Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Join
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Equipment
Amplifiers
Gain setting: PPI 900.4 with a Stock HU voltage output I don't know
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="kiteman" data-source="post: 8499900" data-attributes="member: 658254"><p>I have a 2012 Camaro with the upgraded Boston Acoustics system. My system includes:</p><p></p><p>Stock head unit</p><p></p><p>PPI 900.4 powering Polk db6501 front components (145w @ 4ohms) and 1 Infinity Kappa 100.9w (450w @ 4ohms) in a ported box.</p><p></p><p>I don't know the voltage output on my HU, and therefore don't really know how/where to set the gains on the amp. My HU goes to a vol max of 45, so I've decided not to exceed 25 and am guessing anything above that will clip on the HU. Just a guess though. On the amp I have both gains set to around 65%, but I think I want to bring the fronts down a bit because they seem to overpower the bass a little and also get a little muffled sounding in the 22-23 volume range. I don't know if that means they are clipping or just can't handle high volumes.</p><p></p><p>Do you guys know what my stock HU output voltage might be, or think that I'm safe at these gain levels? I tried the test tone and DMM ways of setting gains, but honestly the subwoofer was barely audible at the level my DMM suggested. I turned it up and the bass still sounds clean, although I suspect light clipping I wouldn't actually hear. Everything I've read about gain setting hints that you are trying to match the amp's voltage with your HU voltage, but without knowing my HU voltage, I don't know if I'm in a *safe* range.</p></blockquote><p></p>
[QUOTE="kiteman, post: 8499900, member: 658254"] I have a 2012 Camaro with the upgraded Boston Acoustics system. My system includes: Stock head unit PPI 900.4 powering Polk db6501 front components (145w @ 4ohms) and 1 Infinity Kappa 100.9w (450w @ 4ohms) in a ported box. I don't know the voltage output on my HU, and therefore don't really know how/where to set the gains on the amp. My HU goes to a vol max of 45, so I've decided not to exceed 25 and am guessing anything above that will clip on the HU. Just a guess though. On the amp I have both gains set to around 65%, but I think I want to bring the fronts down a bit because they seem to overpower the bass a little and also get a little muffled sounding in the 22-23 volume range. I don't know if that means they are clipping or just can't handle high volumes. Do you guys know what my stock HU output voltage might be, or think that I'm safe at these gain levels? I tried the test tone and DMM ways of setting gains, but honestly the subwoofer was barely audible at the level my DMM suggested. I turned it up and the bass still sounds clean, although I suspect light clipping I wouldn't actually hear. Everything I've read about gain setting hints that you are trying to match the amp's voltage with your HU voltage, but without knowing my HU voltage, I don't know if I'm in a *safe* range. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Equipment
Amplifiers
Gain setting: PPI 900.4 with a Stock HU voltage output I don't know
Top
Menu
Home
Refresh