amp powering question

[unknown00 10+ year member]

i have a cadence TXA-1502 powering a 8" JLw3v3 and it is set at 300watts at 4ohms but i don't want the sub handling that much. i only want the sub getting 200-250watts...i have the input gain set half way and bass eq set at about +10 dB (max is +12 dB) with the HU bass on max. should i be fine?

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[Blinkrazy 10+ year member]

use a dmm "digital multi meter"

 

[unknown00 10+ year member]

i plan to buy one soon...but should i be okay? someone is saying i have the bass turned up too much

 

[dman4486 5,000+ posts]

i plan to buy one soon...but should i be okay? someone is saying i have the bass turned up too much

I don't use any bassboost

edit: set gains to whatever power you want to output with the dmm and BB off...

 

[unknown00 10+ year member]

jw why is it better to change gains instead of bassboost?

 

[dman4486 5,000+ posts]

jw why is it better to change gains instead of bassboost?

boost raises a frequency, and those around it on a curve....gain raises the response of the amp relatively level compared to boost

 

[unknown00 10+ year member]

won't gain affect the amount of power going to the sub more than bass though?

 

[dman4486 5,000+ posts]

won't gain affect the amount of power going to the sub more than bass though?

over the amp's entire range, yes

 

[geowick07 10+ year member]

Set gains with DMM, Bass Boost OFF

/thread

 

[unknown00 10+ year member]

so why would you recommend me adjust the gain instead of bass when i was trying to reduce power to sub? sry for the n00b questions...still confused when bass boost should be off

 

[geowick07 10+ year member]

Bass boost should always be off. All it does is boost a certain frequency and those around it, resulting in a "peaky" sound. With the boost off, adjust gains correctly with a DMM, and you will be all set.

 

[dman4486 5,000+ posts]

so why would you recommend me adjust the gain instead of bass when i was trying to reduce power to sub? sry for the n00b questions...still confused when bass boost should be off

because with boost on, one frequency and those close to it will be louder than the rest of the range......

 

[dman4486 5,000+ posts]

Bass boost should always be off. All it does is boost a certain frequency and those around it, resulting in a "peaky" sound. With the boost off, adjust gains correctly with a DMM, and you will be all set.

beat me to it

 

[unknown00 10+ year member]

stupid question- how the hell do you measure voltage to sub? i just bought a dmm and i have negative at negative and positive at positive on speaker wire and it just keeps showing 0

 

[dumpin907 10+ year member]

go to the amp section on the forum list and there should be a sticky to tell you how to use a dmm