amp/subs problem...
Hello...
I have an MTX Thunder 152 sub hooked up to two Kenwood Tornado KFC-2505 subs in a sealed box, which is a little bigger than specs.
Problems:
1.) The amp runs very hot. I have it hooked up by parallel.
2.) The subs seem to distort, almost sounds like its farting, and I'm not even playing it that loud. Its like they sound like they are going to blow, and they vibrate a lot.
I also have a Pioneer P4000 deck and Infiniti speakers for the front. I have one Kenwood amp going to the inside speakers. The MTX goes to the subs. I want everything to be even, I don't want the inside to overpower the subs and vice versa. Another problem that I have is that the controls on the deck affect both the subs and the inside speakers, so if I don't want bass inside, I turn the low level down and it also turns the subs bass level down.
SPECS:
Thunder 152 Amplifier
--------------------------------------------------------------------------------
RMS Power measured at 12.5 Volts DC:
37.5 Watts x 2 into a 4 Ohm load with less than 0.05% Thd+N
75 Watts x 2 into a 2 Ohm load with less than 0.1% Thd+N
150 Watts bridged into a 4 Ohm load with less than 0.1% Thd+N
Dynamic Power (IHF-202 Standard) measured at 14.4 Volts DC
90 Watts x 2 into a 4 Ohm load
165 Watts x 2 into a 2 Ohm load
325 Watts bridged into a 4 Ohm load
Signal to Noise Ratio:
110dB A-Weighted
Damping Factor:
>200
Frequency Response:
20Hz-20kHz ± 0.25dB
Maximum Input:
8Vrms
Thunder EQ:
Variable Bass Boost (0-18dB) centered at 40Hz
Crossover:
Variable 40Hz to 200Hz, 12dB/octave high pass,
24dB/octave low pass with mono output
Dimensions:
8” x 9” x 2” (20.3cm x 22.8cm x 5cm)
9-1/4” x 9” x 2” (23.5cm x 22.8cm x 5 cm) Including IsoFeet™
SUBS:
Subwoofer Specifications
Size: 10 inch
Rec. Sealed Box Dims: 1.00 cu.ft.
Rec. Ported Box Dims: 1.10 cu.ft.
Free Air Usage: not recommended
Sensitivity: 91 dB
Frequency Response: 28-800 Hz
Recommended RMS Power: 150W
Peak Power Handling: 500W
Impedance: 4 ohms
I currently have this setup on my deck:
Low: -6
Mid: -4
High: +5
Loud: Mid
What should I do to fix these problems? Please help. Thanks.