Reply to thread

Message

<blockquote data-quote="transamfan" data-source="post: 5235568" data-attributes="member: 583293">I have Pioneer DEH-P980BT head unit with 5V preouts, Boston Pro 60 components, and a Kicker SX700.4 amp.I used a 1khz test tone at 0dB for my measurements.&nbsp; Turned eq to flat, volume to 45/62...etc.The components are rated for 125 RMS and they are a 3 ohm load.The amp puts out 82 watts per channel at 4 ohm and 163 per channel at 2 ohm, so I was shooting for 120 watts at 3 ohm, or a target voltage of 18.9V.What I was able to measure was:1) voltage of RCAs at the amp was only .5V2) I was only able to get about 14V per channel with gain maxed out, not anywhere close to my target voltage of 18.9.3) The amp was seeing 14.3VWhat&#039;s the problem with my numbers?&nbsp; This is my first time trying to correctly set my gains, so I know I have probably done something wrong.&nbsp; My guess is some setting either on the amp or head unit (both are new to me and pretty technical).&nbsp; I am supposed to unhook speakers and measure with no impedence load on the amp, correct?&nbsp; At first I thought I would be able to set the impedence with my multimeter (a high dollar simpson 260) to simulate the 3 ohm load the amp would be seeing but this is not possible.&nbsp; Someone set me straight please.</blockquote>

[QUOTE="transamfan, post: 5235568, member: 583293"] I have Pioneer DEH-P980BT head unit with 5V preouts, Boston Pro 60 components, and a Kicker SX700.4 amp. I used a 1khz test tone at 0dB for my measurements. Turned eq to flat, volume to 45/62...etc. The components are rated for 125 RMS and they are a 3 ohm load. The amp puts out 82 watts per channel at 4 ohm and 163 per channel at 2 ohm, so I was shooting for 120 watts at 3 ohm, or a target voltage of 18.9V. What I was able to measure was: 1) voltage of RCAs at the amp was only .5V 2) I was only able to get about 14V per channel with gain maxed out, not anywhere close to my target voltage of 18.9. 3) The amp was seeing 14.3V What's the problem with my numbers? This is my first time trying to correctly set my gains, so I know I have probably done something wrong. My guess is some setting either on the amp or head unit (both are new to me and pretty technical). I am supposed to unhook speakers and measure with no impedence load on the amp, correct? At first I thought I would be able to set the impedence with my multimeter (a high dollar simpson 260) to simulate the 3 ohm load the amp would be seeing but this is not possible. Someone set me straight please. [/QUOTE]

Verification