Well got my kid's stereo put in.
Single 12" in ext cab s-10
With the amp bridged it should be putting out 400 watts, but to get any output I had to turn the gain all the way up to get decent output. I tried to set it with a dmm on a 40hz tone I downloaded to my laptop. I had the laptop volume all the way up and set the deck volume at 20, it goes up to 30. It showed 40 ac volts with the gain all the way up so I thought that should be ok, but the amp seemed to be getting a little to hot.
So I put in my da7232 amp and wired the sub to one channel so should be pushing 500 watts to it. Still have to turn the gain all the way up to get decent output.
Voltage is staying over 14 volts.
This is the sub he is running... SW7124DVC-T2 Eclipse 12 Inch Subwoofer (SW7124DVC-T2) and it is wired to 4 ohm.
Here is his head unit...Alpine Electronics of America, Inc.
Poor choice in head units, my fault.
Here is the specs to the amp that is hooked up, like I said I am only running off one channel.
Output Power at 13.8V:
2 x 500W @ 4 ohms (0.005% THD)
2 x 1000W @ 2 ohms (0.007% THD)
S/N Ratio: >120dB
Freq. Response: 4Hz 3kHz
Damping Factor: >1000
Max Current Consumption: 200A
Here are the specs for the smaller eclipse 33250, I think this should power it decent.
Max. Power Output 310W × 2ch (2Ω) 310W × 2ch (2Ω)
2Ω 200W × 2ch 200W × 2ch
Power Output 4Ω 130W × 2ch 130W × 2ch
4Ω bridged 400W × 1ch 400W × 1ch
THD @ Rated Power @ 2Ω stereo 0.008% 0.008%
@ 4Ω stereo 0.004% 0.004%
@ 4Ω bridged 0.008% 0.008%
Signal to Noise 105dB 105dB
Freq. Response +0, –0.7 +0, –0.7
Crosstalk –75dB –75dB
Slew Rate 10Vμs 10Vμs
Damping Factor @ 60Hz >200 >200
Input Sensitivity 0.2 ~ 8V 0.2 ~ 8V
Max. Current Consumption (4Ω) 50 amps 50 amps
Amp Crossover High Pass 12dB/octave 120Hz —
Low Pass 12dB/octave 50 ~ 200Hz 50 ~ 200Hz
Pre-Out Crossover High Pass 12dB/octave 50 ~ 200Hz —
Low Pass 12dB/octave — —
Subsonic Filter Freq. Range 0 ~ 50Hz 20Hz (Fix)
Slope 24dB/octave 24dB/octave
Dimensions (W × H × D) 11.32˝ × 2.05˝ × 11.85˝
What am I doing wrong, why do I have to have the gains all the way up to get any output. I know the prefabbed sealed box is a limiting factor, and I intend to remedy it quickly, but I still should have decent bass shouldn't I?