's under warranty right? So let Yammie fix it if it bugs you enough to be annoying to you and more importantly annoying to your audience.

You may have gotten a rotten apple in the otherwise vast majority of hiss-less ones. It might be something faulty in the Keyboard's innards. Either that or your house line A/C current is fluctuating beyond the norm and possibly causing the hiss. You may need a line conditioner UD.

Maybe it's not isolated to just your home either. Could be the whole Philly area, who knows? So you may have to drive quite a distance to find a hiss-less one if you decide to do the 'hiss' test.

Best regards,
Mike
_________________________
Yamaha Genos, Mackie HR824 MKII Studio Monitors, Mackie 1202 VLZ Pro Mixer (made in USA), Cakewalk Sonar Platinum, Shure SM58 vocal mic.

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#96823 - 08/27/04 08:41 AM Re: When would one use a mic pre-amp?
RichUK Offline
Member

Registered: 06/17/00
Posts: 143
Loc: England
Although there's no hiss coming from the speakers when I turn the volume up to max, as soon as I plug the mic in (switched off) there's slight hiss when you turn the volume up to max... and that's with the mic trim set at minimum.

Naturally, as Dave mentioned, it disappears when you switch the noise gate on.

It's not just hiss though, turn the mic trim past 12 o'clock and you get a nice little buzzing sound accompanying the hiss too.

Cheers,
Rich

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#96824 - 08/27/04 12:07 PM Re: When would one use a mic pre-amp?
travlin'easy Offline
Senior Member

Registered: 12/08/02
Posts: 15576
Loc: Forest Hill, MD USA
Rich,

I turned everything up as high as it would go, the mic volume(s), master, etc. No humm, no hiss.

In an effort to duplicate the humm, I plugged in an unshielded, inexpensive mic cable and an old Shure mic. Then I get a low-level humm, but again, the volume level really was turned way above normal operating levels.

If I recall, Dave is running everything through a mixer. It's possible that this could be the root of the problem, but without actually being there and going through the process of elimination, I cannot make that determination. Like I said, time for another trip to the frozen north--just as soon as the BENYS leave.

Gary
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)

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#96825 - 08/27/04 12:28 PM Re: When would one use a mic pre-amp?
DonM Offline
Senior Member

Registered: 06/25/99
Posts: 16735
Loc: Benton, LA, USA
Petey was a snake, only sooo big. Petey lived in a pit with his mother.
One day Petey was hissing in the pit when his mother said, "Petey, don't
hiss in the pit. If you must hiss, go outside the pit and hiss." Petey
went outside the pit to hiss. Petey was hissing all around, when he
finally leaned over a little and hissed in the pit. Petey's mother
heard Petey hissing in the pit and said, "Petey, if you must hiss in the
pit, go over to Mrs. Pott's pit and hiss in her pit." But Mrs. Pott's
was not at home, so he hissed in her pit anyway. While Petey was
hissing in Mrs. Pott's pit, Mrs. Pott's came home and found Petey
hissing in her pit and said. "Petey, if you must hiss in a pit, don't
hiss in my pit, go to your own pit and hiss." This made Petey very sad
and he cried all the way home. When Petey got home, his mother saw him
crying and said, "Petey, what's the matter?" Petey said, "I went over
to Mrs. Pott's pit to hiss in her pit, but she was not home so I hissed
in her pit anyway. Mrs. Pott's came home and found me hissing in her
pit and said, "Petey, if you must hiss in a pit, don't hiss in my pit,
go to your own pit and hiss."" This made Petey's mother very angry.
She said, "Why that mean old lady. I knew Mrs. Pott's when she didn't
have a pit to hiss in"

DonM
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DonM

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