Adultishgambino
New Member
- First Name
- Nate
- Joined
- Feb 8, 2021
- Threads
- 1
- Messages
- 1
- Reaction score
- 0
- Location
- Ontario, Canada
- Vehicle(s)
- 2020 civic lx
- Thread starter
- #1
Hey all,
I’ve been lurking here for a while especially for help when installing my sub into my civic I got in November. So I’m wondering if anybody else is having the same issue as me. For reference I have a 2020 civic lx (Canada) and I installed a single 12 inch JL audio subwoofer(4 ohms) plugged into a JBL GTX 500. At 4 ohms the amp puts out 350 watts so nothing crazy. Tuned using multimeter with a YouTube test tone where I found the square root of ohms x wattage and set the voltage to that (about 36v). My issue is when I set the volume past about 20 I notice slight dimming in my headlights then when I get to 30 it’s definitely noticeable if I’m behind someone at night I can see my headlights getting dim as the bass hits. If anyone’s had this issue, how did you fix it? I haven’t seen a thread for this specific model civic. Is something as low powered as this setup really putting a huge strain on my alternator? Maybe because I have the lx model the alternator and battery are different and better in the higher models? Most other models run a 8(?) inch subwoofer and do just fine so does Honda just cheap out on the electricals between the models? I know in my buddys infinity q50 the car comes stock with a capacitor (Bose sound system) and he runs mtx twin 12s with no issues he got his professionally installed and he said they tapped it into the cap so would getting a capacitor solve my issue because from what I read on these forums a lot of people preach these do nothing but if one came stock with a Bose system then seems like it would help no? Any help is appreciated!
I’ve been lurking here for a while especially for help when installing my sub into my civic I got in November. So I’m wondering if anybody else is having the same issue as me. For reference I have a 2020 civic lx (Canada) and I installed a single 12 inch JL audio subwoofer(4 ohms) plugged into a JBL GTX 500. At 4 ohms the amp puts out 350 watts so nothing crazy. Tuned using multimeter with a YouTube test tone where I found the square root of ohms x wattage and set the voltage to that (about 36v). My issue is when I set the volume past about 20 I notice slight dimming in my headlights then when I get to 30 it’s definitely noticeable if I’m behind someone at night I can see my headlights getting dim as the bass hits. If anyone’s had this issue, how did you fix it? I haven’t seen a thread for this specific model civic. Is something as low powered as this setup really putting a huge strain on my alternator? Maybe because I have the lx model the alternator and battery are different and better in the higher models? Most other models run a 8(?) inch subwoofer and do just fine so does Honda just cheap out on the electricals between the models? I know in my buddys infinity q50 the car comes stock with a capacitor (Bose sound system) and he runs mtx twin 12s with no issues he got his professionally installed and he said they tapped it into the cap so would getting a capacitor solve my issue because from what I read on these forums a lot of people preach these do nothing but if one came stock with a Bose system then seems like it would help no? Any help is appreciated!
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