-

Jump to content



Sign up for a free account!

Signing up for an account is fast and free. As a member you can join in the conversation, enter contests and you won't get the popup ads that guests get. Click here to create your free account.

Photo

How to set amplifier gain?


This topic has been archived. This means that you cannot reply to this topic.
9 replies to this topic

#1 of 10 Scott L

Scott L

    Producer

  • 4,466 posts
  • Join Date: Feb 29 2000

Posted November 24 2003 - 05:49 PM

I have it very low, because I read somewhere it's best to have a good strong signal from the head unit rather than just amplifying a weak signal via the amp gain.

So what's yours set at.. low/medium/high? Any rule of thumb on setting it?

#2 of 10 Frank Grimes

Frank Grimes

    Second Unit

  • 260 posts
  • Join Date: Jul 19 2002

Posted November 24 2003 - 05:57 PM

Depnds totally on the amp and head unit being used. What equipment are you speaking of?
I flip you. I flip you for real.
My Big Top 20

#3 of 10 Scott L

Scott L

    Producer

  • 4,466 posts
  • Join Date: Feb 29 2000

Posted November 24 2003 - 07:07 PM

Just a basic system. Alpine 9813 > RF 551X > Focal Polyglass Components & Coax's. About 70wx4. thanks

#4 of 10 DonnyD

DonnyD

    Screenwriter

  • 1,154 posts
  • Join Date: Jun 12 1999

Posted November 24 2003 - 10:34 PM

A general rule of thumb is to turn the amp gain all the way down, turn your HU volume to about 3/4, then slowly turn your amp gain up until you hear clipping or distortion, then back the amp gain down just a tad.

Second option, check your specs on the HU to see how many volt output it has and set the amp accordingly.
"There comes a time in the lives of men, when taken at the tide, you're liable to ****ing drown..." R. Farina
"or go broke due to upgraditis..." D. Davis

#5 of 10 Sean^M

Sean^M

    Stunt Coordinator

  • 124 posts
  • Join Date: Oct 12 2003

Posted November 25 2003 - 02:43 AM

proper gain setting:

Totoro's guide to gain setting, complete with 2 CD images of test tones and instructions for use.
http://totoro.efireg....ainSetting.htm

information about setting the gains on amplifiers
http://www.eatel.net...sc/gaincon2.htm

how to set gains using an oscilloscope (the best way)
http://www.eatel.net....swithscope.htm

#6 of 10 Camm

Camm

    Extra

  • 22 posts
  • Join Date: Jan 08 2003

Posted November 25 2003 - 01:17 PM

here is a link to jl's guide this is the way i have always done it.
Jl gain setting guide

#7 of 10 Jared Rachwalsk

Jared Rachwalsk

    Auditioning

  • 5 posts
  • Join Date: Sep 30 2003

Posted December 24 2003 - 11:18 AM

Rule of thumb....set it to what sounds best.

Ask any installer and 9/10 times they set it by ear.

Unless you are competing, then they only thing that matters is how it sounds to you.

#8 of 10 Jay H

Jay H

    Producer

  • 5,634 posts
  • Join Date: Mar 22 1999
  • Real Name:Jay
  • LocationPittsfield, MA

Posted December 31 2003 - 12:37 AM

How convienient, this was my next thread. Do any of you know where I can get a simply 1khz unclipped with no attenuation as a singly track??? I saw Sean's link and it looks like I can use Track#6 on CD#2, however, I am on dialup and I'm not downloading 148MBs of data on dialup! I was wondering if anybody has a link to a simply 10 second track consisting of the above spec. I have an AC voltmeter already so all I need is the test tone...

Jay
You are the crispy noodle in the vegetarian salad of life

#9 of 10 brentl

brentl

    Screenwriter

  • 2,918 posts
  • Join Date: May 07 1999

Posted December 31 2003 - 11:46 AM

"simply 1khz unclipped with no attenuation as a singly track"

What the?

HUH!

Brent

#10 of 10 Jay H

Jay H

    Producer

  • 5,634 posts
  • Join Date: Mar 22 1999
  • Real Name:Jay
  • LocationPittsfield, MA

Posted December 31 2003 - 11:58 PM

Go to:

PDF file below:

http://totoro.efireg......20for CD.pdf

Goto page 2, take a look at the track listings for CD#2. I want track#6, I don't want any other tracks, I don't need to hear what clipping sounds like and I don't need to make this into a PhD dissertation! I just want a test tone!

Don't need it anytime soon, if I can't find one elsewhere, I'll wait til I'm back to work and download it there.

Jay
You are the crispy noodle in the vegetarian salad of life