LC7I pro adjusting Accubass threshold and level for more mid-bass at medium level volume

[VegasCRV]

​

2025 Honda CRV
Kicker CXA6605 4 CH 4 x 90 watts W/300 Watt Sub Channel
Focal 165 Access 6.5 component speakers 60 watts RMS/120 Watts max
P25F Focal EVO Flax 10 inch sub sealed box 300 watts RMS/600 Watts max
LC7I Pro 6 channel LOC

Does anyone have experience with lowering the Accubass threshold before the OEM bass roll off or increasing the Accubass level to get stronger mid-bass in the speakers at medium volume? What are the pros and cons of this?

The solution I am trying to solve is low speaker mid bass at medium level volume even with speaker gains turned up to 75%.



I have removed the active noise cancellation unit. The subwoofer works great. I have tried several different cross-overs. I think my favorite cross-over is 70hz speakers and 90hz subwoofer.

It is currently a very smooth transition into strong mid-bass as the volume is turned loud. I can make the car doors vibrate if I wish. There are no gaps and very limited distortion as the volume is turned loud. But by that point the volume is so loud it hurts my ears.

But at the medium volume levels where I do the majority of my listening, the mid-bass is really lacking and bothering me.

I don’t have any obvious indication that the audio shop set-up the LC7I incorrectly. But unfortunately the installers at the car audio shop won’t answer my questions or help me which is strange as I have not been demanding at all. Yes, it is time for me to find a new car audio shop.

I hope to have some feedback before I start removing panels to get to the LOC.

As you can probably tell, I am not a big fan of a subwoofer for all my bass needs.

Any other solutions to increasing the speaker mid bass at lower volumes with my set-up without purchasing a whole new system? Or should I say reasonable cost solutions?

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[zoltman1991]

I'm posting because I'm curious of your outcome.
I have a 2020 Lexus ES350 with an LC2i. It is tapped to the rear 8". I believe the Mark Levinson stock amp only sends signals 60hz and below to that sub, leaving 60hz+ to my front door 6x9 (only lows).

I have a huge gap in the 60-80 and it bothers me quite a bit. My plan is to either get the LC8i or a DSP. This leads me to my question for you (and HOPEFULLY) a solution. Do you think if you combined the signals of your inputs to your subwoofer output, you'd restore this missing gap? Idea is we don't know for sure what your Honda is sending to it's stock sub (assuming it has one. or whatever your sub output is sourced from). My thinking is that if you make this range broad, your LPF on your amp will then focus on what you want, hopefully filling the gap.

 

[spokey9 5,000+ posts]

Honda messes with the signal bad

 

[VegasCRV]

I just got off the phone with tech support at AudioControl/LCIPro and they said they do know of people moving the threshold clockwise for Accubass to engage before the OEM roll-off and in theory it could help increase midbase/bass at lower volumes. However, they have not heard back from customers to see what the result was. Of course there are potential consequences of Accubass then not being linear anymore but they are not sure if that means non-linear in a disturbing function or just at certain volumes that would not greatly hurt your particular listening experience. It is not a common solution but definitely worth a try if you could get into the LOC easily and spend some time tweaking the system. If I can get to the LOC, I will try but I think the thing is hidden below a lot of car of dash panels.

 

[VegasCRV]

I'm posting because I'm curious of your outcome.
I have a 2020 Lexus ES350 with an LC2i. It is tapped to the rear 8". I believe the Mark Levinson stock amp only sends signals 60hz and below to that sub, leaving 60hz+ to my front door 6x9 (only lows).

I have a huge gap in the 60-80 and it bothers me quite a bit. My plan is to either get the LC8i or a DSP. This leads me to my question for you (and HOPEFULLY) a solution. Do you think if you combined the signals of your inputs to your subwoofer output, you'd restore this missing gap? Idea is we don't know for sure what your Honda is sending to it's stock sub (assuming it has one. or whatever your sub output is sourced from). My thinking is that if you make this range broad, your LPF on your amp will then focus on what you want, hopefully filling the gap.

Your post is welcome. We are all trying to learn more about car audio. Good luck. I hope you find your answer.

 

[VegasCRV]

​

2025 Honda CRV
Kicker CXA6605 4 CH 4 x 90 watts W/300 Watt Sub Channel
Focal 165 Access 6.5 component speakers 60 watts RMS/120 Watts max
P25F Focal EVO Flax 10 inch sub sealed box 300 watts RMS/600 Watts max
LC7I Pro 6 channel LOC

Does anyone have experience with lowering the Accubass threshold before the OEM bass roll off or increasing the Accubass level to get stronger mid-bass in the speakers at medium volume? What are the pros and cons of this?

The solution I am trying to solve is low speaker mid bass at medium level volume even with speaker gains turned up to 75%.



I have removed the active noise cancellation unit. The subwoofer works great. I have tried several different cross-overs. I think my favorite cross-over is 70hz speakers and 90hz subwoofer.

It is currently a very smooth transition into strong mid-bass as the volume is turned loud. I can make the car doors vibrate if I wish. There are no gaps and very limited distortion as the volume is turned loud. But by that point the volume is so loud it hurts my ears.

But at the medium volume levels where I do the majority of my listening, the mid-bass is really lacking and bothering me.

I don’t have any obvious indication that the audio shop set-up the LC7I incorrectly. But unfortunately the installers at the car audio shop won’t answer my questions or help me which is strange as I have not been demanding at all. Yes, it is time for me to find a new car audio shop.

I hope to have some feedback before I start removing panels to get to the LOC.

As you can probably tell, I am not a big fan of a subwoofer for all my bass needs.

Any other solutions to increasing the speaker mid bass at lower volumes with my set-up without purchasing a whole new system? Or should I say reasonable cost solutions?

I'm posting because I'm curious of your outcome.
I have a 2020 Lexus ES350 with an LC2i. It is tapped to the rear 8". I believe the Mark Levinson stock amp only sends signals 60hz and below to that sub, leaving 60hz+ to my front door 6x9 (only lows).

I have a huge gap in the 60-80 and it bothers me quite a bit. My plan is to either get the LC8i or a DSP. This leads me to my question for you (and HOPEFULLY) a solution. Do you think if you combined the signals of your inputs to your subwoofer output, you'd restore this missing gap? Idea is we don't know for sure what your Honda is sending to it's stock sub (assuming it has one. or whatever your sub output is sourced from). My thinking is that if you make this range broad, your LPF on your amp will then focus on what you want, hopefully filling the gap.

​

2025 Honda CRV
Kicker CXA6605 4 CH 4 x 90 watts W/300 Watt Sub Channel
Focal 165 Access 6.5 component speakers 60 watts RMS/120 Watts max
P25F Focal EVO Flax 10 inch sub sealed box 300 watts RMS/600 Watts max
LC7I Pro 6 channel LOC

Does anyone have experience with lowering the Accubass threshold before the OEM bass roll off or increasing the Accubass level to get stronger mid-bass in the speakers at medium volume? What are the pros and cons of this?

The solution I am trying to solve is low speaker mid bass at medium level volume even with speaker gains turned up to 75%.



I have removed the active noise cancellation unit. The subwoofer works great. I have tried several different cross-overs. I think my favorite cross-over is 70hz speakers and 90hz subwoofer.

It is currently a very smooth transition into strong mid-bass as the volume is turned loud. I can make the car doors vibrate if I wish. There are no gaps and very limited distortion as the volume is turned loud. But by that point the volume is so loud it hurts my ears.

But at the medium volume levels where I do the majority of my listening, the mid-bass is really lacking and bothering me.

I don’t have any obvious indication that the audio shop set-up the LC7I incorrectly. But unfortunately the installers at the car audio shop won’t answer my questions or help me which is strange as I have not been demanding at all. Yes, it is time for me to find a new car audio shop.

I hope to have some feedback before I start removing panels to get to the LOC.

As you can probably tell, I am not a big fan of a subwoofer for all my bass needs.

Any other solutions to increasing the speaker mid bass at lower volumes with my set-up without purchasing a whole new system? Or should I say reasonable cost solutions?

After reading some more car audio posts, I think I am looking at the wrong problem. My problem is not lack of mid bass/bass at medium volumes but the tone, pitch and frequency of the bright focal speakers is just not working well in my car. That is why when ever I turn up the volume it hurts my ears. I think what I need to look at now is either getting warmer speakers or a DSP.

 

[VegasCRV]

I'm posting because I'm curious of your outcome.
I have a 2020 Lexus ES350 with an LC2i. It is tapped to the rear 8". I believe the Mark Levinson stock amp only sends signals 60hz and below to that sub, leaving 60hz+ to my front door 6x9 (only lows).

I have a huge gap in the 60-80 and it bothers me quite a bit. My plan is to either get the LC8i or a DSP. This leads me to my question for you (and HOPEFULLY) a solution. Do you think if you combined the signals of your inputs to your subwoofer output, you'd restore this missing gap? Idea is we don't know for sure what your Honda is sending to it's stock sub (assuming it has one. or whatever your sub output is sourced from). My thinking is that if you make this range broad, your LPF on your amp will then focus on what you want, hopefully filling the gap.

I am in the process now of getting a DSP. I would assume you will be going that route as well.

 

[zoltman1991]

I am in the process now of getting a DSP. I would assume you will be going that route as well.

I ended up getting the DSP.2 order off of eBay! That with the URC.3 knob for about $500. Not terrible.

 

[Alexander Cole]

I'm posting because I'm curious of your outcome.
I have a 2020 Lexus ES350 with an LC2i. It is tapped to the rear 8". I believe the Mark Levinson stock amp only sends signals 60hz and below to that sub, leaving 60hz+ to my front door 6x9 (only lows).

I have a huge gap in the 60-80 and it bothers me quite a bit. My plan is to either get the LC8i or a DSP. This leads me to my question for you (and HOPEFULLY) a solution. Do you think if you combined the signals of your inputs to your subwoofer output, you'd restore this missing gap? Idea is we don't know for sure what your Honda is sending to it's stock sub (assuming it has one. or whatever your sub output is sourced from). My thinking is that if you make this range broad, your LPF on your amp will then focus on what you want, hopefully filling the gap.

 

[Alexander Cole]

what i looked up for that problem i have a lexus gx470 so it has the mark levison you have to connected the speaker wires straight from the factory amp and tap the front door speakers by doing doing this it will by pass all the factory eqs and all that other unnecessary stuff. id recommend a professional to do it though for sure unless your really good with wiring

 

[1aespinoza Premium Member]

what i looked up for that problem i have a lexus gx470 so it has the mark levison you have to connected the speaker wires straight from the factory amp and tap the front door speakers by doing doing this it will by pass all the factory eqs and all that other unnecessary stuff. id recommend a professional to do it though for sure unless your really good with wiring

In cases like this you use a DSP that has signal summing and signal leveler. It puts out a flat clean signal that your amp can modify. The connection process is exactly as you wrote.

 

[1aespinoza Premium Member]

what i looked up for that problem i have a lexus gx470 so it has the mark levison you have to connected the speaker wires straight from the factory amp and tap the front door speakers by doing doing this it will by pass all the factory eqs and all that other unnecessary stuff. id recommend a professional to do it though for sure unless your really good with wiring

In cases like this you use a DSP that has signal summing and signal leveler. It puts out a flat clean signal that your amp can modify. The connection process is exactly as you wrote.