Amplifier clipping lights correct? - Car Audio Classifieds!
Car Audio Classifieds!  

Go Back   Car Audio Classifieds! > Car Audio Help & Discussion > General Car Audio Discussion & Questions

General Car Audio Discussion & Questions All general car audio discussion goes here. Need help installing speakers, headunits, amps or electrical? Having problems with equipment? Have questions about a product, post here.


Notices

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-01-2011, 11:15 PM
New CACO Member
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssssss59
Location: Houston
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader: (1)
Feedback Score: 1 reviews
Default Amplifier clipping lights correct?

Right now i'm running a Mb Quart Q1.1500d to 2 SA-15's (soon to be upgraded to a SAZ-2000d) and I was wondering if the clipping light was accurate on these amps? Because I read a thread about setting gains with a dmm and I have just used a 40HZ tone and the clipping light to set it until recently. I would turn the volume on my mp345u to 32/35 (i think it clips at 34) and set the gain up until the clip light would turn amber. However, in the thread it said to use a 50hz tone and set it to the sqrt of my power since i'm running at 1 ohm. I got that number and it was 38.7. So today I disconnected my speaker wire to the subs and hooked in my dmm, put on a 50hz tone and checked the voltage and it was only reading like 20.4 or something, but I noticed when I increased the gain to 38.7 the light for clipping came on around 22 volts. So my question is should I trust the dmm or the clipping light?

Last edited by Z4CK!; 12-01-2011 at 11:20 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 12-01-2011, 11:21 PM
nicholask1993's Avatar
Dubstep Addict
 
Activity Longevity
0/20 15/20
Today Posts
0/11 sssss1802
Location: Asheville, NC
Thanks: 24
Thanked 72 Times in 60 Posts
iTrader: (4)
Feedback Score: 4 reviews
Default

iirc you need to keep the subs wired when using a DMM because the load will make the amplifier react differently and clip at different gain levels...
__________________
1998 Subaru Forester
Sony CDX GT-565UP Head Unit
Cadence 6.5" Components
MB Quart Onyx 1500.1
Skar Audio VVX 15" in magic box designed by
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
/Surreal

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
  #3  
Old 12-01-2011, 11:59 PM
Novicaine's Avatar
CACO Late Night Crew
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssss6135
Location: Porterville, CA
Thanks: 728
Thanked 192 Times in 161 Posts
iTrader: (27)
Feedback Score: 27 reviews
Default

The load does not really change the clipping.....However, having a speaker hookedup can somehow alter where it clips a little. Like say your voltage in your electrical drops because of the load the sub is drawing is too much for the electrical....But this dosn't go to say that impedance causes a real variation in where it clips generally, that's bs.....clipping is due to voltage, not current/load.

Last edited by Novicaine; 12-02-2011 at 12:02 AM.
Reply With Quote Quick reply to this message
 
  #4  
Old 12-02-2011, 12:02 AM
New CACO Member
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssssss59
Location: Houston
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader: (1)
Feedback Score: 1 reviews
Default

Quote:
Originally Posted by Novicaine View Post
The load does not really change the clipping.....However, having a speaker hookedup can somehow alter where it clips a little. Like say your voltage in your electrical drops because of the load the sub is drawing is too much for the electrical....But this dosn't go to say that impedance causes a real variation in where it clips, that's bs.....clipping is due to voltage, not current/load.
So doesn't clipping light coming on at 22 volts seem low for a 1500 amp? I'll test tomorrow with the subs plugged in.
Reply With Quote Quick reply to this message
  #5  
Old 12-02-2011, 12:15 AM
Elite Member
 
Activity Longevity
0/20 17/20
Today Posts
0/11 ssssss855
Location: Las Vegas Nv
Thanks: 19
Thanked 29 Times in 25 Posts
iTrader: (12)
Feedback Score: 12 reviews
Default

Quote:
Originally Posted by Z4CK! View Post
Right now i'm running a Mb Quart Q1.1500d to 2 SA-15's (soon to be upgraded to a SAZ-2000d) and I was wondering if the clipping light was accurate on these amps? Because I read a thread about setting gains with a dmm and I have just used a 40HZ tone and the clipping light to set it until recently. I would turn the volume on my mp345u to 32/35 (i think it clips at 34) and set the gain up until the clip light would turn amber. However, in the thread it said to use a 50hz tone and set it to the sqrt of my power since i'm running at 1 ohm. I got that number and it was 38.7. So today I disconnected my speaker wire to the subs and hooked in my dmm, put on a 50hz tone and checked the voltage and it was only reading like 20.4 or something, but I noticed when I increased the gain to 38.7 the light for clipping came on around 22 volts. So my question is should I trust the dmm or the clipping light?
i would say go by the clipping light the dmm is just a ball park of what the amp should be doing set the voltage with the dmm to what ever the chart says then hook your subs up and turn it down intill the light goes off..
i used to set the gains by dmm didnt seem loud to me i think i was doing it wrong then i went to the 3/4 theories then i got a dd-1 and thats how i set my gains now
Reply With Quote Quick reply to this message
The Following User Says Thank You to lilsoccersully For This Useful Post:
Novicaine (12-02-2011)
  #6  
Old 12-02-2011, 07:29 AM
New CACO Member
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssssss59
Location: Houston
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader: (1)
Feedback Score: 1 reviews
Default

Quote:
Originally Posted by lilsoccersully View Post
i would say go by the clipping light the dmm is just a ball park of what the amp should be doing set the voltage with the dmm to what ever the chart says then hook your subs up and turn it down intill the light goes off..
i used to set the gains by dmm didnt seem loud to me i think i was doing it wrong then i went to the 3/4 theories then i got a dd-1 and thats how i set my gains now
let me borrow your dd-1 cant afford that $150 man
Reply With Quote Quick reply to this message
  #7  
Old 12-02-2011, 12:45 PM
Elite Member
 
Activity Longevity
0/20 17/20
Today Posts
0/11 ssssss855
Location: Las Vegas Nv
Thanks: 19
Thanked 29 Times in 25 Posts
iTrader: (12)
Feedback Score: 12 reviews
Default

Quote:
Originally Posted by Z4CK! View Post
let me borrow your dd-1 cant afford that $150 man
LOL I might be going to Houston soon with in a week but I'm not sure yet and if i do I'll bring it with me
Reply With Quote Quick reply to this message
  #8  
Old 12-02-2011, 05:28 PM
Novicaine's Avatar
CACO Late Night Crew
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssss6135
Location: Porterville, CA
Thanks: 728
Thanked 192 Times in 161 Posts
iTrader: (27)
Feedback Score: 27 reviews
Default

I'd also agree that the DMM is just a ballpark...It IS infact a guess because you aren't going really know where the amp clips at by putting it to the "rated output", we all know some amps are overrated, some under.

Anyway, as to the question: Dosn't 22v seem too low for 1500watts? I have NO idea. All amps are different. If you want to be sure then try an o-scope or that DD1 thing.
Reply With Quote Quick reply to this message
  #9  
Old 12-02-2011, 06:48 PM
New CACO Member
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssssss59
Location: Houston
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader: (1)
Feedback Score: 1 reviews
Default

I'm probably just gunna ahead and get the dso nano because I've seen the difference a little gain can make.
Reply With Quote Quick reply to this message
  #10  
Old 12-02-2011, 06:52 PM
Novicaine's Avatar
CACO Late Night Crew
 
Activity Longevity
0/20 17/20
Today Posts
0/11 sssss6135
Location: Porterville, CA
Thanks: 728
Thanked 192 Times in 161 Posts
iTrader: (27)
Feedback Score: 27 reviews
Default

Quote:
Originally Posted by Z4CK! View Post
I'm probably just gunna ahead and get the dso nano because I've seen the difference a little gain can make.
I ordered one myself but the damn thing hasn't came for about a month so far....I think it gets here from overseas and should be here in maybe a week .....Make sure to order from inside the US.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Car Audio Classifieds! forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Location
Where you live
Level of Car Audio Knowledge
What's your level of car audio?

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
does this look correct? knockinthastreetzof608 General Car Audio Discussion & Questions 12 04-10-2011 01:19 PM
Just making sure this is correct? jrplayer36 General Car Audio Discussion & Questions 0 12-15-2010 10:00 PM
Is this Correct? beany General Car Audio Discussion & Questions 26 11-01-2010 08:33 PM
Is my box correct? crownvicon26's General Car Audio Discussion & Questions 37 11-01-2010 08:27 AM
Need an amp, need your help to find a correct one. Bologna General Car Audio Discussion & Questions 3 04-27-2009 08:52 PM

» Amps
A/d/s/
Advent
Alphasonik
Alpine
American Bass
ARC Audio
Atomic
Audio Art
Audio Gods
Audiobahn
Audiocontrol
Audiopipe
Audison
Aura
Autotek
Avionixx
Bazooka
Beyma
Blaupunkt
Boss
Boston Acoustics
Bravox
Cadence
Cascade (CAE)
CDT Audio
Cerwin Vega
Clarion
Clif Designs
Concept
Coustic
Critical Mass
Crossfire
Crunch
DB Drive
DC Audio
DC Power
DEI
Denon
Diabolo
Diamond
Digital Designs
Directed
DLS
Dual
DYnamat
Dynaudio
Earthquake
Eclipse
Elemental Designs
ESX
Eton
Farenheit
Fi Car Audio
Fix My Speaker
Focal
Fusion
Genesis
Ground Zero
Hafler
Helix
Hertz
Hifonics
Hushmat
Image Dynamics
Infinity
Interfire
JBL
Jensen
JL Audio
JVC
Kenwood
Kicker
Knu Konceptz
Kole Audio
Kove Audio
Lanzar
Lightning Audio
Linear Power
MA Audio
Magnat
Marantz
Massive Audio
MB Quart
McIntosh
Memphis
Metra
MMATS
Mobile Authority
Morel
MTX
Nakamichi
Niche Audio
O2 Audio
Ohio Generator
Optima
Orion
Oxygen Audio
OZ Audio
PG Audio
Phase Linear
Phoenix Gold
Pioneer
Polk
Power Acoustik
Powerbass
Powermaster
Precision Power
Profile
Pyle
Pyramid
RadioShack
Rainbow
Rampage
RE AUdio
Rockford Fosgate
Scanspeak
Scosche
Seas
Sony
soundstream
Sparkomatic
SPL Dynamics
Stinger
Sundown Audio
Swiss Audio
Targa
TC Sounds
TREO Engineering
TRU
Tsunami
Ultimate
US Acoustics
US Amps
Velodyne
Vifa
Viper
Visonik
Xtant
Zapco
Zed Audio
Powered by vBadvanced CMPS v3.2.3
Links
Amp Guts
amplifier, amp guts, ampguts, car audio classifieds, speakers and subs for sale with listings of 12 volt sound systems. Security systems for sale for aftermarket car audio equipment with amplifier and amps for sale
Car Audio Forum
car audio forum, moble audio, car stereo, wholesale car audio, 12 volt, with, amplifier, amp, subwoofer, sound quality, buy car audio, and sell automotive stereo systems for cars
Car Audio Sound Quality Forum
Sound QUality science based car audio forum, amplifier, subs and speaker design, fabrication help, sound systems forum, aftermarket car audio website for sound quality.
Car Stereo Forum
DIYMA car audio stereo forum for 12 volt car audio subwoofer and amplifier systems that have sound quality with wholesale car audio products.


All times are GMT -5. The time now is 06:01 AM.


Powered by vBulletin
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.