So I have my 07/08 Nissan Skyline. Now it only has the factory 6-speaker system with slots for rear window Sub/6X9's.

To be honest the sound is decent until you get to the upper range of the volume control. Then the highs become distorted by the bass (even with the bass all the way down)

So I have concluded as below

Running a 4-channel Equalizer for the door speakers, and using a 2-channel amp I have to run an open air Sub in the factory location and the 6x9's.. I'm not after super loud/super bassy, but I would like crisp clear sound all the way through the range including volume. Especially with the noise activated volume control, it just breaks the clarity and sounds terrible

1. Has anyone ever installed an aftermarket equalizer in these vehicles
2. What size is the factory open air sub
3. What size are door speakers front and rear
4. What size are the rear deck speakers

 

MODERATOR EDIT: Spam

 

@gefat Are you talking about the old Yamaha big wheel motorcycle? BW350 ? There's no stereo on that motorcycle.

 

MODERATOR EDIT: SPAM