Need help. No mid-range bass.

[homie304]

Ok first here's my setup. I have a 2003 Jeep Wrangler 4 speaker system.

HU: Pioneer DEH-3400UB 50x4

Front dash: Boston Acoustic 5.25 SC55 150w

Roll Bar: JBL GTO638 6.5 180w

Amp: Boss R1400 400w x 4 not bridgeable 400 W MAX Power, 4 Channel 75 W X 4 RMS @ 2 ohm 38 W X 4 RMS @ 4 ohm high and low level inputs

Amp doesn't have a whole lot to configure. 2 low level rca inputs and 2 high level adapters and 2 gain knobs. not bridgeable.

I'm getting little to no midrange bass. I am by no means a car audio pro but i'm not terrible at it. Anyway when all 4 speakers are connected to my amp the sound coming out of the 6 1/2 speakers is extremely distorted. My fronts sound great as far as highs go. I turn the gain mostly all the way down and i get audio just not that great. I was thinking that maybe Channels 3 and 4 are possibly low pass signal and it's throwing lower frequencies? So i disconnected the 6.5's from channels 3 and 4 and piggy backed them on channels 1 and 2 with my front speakers. The sound was ok-ish but still no midrange bass of any kind. So i disconnected the amp altogether and ran all 4 speakers straight from the head unit. I get a light tap tap when bass hits but nothing like the 6.5's sounded like at the store.

I know it's gotta be something I have done wrong or maybe i need a crossover of some kind? I'm not expecting a mirror shaking boom, i know that, I just wanted some nice warm mid-range bass. If anyone is familiar with this amp and it's setup too I"m all ears. I'm just out of ideas and reaching out for some help. Thanks.

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[Massive spl]

Take a picture of your amp settings and we can help ya out

 

[homie304]

Hey thanks for the reply!

This is the "configurable side" of the amp. There's really nothing to it. I've tried adjusting the gains up and down the line and too high and it's distorted beyond belief and down just a bit is too soft with no mid-range bass.

 

[Massive spl]

Boss R1004 Riot Series 400W 4-Channel Car Amplifier

If this is your amp you need a new amp. That amp is the bottom of the barrel. Your CD player will prly do as much power as that amp. And there isn't any hpf filter or nothing.

 

[homie304]

I was afraid of that. It was given to me. It comes with 2 high pass adapters but yeah there's no filter. It's pretty basic. I was just hoping it would send some extra power to those 6.5"'s and make them sound decent. I don't understand why there's 0 bass or distorted bass though.

 

[Jeffdachef 5,000+ posts]

I was afraid of that. It was given to me. It comes with 2 high pass adapters but yeah there's no filter. It's pretty basic. I was just hoping it would send some extra power to those 6.5"'s and make them sound decent. I don't understand why there's 0 bass or distorted bass though.

because a simple speaker swap from stock could actually hurt bass/midbass a lot if you dont do a proper install.



Hope you learn a little bit on what it takes to get midbass with aftermarkets.

All that with good amounts of power from a quality amp.

 

[the727kid 10+ year member]

Before investing in a new amp, I would suggest making sure your speaker install is top notch first. This could make a huge difference. Seal off the door, deaden de-couple. Even doing something as simple as sealing the holes, building a proper baffle and using butyl rope can make a night and day difference.

 

[homie304]

Before investing in a new amp, I would suggest making sure your speaker install is top notch first. This could make a huge difference. Seal off the door, deaden de-couple. Even doing something as simple as sealing the holes, building a proper baffle and using butyl rope can make a night and day difference.

I think that's my problem. My enclosures weren't made for a 6.5" .. i just kind of made it work and there is gaps between the speakers and the enclosure. Thanks for the tips!

 

[bamaman]

I was lacking the mid bass after speaker swap too but followed a few videos on properly treating doors and it made a huge difference, don't be skeptical just do it, it's not a waste of money.

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