Register a free account today to become a member!
Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
After market speakers will invariably have lower sensitivity & stiffer cone suspension than OEM fitments.....Couple this to the above info & my advice would be;
Info hot off the Press;
99% of head units are fused at 10amps....
This 10amps is used to supply the CD laser, CD laser carriage, CD drive motor, Unit Illumination, Unit Display Panel & Finally internal Amplification....
A Speaker reproduces sound in accordance to the electrical signal it receives, if the electrical signal is strong & not 'clipped', then cone control is steady & quality is good....
If the electrical signal from the amplifier is weak or 'clipping' then the reproduced sound will be of poor quality, (cone movement becomes less controlled).....
An Amplifier has two voltage rails, +ve voltage & -ve voltage....the +ve voltage rail controls outward cone movement, the -ve voltage rail controls inward cone movement, these voltage rails rely on a solid power supply to maintain a constant voltage....
A speaker playing low notes will have a higher cone movement, so therefore require more power to maintain cone control, as the frequencies drop, cone excursion increases, (not covering enclosure type or tuning affecting excursion levels etc here), as excursion increases amplifier power requirements increase....
Before long you reach a point where there is simply no more power available, (higher power demand promotes voltage drop throughout the whole head unit supply), this drop in voltage will affect everything from illumination right through to the amplifier.....
If you check the pic you can see that A/B represents cone movement at full volume with no clipping....
C/D represents an overdriven amplifier which is suffering clip, you can see as the cone reaches full power it actually momentarily stops moving, whilst its at rest it is recieving full power and experiencing heat build up, (this momentary lack of natural cone movement can be heard as distortion), premature voice coil failure is likely if continually driven this hard....
E/F represents a cone running at below amplifier power, the excursion limit may well be approaching max but because the amp isn't strained, no distortion is evident.....
After market speakers will invariably have lower sensitivity & stiffer cone suspension than OEM fitments.....Couple this to the above info & my advice would be;
Save your money till you can fit extra amplifier output, whether its a better head unit or external amplification, its the only way to improve output quality & volume.....
