Speaker with improved frequency response and related electronic sound signal circuit, sound system and production method

A speaker (1), comprising:

• a coil arrangement (2) with at least two voice coils (3a, 3b), wherein each of the voice coils (3a, 3b) has an electrical conductor in the shape of loops running around a coil axis (A) in a loop section, wherein the voice coils (3a, 3b) are annular when viewed in a direction parallel to the coil axis (A) each having an inner circumference and an outer circumference and wherein the voice coils (3a, 3b) are arranged over one another in said direction;
• a magnet system (4) being designed to generate a magnetic field (B) transverse to the conductors of the voice coils (3a, 3b) in the loop section;
• and
• a membrane (10), which is fixed to the coil arrangement (2) and to the magnet system (4), wherein the membrane (10) forms a first connector between the coil arrangement (2) and the magnet system (4) with a first compliance (c1) and wherein the membrane (10) together with the coil arrangement (2) causes a first resonance frequency (fres1) for an oscillation of the membrane (10) in a direction parallel to the coil axis (A),
• wherein the speaker (1) in addition comprises a second
• connector (14, 17, 17a, 17b, 24, 25a, 25b) with a second compliance (c2), wherein the second connector (14, 17, 17a, 17b, 24, 25a, 25b) connects the voice coils (3a, 3b) of the coil arrangement (2), wherein the second
• connector (14, 17, 17a, 17b, 24, 25a, 25b) together with the voice coils (3a, 3b) of the coil arrangement (2) causes a second resonance frequency (fres2) for the oscillation of the membrane (10) in a direction parallel to the coil axis (A) and wherein the second resonance frequency (fres2) is above the first resonance frequency (fres1).