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a novice at amp and sub settings

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=106930
Printed Date: May 03, 2024 at 3:26 AM


Topic: a novice at amp and sub settings

Posted By: drunknspike
Subject: a novice at amp and sub settings
Date Posted: August 21, 2008 at 4:20 PM

ive got my amp and sub wired up

im running it off a sony cdx f7500

https://www.sony.co.uk/product/ica-cd...TechnicalSpecs

ive got amp+sub wired to 2 ohm

sub
https://www.crutchfield.com/S-Bm5770M...x?i=500MRDM605
amp
https://www.ice-direct.com/cid/KRRRQH...-PALP_MRDM605/

as my head unit is 2v ive tried setting my amp gain to match as its a digital amp i can see what the gains are on the lcd but it doesent have a 2.0 setting only

0.1/0.2/0.3/0.4/0.5/0.7/1.0/1.5/2.5/4.0/8.0

ive set it to 2.5 as its the closest to 2v but isnt very loud (the subs hardley moving) the head unit bass is set to none eq off sub on full

amp bass eq off
lp filter 85 (theres no 80)
subsonic filter 15hz
lp slope 24db

can any one tell me how to get the bass up and the sub moving
thanx




Replies:

Posted By: drunknspike
Date Posted: August 21, 2008 at 4:27 PM




Posted By: drunknspike
Date Posted: August 21, 2008 at 4:40 PM




Posted By: stevdart
Date Posted: August 21, 2008 at 10:22 PM

Start with reading the sticky subject above about how to set gains.  It doesn't matter that your head unit "is 2V" and it doesn't matter what numbers are etched around the gain dial.  And disregard the digital LCD display on the amp.

When you set the amp gain to match the deck output, you will be listening for a tone deviation in a controlled test.  Wherever you find that golden spot is where you leave the gain dial...no matter what corresponding voltage number is associated with the setting.

Otherwise, the settings you listed above look to be fine.



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.





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