I bought a second hand vintage boombox and the left (full-range/'woofer') speaker has gone so I replaced both speakers with some Sony ones. The Sony ones are taken from of cabinets lying around (the only ones I have that fit inside the boombox).
The Sony ones sounds nice however they are more sensitive to mid-tones. I noticed this before when inside the original cabinet (cabinet taken from), no filters at all are used (boombox and cabinet). It seems it is a characteristic of this speaker.
I understand it is a different speaker with other characteristics but what makes it more sensitive especially to mid-tones? The mid-tones on these speakers are pretty intense.
In general, is it the type of materials, foam and paper type, stiffness, depth (paper angle), cone size, coil diameter, coil windings, magnet (size or strongness)...... what makes it more sensitive to mid-tones (again, no filters are used)?
Any thoughts on this?